应用错误收集

我遇到了这个错误。

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException：你有一个 SQL语法错误;查看与您的手册相对应的手册 MySQL服务器版本，用于在＆＃39; like =＆＃39; 1＆＃39;附近使用正确的语法，不喜欢=＆＃39; 0＆＃39;，mealID =＆＃39; 17＆＃39;在哪里用餐ID =＆＃39; 17＆＃39;＆＃39;在第1行 sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）在 sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:62）连接已关闭 sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45） at java.lang.reflect.Constructor.newInstance（Constructor.java:408）在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:1054）at at com.mysql.jdbc.MysqlIO.checkErrorPacket（MysqlIO.java:4120）at at com.mysql.jdbc.MysqlIO.checkErrorPacket（MysqlIO.java:4052）at at com.mysql.jdbc.MysqlIO.sendCommand（MysqlIO.java:2503）at at com.mysql.jdbc.MysqlIO.sqlQueryDirect（MysqlIO.java:2664）at at com.mysql.jdbc.ConnectionImpl.execSQL（ConnectionImpl.java:2809）at at com.mysql.jdbc.StatementImpl.executeUpdate（StatementImpl.java:1811）在 com.mysql.jdbc.StatementImpl.executeUpdate（StatementImpl.java:1725）在OOADPJdb.database.DBController.updateRequest（DBController.java:73）在projPackage.Menu.updateLike（Menu.java:409）at projPackage.RetrieveMenuUI.likeBtnActionPerformed（RetrieveMenuUI.java:433）在projPackage.RetrieveMenuUI.access $ 500（RetrieveMenuUI.java:21）at at projPackage.RetrieveMenuUI $ 6.actionPerformed（RetrieveMenuUI.java:276）在 javax.swing.AbstractButton.fireActionPerformed（AbstractButton.java:2022）在 javax.swing.AbstractButton中的$ Handler.actionPerformed（AbstractButton.java:2346）在 javax.swing.DefaultButtonModel.fireActionPerformed（DefaultButtonModel.java:402）在 javax.swing.DefaultButtonModel.setPressed（DefaultButtonModel.java:259）在 javax.swing.plaf.basic.BasicButtonListener.mouseReleased（BasicButtonListener.java:252）在java.awt.Component.processMouseEvent（Component.java：6527）at javax.swing.JComponent.processMouseEvent（JComponent.java:3321）at java.awt.Component.processEvent（Component.java:6292）at java.awt.Container.processEvent（Container.java:2234）at java.awt.Component.dispatchEventImpl（Component.java:4883）at java.awt.Container.dispatchEventImpl（Container.java:2292）at java.awt.Component.dispatchEvent（Component.java:4705）at java.awt.LightweightDispatcher.retargetMouseEvent（Container.java:4898）在 java.awt.LightweightDispatcher.processMouseEvent（Container.java:4533） at java.awt.LightweightDispatcher.dispatchEvent（Container.java:4462）在java.awt.Container.dispatchEventImpl（Container.java:2278）at java.awt.Window.dispatchEventImpl（Window.java:2739）at java.awt.Component.dispatchEvent（Component.java:4705）at java.awt.EventQueue.dispatchEventImpl（EventQueue.java:746）at at java.awt.EventQueue.access $ 400（EventQueue.java:97）at java.awt.EventQueue $ 3.run（EventQueue.java:697）at java.awt.EventQueue $ 3.run（EventQueue.java:691）at java.security.AccessController.doPrivileged（Native Method）at java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:75）在 java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:86）在java.awt.EventQueue $ 4.run（EventQueue.java:719）at java.awt.EventQueue $ 4.run（EventQueue.java:717）at java.security.AccessController.doPrivileged（Native Method）at java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:75）在java.awt.EventQueue.dispatchEvent（EventQueue.java:716）at java.awt.EventDispatchThread.pumpOneEventForFilters（EventDispatchThread.java:201）在 java.awt.EventDispatchThread.pumpEventsForFilter（EventDispatchThread.java:116）在 java.awt.EventDispatchThread.pumpEventsForHierarchy（EventDispatchThread.java:105）在 java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:101）在 java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:93）在java.awt.EventDispatchThread.run（EventDispatchThread.java:82）

这是我的SQL语句

dbQuery =＆＃34; UPDATE菜单设置为=＆＃39;＆＃34; + this.like +＆＃34;＆＃39;，dislike =＆＃39;＆＃34; +   this.dislike +＆＃34;＆＃39;，mealID =＆＃39;＆＃34; + this.mealID +＆＃34;＆＃39;＆＃34 ;;

dbQuery = dbQuery +＆＃34;在哪里用餐ID =＆＃39;＆＃34; + this.mealID +＆＃34;＆＃39;＆＃34;;

确定这是对的，但它不起作用。

更新查询的SQL语法错误

1 个答案: