Spring找不到bean

Question

我收到以下错误：

Field delegate in package.rest.api.MyApiController required a bean of type 'package.rest.api.MyApiDelegate' that could not be found.

我尝试在主类中添加注释@ComponentScan("package.rest")，但没有帮助。

package package;
@SpringBootApplication
@Import(SpecificationConf.class)
//@ComponentScan("package.rest")
public class MyApp extends SpringBootServletInitializer {
    public static void main(String[] args) {
        SpringApplication.run(MyApp.class, args);
    }
}

package package.rest.api;

@Controller
@RequestMapping(...)
public class MyApiController implements MyApi {

    @Autowired
    @Qualifier("myService")
    private MyApiDelegate delegate;

}

package package.rest;

@Service("myService")
public class MyApiDelegateImpl implements MyApiDelegate {
...
}

package package.rest.api;

public interface MyApiDelegate {
...
}

是否会由于应用程序上下文的错误配置或不适当的 Maven 配置文件而发生该问题？我尝试将类移动到同一个包中，但也没有帮助。

Answer 1

鉴于您正在构建 JAR 文件而不是 WAR 文件，请尝试从主类中删除 SpringBootServletInitializer，如下所示：

package package;

@SpringBootApplication
@Import(SpecificationConf.class)
public class MyApp {
    public static void main(String[] args) {
        SpringApplication.run(MyApp.class, args);
    }
}