spring学习36-注入set类型

简介: spring学习36-注入set类型
pom.xml
    <?xml version="1.0" encoding="UTF-8"?>
     <project xmlns="http://maven.apache.org/POM/4.0.0"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
         <modelVersion>4.0.0</modelVersion>
         <groupId>com.geyao</groupId>
         <artifactId>spring01geyao</artifactId>
         <version>1.0-SNAPSHOT</version>
         <dependencies>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-context</artifactId>
                 <version>4.3.13.RELEASE</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-test</artifactId>
                 <version>3.2.0.RELEASE</version>
             </dependency>
             <dependency>
                 <groupId>log4j</groupId>
                 <artifactId>log4j</artifactId>
                 <version>1.2.17</version>
             </dependency>
             <dependency>
                 <groupId>junit</groupId>
                 <artifactId>junit</artifactId>
                 <version>4.12</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-test</artifactId>
                 <version>4.3.4.RELEASE</version>
                 <scope>test</scope>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-test</artifactId>
                 <version>4.3.4.RELEASE</version>
                 <scope>test</scope>
             </dependency>
         </dependencies>
     </project>applictioncontext.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:c="http://www.springframework.org/schema/c"
            xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
         <!--
         bean元素:描述当前的对象需要由spring容器管理
         id属性:标识对象 未来在应用程序中可以根据id获取对象
         class对象:被管理的对象的全名
        -->
         <bean id="music1" class="com.geyao.demo.soundSystem.Music">
             <constructor-arg value="i do 1"/>
             <constructor-arg value="270"/>
         </bean>
         <bean id="music2" class="com.geyao.demo.soundSystem.Music">
             <constructor-arg value="i do 2"/>
             <constructor-arg value="270"/>
         </bean>
         <bean id="music3" class="com.geyao.demo.soundSystem.Music">
             <constructor-arg value="i do 3"/>
             <constructor-arg value="270"/>
         </bean>
     <bean id="compactDisc1"  class="com.geyao.demo.soundSystem.CompactDisc">
         <constructor-arg name="title" value="I Do"/>
         <constructor-arg name="artist" value="莫文蔚"/>
         <constructor-arg name="tracks">
             <set>
                 <!--<value>i do 1</value>
                 <value>i do 2</value>
                 <value>i do 3</value>-->
                 <ref bean="music1"/>
                 <ref bean="music2"/>
                 <ref bean="music3"/>
                 <ref bean="music3"/>
             </set>
         </constructor-arg>
     </bean>
     </beans>
        <!-- <bean name="compactDisc2" class="com.geyao.demo.soundSystem.CompactDisc"></bean>
         <bean name="cdPlayer1" class="com.geyao.demo.soundSystem.CDPlayer">
             <constructor-arg ref="compactDisc1"/>
         </bean>
         <bean name="cdPlayer2" class="com.geyao.demo.soundSystem.CDPlayer" c:cd-ref="compactDisc2">
         </bean>-->log4j.properties
    ### 设置###
     log4j.rootLogger = ERROR,stdout
     ### 输出信息到控制抬 ###
     log4j.appender.stdout = org.apache.log4j.ConsoleAppender
     log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
     log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
     log4j.category.org.springframework.beans.factory=ERRORCompactDisc类
    package com.geyao.demo.soundSystem;
     import java.util.List;
     import java.util.Set;
     public class CompactDisc {
         private String title;
         private String artist;
         private Set<Music> tracks;
         public CompactDisc() {
             super();
             System.out.println("compactdisc构造函数");
         }
         public CompactDisc(String title,String artist){
             this.title =title;
             this.artist=artist;
             System.out.println("compactDisc的有残构造函数"+this.toString());
         }
         public CompactDisc(String title, String artist, Set<Music> tracks) {
             this.title = title;
             this.artist = artist;
             this.tracks = tracks;
             System.out.println("s三个方法的构造函数");
         }
         public void play(){
             System.out.println("播放cd音乐"+this.toString()+""+this.title+""+this.artist);
             for(Music track:this.tracks){
                 System.out.println("音乐"+track.getTitle()+"时长"+track.getDuration());
             }
         }
     }Music类
    package com.geyao.demo.soundSystem;
     public class Music {
         private String title;
         private Integer duration;
         public String getTitle() {
             return title;
         }
         public void setTitle(String title) {
             this.title = title;
         }
         public Integer getDuration() {
             return duration;
         }
         public void setDuration(Integer duration) {
             this.duration = duration;
         }
         public Music() {
             super();
         }
         public Music(String title, Integer duration) {
             this.title = title;
             this.duration = duration;
         }
     }cdplayer类
    package com.geyao.demo.soundSystem;
     public class CDPlayer {
         private CompactDisc cd;
         public CDPlayer() {
             super();
             System.out.println("cdplayer的构造方法"+this.toString());
         }
         public CDPlayer(CompactDisc cd){
             this.cd=cd;
             System.out.println("cdplayer的有残构造方法");
         }
         public void play(){
             cd.play();
         }
     }ApplicationSpring类
    import com.geyao.demo.soundSystem.CompactDisc;
     import org.springframework.context.support.ClassPathXmlApplicationContext;
     public class ApplicationSpring {
         public static void main(String[] args){
             System.out.println("Application ");
             ClassPathXmlApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
             CompactDisc cd1=(CompactDisc) context.getBean("compactDisc1");
             CompactDisc cd2=(CompactDisc) context.getBean("compactDisc2");
             cd1.play();
             cd2.play();
         }
     }appTest类
    package com.geyao.demo.souundSystem;
     import com.geyao.demo.soundSystem.CompactDisc;
     import org.junit.Test;
     import org.junit.runner.RunWith;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.beans.factory.annotation.Qualifier;
     import org.springframework.test.context.ContextConfiguration;
     import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
     @RunWith(SpringJUnit4ClassRunner.class)
     @ContextConfiguration("classpath:applicationContext.xml")
     public class AppTest {
         @Autowired
         private CompactDisc compactDisc1;
         //@Autowired
         //private CompactDisc compactDisc12;
         //@Autowired
         //@Qualifier("compacDisc2")
        // private CompactDisc compactDisc3;
         @Test
         public void testApp(){
             compactDisc1.play();
            // compactDisc12.play();
            // compactDisc3.play();
         }
     }
      CDplayerTest
    package com.geyao.demo.souundSystem;
     import com.geyao.demo.soundSystem.CDPlayer;
     import org.junit.Test;
     import org.junit.runner.RunWith;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.test.context.ContextConfiguration;
     import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
     @RunWith(SpringJUnit4ClassRunner.class)
     @ContextConfiguration("classpath:applicationContext.xml")
     public class CDplayerTest {
         @Autowired
         private CDPlayer cdPlayer1;
         @Autowired
         private CDPlayer cdPlayer2;
         @Test
         public void test01(){
             cdPlayer1.play();
         }
         @Test
         public void test02(){
             cdPlayer1.play();
         }
     }

运行结果

   s三个方法的构造函数

   播放cd音乐com.geyao.demo.soundSystem.CompactDisc@4d1c005eI Do莫文蔚

   音乐i do 1时长270

   音乐i do 2时长270

   音乐i do 3时长270

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