Spring的集合注入(XML方式)

首先创建一个CollectionBean.java文件,里面分别创建Array数组和List、Set、Map集合

public class CollectionBean {
    private String[] arrs;
    private List<String> list;
    private Set<String> set;
    private Map<String,String> map;

    public void setArrs(String[] arrs) {
        this.arrs = arrs;
    }

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

    public void setSet(Set<String> set) {
        this.set = set;
    }

    public void setMap(Map<String, String> map) {
        this.map = map;
    }

    @Override
    public String toString() {
        return "CollectionBean [arrs=" + Arrays.toString(arrs) + ", list=" + list + ", set=" + set + ", map=" + map
                + "]";
    }

    
}

然后创建applicationContext.xml文件，

<bean id="collectionBean" class="com.spring.demo5.CollectionBean">
        <!-- 数组类型 -->
        <property name="arrs">
            <list>
                <value>王东</value>
                <value>赵洪</value>
                <value>李冠希</value>
            </list>
        </property>
        
        <!-- 注入list集合 -->
        <property name="list">
            <list>
                <value>李兵</value>
                <value>赵如何</value>
                <value>邓凤</value>
            </list>
        </property>
        
        <!-- 注入set集合 -->
        <property name="set">
            <set>
                <value>aaa</value>
                <value>bbb</value>
                <value>ccc</value>
            </set>
        </property>
        
        <!-- 注入Map集合 -->
        <property name="map">
        
            <map>
                <entry key="aaa" value="111"/>
                <entry key="bbb" value="222"/>
                <entry key="ccc" value="333"/>
            </map>
        </property>
    </bean>

 

最后用一个测试方式来进行测试

@Test
    public void demo1() {
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        
        CollectionBean collectionBean = (CollectionBean) applicationContext.getBean("collectionBean");
        System.out.println(collectionBean);
    }