spring注解开发

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:c="http://www.springframework.org/schema/c"
	xmlns:p="http://www.springframework.org/schema/p"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
						http://www.springframework.org/schema/beans/spring-beans.xsd
						http://www.springframework.org/schema/context
						http://www.springframework.org/schema/context/spring-context.xsd
						http://www.springframework.org/schema/aop
						http://www.springframework.org/schema/aop/spring-aop.xsd
						http://www.springframework.org/schema/tx
						http://www.springframework.org/schema/tx/spring-tx.xsd">

       <!-- 引入注解解析器 -->
       <context:annotation-config />
       <!-- 组件扫描 -->
	   <context:component-scan base-package="com.baidu.test"/>
</beans>

　　UserService　　

public interface UserService {
	public abstract void login();

}

　　UserServiceImp

@Component("UserService")
public class UserServiceImp implements UserService{
	@Value("zhan")
	private String name;

	@Override
	public void login() {
		System.out.println("login.....");
		System.out.println(name);
	}
}