eclipes的Spring注解SequenceGenerator(name="sequenceGenerator")报错的解决方式 右键项目打开Properties—>JAP-->Errors/Warnings—>Queries and generators将Duplicate generator defined改为Ignore即可.…

0.4 IDEA报错以及解决方式一.端口被占用 [WARNING] FAILED SelectChannelConnector@0.0.0.0:8080: java.net.BindException: Address already in use: bindjava.net.BindException: Address already in use: bind1.首先查看端口被那个进程占用,cmd命令,netstat -p tcp -ano | findstr :80802. 查看13302进…

前言:手机app应用评论的时候,恢复表情符号.提示失败.​1,查看tomcat后台日志,核心报错信息例如以下:  Caused by: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\x97\xF0\x9F...' for column 'CONTENT' at row 1at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074)at com.mysq…

不论报任何错误 都是网络源有问题 打开.spacemacs ### 这是原头部 (defun dotspacemacs/layers ()   "Configuration Layers declaration. You should not put any user code in this function besides modifying the variable values." ### 从这里开始粘贴下列源 (setq-default    configuration-la…

javaweb报错问题以及解决方案 问题(报错信息):Application Server was not connected before run configuration stop, reason: javax.management.InstanceNotFoundException: Catalina:type=Server 解决方案:在使用idea启动tomcat的时候控制台报这个错误,原因是本机的8080端口被占用,在idea里把tomcat的启动端口从新换一个即可 问题(报错信息)…

问题1, [ERROR]Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.21.0:test (default-test) on project motherBuyBoot: There are test failures. [ERROR] Please refer to D:\web\motherbuy\target\surefire-reports for the individual test r…

1 java.sql.BatchUpdateException: ORA-01438: 值大于为此列指定的允许精度 原因:pl/sql number(n),插入的位数大于n…

mysql报错及其解决方式 1.在使用group by 查询一张表的数据的时候:select date,time,max(delaytime) as delaytime,sum(delaynum) as delaynum, max(onlineCount) as onlineCount,sum(perMinuteVerify) as perMinuteVerify,auditor from verifyDelayLog WHERE `date` = '2016-06-29' group by t…

使用spring data jpa 的删除操作,需要加注解@Modifying     @Transactional 否则报错如下: No EntityManager with actual transaction available for current thread - cannot reliably process 'remove' call 场景如下: 在service中,先执行 delete 操作,再执行 save操作 报错如下: No EntityManager with actu…

后台spring mvc接收List参数报错如下:org.springframework.beans.BeanInstantiationException: Failed to instantiate [java.util.List]: Specified class is an interface org.springframework.beans.BeanInstantiationException: Failed to instantiate [java.util.List]: Speci…