我创建了一个Grails应用程序并将其部署到Tomcat服务器。我已经将Grails应用程序配置为使用外部MySQL数据库。在启动Tomcat服务器并部署应用程序(并创建数据库模式)之后,我运行一个脚本,将关系数据从现有数据库中的多个表传输到由Grails应用程序生成的新数据库。Grails MySQLIntegrityConstraintViolationException抛出
脚本运行没有问题,并且INSERT期间没有数据库错误。
插入后,我使用我的Grails应用程序查看所有现有数据,没有任何问题。
但是,如果我停止Tomcat服务器并重新启动它,则会出现问题。我面临着catalina.out中出现以下错误:
2013-01-15 00:43:37,820 [pool-2-thread-1] ERROR util.JDBCExceptionReporter - Duplicate entry '1-2' for key 'PRIMARY'
2013-01-15 00:43:37,826 [pool-2-thread-1] ERROR events.PatchedDefaultFlushEventListener - Could not synchronize database state with session
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
Caused by: java.sql.BatchUpdateException: Duplicate entry '1-2' for key 'PRIMARY'
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:2024)
at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1449)
at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:297)
at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:297)
... 6 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry '1-2' for key 'PRIMARY'
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1039)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1990)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2151)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2625)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2119)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2415)
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1976)
... 9 more
我对这个错误感到困惑,因为如果存在重复的数据,怎么会信息已成功插入摆在首位?
谢谢!
看来批处理数据迁移脚本再次执行了吗? – coderLMN