学习了依赖注入

RoWe98 · RoWe98 · commit 3a04a58b04fc · 2019-06-01T23:24:39.000+08:00
diff --git a/SpringLearn_No_Web/src/beans.xml b/SpringLearn_No_Web/src/beans.xml
@@ -5,5 +5,11 @@
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
 
     <!-- bean definitions here -->
-    <bean id = "userService" class = "edu.xpu.service.UserServiceImpl"></bean>
+    <bean id = "userService" class = "edu.xpu.service.UserServiceImpl">
+
+        <!--依赖注入数据,调用属性的set方法-->
+        <property name="name" value="zhangsan"></property>
+        <!--相当于UserService service = new UserServiceImpl();service.setName("");-->
+
+    </bean>
 </beans>
diff --git a/SpringLearn_No_Web/src/edu/xpu/service/UserServiceImpl.java b/SpringLearn_No_Web/src/edu/xpu/service/UserServiceImpl.java
@@ -1,8 +1,19 @@
 package edu.xpu.service;
 
 public class UserServiceImpl implements IUserService {
+
+    private String name;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
     @Override
     public void add() {
-        System.out.println("添加用户...");
+        System.out.println("添加用户..."+name);
     }
 }
diff --git a/SpringLearn_No_Web/src/edu/xpu/test/Lesson02.java b/SpringLearn_No_Web/src/edu/xpu/test/Lesson02.java
@@ -17,7 +17,7 @@ public static void test1(){
         // 用userService 从spring的容器中获取对象
         ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
         IUserService userService1 = (IUserService)context.getBean("userService");
-        IUserService userService2 = (IUserService)context.getBean("userService");
+
         userService1.add();
 
         System.out.println(userService1);
