博客

【例】spring注入List集合

创建User类

package com.shw;
public class User {
	private String username;
	private String password;
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
}

创建Manger类

package com.shw;
import java.util.List;
public class Manger {
	private List<User> userList;
	public List<User> getUserList() {
		return userList;
	}
	public void setUserList(List<User> userList) {
		this.userList = userList;
	}
}

配置applicationContext.xml

<bean id="user1" class="com.shw.User">
	<property name="username">
		<value>张三</value>
	</property>
	<property name="password">
		<value>123456</value>
	</property>
</bean>
<bean id="user2" class="com.shw.User">
	<property name="username">
		<value>李四</value>
	</property>
	<property name="password">
		<value>123123</value>
	</property>
</bean>
<bean id="manger" class="com.shw.Manger">
	<property name="userList">
		<list>
			<ref bean="user1"/>
			<ref bean="user2"/>
		</list>
	</property>
</bean>

创建测试类

public static void main(String[] args) {
		//加载applicationContext.xml
		ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
		//获取实例
		Manger manger=(Manger) context.getBean("manger");
		//调用方法
		List<User> list=manger.getUserList();
		for (User user : list) {
			System.out.println(user.getUsername()+","+user.getPassword());
		}
	}

运行结果：