Spring 集合注入

项目目录结构:

CollectionIoc集合类：

package com.mth.collection;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

/*
 * 
 * 集合注入
 * */
public class CollectionIoc {
	private List<String> arrayList = new ArrayList<String>();
	private Set<String> arraySet = new HashSet<String>();
	private Map<String, String> arrayMap = new HashMap<String, String>();

	public Map<String, String> getArrayMap() {
		return arrayMap;
	}

	public void setArrayMap(Map<String, String> arrayMap) {
		this.arrayMap = arrayMap;
	}

	public Set<String> getArraySet() {
		return arraySet;
	}

	public void setArraySet(Set<String> arraySet) {
		this.arraySet = arraySet;
	}

	public List<String> getArrayList() {
		return arrayList;
	}

	public void setArrayList(List<String> arrayList) {
		this.arrayList = arrayList;
	}

}

IStuDaoImpl类：

package com.mth.impl;

import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import com.mth.bean.Student;
import com.mth.collection.CollectionIoc;
import com.mth.dao.IStuDao;

public class IStuDaoImpl implements IStuDao {
	private CollectionIoc c;

	public CollectionIoc getC() {
		return c;
	}

	public void setC(CollectionIoc c) {
		this.c = c;
	}

	@Override
	public void save(Student stu) {
		System.out.println("保存学生");
		testCollection();
	}

	/**
	 * 测试集合是否注入成功！
	 */
	public void testCollection() {

		List<String> arrayList = c.getArrayList();
		Set<String> arraySet = c.getArraySet();
		Map<String, String> arrayMap = c.getArrayMap();
		// 分别遍历 list set map 集合
		System.out.println("------------------------------");
		System.out.println("List集合注入");
		Iterator<String> itList = arrayList.iterator();
		while (itList.hasNext()) {
			System.out.println(itList.next());
		}
		System.out.println("------------------------------");
		System.out.println("set集合注入");
		Iterator<String> itSet = arraySet.iterator();
		while (itSet.hasNext()) {
			System.out.println(itSet.next());
		}
		System.out.println("------------------------------");
		System.out.println("map集合注入");
		Set<String> s = arrayMap.keySet();
		Iterator<String> itMap = s.iterator();
		while (itMap.hasNext()) {
			String key=itMap.next();
			System.out.println(arrayMap.get(key));
		}
	}

}

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:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">


	<bean name="stuDao" class="com.mth.impl.IStuDaoImpl">
		<!--注入一个集合对象		-->
		<property name="c" ref="collection"></property>
	</bean>

	<bean id="ser" class="com.mth.service.Service">
		<property name="dao" ref="stuDao"></property>
	</bean>


	<!--集合注入配置	-->
	<bean id="collection" class="com.mth.collection.CollectionIoc">
		<!-- list-->
		<property name="arrayList">
			<list>
				<value>list1</value>
				<value>list2</value>
				<value>list3</value>
			</list>
		</property>
		<!-- map-->
		<property name="arrayMap">
			<map>
				<entry key="map1" value="map1"></entry>
				<entry key="map2" value="map2"></entry>
				<entry key="map3" value="map3"></entry>
			</map>
		</property>
		<!-- set-->
		<property name="arraySet">
			<set>
				<value>set1</value>
				<value>set2</value>
				<value>set3</value>
			</set>
		</property>
	</bean>

</beans>

测试结果：