1. spring-mvc-based-xml-and-java-configuration项目

基本的Spring MVC Maven项目，基于xml配置和基于Java配置。

• 访问http://localhost:8080/springmvc-based-xml-and-java-configuration/welcomePage
  • SimpleUrlHandlerMapping --> SimpleControllerDemo --> SimpleControllerHandlerAdapter
• 访问http://localhost:8080/springmvc-based-xml-and-java-configuration/welcomePage2
  • BeanNameUrlHandlerMapping --> HttpRequestControllerDemo --> HttpRequestHandlerAdapter
• 访问http://localhost:8080/springmvc-based-xml-and-java-configuration/welcomePage3
  • BeanNameUrlHandlerMapping --> SimpleServletController --> SimpleServletHandlerAdapter
• 访问http://localhost:8080/springmvc-based-xml-and-java-configuration/welcomePage4
  • RequestMappingHandlerMapping --> AnnotationController --> RequestMappingHandlerAdapter

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2. springmvc-mywebinitializer项目

Spring MVC项目使用编程的方式而非web.xml的方式作为web整合Spring MVC的入口。

• MyWebInitializerJava类注册DispatcherServlet
  • XmlWebApplicationContext --> #setConfigLocations()(XML BASED 配置)
  • AnnotationConfigWebApplicationContext --> #register()(Java BASED 配置)
• 访问：http://localhost:8080/springmvc-mywebinitializer

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3. springmvc-mybatis-lightweight项目

Spring MVC项目和Mybatis框架的简单整合。

• 访问：http://localhost:8080/springmvc-mybatis/mybatisDemo
  • 返回数据：{"id":"1","name":"hyxx"}

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4. spring-message-body-conversion项目

理解Spring HTTPMessageConverter项目

• 配置：MyWebConfig#configureContentNegotiation()
• 访问：http://localhost:8080/spring-message-body-conversion/resources/result
  • 返回数据：默认格式(xml)
• 访问：http://localhost:8080/spring-message-body-conversion/resources/result.xml
  • 返回数据：根据后缀判断，返回xml数据
• 访问：http://localhost:8080/spring-message-body-conversion/resources/result.json
  • 返回数据：根据后缀判断，返回json数据
• 自定义ReportConverter
  • 访问单元测试
  • 配置：MyWebConfig#extendMessageConverters()

POM文件中增加的HttpMessageConverter：

<dependency>
  <groupId>com.google.code.gson</groupId>
  <artifactId>gson</artifactId>
  <version>2.8.5</version>
</dependency>

<!-- Jackson for HttpMessageConverter -->
<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-annotations</artifactId>
  <version>2.4.6</version>
</dependency>
<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-core</artifactId>
  <version>2.4.6</version>
</dependency>
<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-databind</artifactId>
  <version>2.4.6</version>
</dependency>

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5. springmvc-freemarker-basic-demo项目

简单的Spring Freemarker项目

• 访问：http://localhost:8080/freemarker-basic-demo

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6. springmvc-multi-datasource-jdbctemplate项目

多数据源连接项目

• 配置：

<!-- 配置数据源ds1 ，dbcp -->
<bean id="dataSource1" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
  <property name="driverClassName" value="${jdbc.driver}"/>
  <property name="url" value="${ds1.jdbc.url}"/>
  <property name="username" value="${ds1.jdbc.username}" />
  <property name="password" value="${ds1.jdbc.password}" />
  <property name="maxActive" value="30" />
  <property name="maxIdle" value="5" />
</bean>

<!-- 配置数据源ds2 ，dbcp -->
<bean id="dataSource2" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
  <property name="driverClassName" value="${jdbc.driver}"/>
  <property name="url" value="${ds2.jdbc.url}"/>
  <property name="username" value="${ds2.jdbc.username}" />
  <property name="password" value="${ds2.jdbc.password}" />
  <property name="maxActive" value="30" />
  <property name="maxIdle" value="5" />
</bean>

<!-- 配置jdbctemplate -->
<bean id="jdbcTemplate-ds1" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource1"/>
</bean>

<!-- 配置jdbctemplate -->
<bean id="jdbcTemplate-ds2" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource2"/>
</bean>

• 注入：

@Autowired
@Qualifier("jdbcTemplate-ds1")
JdbcTemplate jdbcTemplateDs1;

@Autowired
@Qualifier("jdbcTemplate-ds2")
JdbcTemplate jdbcTemplateDs2;

• 访问：
  • http://localhost:8080/springmvc_multi_datasource_jdbctemplate_war_exploded/ds1
  • http://localhost:8080/springmvc_multi_datasource_jdbctemplate_war_exploded/ds2

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7. spring-source-code-learn项目

在debug框架的源代码的时候，最好能够让框架输出级别低的日志，这样有利于调试代码。

• 在spring4框架中使用sl4j日志(spring5使用新的sl4j2)

  • spring java项目

    • public class App {
          public static void main( String[] args ) {
              ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
              TestBean testBean = (TestBean) context.getBean("testBean");
              testBean.doSomething();
          }
      }

    • public class TestBean {
      
          private static final Logger logger = Logger.getLogger(TestBean.class);
      
          public void doSomething() {
              logger.debug("I am the testBean print log... DEBUG");
              logger.info("I am the testBean print log... INFO");
          }
      }

  • spring web项目

    • <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xmlns="http://java.sun.com/xml/ns/javaee"
               xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                                   http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
      
          <!-- Servlet Context Name -->
          <display-name>spring-source-code-learn</display-name>
      
          <welcome-file-list>
              <welcome-file>login.jsp</welcome-file>
              <welcome-file>login.html</welcome-file>
          </welcome-file-list>
      
          <context-param>
              <param-name>contextConfigLocation</param-name>
              <param-value>classpath:beans.xml</param-value>
          </context-param>
      
          <listener>
              <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
          </listener>
      
          <context-param>
              <param-name>log4jConfigLocation</param-name>
              <param-value>classpath:log4j.properties</param-value>
          </context-param>
      
          <listener>
              <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
          </listener>
      
      </web-app>

  • bean配置

    • <?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
         http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">
      
          <bean id="testBean" class="com.fmz.service.TestBean" />
      </beans>

  • sl4j日志配置

    • # Global logging configuration
      log4j.rootLogger=DEBUG, stdout
      #log4j.logger.org.springframework=INFO
      #log4j.logger.com.fmz=ERROR
      # Console output...
      log4j.appender.stdout=org.apache.log4j.ConsoleAppender
      log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
      log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

spring Java项目直接Java启动，web项目使用Tomcat启动

spring版本选定5以下（不包括5），spring5支持新的升级版的sl4j2

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