请求出现 想要跳转到错误页面
就需要对springmvc进行配置
方法1:基于xml的配置
springmvc.xml配置类
<!--配置基于xml的异常映射-->
<bean id="simpleMappingExceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<!--配置异常和对应页面的映射-->
<property name="exceptionMappings" >
<props>
<prop key="java.lang.Exception">erroe</prop>
</props>
</property>
</bean>
2.方法2：基于@ControllerAdvice
@ControllerAdvice
public class ExceptionResolver {
@ExceptionHandler(value = NullPointerException.class)
public ModelAndView nullPointerExceptionResovler(NullPointerException e, HttpServletRequest request, HttpServletResponse response) throws IOException {
String viewName="erroe";
return commonReslover(viewName,response,request,e);
}
private ModelAndView commonReslover(String viewName,HttpServletResponse response,HttpServletRequest request,Exception e) throws IOException {
boolean judgeResult = CrowdUtil.judgeRequestType(request);
if(judgeResult){
ResultEntity<Object> resultEntity=ResultEntity.failed(e.getMessage());
//转成gson对象
Gson gson=new Gson();
response.getWriter().write(gson.toJson(resultEntity));
return null;
}
ModelAndView modelAndView=new ModelAndView();
modelAndView.addObject("exception",e);
modelAndView.setViewName(viewName);
return modelAndView;
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
