我知道这个问题已经问了很多遍,但是没有一个可以使我的代码正常工作。我可能做错了什么,但找不到。

我将Spring Boot与AngularJS结合使用,我想做的是预处理所有请求。

这是我的代码:

控制器:

@RestController
@RequestMapping(value = { "/user" })
public class UserController {

    @RequestMapping(value = "/get", method = RequestMethod.GET)
    public String getLanguage() {
        return "user";
    }
}

拦截器:
@Component
public class RequestHandler extends HandlerInterceptorAdapter {

  @Override
  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws ServletException {
      System.out.println("intercepted");
      return false;
  }
}

WebConfig:
@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

  @Autowired
  HandlerInterceptor requestHandler;

  @Override
  public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(requestHandler);
  }
}

并将其添加到applicationContext.xml中:
<mvc:interceptors>
    <bean class="server.RequestHandler" />
</mvc:interceptors>

我整个周末都在努力使这项工作成功,但是我不能,任何帮助将不胜感激!

谢谢!

最佳答案

您可以尝试手动定义Bean,而无需像下面这样将Interceptor声明为@Component:

RequestHandler.java

public class RequestHandler extends HandlerInterceptorAdapter {

    @Override
    public boolean preHandle(final HttpServletRequest request, final HttpServletResponse response, final Object handler) throws ServletException {
        System.out.println("intercepted");
        return true;
    }
}

WebConfig.java
@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

    @Bean
    public RequestHandler requestHandler() {
        return new RequestHandler();
    }

    @Override
    public void addInterceptors(final InterceptorRegistry registry) {
        registry.addInterceptor(requestHandler());
    }
}

顺便说一句:如果将该类声明为拦截器,为什么不将其重命名为包含术语Interceptor的内容,例如RequestInterceptor

它应该直接工作。请让我知道这是否对您有用!

更新:我已经在原型中实现了这一点。请参阅此最小,完整且可验证的示例。希望能帮助到你!
https://github.com/dbubenheim/stackoverflow-41794738.git

09-11 17:14