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扩展Exception，增加判断Exception是否为SQL引用约束异常方法！

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…

HTTP Status 500 - Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: could not execute statement

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…

code is 9998;desc is 插入失败exception is org.hibernate.exception.JDBCConnectionException: Could not op

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 con

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…

报错org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet"

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…

org.springframework.amqp.rabbit.listener.exception.ListenerExecutionFailedException: Listener threw exception

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…

【hibernate】报错：org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.DataException: could not execute statement

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…

报错：org.springframework.dao.InvalidDataAccessResourceUsageException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not execute statement

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…

SSISWMI-Watching for the Wql query caused the following system exception: "Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))"

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…

SpringBoot保存数据报错：could not execute statement; SQL [n/a]; constraint [PRIMARY];nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement

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…