IOC 操作 Bean 管理（xml 注入集合属性）

1、注入数组类型属性
2、注入 List 集合类型属性
3、注入 Map 集合类型属性
（1）创建类，定义数组、list、map、set 类型属性，生成对应 set 方法

package collection;

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

public class Stu {
    public void setCourses(String[] courses) {
        this.courses = courses;
    }

    private String[] courses;

    private List<String> list;

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

    public void setMaps(Map<String, String> maps) {
        this.maps = maps;
    }

    private Map<String,String> maps;

    public void setSets(Set<String> sets) {
        this.sets = sets;
    }

    private Set<String> sets;

    public void test(){
        System.out.println(Arrays.toString(courses));
        System.out.println(list);
        System.out.println(maps);
        System.out.println(sets);
    }

}

配置类的编写

<?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="stu" class="collection.Stu">
<!--          数据类型的注入-->
          <property name="courses">
              <array>
                  <value>java课程</value>
                  <value>数据结构</value>

              </array>
          </property>

          <property name="list">
              <list>
                  <value>张三</value>
                  <value>小三</value>
              </list>
          </property>

          <property name="maps">
              <map>
                  <entry key="Java" value="java"></entry>
                  <entry key="PHP" value="php"></entry>
              </map>
          </property>

          <property name="sets">
              <set>
                  <value>MySQL</value>
                  <value>Redis</value>
              </set>
          </property>
      </bean>
</beans>

测试类的编写，执行

 @Test
    public void test6(){
        ApplicationContext context=new ClassPathXmlApplicationContext("bean4.xml");
        Stu stu=context.getBean("stu",Stu.class);
        stu.test();
    }