四、各种集合的依赖注入方式-Spring快速入门小白编

五种集合
1.list;
2.array;
3.set;
4.map;
5.props;

新建了Colection.java实体类
Collection.java

package com.bb.entity;

import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

public class Collection {
    private List<String> list;
    private String[] array;
    private Set<String> set;
    private Map<String,String> map;
    private Properties props;

    public Collection() {
    }

    public Collection(List<String> list, String[] array, Set<String> set, Map<String, String> map, Properties props) {
        this.list = list;
        this.array = array;
        this.set = set;
        this.map = map;
        this.props = props;
    }

    public List<String> getList() {
        return list;
    }

    public void setList(List<String> list) {
        this.list = list;
    }

    public String[] getArray() {
        return array;
    }

    public void setArray(String[] array) {
        this.array = array;
    }

    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;
    }

    public Properties getProps() {
        return props;
    }

    public void setProps(Properties props) {
        this.props = props;
    }
}

applicationContext.xml

<!--    各种集合的依赖注入，使用<property>标签-->
    <bean id="collection" class="com.bb.entity.Collection">
        <property name="list" >
            <list>
                <value>Dota-list</value>
                <value>Wow-list</value>
                <value>Lol-list</value>
            </list>
        </property>
        <property name="array">
            <array>
                <value>dota-array</value>
                <value>wow-array</value>
                <value>lol-array</value>
            </array>
        </property>
        <property name="set">
            <set>
                <value>dota-set</value>
                <value>wow-set</value>
                <value>lol-set</value>
            </set>
        </property>
        <property name="map">
            <map>
                <entry key="1" value="dota-map"></entry>
                <entry key="2" value="wow-map"></entry>
                <entry key="3" value="lol-map"></entry>
            </map>
        </property>
        <property name="props">
            <props>
                <prop key="1">dota-props</prop>
                <prop key="2">wow-props</prop>
                <prop key="3">lol-props</prop>
            </props>
        </property>
    </bean>

TestSpring.java

  //各种集合的依赖注入
    public static void collection(){
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
        Collection collection = (Collection)context.getBean("collection");
        System.out.println("list:"+collection.getList());
        System.out.println("array:"+collection.getArray());
        System.out.println("set:"+collection.getSet());
        System.out.println("map:"+collection.getMap());
        System.out.println("props:"+collection.getProps());
    }

结果输出：

list:[Dota-list, Wow-list, Lol-list]
array:[Ljava.lang.String;@3e57cd70
set:[dota-set, wow-set, lol-set]
map:{1=dota-map, 2=wow-map, 3=lol-map}
props:{3=lol-props, 2=wow-props, 1=dota-props}