Spring入门_04_注解注入

applicationContext.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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    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/tx
      http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd
      http://www.springframework.org/schema/aop
      http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
        <!--打开注解开关-->
    <context:annotation-config/>

    <bean id="userAction" class="com.umgsai.spring.UserAction" scope="singleton"/>

    <bean id="userManager" class="com.umgsai.spring.UserManager" scope="prototype">
        <property name="username" value="root">
        </property>
        <property name="password" value="123456">
        </property>
        <property name="url" value="jdbc:mysql://localhost:8080/3305">
        </property>
        <property name="driverClass" value="jdbc.mysql.Driver">
        </property>
    </bean>

</beans>

package com.umgsai.spring;
import javax.annotation.Resource;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
public class UserAction implements BeanFactoryAware{
    @Resource//省略set方法
    private UserManager userManager = null;
    public UserAction(UserManager userManager){
        super();
        this.userManager = userManager;
    }

    public UserAction(){
        super();
    }

    public String execute() {
        User user = new User();
        //userManager = (UserManager)factory.getBean("manager");
        userManager.add(user);
        System.out.println("userManager:"+userManager);

        return "success";
    }
    private BeanFactory factory = null;
    public void setBeanFactory(BeanFactory factory) throws BeansException {
        this.factory = factory;
    }
}

测试

BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml");
UserAction userAction = (UserAction)factory.getBean("userAction");
System.out.println(userAction.execute());

执行结果

root

123456

jdbc.mysql.Driver

jdbc:mysql://localhost:8080/3305

添加User操作

userManager:com.umgsai.spring.UserManager@177ba38f

success

本文出自 “阿凡达” 博客，请务必保留此出处http://shamrock.blog.51cto.com/2079212/1256242