（1）创建类，定义数组，list，map，set类型属性，并且生成对应的set方法。
（2）在spring配置文件中进行配置。
Stu类：
package com.Keafmd.spring5.collectiontype;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Keafmd
*
* @ClassName: Stu
* @Description: IOC操作Bean管理（xml注入属性集合）
* @author: 牛哄哄的柯南
* @date: 2021-01-15 14:15
*/
public class Stu {
//1、数组类型属性
private String[] courses;
//2、list集合类型属性
private List<String> list;
//3、map集合类型属性
private Map<String,String> maps;
//4、set集合类型属性
private Set<String> sets;
//学生所学的多门课程
private List<Course> courseList;
public void setCourseList(List<Course> courseList) {
this.courseList = courseList;
}
public void setCourses(String[] courses) {
this.courses = courses;
}
public void setList(List<String> list) {
this.list = list;
}
public void setMaps(Map<String, String> maps) {
this.maps = maps;
}
public void setSets(Set<String> sets) {
this.sets = sets;
}
public void test(){
System.out.println(Arrays.toString(courses));
System.out.println(list);
System.out.println(maps);
System.out.println(sets);
System.out.println(courseList);
}
}
bean1.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!--集合类型属性注入-->
<bean id="stu" class="com.Keafmd.spring5.collectiontype.Stu">
<!--数组类型属性注入-->
<property name="courses">
<array>
<value>Java</value>
<value>C++</value>
<value>Python</value>
</array>
</property>
<!--list类型属性注入-->
<property name="list">
<list>
<value>小明</value>
<value>小红</value>
</list>
</property>
<!--map类型属性注入-->
<property name="maps">
<map>
<entry key="Java" value="java"></entry>
<entry key="C++" value="c++"></entry>
</map>
</property>
<!--set类型属性注入-->
<property name="sets">
<set>
<value>北京</value>
<value>上海</value>
</set>
</property>
<!--注入list集合类型，值是对象-->
<property name="courseList">
<list>
<ref bean="course1"></ref>
<ref bean="course2"></ref>
</list>
</property>
</bean>
<!--创建多个course对象-->
<bean id="course1" class="com.Keafmd.spring5.collectiontype.Course">
<property name="cname" value="Spring5框架"></property>
</bean>
<bean id="course2" class="com.Keafmd.spring5.collectiontype.Course">
<property name="cname" value="MyBatis框架"></property>
</bean>
</beans>
测试类：
package com.Keafmd.spring5.testdemo;
import com.Keafmd.spring5.bean.Orders;
import com.Keafmd.spring5.collectiontype.Book;
import com.Keafmd.spring5.collectiontype.Course;
import com.Keafmd.spring5.collectiontype.Stu;
import com.Keafmd.spring5.factorybean.MyBean;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
* Keafmd
*
* @ClassName: TestSpring5demo1
* @Description: 测试类
* @author: 牛哄哄的柯南
* @date: 2021-01-15 14:30
*/
public class TestSpring5demo1 {
@Test
public void testCollection1(){
ApplicationContext context = new ClassPathXmlApplicationContext("bean1.xml");
Stu stu = context.getBean("stu",Stu.class);
stu.test();
}
}
输出结果：
[Java, C++, Python]
[小明, 小红]
{Java=java, C++=c++}
[北京, 上海]
[Course{cname='Spring5框架'}, Course{cname='MyBatis框架'}]Process finished with exit code 0
（1）在spring配置文件中引入名称空间util（
在配置信息中添加xmlns:util="http://www.springframework.org/schema/util"和http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"）。
（2）提取list集合类型属性注入。
（3）把提取的list集合类型属性注入使用。
Book类：
package com.Keafmd.spring5.collectiontype;
import java.util.List;
/**
* Keafmd
*
* @ClassName: Book
* @Description:
* @author: 牛哄哄的柯南
* @date: 2021-01-15 14:56
*/
public class Book {
private List<String> list;
public void setList(List<String> list) {
this.list = list;
}
public void test(){
System.out.println(list);
}
}
bean2.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:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<!--把集合注入部分提取出来-->
<!--1、提取list集合类型属性注入-->
<util:list id="bookList">
<value>老人与海</value>
<value>平凡的世界</value>
<value>阿甘正传</value>
</util:list>
<!--2、提取list集合类型属性注入使用-->
<bean id="book" class="com.Keafmd.spring5.collectiontype.Book">
<property name="list" ref="bookList"></property>
</bean>
</beans>
测试代码：
package com.Keafmd.spring5.testdemo;
import com.Keafmd.spring5.bean.Orders;
import com.Keafmd.spring5.collectiontype.Book;
import com.Keafmd.spring5.collectiontype.Course;
import com.Keafmd.spring5.collectiontype.Stu;
import com.Keafmd.spring5.factorybean.MyBean;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
* Keafmd
*
* @ClassName: TestSpring5demo1
* @Description: 测试类
* @author: 牛哄哄的柯南
* @date: 2021-01-15 14:30
*/
public class TestSpring5demo1 {
@Test
public void testCollection2(){
ApplicationContext context = new ClassPathXmlApplicationContext("bean2.xml");
Book book = context.getBean("book",Book.class);
book.test();
}
}
输出结果：
[老人与海, 平凡的世界, 阿甘正传]
Process finished with exit code 0
