bean的作用域

RoWe98 · RoWe98 · commit f0c340003ca5 · 2019-06-05T22:00:58.000+08:00
diff --git a/SpringLearn_No_Web/SpringLearn_No_Web.iml b/SpringLearn_No_Web/SpringLearn_No_Web.iml
@@ -6,6 +6,7 @@
         <fileset id="fileset" name="Spring Application Context" removed="false">
           <file>file://$MODULE_DIR$/src/beans.xml</file>
           <file>file://$MODULE_DIR$/src/beans3.xml</file>
+          <file>file://$MODULE_DIR$/src/beans4.xml</file>
         </fileset>
       </configuration>
     </facet>
diff --git a/SpringLearn_No_Web/src/beans4.xml b/SpringLearn_No_Web/src/beans4.xml
@@ -0,0 +1,17 @@
+<?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.xsd">
+
+
+    <!--Bean&#30340;&#20316;&#29992;&#22495;
+
+        singleton: &#21333;&#20363; &#65292;&#40664;&#35748;&#20026;&#21333;&#20363;
+
+        prototype: &#22810;&#20363;
+    -->
+
+    <bean id="userService" class="edu.xpu.service.UserServiceImpl" scope="prototype"></bean>
+
+</beans>
diff --git a/SpringLearn_No_Web/src/edu/xpu/test/Lesson04.java b/SpringLearn_No_Web/src/edu/xpu/test/Lesson04.java
@@ -0,0 +1,42 @@
+
+package edu.xpu.test;
+
+import edu.xpu.service.IUserService;
+import edu.xpu.service.UserServiceFactory1;
+import edu.xpu.service.UserServiceFactory2;
+import org.springframework.beans.factory.BeanFactory;
+import org.springframework.beans.factory.xml.XmlBeanFactory;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import org.springframework.core.io.FileSystemResource;
+
+public class Lesson04 {
+
+    public static void test1(){
+
+
+
+        ApplicationContext context = new ClassPathXmlApplicationContext("beans4.xml");
+
+
+        // &#20174;&#23481;&#22120;&#33719;&#21462;&#20004;&#20010;Bean
+
+        // singaton &#21333;&#20363; &#23545;&#35937;&#22320;&#22336;&#19968;&#26679;&#35828;&#26126;&#20026;&#21516;&#19968;&#20010;&#23545;&#35937;
+
+        // prototype &#22810;&#20363; &#20026;&#19981;&#21516;&#30340;&#23545;&#35937;
+        IUserService userService1 = (IUserService)context.getBean("userService");
+
+        IUserService userService2  = (IUserService)context.getBean("userService");
+
+        System.out.println(userService1);
+
+        System.out.println(userService2);
+
+    }
+
+    public static void main(String[] args) {
+
+        Lesson04.test1();
+
+    }
+}
