本篇文章为你整理了spring xml配置中引用java配置不能用ClassPathXmlApplicationContext（）的详细内容，包含有 spring xml配置中引用java配置不能用ClassPathXmlApplicationContext，希望能帮助你了解 spring xml配置中引用java配置不能用ClassPathXmlApplicationContext。
private String title = "Sgt. Peppers Lonely Hearts Club Band";
private String artist = "The Beatles";
public void play() {
System.out.println("Playing " + title + " by " + artist);
}
播放器接口
package v4.c2;
public interface MediaPlayer {
void play();
}
播放器实现类：
package v4.c2;
import org.springframework.beans.factory.annotation.Autowired;
public class CDPlayer implements MediaPlayer {
private CompactDisc cd;
@Autowired
public CDPlayer(CompactDisc cd) {
this.cd = cd;
public void play() {
cd.play();
}
CD配置类：
package v4.c2;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class CDConfig {
@Bean
public CompactDisc compactDisc() {
System.out.println(2222);
return new SgtPeppers();
}
播放器的配置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 /
bean id="cdPlayer"
c:cd-ref="compactDisc" /
/beans
注意这里就是在xml配置中引用java配置
bean /
现在用ClassPathXmlApplicationContext测试
package v4.c2;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Boot {
public static void main(String[] args) {
ClassPathXmlApplicationContext ac = new ClassPathXmlApplicationContext("v4/c2/cdplayer-config.xml");
MediaPlayer media = ac.getBean(MediaPlayer.class);
media.play();
ac.close();
}
报错：
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named compactDisc available
换成AnnotationConfigApplicationContext的方式，要添加一个根配置类：
package v4.c2;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.ImportResource;
@Configuration
@ImportResource("classpath:v4/c2/cdplayer-config.xml")
public class SoundSystemConfig {
}
这样测试：
package v4.c2;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class Boot {
public static void main(String[] args) {
AnnotationConfigApplicationContext ac =new AnnotationConfigApplicationContext(SoundSystemConfig.class);
MediaPlayer media = ac.getBean(MediaPlayer.class);
media.play();
ac.close();
}
成功，输出：
2222
Playing Sgt. Peppers Lonely Hearts Club Band by The Beatles
以上就是spring xml配置中引用java配置不能用ClassPathXmlApplicationContext（）的详细内容，想要了解更多 spring xml配置中引用java配置不能用ClassPathXmlApplicationContext的内容，请持续关注盛行IT软件开发工作室。
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