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>net.cybcclass</groupId>
<artifactId>cyb_spring</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.5</version>
</dependency>
</dependencies>
</project>
VideoService.java
package net.cybclass.sp.servicce;
import net.cybclass.sp.domain.Video;
public interface VideoService {
int save(Video video);
Video findById(int id);
}
VideoServiceImpl.java
package net.cybclass.sp.servicce;
import net.cybclass.sp.domain.Video;
import org.springframework.stereotype.Component;
//@Component("videoService") //相当于配置bean的id
@Component() //相当于配置bean的id
public class VideoServiceImpl implements VideoService{
public int save(Video video) {
System.out.println("保存Video");
return 0;
}
public Video findById(int id) {
System.out.println("根据id找视频");
return new Video();
}
}
在实现类上加@Component,若没有取名字的话,默认是,类名首字母小写
演示
