Spring Boot全局异常处理解析_JAVA教程

Spring Boot全局异常处理解析

2020-11-19 10:26Miss_wang JAVA教程

这篇文章主要为大家详细介绍了Spring Boot全局异常处理的相关资料，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

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

1 2	`#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";

									 }

									}