SpringBoot异常处理
鸣鼓ming 人气:01.相关介绍
当发生异常时, 跳转到我们自定义的异常处理页面.
SpringBoot中只需在静态资源目录下创建一个error文件夹, 并把异常处理页面放入其中, 页面的命名与异常错误代码对应, 如404.html, 500.html.
5xx.html可以对应所有错误代码为5开头的错误
默认静态资源目录为类路径(resources)下的:
- /static
- /public
- /resources
- /META-INF/resources
2.代码实现
HelloController
package com.limi.springboottest2.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.ResponseBody; @Controller public class HelloController { @ResponseBody @GetMapping("/test1") public String test1(){ int i = 10/0; //模拟500异常 return "ok"; } }
404.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>这是自定义404</h1> </body> </html>
5xx.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>这是自定义5xx</h1> </body> </html>
3.运行测试
测试404
测试500
使用postman测试
{
"timestamp": "2022-06-22T04:12:13.740+00:00",
"status": 500,
"error": "Internal Server Error",
"trace": "java.lang.ArithmeticException: / by zero\r\n\tat com.limi.springboottest2.controller.HelloController.test1(HelloController.java:14),
"message": "/ by zero",
"path": "/test1"
}
返回的信息我们可以使用模板引擎(如thymeleaf)获取并写入自定义的异常处理页面中
加载全部内容