MySQL使用者許可權導致的建立Trigger失敗
阿新 • • 發佈：2019-01-10
說來慚愧，MySQL一直處於只會用，不怎麼理解的階段。甚至是一些較為深層次的管理，都不怎麼熟悉，得加強啊！
近日，系統測試，使用MySQL資料庫，需要在某個表上建立觸發器，資料庫是在本機安裝。但是，無論如何都無法建立觸發器，後臺錯誤資訊如下：
分析錯誤資訊：TRIGGER command denied to user 'root'@'mortimer-PC' for table 't_user'，看起來是不允許root使用者在t_user表上執行TRIGGER命令，為啥不允許？com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: TRIGGER command denied to user 'root'@'mortimer-PC' for table 't_user' at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) 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:1052) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4096) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4028) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2490) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2651) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2677) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2627) at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:841) at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:681) at com.apusic.jdbc.adapter.StatementHandle.execute(Unknown Source) at com.apusic.esb.base.util.SQLUtil.createDBObjectIfNecessary(SQLUtil.java:263) at com.apusic.esb.base.util.SQLUtil.createDBObjectIfNecessary(SQLUtil.java:225) at com.apusic.esb.config.trigger.mysql.MySqlTriggerManager.createTriggersIfNecessary(MySqlTriggerManager.java:83) at com.apusic.esb.config.trigger.TriggerConfigManager.deploy(TriggerConfigManager.java:331) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.apusic.esb.base.communication.CommInvokeUtil.invoke(CommInvokeUtil.java:139) at com.apusic.esb.base.communication.CommInvokeUtil.invoke(CommInvokeUtil.java:43) at com.apusic.esb.base.communication.CommInvokeUtil.invoke(CommInvokeUtil.java:27) at com.apusic.esb.base.communication.socket.server.CommSocketServer$RequestProcessor.run(CommSocketServer.java:99) at com.apusic.util.ThreadPoolImpl$WorkerThread.run(Unknown Source) 2014-06-25 10:38:42 錯誤 [apusic.com.apusic.esb.config.trigger.TriggerConfigManager] com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: TRIGGER command denied to user 'root'@'mortimer-PC' for table 't_user' at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) 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:1052) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4096) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4028) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2490) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2651) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2677) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2627) at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:841) at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:681) at com.apusic.jdbc.adapter.StatementHandle.execute(Unknown Source) at com.apusic.esb.base.util.SQLUtil.createDBObjectIfNecessary(SQLUtil.java:263) at com.apusic.esb.base.util.SQLUtil.createDBObjectIfNecessary(SQLUtil.java:225) at com.apusic.esb.config.trigger.mysql.MySqlTriggerManager.createTriggersIfNecessary(MySqlTriggerManager.java:83) at com.apusic.esb.config.trigger.TriggerConfigManager.deploy(TriggerConfigManager.java:331) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.apusic.esb.base.communication.CommInvokeUtil.invoke(CommInvokeUtil.java:139) at com.apusic.esb.base.communication.CommInvokeUtil.invoke(CommInvokeUtil.java:43) at com.apusic.esb.base.communication.CommInvokeUtil.invoke(CommInvokeUtil.java:27) at com.apusic.esb.base.communication.socket.server.CommSocketServer$RequestProcessor.run(CommSocketServer.java:99) at com.apusic.util.ThreadPoolImpl$WorkerThread.run(Unknown Source)
分析下，首先懷疑是否驅動的問題，因為，驅動確實存在不匹配的問題，驅動的版本較低（針對5.0），而伺服器版本為5.5，替換驅動之後問題依舊。
其次，分析錯誤資訊本身，不允許執行神馬命令，看起來貌似是許可權問題，Navicat連線資料庫，檢視使用者許可權，發現使用者“[email protected]%”的“Trigger”一欄未選中！而此次連線的使用者，看起來是“ [email protected]”，因此，“[email protected]”的規則，貌似不會生效，估計是此原因，造成無法建立觸發器。
調整“[email protected]%”使用者的許可權，選中“Trigger”欄，重啟MySQL服務，重新連線MySQL，建立觸發器，OK！