change bean from singleton to prototype by postProcessBeanFactory test

zhongliangjun1 · Nov 5, 2014 · f693c12 · f693c12
1 parent 61ec183
commit f693c12
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Showing 5 changed files with 76 additions and 2 deletions.
diff --git a/src/main/java/com/dianping/start/MyBeanFactoryPostProcessor.java b/src/main/java/com/dianping/start/MyBeanFactoryPostProcessor.java
@@ -29,6 +29,27 @@ public void postProcessBeanFactory(ConfigurableListableBeanFactory configurableL
             propertyValue.setConvertedValue("guess ni mei");
             System.out.println("modify myBean sex");
         }
+
+        String[] beanDefinitionNames = configurableListableBeanFactory.getBeanDefinitionNames();
+        if (beanDefinitionNames!=null && beanDefinitionNames.length>0) {
+            for (String beanDefinitionName : beanDefinitionNames) {
+                BeanDefinition beanDefinition = configurableListableBeanFactory.getBeanDefinition(beanDefinitionName);
+                if ( beanDefinition.isSingleton() ) {
+                    if ( beanDefinitionName.equals("singletonBeanUpdateTest") ) {
+                        String beanClassName = beanDefinition.getBeanClassName();
+                        try {
+                            Class c = Class.forName(beanClassName);
+                            if ( SingletonBeanUpdateTest.class.isAssignableFrom(c) ) {
+                                beanDefinition.setScope("prototype");
+                            }
+                        } catch (ClassNotFoundException e) {
+                            throw new RuntimeException(e);
+                        }
+                    }
+                }
+            }
+        }
+
         System.out.println("postProcessBeanFactory---------end");
     }
 

diff --git a/src/main/java/com/dianping/start/SingletonBeanUpdateTest.java b/src/main/java/com/dianping/start/SingletonBeanUpdateTest.java
@@ -0,0 +1,14 @@
+package com.dianping.start;
+
+/**
+ * Created with IntelliJ IDEA.
+ * Author: liangjun.zhong
+ * Date: 14-11-5
+ * Time: PM2:49
+ * To change this template use File | Settings | File Templates.
+ */
+public interface SingletonBeanUpdateTest {
+
+    public void test();
+
+}
diff --git a/src/main/java/com/dianping/start/SingletonBeanUpdateTestImpl.java b/src/main/java/com/dianping/start/SingletonBeanUpdateTestImpl.java
@@ -0,0 +1,19 @@
+package com.dianping.start;
+
+/**
+ * Created with IntelliJ IDEA.
+ * Author: liangjun.zhong
+ * Date: 14-11-5
+ * Time: PM2:49
+ * To change this template use File | Settings | File Templates.
+ */
+public class SingletonBeanUpdateTestImpl implements SingletonBeanUpdateTest {
+
+    private int count = 0;
+
+    @Override
+    public void test() {
+        count = count + 1;
+        System.out.println("now count is "+count);
+    }
+}
diff --git a/src/main/java/com/dianping/struts/ActionOfSpringBean.java b/src/main/java/com/dianping/struts/ActionOfSpringBean.java
@@ -1,6 +1,10 @@
 package com.dianping.struts;
 
 import com.dianping.aop.UserService;
+import com.dianping.start.SingletonBeanUpdateTest;
+import org.springframework.beans.BeansException;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
 
 /**
  * Created with IntelliJ IDEA.
@@ -9,17 +13,31 @@
  * Time: AM1:12
  * To change this template use File | Settings | File Templates.
  */
-public class ActionOfSpringBean {
+public class ActionOfSpringBean implements ApplicationContextAware {
 
     private UserService userService;
 
+    private ApplicationContext applicationContext;
+    //private SingletonBeanUpdateTest singletonBeanUpdateTest;
+
 
     public String execute(){
         userService.addTopic(11, "ActionOfSpringBean");
+        SingletonBeanUpdateTest singletonBeanUpdateTest = (SingletonBeanUpdateTest) applicationContext.getBean("singletonBeanUpdateTest");
+        singletonBeanUpdateTest.test();
         return "success";
     }
 
     public void setUserService(UserService userService) {
         this.userService = userService;
     }
+
+//    public void setSingletonBeanUpdateTest(SingletonBeanUpdateTest singletonBeanUpdateTest) {
+//        this.singletonBeanUpdateTest = singletonBeanUpdateTest;
+//    }
+
+    @Override
+    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+        this.applicationContext = applicationContext;
+    }
 }
diff --git a/src/main/resources/config/spring/appcontext-core.xml b/src/main/resources/config/spring/appcontext-core.xml
@@ -27,8 +27,9 @@
 
     <bean id="myBankSavings" class="com.dianping.start.ChildBeanFactory" factory-method="getBankSavings" lazy-init="true" />
 
-    <bean id="myBeanFactoryPostProcessor" class="com.dianping.start.MyBeanFactoryPostProcessor" />
+    <bean id="singletonBeanUpdateTest" class="com.dianping.start.SingletonBeanUpdateTestImpl" scope="singleton" />
 
+    <bean id="myBeanFactoryPostProcessor" class="com.dianping.start.MyBeanFactoryPostProcessor" />
 
 
 
@@ -80,6 +81,7 @@
     <bean id="userService" class="com.dianping.aop.UserServiceImpl" />
     <bean id="actionOfSpringBean" class="com.dianping.struts.ActionOfSpringBean" >
         <property name="userService" ref="userService"/>
+        <!--<property name="singletonBeanUpdateTest" ref="singletonBeanUpdateTest"/>-->
     </bean>