SpringBoot 自定义异常处理
SpringBoot 自定义异常处理
1.自定义异常数据
HelloController.java
package com.zhuantai.exception.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* @author ANTIA1
* @date 2021/7/8 10:52
*/
@RestController
public class HelloController {
@GetMapping("/hello")
public Integer hello(){
return 1/0;
}
}
500.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<title>Title</title>
</head>
<body>
<table border="1">
<tr>
<td>path</td>
<td th:text="${path}"></td>
</tr>
<tr>
<td>error</td>
<td th:text="${error}"></td>
</tr>
<tr>
<td>message</td>
<td th:text="${message}"></td>
</tr>
<tr>
<td>timestamp</td>
<td th:text="${timestamp}"></td>
</tr>
<tr>
<td>status</td>
<td th:text="${status}"></td>
</tr>
</table>
</body>
</html>
MyErrorAttributes.java
package com.zhuantai.exception;
import org.springframework.boot.web.error.ErrorAttributeOptions;
import org.springframework.boot.web.servlet.error.DefaultErrorAttributes;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.WebRequest;
import java.util.Map;
/**
* 自定义异常数据
* @author ANTIA1
* @date 2021/7/8 10:41
*/
@Component
public class MyErrorAttributes extends DefaultErrorAttributes {
//自定义异常数据
@Override
public Map<String, Object> getErrorAttributes(WebRequest webRequest, ErrorAttributeOptions options) {
Map<String, Object> map = super.getErrorAttributes(webRequest, options);
if ((Integer)map.get("status") == 500){
map.put("message","服务器错误");
}
return map;
}
}
运行结果：
2.自定义异常视图
999.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<title>999</title>
</head>
<body>
<h1>999.html</h1>
<table border="1">
<tr>
<td>path</td>
<td th:text="${path}"></td>
</tr>
<tr>
<td>error</td>
<td th:text="${error}"></td>
</tr>
<tr>
<td>message</td>
<td th:text="${message}"></td>
</tr>
<tr>
<td>timestamp</td>
<td th:text="${timestamp}"></td>
</tr>
<tr>
<td>status</td>
<td th:text="${status}"></td>
</tr>
</table>
</body>
</html>
MyErrorViewResolver.java
package com.zhuantai.exception;
import org.springframework.boot.autoconfigure.web.ResourceProperties;
import org.springframework.boot.autoconfigure.web.servlet.error.DefaultErrorViewResolver;
import org.springframework.context.ApplicationContext;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;
/**
* 自定义异常视图
* @author ANTIA1
* @date 2021/7/8 10:46
*/
@Component
public class MyErrorViewResolver extends DefaultErrorViewResolver {
public MyErrorViewResolver(ApplicationContext applicationContext, ResourceProperties resourceProperties) {
super(applicationContext, resourceProperties);
}
@Override
public ModelAndView resolveErrorView(HttpServletRequest request, HttpStatus status, Map<String, Object> model) {
//定义异常视图
ModelAndView mv = new ModelAndView("zhuantai/999",model);
//一般情况下建议不在这里定义异常数据,@model 这里的map是一个不可修改的map
//但还是有解决方案的
Map<String,Object> map = new HashMap<>();
map.putAll(map);
if ((Integer)map.get("status") == 500){
map.put("message","服务器内部错误");
}
return mv;
}
}
运行结果：
