SpringBoot 错误页面跳转

朱雀 2023-07-03 08:06 180阅读 0赞

## SpringBoot实现MVC 404、500等错误时跳转自定义页面 ##

**一、新增配置类**

package com.study.demo.config;
    
    
    import org.springframework.boot.web.server.ErrorPage;
    import org.springframework.boot.web.server.ErrorPageRegistrar;
    import org.springframework.boot.web.server.ErrorPageRegistry;
    import org.springframework.http.HttpStatus;
    import org.springframework.stereotype.Component;
    
    /** * 错误页面的配置 */
    @Component
    public class ErrorPageConfig implements ErrorPageRegistrar { 
        @Override
        public void registerErrorPages(ErrorPageRegistry registry) { 
            ErrorPage error400Page = new ErrorPage(HttpStatus.BAD_REQUEST, "/errorPageController/error_400");
            ErrorPage error401Page = new ErrorPage(HttpStatus.UNAUTHORIZED, "/errorPageController/error_401");
            ErrorPage error404Page = new ErrorPage(HttpStatus.NOT_FOUND, "/errorPageController/error_404");
            ErrorPage error500Page = new ErrorPage(HttpStatus.INTERNAL_SERVER_ERROR, "/errorPageController/error_500");
            registry.addErrorPages(error400Page,error401Page,error404Page,error500Page);
        }
    }

**二、错误页面跳转控制器**

package com.study.demo.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    @Controller
    @RequestMapping("/errorPageController")
    public class ErrorPageController { 
    
        @RequestMapping("/error_{errorCode}")
        public String error(@PathVariable int errorCode){ 
            String responseMsg;
            switch (errorCode) { 
                case 400: responseMsg = "/400.html"; break;
                case 401: responseMsg = "/401.html"; break;
                case 404: responseMsg = "/404.html"; break;
                case 500: responseMsg = "/500.html"; break;
                default: responseMsg = "/404.html"; break;
            }
            return responseMsg;
        }
    
    }