- Controller控制器:
import com.wyj.entity.vo.WebResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class AjaxErrorController {
@RequestMapping("ajax")
public String ajaxerror() {
return "ajax";
}
@RequestMapping("/getAjaxerror")
@ResponseBody
public WebResponse getAjaxerror() {
int a = 1 / 0;
return WebResponse.ok();
}
}
- Handler全局异常处理器:
import com.wyj.entity.vo.WebResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* 全局异常处理类
*/
@ControllerAdvice
public class WebAjaxExceptionHandler {
@ExceptionHandler(value = Exception.class)
public Object errorHandler(HttpServletRequest request, HttpServletResponse response, Exception e) throws Exception {
e.printStackTrace();
//判断请求是否为Ajax请求
if (isAjax(request)) { //如果是的话,就直接返回错误信息
return WebResponse.errorException(e.getMessage());
} else { //如果不是的话,就跳转到错误页面
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName(“error”); //这里需要在templates文件夹下新建一个error.html文件用作错误页面
return modelAndView;
}
}
/**
* 判断是否是Ajax请求
*
* @param request
* @return
*/
public boolean isAjax(HttpServletRequest request) {
return (request.getHeader("X-Requested-With") != null &&
"XMLHttpRequest".equals(request.getHeader("X-Requested-With").toString()));
}
}
- 总结:
这里只是全局拦截Exception,如果还需要细分异常的话比如404:NoHandlerFoundException,只需要在@ExceptionHandler注解上参数为NoHandlerFoundException.class,并且在方法参数传入时注入NoHandlerFoundException
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