spring-注入集合对象

1.创建Stu类

package com.spring.collections;

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

public class Stu {
    //1.数组类型
    private String[] courses;

    //2.list集合属性
    private List<String> list;

    //3.map集合类型
    private Map<String,String> map;

    //4.set集合属性类型
    private Set<String> set;

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

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

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

    public void setCourses(String[] courses) {
        this.courses = courses;
    }
    public void test(){
        System.out.println(Arrays.toString(courses));
        System.out.println(list);
        System.out.println(map);
        System.out.println(set);
    }
}

2.bean1.xml的注入配置

<?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 name="stu" class="com.spring.collections.Stu">
        <!--数组类型的注入-->
        <property name="courses">
            <array>  <!--array表示数组注入形式-->
                <value>Struts框架</value>
                <value>Spring框架</value>
            </array>
        </property>
        <!--list类型的注入-->
        <property name="list">
            <list>
                <value>mybatis框架</value>
                <value>Spring MVC</value>
            </list>
        </property>
        <!--map类型的注入-->
        <property name="map">
            <map>
                <entry key="JAVA" value="java"></entry>
                <entry key="SSM" value="ssm"></entry>
            </map>
        </property>
        <!--set类型注入-->
        <property name="set">
            <set>
                <value>kevin</value>
                <value>Ron</value>
            </set>
        </property>
    </bean>
</beans>

3.创建测试类进行测试

package com.spring.test;

import com.spring.collections.Stu;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestSpringDemo1 {
    @Test
    public void testCollection(){
        //加载bean1.xml文件
        ApplicationContext applicationContext=new ClassPathXmlApplicationContext("bean1.xml");
        //获取配置对象
        Stu stu = applicationContext.getBean("stu", Stu.class);
        stu.test();//调用方法
    }
}