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Spring Boot笔记-普通异常错误截取及构造错误页面
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Spring Boot笔记-普通异常错误截取及构造错误页面
小編覺得挺不錯(cuò)的,現(xiàn)在分享給大家,幫大家做個(gè)參考.
在web開發(fā)過程中，數(shù)據(jù)問題會(huì)有異常，會(huì)拋到頁面上，這樣造成用戶體驗(yàn)差。
目前這個(gè)筆記是使用Spring Boot獲取異常，并構(gòu)造新的界面
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程序運(yùn)行截圖如下：
另外一個(gè)：
這樣的話就達(dá)到了頁面友好的效果
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程序結(jié)構(gòu)如下：
ErrorController.java
package com.example.demo.controller;import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody;@Controller @RequestMapping("err") public class ErrorController {@RequestMapping("/error")public String error(){int i = 1 / 0;return "error";}@RequestMapping("/test")@ResponseBodypublic String test(){String str = null;str.charAt(100);return "";}@RequestMapping("/")public String index(){return "index";} }MyExceptionHandler.java
package com.example.demo.exception;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;@ControllerAdvice public class MyExceptionHandler {@ExceptionHandler(value = Exception.class)public Object errorHandler(HttpServletRequest request, HttpServletResponse response, Exception e)throws Exception{e.printStackTrace();ModelAndView modelAndView = new ModelAndView();modelAndView.addObject("exception", e);modelAndView.addObject("url", request.getRequestURL());modelAndView.setViewName("error");return modelAndView;} }DemoApplication.java
package com.example.demo;import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication public class DemoApplication {public static void main(String[] args) {SpringApplication.run(DemoApplication.class, args);}}error.html
<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org"> <head><meta charset="UTF-8"><title>Title</title> </head> <body><h1 style="color: red">發(fā)生錯(cuò)誤：</h1><div th:text="${url}"></div><div th:text="${exception}"></div> </body> </html>index.html
<!DOCTYPE html> <html lang="en"> <head><meta charset="UTF-8"><title>Title</title> </head> <body> <h1>normal page</h1> </body> </html>porn.xml
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.1.12.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>demo</artifactId><version>0.0.1-SNAPSHOT</version><name>demo</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>?
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