spring6 为集合类型属性赋值 --引用集合类型的bean

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1.准备工作：

Student.java

package bean.dimap;import java.util.List;
import java.util.Map;public class Student {private String sid;private String sname;
//private Map<String,Teacher> map;//private List<Lesson> lessonList;public List<Lesson> getLessonList() {return lessonList;}public void setLessonList(List<Lesson> lessonList) {this.lessonList = lessonList;}public void run(){System.out.println("学生名："+sname+" 学生id："+sid);System.out.println(map);System.out.println(lessonList);}public String getSid() {return sid;}public void setSid(String sid) {this.sid = sid;}public String getSname() {return sname;}public void setSname(String sname) {this.sname = sname;}public Map<String, Teacher> getMap() {return map;}public void setMap(Map<String, Teacher> map) {this.map = map;}@Overridepublic String toString() {return "Student{" +"sid='" + sid + '\'' +", sname='" + sname + '\'' +", map=" + map +", lessonList=" + lessonList +'}';}
}

Teacher.java

package bean.dimap;public class Teacher {private String tId;private String tName;@Overridepublic String toString() {return "Teacher{" +"tId='" + tId + '\'' +", tName='" + tName + '\'' +'}';}public String gettId() {return tId;}public void settId(String tId) {this.tId = tId;}public String gettName() {return tName;}public void settName(String tName) {this.tName = tName;}
}

2.xml配置：

beans-diRef.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/utilhttp://www.springframework.org/schema/util/spring-util.xsdhttp://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd"><!-- ref属性：引用IOC容器中某个bean的id，将所对应的bean为属性赋值 --><bean id="student" class="bean.dimap.Student"><property name="sname" value="hhh"></property><property name="sid" value="01"></property><property name="lessonList" ref="list"></property><property name="map" ref="map"></property></bean><!--list集合类型的bean--><util:list id="list"><ref bean="lessonone"></ref><ref bean="lessontwo"></ref></util:list><!--map集合类型的bean--><util:map id="map"><entry><key><value>001</value></key><ref bean="teacherone"></ref></entry><entry><key><value>002</value></key><ref bean="teachertwo"></ref></entry></util:map><bean id="lessonone" class="bean.dimap.Lesson"><property name="lessonName" value="java课"></property></bean><bean id="lessontwo" class="bean.dimap.Lesson"><property name="lessonName" value="c++课"></property></bean><bean id="teacherone" class="bean.dimap.Teacher"><property name="tName" value="张老师"></property><property name="tId" value="001"></property></bean><bean id="teachertwo" class="bean.dimap.Teacher"><property name="tName" value="李老师"></property><property name="tId" value="002"></property></bean></beans>

3.前置知识：使用util:list、util:map标签必须引入相应的命名空间

<?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/utilhttp://www.springframework.org/schema/util/spring-util.xsdhttp://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd">
</beans>