Spring集合注入

Z时代
2024-01-10
分类：综合

本文内容纲要：Spring集合注入

UserDaoImpl.java

package com.zhangpn.daoImpl;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.zhangpn.dao.UserDao;
public class UserDaoImpl implements UserDao{
	private List<String> list;
	private Set<String> set;
	private Map<String,String> map;
	public List<String> getList() {
		return list;
	}
	public void setList(List<String> list) {
		this.list = list;
	}
	public Set<String> getSet() {
		return set;
	}
	public void setSet(Set<String> set) {
		this.set = set;
	}
	public Map<String, String> getMap() {
		return map;
	}
	public void setMap(Map<String, String> map) {
		this.map = map;
	}
}

　　beans.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"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans.xsd">
	<bean id="UserDaoImpl" class="com.zhangpn.daoImpl.UserDaoImpl" scope="singleton">
		<property name="list">
			<list>
				<value>list1</value>
				<value>list2</value>
				<value>list3</value>
			</list>
		</property>
		<property name="set">
			<set>
				<value>set1</value>
				<value>set2</value>
				<value>set3</value>
			</set>
		</property>
		<property name="map">
			<map>
				<entry key="map1" value="map1"></entry>
				<entry key="map2" value="map2"></entry>
				<entry key="map3" value="map3"></entry>
			</map>
		</property>
	</bean>
</beans>

　　Test.java：

package com.zhangpn.Test;
import java.util.Map.Entry;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.zhangpn.daoImpl.UserDaoImpl;
public class Test {
	public static void main(String[] args) {
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("beans.xml");
		UserDaoImpl userDaoImpl = (UserDaoImpl)applicationContext.getBean("UserDaoImpl");
		for(String s:userDaoImpl.getList()) {
			System.out.println(s);
		}
		for(String s:userDaoImpl.getSet()) {
			System.out.println(s);
		}
		for(Entry s:userDaoImpl.getMap().entrySet()) {
			System.out.println(s.getValue());
			System.out.println(s.getKey());
		}
	}
}