Spring Boot全局异常处理 Spring Boot全局异常处理解析

时间:2021-03-24 Miss_wang 人气:0

想了解Spring Boot全局异常处理解析的相关内容吗，Miss_wang在本文为您仔细讲解Spring Boot全局异常处理的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：Spring,Boot,异常处理，下面大家一起来学习吧。

本文为大家分享了Spring Boot全局异常处理，供大家参考，具体内容如下

1、后台处理异常

a、引入thymeleaf依赖

<!-- thymeleaf模板插件 -->
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

b、在application.properties文件中设置属性

#关闭thymeleaf模板的缓存
spring.thymeleaf.cache=false

c、编写后台处理Handler　　

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

@ControllerAdvice
public class GlobalExceptionHandler {

　　//设置此handler处理所有异常
 @ExceptionHandler(value=Exception.class)
 public void defaultErrorHandler(){
 System.out.println("-------------default error");
 }
}

d、后台异常打印

-------------default error
2017-06-16 14:54:05.314 WARN 6892 --- [nio-8080-exec-1] .m.m.a.ExceptionHandlerExceptionResolver : Resolved exception caused by Handler execution: org.springframework.dao.IncorrectResultSizeDataAccessException: result returns more than one elements; nested exception is javax.persistence.NonUniqueResultException: result returns more than one elements

2、页面处理异常

a、编写html模板页面

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" 
  xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
<meta charset="UTF-8" />
<title>Insert title here</title>
</head>
<body>
 <h1 th:inlines="text">异常出现啦</h1>
 ${messages}
</body>
</html>

b、修改Handler

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

@ControllerAdvice
public class GlobalExceptionHandler {

 @ExceptionHandler(value=Exception.class)
 @ResponseBody
 public String defaultErrorHandler(){
  System.out.println("-------------default error");
  return "系统错误，请联系管理员";
 }
}

c、页面访问结果

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