Question

springmvc只要注入service就报错,谁能帮我看看啊

public class testBatisController {

@Autowired
private UserService userService ;

@RequestMapping("/hello1")
public ModelAndView hello1()
return new ModelAndView("hello", "message",1);
}
我不注入那段service没事情一写注入就报这个错误:
No qualifying bean of type [net.spring.servoce.UserService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Answer 1

你看你的Service层的借口枝哪是不是有多个实现类，比如UserService还猛银码有UserServiceImpl_1和UserServiceImpl_2两个实现类？如果有，可以用
@Qualifier("userService_1")进行细粒度的Bean注入，Spring默认是按type注入，多个实现类不指定具体实现类型是会报错的！！！搏前！