在设计数据表时,如果将某些列设置为关联其它表的外键,那么如果对其进行增加.修改操作时,其关联表若没有相匹配的记录则报错,或者在对其关联表进行删除时,也会报错,这就是外键约束的作用,当然除了外键还有许多约束,在此暂不讨论,本篇文章主要讲的是,如何判断是否为SQL的引用约束异常,从而能够更好的将SQL复杂的报错转换为用户能够明白的友好提示. 扩展Exception,增加判断Exception是否为SQL引用约束异常方法(IsSqlReferenceConstraintException): publ…

堆栈信息: 2014-6-17 10:33:58 org.apache.tomcat.util.digester.Digester endElement 严重: End event threw exception java.lang.IllegalArgumentException: Can't convert argument: null at org.apache.tomcat.util.IntrospectionUtils.convert(IntrospectionUtils.java:1…

1.什么操作出现:当我在项目中添加产品或者修改时,浏览器出现HTTP Status 500 - Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: could not execute statement; Ecplise出现这个: 十二月 20, 2017 1:51:02 下午 org.apache.catalina.core.StandardWrapperVal…

1.错误描述 [ERROR:]2015-05-05 09:27:12,090 [插入失败] org.hibernate.exception.JDBCConnectionException: Could not open connection at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:132) at org.hibernate.exce…

org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Cannot open connection org.springframework.orm.hibernate3.Hiberna…

在springcloud集成kafka,发送消息时报错: 2018-08-15 16:01:34.159 [http-nio-8081-exec-1] INFO  org.apache.kafka.common.utils.AppInfoParser - Kafka version : 0.10.1.1 2018-08-15 16:01:34.159 [http-nio-8081-exec-1] INFO  org.apache.kafka.common.utils.AppInfoParser…

org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet" 最终解决:是因为我昨天对数据库修改,去掉一列…

RabbitMQ   报出的错! org.springframework.amqp.rabbit.listener.exception.ListenerExecutionFailedException: Listener threw exception Caused by: org.springframework.amqp.rabbit.listener.adapter.ReplyFailureException: Failed to send reply with payload 'cj' 2…

报错如下: org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.DataException: could not execute statement at org.springframework.orm.jpa.vendor.HibernateJpaDialect.co…

org.springframework.dao.InvalidDataAccessResourceUsageException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not execute statement 报以上错误,是数据库操作错误:可能是: 1.数据库语句 2.数据库存在否 可以根据下面的信息判断错误地方…

将带有WMI  WATCH  TASK的SSIS包排到sql server  agent跑,报异常,这是运行账号权限的问题. Executed as user: sss. Microsoft (R) SQL Server Execute Package Utility Version 13.0.1601.5 for 64-bit Copyright (C) 2016 Microsoft. All rights reserved. Started: 4:22:12 PM Error: 2019-1…

使用SpringBoot做JAVA开发时,用Repository.save();保存数据的时候遇到了报错: could not execute statement; SQL [n/a]; constraint [PRIMARY]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement 去搜索了一下解决方法,需要将主键设置自增,虽然不清楚为什么,但是…

原因: 这个问题的解决方案很简单,主要是因为数据库中不存在相关的表或者列. org.springframework.dao.InvalidDataAccessApiUsageException: Parameter with that position [1] did not exist; nested exception is java.lang.IllegalArgumentException: Parameter with that position [1] did not exist o…

代码很简单 package com.kele.controller; import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping; @Controllerpublic class HelloController { @RequestMapping("/success") public String success(){ ret…

https://community.alfresco.com/thread/225041-exception-while-invoking-tasklistener-null Ok, so the problem is quite easy: in 5.9 (and other versions) the transaction management with spring was actually not consistent. In 5.18 (and earlier), we fixed…

在.NET中,异常是指成员没有完成它的名称宣称可以完成的行动.在异常的机制中,异常和某件事情的发生频率无关. 异常处理四要素包括:一个表示异常详细信息的类类型:一个向调用者引发异常类实例的成员:调用者的一段调用异常成员的代码块:调用者的一段处理将要发生异常的代码块.异常类类型包括:基类:System.Exception:系统级异常:System.SystemException:应用程序级异常:System.ApplicationException. (一).在.NET中有如下的异常类: (1).…

没有什么问题,但是却报了Could not execute JDBC batch update的错,主要是配置文件设置了关联,数据却没有关联造成的,只要数据正确就没有问题. 另外,造成这个原因的还可能是数据库的驱动jar包不支持. 还有就是csdn的dizhang的专栏提到的下面问题引起的: 1.因为Hibernate Tools(或者Eclipse本身的Database Explorer)生成*.hbn.xml工具中包含有catalog="***"(*表示数据库名称)这样的属性,将该…

Exception.Message contains only the message (doh) associated with the exception. Example: Object reference not set to an instance of an object The Exception.ToString() method will give a much more verbose output, containing the exception type, the me…

java.lang.NoSuchMethodError: mainException in thread "main" 出现该异常是因为在之前我的项目中自定义了一个String类,如下图 在main(String[] args)中,他就会使用我自定义的String类,而不是java.lang中的类.但是虚拟机里面调用的main函数的参数并不与之匹配,所以就找不到他需要的main函数,也就发生了异常. 解决方法: 最简单的方法就是删掉自定义的String类, 如果String还有其他用途…

我是在SpringBoot项目使用Thymeleaf作为模板引擎时报的错误 controller代码非常简单,如下所示: @RequestMapping("/abc") public String hello(Model model) { model.addAttribute("msg","你好"); return "success"; } 前端success.html也很简单,代码如下: <!DOCTYPE html&…

#java##reactor##flux##error##exception# 视频解说: https://www.bilibili.com/video/av79468713/ FluxMonoTestCase.java package com.example.reactor; import lombok.extern.slf4j.Slf4j; import org.junit.jupiter.api.Test; import reactor.core.publisher.Flux; impor…

标题翻译: StructureMap异常代码:207内部异常,同时创造PluginType QIMS.Repository.IComStaffRepository的实例“06fc8bd7-76db-47c1-8d71-31090a074f5e”.详细信息请参考内部异常 解决方案: 没安装oracle数据库插件程序:ODAC121021_x64(Oracle Web Site Release 3) For .NET…

java.lang.IllegalArgumentException: Attribute value must not be null at org.springframework.util.Assert.notNull(Assert.java:112) at org.springframework.web.bind.support.DefaultSessionAttributeStore.storeAttribute(DefaultSessionAttributeStore.java:53)…

org.springframework.kafka.support.LoggingProducerListener- Exception thrown when sending a message with key='null' and payload='{"dataDts":["20180329","20180328","20180327","20180326","20180323"]…

Introduction One of the revolutionary features of C++ over traditional languages is its support for exception handling. It provides a very good alternative to traditional techniques of error handling which are often inadequate and error-prone. The cl…

List Never swallow the exception in catch block Declare the specific checked exceptions that your method can throw Do not catch the Exception class rather catch specific sub classes Never catch Throwable class Always correctly wrap the exceptions in…

Exception Try { ... ... } catch (Exception ex) { …; throw new Throwable(ex); } catch (Throwable ex) { …; } finally { } /* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distr…

http://www.onjava.com/pub/a/onjava/2003/11/19/exceptions.html http://www.onjava.com/pub/a/onjava/2003/11/19/exceptions.html Best Practices for Exception Handling by Gunjan Doshi11/19/2003 One of the problems with exception handling is knowing when an…

原文地址:http://howtodoinjava.com/2013/04/04/java-exception-handling-best-practices/ This post is another addition in best practices series available in this blog. In this post, I am covering some well-known and some little known practices which you must…

综述 Exception 和 Error 都是继承了 Throwable 类,在 Java 中只有 Throwable 类型的实例才可以被抛出(throw)或者捕获(catch),它是异常处理机制的基本组成类型.Exception 和 Error 体现了 Java 平台设计者对不同异常情况的分类.从设计初衷也能看出区别:Java希望可以从异常中恢复程序, 但却不应该尝试从错误中恢复程序: Error 是指在正常情况下,不大可能出现的情况,绝大部分的 Error 都会导致程序(比如 JVM 自身)…