Task - Spring - FooBar App #30

akash-coded · 2022-04-12T06:41:03Z

akash-coded
Apr 12, 2022
Maintainer

Create a Spring application by adding the Spring external JARs manually.

The application will be named spring-foobar-app and it will have a main package com.spring.foobar. Your code files should be present within the main package.

Create an XML-schema-based configuration file named applicationContext.xml directly under the src folder.

Create two Bean classes - Foo and Bar. The class Foo will have a name data member of type String. The Bar class will have three data members: String name, int age, and a dependency (object reference) Foo foo. The classes will have constructors, accessors, and mutators, and overrides the toString() method.

Write bean definitions for the two Bean classes in applicationContext.xml and initialize the data members.

Demonstrate the working of the application in the driver class Application.

GouthamGunji · 2022-04-12T07:25:12Z

GouthamGunji
Apr 12, 2022

Beans

Foo.java

package com.spring.assignment.beans;

public class Foo {
	private String name;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Foo(String name) {
		this.name = name;
	}

	public Foo() {
	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}

}

Bar.java

package com.spring.assignment.beans;

public class Bar {
	private String name;
	private int age;
	private Foo foo;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}

	public Bar(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public Bar() {
		super();
	}

	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + "]";
	}
	
	

}

Driver

package com.spring.assignment;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.assignment.beans.Bar;
import com.spring.assignment.beans.Foo;

public class Application {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
		
		System.out.println("Welcome to spring Assignment");
		
		Bar bar = context.getBean("bar", Bar.class);
		System.out.println(bar);
		System.out.println(bar.getFoo());
		
                // getting the bean only with id 
		Foo foo = (Foo) context.getBean("foo");
		System.out.println(foo);
		
		context.close();
	}

}

Application Context Configuration

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.assignment.beans.Foo">
      	<constructor-arg index="0" value="ABC"></constructor-arg>
      </bean>
      
      <bean id="bar" class="com.spring.assignment.beans.Bar">
      	<constructor-arg type="String" value="GK"></constructor-arg>
      	<constructor-arg type="int" value="101"></constructor-arg>
      	<property name="foo" ref="foo"></property>
      </bean>
      
      
</beans>

screenshot

0 replies

Svishva · 2022-04-12T14:13:17Z

Svishva
Apr 12, 2022

//Visweshwaran M

Beans

Foo.java

public class Foo {

	private String name;

	public Foo() {
	}

	public Foo(String name) {
		this.setName(name);
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return new StringBuilder().append("Foo [name=").append(name).append("]").toString();
	}

}

Bar.java

public class Bar {

	private String name;
	private int age;
	private Foo foo;

	public Bar() {

	}

	public Bar(String name, int age) {
		this.name = name;
		this.age = age;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}

	@Override
	public String toString() {
		return new StringBuilder().append("Bar [name=").append(name).append(", age=").append(age).append(", foo=")
				.append(foo).append("]").toString();
	}

	public void printDataVar() {
		System.out.println(new StringBuilder().append("\n First Name: ").append(this.name).append("\n Last Name: ")
				.append(this.foo.getName()).append("\n Age: ").append(this.age).append("\n"));

	}
}

Driver

public class Application {
	public static void main(String[] args) {
		System.out.println("Application.main() Started");
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
		Bar bar = context.getBean("bar", Bar.class);
		bar.printDataVar();
		context.close();
		System.out.println("Application.main() Ended");
	}
}

Application Context Configuration

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.foobar.Foo" >
     	<constructor-arg index="0" value="Muralidaran" ></constructor-arg>
      </bean>
      
      <bean id="bar" class="com.spring.foobar.Bar">
      	<constructor-arg type="String" value="Visweshwaran"></constructor-arg>
      	<constructor-arg type="int" value="26"></constructor-arg>
      	<property name="foo" ref="foo"></property>
      </bean>
      
</beans>

Screenshot

0 replies

Kalairajavadivel · 2022-04-12T16:12:17Z

Kalairajavadivel
Apr 12, 2022

Foo.java

package com.spring.foo;

public class Foo {
	private String name;
	
	public Foo() {
		
	}
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Foo(String name) {
		this.name = name;
	}
	
	public void greetUser() {
		System.out.println("Name"+" "+this.name);
	}
	
	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}
}

0 replies

Kalairajavadivel · 2022-04-12T16:13:59Z

Kalairajavadivel
Apr 12, 2022

Bar.java

package com.spring.foo;

public class Bar {
	private String name;
	private int age;
	private Foo foo;

	public Bar() {

	}
	public Bar(String name, int age) {
		this.name = name;
		this.age = age;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}
	public void greetUser() {
		System.out.println("Personal Details"+" "+this.name+" "+this.age);
	}

	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + "]";
	}
}

0 replies

Kalairajavadivel · 2022-04-12T16:15:40Z

Kalairajavadivel
Apr 12, 2022

Driver

package com.spring.foo.application;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foo.Bar;
import com.spring.foo.Foo;

public class Application {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
		
		System.out.println("Spring Application Started!");
		
		Bar bar = context.getBean("bar", Bar.class);
		bar.greetUser();
	
		Foo foo = context.getBean("foo", Foo.class);
		foo.greetUser();
		
		context.close();
	}
}

0 replies

Kalairajavadivel · 2022-04-12T16:16:59Z

Kalairajavadivel
Apr 12, 2022

Application Context Config

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"> <!-- bean definitions here -->

<bean id="foo" class="com.spring.foo.Foo">
<constructor-arg  type="java.lang.String" value="Kalai"></constructor-arg> 
</bean>

<bean id="bar" class="com.spring.foo.Bar">
<constructor-arg type="java.lang.String" value="Kalai"></constructor-arg> 
<constructor-arg type="int" value="25"></constructor-arg>
<property name="foo" ref="foo"></property>

</bean>
</beans>

0 replies

Kalairajavadivel · 2022-04-12T16:23:26Z

Kalairajavadivel
Apr 12, 2022

0 replies

Anandhi22 · 2022-04-12T17:31:04Z

Anandhi22
Apr 12, 2022

Beans

Foo Class

package com.spring.foobar;

public class Foo {

	private String name;

	public Foo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;

	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}

}

Bar Class

package com.spring.foobar;

public class Bar {

	private String name;
	private int age;
	private Foo foo;

	public Bar() {

	}

	public Bar(String name, int age, Foo foo) {
		super();
		this.name = name;
		this.age = age;
		this.foo = foo;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}

}

Driver

package com.spring.foobar;


import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Application {

	public static void main(String[] args) {
		
   AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
		
		System.out.println("our Spring App");
		
		Foo fooObj = context.getBean("foo", Foo.class);
		Bar barObj = context.getBean("bar", Bar.class);
		barObj.setFoo(fooObj);
		System.out.println(barObj);
		System.out.println(fooObj);

          context.close();
	}

}

Application Context Configuration

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
   
     http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      
<bean id = "foo" class = "com.spring.foobar.Foo">
<constructor-arg index = "0"  value = "Anandhi"></constructor-arg>
</bean>

<bean id = "bar" class = "com.spring.foobar.Bar">
<property name = "age" value = "24"></property>
<property name = "name" value = "Anu"></property>
<property name = "foo"  ref = "foo"></property>
</bean>
   
   
 </beans>

Screenshot

0 replies

vamsi1234567891 · 2022-04-13T02:01:13Z

vamsi1234567891
Apr 13, 2022

###Beans
##Bar

package com.spring.foobar.beans;

public class Bar {

String name;
int age;
Foo foo;

public Bar() {
	super();
}

public Bar(String name, int age, Foo foo) {
	super();
	this.name = name;
	this.age = age;
	this.foo = foo;
}

public String getName() {
	return name;
}
public void setName(String name) {
	this.name = name;
}
public int getAge() {
	return age;
}
public void setAge(int age) {
	this.age = age;
}
public Foo getFoo() {
	return foo;
}
public void setFoo(Foo foo) {
	this.foo = foo;
}

@Override
public String toString() {
	return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
}
public void show() {
	System.out.println(name+" "+age);
	System.out.println(foo);
	
}

}

##Foo
package com.spring.foobar.beans;

public class Foo {

String name;

public Foo() {
	super();
}

public Foo(String name) {
	super();
	this.name = name;
}

public String getName() {
	return name;
}

public void setName(String name) {
	this.name = name;
}


@Override
public String toString() {
	return "Foo [name=" + name + "]";
}

}

##Driver
package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;

public class Application {

public static void main(String[] args) {
	AbstractApplicationContext context = new ClassPathXmlApplicationContext("ApplicationContext.xml");
    System.out.println("first application");
	Bar bar=context.getBean("bar",Bar.class);
	System.out.println(bar);
	//bar.show();
	
	Foo foo=(Foo) context.getBean("foo");
	System.out.println(foo);
	context.close();
}

}

##ApplicationContext.xml

  <bean id="foo" class="com.spring.foobar.beans.Foo">
  <constructor-arg  index="0" value="krishna"> </constructor-arg>
  </bean>
  <bean id="bar" class="com.spring.foobar.beans.Bar">
  <constructor-arg value="vamsi" type="String"></constructor-arg>
  <constructor-arg value="10" type="int"></constructor-arg>
  <constructor-arg ref="foo"></constructor-arg>
  <!-- <property name="foo" ref="foo"></property> -->
  </bean>

##ScreenShot

0 replies

Thiripurasundari-1223 · 2022-04-18T07:53:06Z

Thiripurasundari-1223
Apr 18, 2022

Bar

public class Bar {

	String name;
	int age;
	Foo foo;
	public Bar() {
		super();
	}
	public Bar(String name, int age, Foo foo) {
		super();
		this.name = name;
		this.age = age;
		this.foo = foo;
	}
	
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public Foo getFoo() {
		return foo;
	}
	public void setFoo(Foo foo) {
		this.foo = foo;
	}


	@Override
	public String toString() {
		return "Boo [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}	

}

``

Foo

	package com.spring.foobar;
	
	public class Foo {
		String name;
	
		public Foo() {
			super();
		}
		public Foo(String name) {
			super();
			this.name = name;
		}
		public String getName() {
			return name;
		}
	
		public void setName(String name) {
			this.name = name;
		}

		@Override
		public String toString() {
			return "[name=" + name + "]";
		}
		
	}

applicationContext.xml

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
   
     http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      
<bean id = "foo" class = "com.spring.foobar.Foo">
<constructor-arg index = "0"  value = "Thiru"></constructor-arg>
</bean>

<bean id = "bar" class = "com.spring.foobar.Bar">
<property name = "age" value = "23"></property>
<property name = "name" value = "Poorani"></property>
<property name = "foo"  ref = "foo"></property>
</bean>
   
   
 </beans>

Driver

public class Application {

	public static void main(String[] args) {
		
   AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
		
		Foo foo= context.getBean("foo", Foo.class);
		Bar bar = context.getBean("bar", Bar.class);
		bar.setFoo(foo);
		System.out.println("My Details :"+bar);
		System.out.println("Foo :"+foo);
		

          context.close();
	}

}

0 replies

Trivikram-Sharma · 2022-05-14T16:59:18Z

Trivikram-Sharma
May 14, 2022

Foo

package com.spring.foobar.beans;

public class Foo {
	private String name;

	public Foo() {
		super();
	}

	public Foo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}
	
}

Bar

package com.spring.foobar.beans;

public class Bar {
	private String name;
	private int age;
	private Foo foo;
	public Bar() {
		super();
	}
	public Bar(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public Foo getFoo() {
		return foo;
	}
	public void setFoo(Foo foo) {
		this.foo = foo;
	}
	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}
	
	
}

applicationContext.xml

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.foobar.beans.Foo">
      	<constructor-arg index="0" value="Sample Foo Name"></constructor-arg>
      </bean>
      
      <bean id="bar" class="com.spring.foobar.beans.Bar">
      	<constructor-arg type="int" value="32" />
      	<constructor-arg type="java.lang.String" value="Manish Malhotra" />
      	<property name="foo" ref="foo"></property>
      </bean>
</beans>

Application.java

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;

public class Application {

	public static void main(String[] args) {
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); //Launcehs the application
		System.out.println("Foobar Application Demo");
		Foo f = context.getBean("foo",Foo.class);
		Bar b = context.getBean("bar",Bar.class);
		
		System.out.println(f);
		System.out.println(b);
		
		
		context.close(); //Closing the context
	}

}

0 replies

Manvendra1097-eng · 2022-05-14T17:09:47Z

Manvendra1097-eng
May 14, 2022

Bean

Foo Bean

package com.spring.foobar;

public class Foo {
	private String name;

	public Foo() {
	}

	public Foo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}

}

Bar Bean

package com.spring.foobar;

public class Bar {
	
	private Foo foo;
	
	private String name;
	
	private int age;

        public Bar() {}

	public Bar(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	@Override
	public String toString() {
		return "Bar [foo=" + foo + ", name=" + name + ", age=" + age + "]";
	}

}

Driver class

Application.java
package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Application {

	public static void main(String[] args) {

		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); 
		
		Foo foo = context.getBean("foo",Foo.class);
		
		Bar bar = context.getBean("bar",Bar.class);
		bar.setFoo(foo);
		
		System.out.println("Printing Foo bean : "+foo);
		
		System.out.println("Pring Bar bean : "+bar);
		
		context.close();
	}

}

Application Context XML

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
    <!-- bean definitions go here -->
    <bean id="foo" class="com.spring.foobar.Foo">
        <constructor-arg index="0" value="testFoo"></constructor-arg>
    </bean>
    
    <bean id="bar" class="com.spring.foobar.Bar">
        <constructor-arg index="0" value="testBar"></constructor-arg>
        <constructor-arg index="1" value="26"></constructor-arg>
    </bean>
    
</beans>

0 replies

KanimozhiThandapani · 2022-05-14T17:11:53Z

KanimozhiThandapani
May 14, 2022

applicationContext.xml

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
 

  <bean id="foo" class="com.spring.foobar.beans.Foo">
        <constructor-arg index="0" value="Thandapani"></constructor-arg>
  </bean>
  <bean id="bar" class="com.spring.foobar.beans.Bar">
        <constructor-arg type="int" value="24"></constructor-arg>
        <constructor-arg type="java.lang.String" value="Kanimozhi"></constructor-arg>
        <property name="foo" ref="foo"></property>
  </bean>
</beans>

Foo.java

package com.spring.foobar.beans;

public class Foo{
	private String name;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Foo() {}
	public Foo(String name) {
		this.name = name;
	}
	
	@Override
	public String toString() {
		return "Foo[LastName="+ name +"]";
	}
}

Bar.java

package com.spring.foobar.beans;

import com.spring.foobar.beans.Foo;

public class Bar{
	private String name;
	private int age;
	private Foo foo;
	
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	
	public void setFoo(Foo foo) {
		this.foo = foo;
	}
	public Foo getFoo() {
		return foo;
	}
	
	//Constructors
	public Bar() {};
	public Bar(String name,int age) {
		this.name = name;
		this.age = age;
	}
	
	
	public void processFooName() {
		System.out.println("Name in Injected Foo is:"+foo.getName());
	}
	
	@Override
	public String toString() {
		return "Bar[age="+age+" ,foo="+foo+",FirstName="+name+"]";
	}
	
	public void printData() {
		System.out.println(new StringBuilder().append("\n First Name: ").append(this.name).append("\n Last Name: ")
				.append(this.foo.getName()).append("\n Age: ").append(this.age).append("\n"));

	}
}

Application.java

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Foo;
import com.spring.foobar.beans.Bar;

public class Application {

	public static void main(String[] args) {
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");//Launches the Application
		System.out.println("Our Spring Demo Work Starts!!");
		
		Foo foo = context.getBean("foo",Foo.class);
		System.out.println(foo);
		Bar bar = context.getBean("bar",Bar.class);
		System.out.println(bar);
		bar.printData();
		
		context.close();//Shut Down the App
	}

}

0 replies

pendyalakamalkumar · 2022-05-14T17:34:19Z

pendyalakamalkumar
May 14, 2022

package com.spring.foo;

public class Foo {
private String name;

public Foo() {
	super();
	// TODO Auto-generated constructor stub
}

public Foo(String name) {
	super();
	this.name = name;
}

public String getName() {
	return name;
}

public void setName(String name) {
	this.name = name;
}

@Override
public String toString() {
	return "Foo [name=" + name + "]";
}

}

1 reply

pendyalakamalkumar May 14, 2022

I have created a seprate package for bar pojo class

pendyalakamalkumar · 2022-05-14T17:34:46Z

pendyalakamalkumar
May 14, 2022

package com.spring.bar;

import com.spring.foo.Foo;

public class Bar {
private String name;
private String id;
private Foo foo;
public Bar() {
super();
// TODO Auto-generated constructor stub
}
public Bar(String name, String id) {
super();
this.name = name;
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public Foo getFoo() {
return foo;
}
public void setFoo(Foo foo) {
this.foo = foo;
}
@OverRide
public String toString() {
return "Bar [name=" + name + ", id=" + id + "]";
}

}

1 reply

pendyalakamalkumar May 14, 2022

Created a seprate package for the bar pojo class

pendyalakamalkumar · 2022-05-14T17:38:40Z

pendyalakamalkumar
May 14, 2022

0 replies

SankalpHP · 2022-05-15T11:09:14Z

SankalpHP
May 15, 2022

Foo

package com.spring.foobar.beans;

public class Foo {
    private String `Name;`

	public Foo() {
		super();
	}

	public Foo(String name) {
		super();
		Name = name;
	}

	public String getName() {
		return Name;
	}

	public void setName(String name) {
		Name = name;
	}

	@Override
	public String toString() {
		return "Foo [Name=" + Name + "]";
	}
    
}

Bar

package com.spring.foobar.beans;

public class Bar {

	private String name;
	private int age;
	private Foo foo;
	
	public Bar() {
		super();
	}

	public Bar(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}

	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + "]";
	}
}

Application.java

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;

public class Application {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
         AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); 
         
         context.start();
         System.out.println("Our Spring apps Works!");
         
          
         Bar bar = context.getBean("Bar", Bar.class);
         System.out.println(bar);
        
         
         Foo fo = context.getBean("Foo",Foo.class);
         System.out.println(fo);
         context.close();
	}

}

applicationContext.xml

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="Foo" class="com.spring.foobar.beans.Foo">
      
      		<constructor-arg index="0" value="sankalpFoo"></constructor-arg >
      		
      </bean>
      
      <bean id="Bar" class="com.spring.foobar.beans.Bar">
      
      		<constructor-arg index="0" value="sankalpBar"></constructor-arg >
      		<constructor-arg index="1" value="21"></constructor-arg >
      		
      		
      </bean>
      
     </beans>
![FoolBarOutPut](https://user-images.githubusercontent.com/97338370/168469612-94462796-1144-43e7-8378-8da0ba74e819.PNG)

0 replies

synghs67 · 2022-05-15T12:22:29Z

synghs67
May 15, 2022

Main Class

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
System.out.println(" Spring App Will works");
		
		Foo foo = context.getBean("foo", Foo.class);
		Bar bar = context.getBean("bar", Bar.class);
		//barObj.setFoo(fooObj);
		System.out.println(foo);
		System.out.println(bar);

          context.close();

	}

}

Foo

package com.spring.foobar.beans;

public class Foo {
	private String name;
	
	

	public Foo() {
		super();
	}



	public Foo(String name) {
		super();
		this.name = name;
	}



	public String getName() {
		return name;
	}



	public void setName(String name) {
		this.name = name;
	}



	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}
	
}

Bar

package com.spring.foobar.beans;

public class Bar {
	
	private String name ;
	 private int age ;
	 private Foo foo;
	
	 public Bar() {
		super();
		// TODO Auto-generated constructor stub
	}

	public Bar(String name, int age, Foo foo) {
		super();
		this.name = name;
		this.age = age;
		this.foo = foo;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}
	
	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}
	 
	 
	 
}

XML File

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.foobar.beans.Foo">
        <constructor-arg index="0" value="Sayan"></constructor-arg>
    </bean>
    
    <bean id="bar" class="com.spring.foobar.beans.Bar">
        <property name = "age" value = "26"></property>
  <property name = "name" value = "SYN"></property>
  <property name = "foo"  ref = "foo"></property>        
    </bean>
    
    
    
      
</beans>

SS

![image](https://user-images.githubusercontent.com/23530210/168472542-d913b83f-3222-4f49-830d-fc1e3a155c32.png)

@akash-coded Sir, I've got errors but fixed them after seeing the previous problem, XML File-based issue I've.

0 replies

harsha916 · 2022-05-15T16:38:31Z

harsha916
May 15, 2022

https://github.com/harsha916/newFooBar
PFA link for FooBar

0 replies

gayatribabar · 2022-07-20T09:25:16Z

gayatribabar
Jul 20, 2022

Foo

package com.spring.foobar;

public class foo {
	private String name;

	public foo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "foo [name=" + name + "]";
	}
	
}

bar

package com.spring.foobar;

public class bar {

	private String name;
	private int age;
	private foo foo;
	
	
	public bar(String name, int age, com.spring.foobar.foo foo) {
		super();
		this.name = name;
		this.age = age;
		this.foo = foo;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public foo getFoo() {
		return foo;
	}
	public void setFoo(foo foo) {
		this.foo = foo;
	}
	@Override
	public String toString() {
		return "bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}
		
}

driver

package com.spring.main;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.bar;
import com.spring.foobar.foo;

public class Driver {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		System.out.println("Our project runs");
		
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
		
		System.out.println(context.getBean("foo1",foo.class));
		System.out.println(context.getBean("bar1",bar.class));
		
		context.close();
	}

}

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo1" class="com.spring.foobar.foo">
      		<constructor-arg index="0" value="Gayatri"></constructor-arg >
      </bean>
      
      <bean id="bar1" class="com.spring.foobar.bar">
      		<constructor-arg index="0" value="Gayattri"></constructor-arg >
      		<constructor-arg index="1" value="22"></constructor-arg >
      		<constructor-arg index="2" value="foo"></constructor-arg >
      </bean>
      
      
      
</beans>

Screenshot

0 replies

uzma23 · 2022-07-20T09:25:21Z

uzma23
Jul 20, 2022

driver class

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;


public class discussion30 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
System.out.println("Our first Spring project runs!");
		
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
		
		System.out.println(context.getBean("foo", Foo.class));
		System.out.println(context.getBean("bar", Bar.class));
		
		context.close();

	}

}

Foo.class

package com.spring.foobar.beans;

public class Foo {
	private String name;

	public Foo() {
		super();
		// TODO Auto-generated constructor stub
	}

	public Foo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}
	

}

Bar.class

package com.spring.foobar.beans;

public class Bar {
	private String name;
	private int age;
	private Foo foo;
	public Bar() {
		super();
		// TODO Auto-generated constructor stub
	}
	public Bar(String name, int age, Foo foo) {
		super();
		this.name = name;
		this.age = age;
		this.foo = foo;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public Foo getFoo() {
		return foo;
	}
	public void setFoo(Foo foo) {
		this.foo = foo;
	}
	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}
	
	

}

0 replies

meghvi-raj · 2022-07-20T09:26:58Z

meghvi-raj
Jul 20, 2022

DRIVER CLASS

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;



public class FooBar {

	public static void main(String[] args) {
    AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");		

    System.out.println(context.getBean("foo", Foo.class));
	System.out.println(context.getBean("bar", Bar.class));
	
	context.close();
	
	}

}

FOO

package com.spring.foobar.beans;

public class Foo 
{
private String name;

public Foo() {
	super();
	// TODO Auto-generated constructor stub
}

public Foo(String name) {
	super();
	this.name = name;
}

public String getName() {
	return name;
}

public void setName(String name) {
	this.name = name;
}

@Override
public String toString() {
	return "Foo [name=" + name + "]";
}


}

BAR

package com.spring.foobar.beans;

public class Bar {
private String name;
private int age;
private Foo foo;

public Bar() {
	super();
	// TODO Auto-generated constructor stub
}

public Bar(String name, int age, Foo foo) {
	super();
	this.name = name;
	this.age = age;
	this.foo = foo;
}

public String getName() {
	return name;
}

public void setName(String name) {
	this.name = name;
}

public int getAge() {
	return age;
}

public void setAge(int age) {
	this.age = age;
}

public Foo getFoo() {
	return foo;
}

public void setFoo(Foo foo) {
	this.foo = foo;
}

@Override
public String toString() {
	return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
}




}

XML

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.foobar.beans.Foo">
      		<constructor-arg index="0" value="John"></constructor-arg >
      		
      </bean>
      
       <bean id="bar" class="com.spring.foobar.beans.Bar">
      		<constructor-arg index="0" value="John"></constructor-arg >
      		<constructor-arg index="1" value="50"></constructor-arg >
      		<constructor-arg index="2" ref="foo"></constructor-arg >
      </bean>
      
</beans>

##SS

0 replies

vshvandana · 2022-07-20T09:33:56Z

vshvandana
Jul 20, 2022

Foo class

package com.spring.foobar.beans;

public class foo {
	String name;

	public foo() {
		super();
			}

	public foo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "foo [name=" + name + "]";
	}
	

}

Bar class

package com.spring.foobar.beans;
 
public class bar {
	private String name;
	private int age;
	private foo foo;
	public bar() {
		super();
			}
	public bar(String name, int age, foo foo) {
		super();
		this.name = name;
		this.age = age;
		this.foo = foo;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public foo getFoo() {
		return foo;
	}
	public void setFoo(foo foo) {
		this.foo = foo;
	}
	@Override
	public String toString() {
		return "bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}
	
}

XML file

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.foobar.beans.foo">
      		<constructor-arg index="0" value="Riya"></constructor-arg >
      		
      </bean>
       <bean id="bar" class="com.spring.foobar.beans.bar">
      		<constructor-arg index="0" value="Riya"></constructor-arg >
      		<constructor-arg index="1" value="21"></constructor-arg >
      		<constructor-arg index="2" ref="foo"></constructor-arg >
      </bean>
      
</beans>

Driver Class

package com.spring.foobar;
import com.spring.foobar.beans.foo;
import com.spring.foobar.beans.bar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;


public class SpringFooBarApp {

	public static void main(String[] args) {
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
		System.out.println(context.getBean("foo", foo.class));
		System.out.println(context.getBean("bar", bar.class));
		context.close();

	}

}

Output

0 replies

ghost · 2022-07-20T09:41:36Z

ghost
Jul 20, 2022

Foo.class

package com.spring.foobar.beans;

public class Foo {

	public String name;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "foo [name=" + name + "]";
	}

	public foo(String name) {
		super();
		this.name = name;
	}

	public foo() {
		super();
		// TODO Auto-generated constructor stub
	}
	
}

Bar.class

package com.spring.foobar.beans;

public class Bar {
	private String name;
	private int age;
	public Foo foo;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public foo getFoo() {
		return foo;
	}
	public void setFoo(foo foo) {
		this.foo = foo;
	}
	@Override
	public String toString() {
		return "bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}
	public bar(String name, int age, com.spring.foobar.beans.foo foo) {
		super();
		this.name = name;
		this.age = age;
		this.foo = foo;
	}
	public bar() {
		super();
		// TODO Auto-generated constructor stub
	}
	

}

Driver Class

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.spring.foobar.beans.bar;
import com.spring.foobar.beans.foo;

public class FooBar {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		AbstractApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
		System.out.println(context.getBean("foo",foo.class));
		System.out.println(context.getBean("bar",bar.class));
		 context.close();
		
		

	}

}

XML

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.foobar.beans.foo">
      		<constructor-arg index="0" value="Person1"></constructor-arg >
      		
      </bean>
      <bean id="bar" class="com.spring.foobar.beans.bar">
      <constructor-arg index="0" value="Person1"></constructor-arg>
      <constructor-arg index="1" value="22"></constructor-arg>
      <constructor-arg index="2" ref="foo"></constructor-arg >
      
      </bean>
      
</beans>

0 replies

ghost · 2022-07-20T09:46:31Z

ghost
Jul 20, 2022

DRIVER CLASS

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;

public class d30 {

	public static void main(String[] args) {
    AbstractApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");		

    System.out.println(context.getBean("foo", Foo.class));
	System.out.println(context.getBean("bar", Bar.class));
	
	context.close();	
	}
}

XML File

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.foobar.beans.Foo">
      		<constructor-arg index="0" value="ABC"></constructor-arg >
      		
      </bean>
      
       <bean id="bar" class="com.spring.foobar.beans.Bar">
      		<constructor-arg index="0" value="ABC"></constructor-arg >
      		<constructor-arg index="1" value="24"></constructor-arg >
      		<constructor-arg index="2" ref="foo"></constructor-arg >
      </bean>
      
</beans>

Foo.java

package com.spring.foobar.beans;

public class Foo 
{
private String name;

public Foo() {
	super();
	// TODO Auto-generated constructor stub
}

public Foo(String name) {
	super();
	this.name = name;
}

public String getName() {
	return name;
}

public void setName(String name) {
	this.name = name;
}

@Override
public String toString() {
	return "Foo [name=" + name + "]";
}
}

Bar.java

package com.spring.foobar.beans;

public class Bar {
private String name;
private int age;
private Foo foo;

public Bar() {
	super();
	// TODO Auto-generated constructor stub
}

public Bar(String name, int age, Foo foo) {
	super();
	this.name = name;
	this.age = age;
	this.foo = foo;
}

public String getName() {
	return name;
}

public void setName(String name) {
	this.name = name;
}

public int getAge() {
	return age;
}

public void setAge(int age) {
	this.age = age;
}

public Foo getFoo() {
	return foo;
}

public void setFoo(Foo foo) {
	this.foo = foo;
}

@Override
public String toString() {
	return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
}

}

screenshot

0 replies

ApoorvaSinha · 2022-07-20T09:47:35Z

ApoorvaSinha
Jul 20, 2022

package com.spring.foobar.beans;

public class Foo {
	
	private String name;

	public Foo() {}

	public Foo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}	
}
package com.spring.foobar.beans;

public class Bar {
	private String name;
	private int age;
	private Foo foo;
	
	public Bar() {}

	public Bar(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public String getName() {
		return name;
	}
	
	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}

	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}	
}
package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;

public class FoobarApp {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
		
		System.out.println("Spring foobar app runs!");
		
		Foo f = (Foo)context.getBean("foo");
		System.out.println("Getting bean by ID: "+ f);
		
		
		Bar b = context.getBean("bar", Bar.class);
		System.out.println(b);
		
		System.out.println("Using getFoo(): "+b.getFoo());
		
		context.close();
	}

}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">

	<bean id="foo" class="com.spring.foobar.beans.Foo" scope="prototype">
		<constructor-arg index="0" value="Riya" />
	</bean>

	<bean id="bar" class="com.spring.foobar.beans.Bar">
		<constructor-arg type="int" value="26" />
		<constructor-arg type="java.lang.String" value="Aman" />
		<property name="foo" ref="foo"/>
	</bean>

</beans>

0 replies

Coder-093 · 2022-07-20T10:41:24Z

Coder-093
Jul 20, 2022

driver class

package com.spring.foobar;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.*;

public class Application {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println("foo bar project");
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
		
//		System.out.println(context.getBean("foo", Foo.class));
//		System.out.println(context.getBean("bar", Bar.class));
		
		Bar bar = context.getBean("bar", Bar.class);
		System.out.println(bar);
		System.out.println(bar.getFoo());
		
		Foo foo = (Foo) context.getBean("foo");
		System.out.println(foo);
		
		context.close();
	}

}

foo class

package com.spring.foobar.beans;

public class Foo {
	private String name;

	public Foo() {
		super();
		// TODO Auto-generated constructor stub
	}

	public Foo(String name) {
		super();
		this.name = name;
	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
}

bar class

package com.spring.foobar.beans;

public class Bar {
	private String name;
	private int age;
	private Foo foo;
	public Bar() {
		super();
		// TODO Auto-generated constructor stub
	}
	public Bar(String name, int age, Foo foo) {
		super();
		this.name = name;
		this.age = age;
		this.foo = foo;
	}
	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public Foo getFoo() {
		return foo;
	}
	public void setFoo(Foo foo) {
		this.foo = foo;
	}
	
}

xml file

<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
      <bean id="foo" class="com.spring.foobar.beans.Foo">
      		<constructor-arg index="0" value="jack"></constructor-arg >
      </bean>
      <bean id="bar" class="com.spring.foobar.beans.Bar">
      		<constructor-arg index="0" value="jill"></constructor-arg >
      		<constructor-arg index="1" value="17"></constructor-arg >
      		<constructor-arg index="2" ref="foo"></constructor-arg >
      </bean>
      
</beans>

Screenshot

0 replies

nikhilrode · 2022-11-05T17:02:30Z

nikhilrode
Nov 5, 2022

Beans

Bar.java

package com.spring.demo.beans;

public class Bar
{
	private String name;
	private  int age;
	private Foo foo;
	public Bar()
	{
		
	}
	public Bar(String name, int age) 
	{
		this.name = name;
		this.age = age;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public Foo getFoo() {
		return foo;
	}
	public void setFoo(Foo foo) {
		this.foo = foo;
	}
	@Override
	public String toString() {
		StringBuilder builder = new StringBuilder();
		builder.append("Bar [name=");
		builder.append(name);
		builder.append(", age=");
		builder.append(age);
		builder.append(", foo=");
		builder.append(foo);
		builder.append("]");
		return builder.toString();
	}
	
	public void print() 
	{
		System.out.println(new StringBuilder().append("\n Full Name:").append(this.name).append("\n Stage Name:").append(this.foo.getName()).append("\n Age:").append(this.age).append("\n"));
				
	}
	
	
}

Foo.java

package com.spring.demo.beans;

public class Foo 
{
  private String name= null;
  
  public Foo() 
  {
	  
  }

  public Foo(String name) 
  {
	this.name = name;
  }

public String getName() {
	return name;
}

public void setName(String name) {
	this.name = name;
}

@Override
public String toString() {
	return "Foo [name=" + name + "]";
}
 
  
}

SpringAppDemoDriver

package com.spring.demo;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.spring.demo.beans.Bar;
/**
 * @author Nikhil
 *
 */
public class SpringAppDemoDriver {

	/**
	 * @param args
	 */
	public static void main(String[] args) 
	{   
		AbstractApplicationContext context= new ClassPathXmlApplicationContext("application-context-config.xml");
		System.out.println("**********Spring App Demo version Started.**********");
		Bar bar =context.getBean("bar", Bar.class);
		bar.print();
		context.close();
		System.out.println("**********Spring App Demo version Ended.**********");
		
	}

}

#application-context-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="foo"  class="com.spring.demo.beans.Foo" scope="prototype">
    	<constructor-arg index="0" value="Nikzone"></constructor-arg>
    </bean>

    <bean id="bar" class="com.spring.demo.beans.Bar">
    	<constructor-arg type="java.lang.String" value="Nikhil Rode"></constructor-arg>
        <constructor-arg type="int" value="26"></constructor-arg>
        <property name="foo" ref="foo"></property>
    </bean>



</beans>

Screenshots

0 replies

AtharvChavan05 · 2022-11-05T20:25:21Z

AtharvChavan05
Nov 5, 2022

Beans

Foo.java

package com.spring;

public class Foo {
	private String name;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Foo(String name) {
		super();
		this.name = name;
	}

	public Foo() {
		
	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}
	
	
}

Bar.java

package com.spring;

public class Bar {
	private String name;
	private int age;
	private Foo foo;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}

	public Bar(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public Bar() {
		super();
	}

	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + "]";
	}
}

Driver

Driver.java

package com.spring;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Driver {
public static void main(String[] args) {
	AbstractApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
	System.out.println("Spring Application started...");
	
	Foo foo = (Foo) context.getBean("foo");
	System.out.println(foo);
	
	Bar bar = context.getBean("bar", Bar.class);
	System.out.println(bar);
	
	System.out.println("Spring Application ended...");
	context.close();
}
}

Application Context Configuration

beans.xml

<beans 	xmlns="http://www.springframework.org/schema/beans"
    	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    	xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd">
        
        <bean id="foo" class="com.spring.Foo">
      	<constructor-arg index="0" value="Atharv"></constructor-arg>
      	</bean>
      
      	<bean id="bar" class="com.spring.Bar">
      	<constructor-arg type="String" value="Chavan"></constructor-arg>
      	<constructor-arg type="int" value="50"></constructor-arg>
      	<property name="foo" ref="foo"></property>
      	</bean>
      	
</beans>

Screenshots

0 replies

kavink-r · 2022-11-10T08:58:24Z

kavink-r
Nov 10, 2022

Beans

Foo.java

package com.spring.foobar.beans;

public class Foo {
	private String name;

	public Foo() {
		
	}

	public Foo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "Foo [name=" + name + "]";
	}
	
}

Bar.java

package com.spring.foobar.beans;

public class Bar {

	private String name;
	private int age;
	private Foo foo;

	public Bar() {

	}

	public Bar(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Foo getFoo() {
		return foo;
	}

	public void setFoo(Foo foo) {
		this.foo = foo;
	}

	@Override
	public String toString() {
		return "Bar [name=" + name + ", age=" + age + ", foo=" + foo + "]";
	}
	
	

}

Driver Class

FoobarAppDriver.java

package com.spring.foobar;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.foobar.beans.Bar;
import com.spring.foobar.beans.Foo;
public class FoobarAppDriver {

	public static void main(String[] args) {
		
		//Instantiating the spring IOC container.
		AbstractApplicationContext context = new ClassPathXmlApplicationContext("applicationContextConfig.xml");
		System.out.println("My spring application has been started");
		
		//getting the bean named 'foo' created by spring container and printing the data members.
		Foo f = context.getBean("foo",Foo.class);
		System.out.println(f);
		
		//getting the bean named 'bar' created by spring container and printing the data members.
		Bar b = context.getBean("bar",Bar.class);
		System.out.println(b);

	}

}

Application Context Configuration

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">

	<bean id="foo" class="com.spring.foobar.beans.Foo">
		<constructor-arg index="0" value="Kavin"></constructor-arg>
	</bean>

	<bean id="bar" class="com.spring.foobar.beans.Bar">
		<constructor-arg type="String" value="Kumar"></constructor-arg>
		<constructor-arg type="int" value="101"></constructor-arg>
		<property name="foo" ref="foo"></property>
	</bean>


</beans>

Screenshots

0 replies

Task - Spring - FooBar App #30

Uh oh!

Uh oh!

akash-coded Apr 12, 2022 Maintainer

Replies: 32 comments · 2 replies

Uh oh!

Beans

Foo.java

Bar.java

Driver

Application Context Configuration

screenshot

Uh oh!

Uh oh!

Beans

Foo.java

Bar.java

Driver

Application Context Configuration

Screenshot

Uh oh!

Foo.java

Uh oh!

Bar.java

Uh oh!

Uh oh!

Driver

Uh oh!

Uh oh!

Application Context Config

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Beans

Foo Class

Bar Class

Driver

Application Context Configuration

Screenshot

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Foo

Bar

applicationContext.xml

Application.java

Uh oh!

Uh oh!

Bean

Foo Bean

Bar Bean

Driver class

Application Context XML

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Created a seprate package for the bar pojo class

Uh oh!

akash-coded
Apr 12, 2022
Maintainer

Replies: 32 comments 2 replies