spring+mvc扫描注解一直报错？

Question

org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.service.UserService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.annotation.Resource(shareable=true, lookup=, name=, description=, authenticationType=CONTAINER, type=class java.lang.Object, mappedName=)}   

Answer 1

你的service使用spring容器管理了吗，service使用@service指定bean名字，也可以默认。
UserService 默认就是userService.你的注解扫描包 包含了你的bean定义吗。
Web层注入
@Autowired
@Qualifier("userService")
private UserService userService;