HOWTO使用使用基于Java的注释配置的Spring MVC全局处理404异常 [英] HOWTO handle 404 exceptions globally using Spring MVC configured using Java based Annotations
问题描述
我正在构建Spring 4 MVC应用程序.并且它是使用Java注释完全配置的.没有web.xml
.像这样,通过使用AbstractAnnotationConfigDispatcherServletInitializer
和WebMvcConfigurerAdapter
的实例配置该应用程序,
I am building a Spring 4 MVC app. And it is completely configured using Java Annotations. There is no web.xml
. The app is configured by using instance of AbstractAnnotationConfigDispatcherServletInitializer
and WebMvcConfigurerAdapter
like so,
@Configuration
@EnableWebMvc
@ComponentScan(basePackages = {"com.example.*"})
@EnableTransactionManagement
@PropertySource("/WEB-INF/properties/application.properties")
public class WebAppConfig extends WebMvcConfigurerAdapter {
...
}
和
public class WebAppInitializer extends
AbstractAnnotationConfigDispatcherServletInitializer {
...
}
我现在正在尝试为404页添加全局/全部捕获异常处理程序,即HttpStatus.NOT_FOUND
,但没有成功.以下是我尝试过的一些方法.
I am now trying to add a global/catch-all exception handler for 404 pages i.e. HttpStatus.NOT_FOUND
but no success. Below are some of the ways I tried.
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.NoHandlerFoundException;
import org.springframework.web.servlet.mvc.multiaction.NoSuchRequestHandlingMethodException;
@ControllerAdvice
public class GlobalExceptionHandlerController {
@ExceptionHandler
@ResponseStatus(HttpStatus.NOT_FOUND)
public ModelAndView handleException (NoSuchRequestHandlingMethodException ex) {
ModelAndView mav = new ModelAndView();
return mav;
}
@ExceptionHandler
@ResponseStatus(HttpStatus.NOT_FOUND)
public ModelAndView handleExceptiond (NoHandlerFoundException ex) {
ModelAndView mav = new ModelAndView();
return mav;
}
@ResponseStatus(HttpStatus.NOT_FOUND)
@ExceptionHandler(NoHandlerFoundException.class)
public void handleConflict() {
}
@ResponseStatus(HttpStatus.NOT_FOUND)
@ExceptionHandler(NoSuchRequestHandlingMethodException.class)
public void handlesdConflict() {
}
}
这些方法均未执行.我对如何处理这个问题不知所措.我不想使用web.xml
,因为那样我就必须为此创建一个.
None of these methods get executed. I am at a loss as to how to handle this. I do not want to use web.xml
becasue then I would have to create one just for this.
推荐答案
By default, the DispatcherServlet
does not throw a NoHandlerFoundException
. You need to enable that.
AbstractAnnotationConfigDispatcherServletInitializer
应该让您覆盖DispatcherServlet
的创建方式.这样做并致电
The AbstractAnnotationConfigDispatcherServletInitializer
should let you override how the DispatcherServlet
is created. Do that and call
DispatcherServlet dispatcherServlet = ...; // might get it from super implementation
dispatcherServlet.setThrowExceptionIfNoHandlerFound(true);
这篇关于HOWTO使用使用基于Java的注释配置的Spring MVC全局处理404异常的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!