我们需要用org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer类来实现该功能,在Spring Boot的配置类(@Configuration标注的类)当中,添加如下代码:
//统一页码处理配置@Beanpublic EmbeddedServletContainerCustomizer containerCustomizer() { return new EmbeddedServletContainerCustomizer() { @Override public void customize(ConfigurableEmbeddedServletContainer container) { //ErrorPage error401Page = new ErrorPage(HttpStatus.UNAUTHORIZED, "/401.html"); ErrorPage error404Page = new ErrorPage(HttpStatus.NOT_FOUND, "/Err404.html"); ErrorPage error500Page = new ErrorPage(HttpStatus.INTERNAL_SERVER_ERROR, "/Err500.html"); container.addErrorPages( error404Page, error500Page); } };}错误页面需要放在Spring Boot web应用的static内容目录下,它的默认位置是:src/main/resources/static,如下图所示:
当然,如过你想详细的控制500错误信息,可以编写如下控制器类
package com.wx.controler.global;import javax.servlet.http.HttpServletRequest;import org.springframework.web.bind.annotation.ControllerAdvice;import org.springframework.web.bind.annotation.ExceptionHandler;import org.springframework.web.servlet.ModelAndView;@ControllerAdvicepublic class Global500ExceptionHandler {@ExceptionHandler(value = Exception.class)public ModelAndView defaultErrorHandler(HttpServletRequest req, Exception e) {ModelAndView mov=new ModelAndView("Err500");System.out.println("==========================");e.printStackTrace();System.out.println("==========================");mov.addObject("errMsg", e.toString());return mov;}}这时候,错误页码默认在webapp目录下,如图