Spring Boot全局异常处理解析

2019-11-26 12:01:00

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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;@ControllerAdvicepublic 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;@ControllerAdvicepublic 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