我正在用 Java Netbeans 制作注册表单。我正在使用 CRUD jframe 和 jtable 函数。我还需要执行 MySQL 查询以将数据保存在 MySQL Workbench 中。但是每当我运行该项目时，都会出现同样的错误，程序说 MySQL 语法错误。
private void JB2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add code here:
try
{
Class.forName("com.mysql.cj.jdbc.Driver");
sqlConn = DriverManager.getConnection(data,user,password);
pst = sqlConn.prepareStatement("insert * into tracking_register_db(Name,Surname,Phone,Age,Adress,Email,"
+ "Temp,Symptoms,Exsposed) value(?,?,?,?,?,?,?,?,?,)");
pst.setString(1, JT1.getText());
pst.setString(2, JT2.getText());
pst.setString(3, JT3.getText());
pst.setString(4, JT4.getText());
pst.setString(5, JT5.getText());
pst.setString(6, JT6.getText());
pst.setString(7, JT7.getText());
pst.setString(8, JT8.getText());
pst.setString(9, JT9.getText());
pst.executeUpdate();
JOptionPane.showMessageDialog(this,"Record added");
upDateDB();
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Registration.class.getName()).log(Level.SEVERE, null, ex);
} catch (SQLException ex) {
java.util.logging.Logger.getLogger(Registration.class.getName()).log(Level.SEVERE, null, ex);
}
这是我得到的错误:
java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '* into tracking_register_db(Name,Surname,Phone,Age,Adress,Email,Temp,Symptoms,Ex' at line 1
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1098)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1046)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeLargeUpdate(ClientPreparedStatement.java:1371)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdate(ClientPreparedStatement.java:1031)
at Registration.JB2ActionPerformed(Registration.java:462)
at Registration.access$1000(Registration.java:28)
at Registration$11.actionPerformed(Registration.java:302)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6539)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6304)
at java.awt.Container.processEvent(Container.java:2239)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2297)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
at java.awt.Container.dispatchEventImpl(Container.java:2283)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
at java.awt.EventQueue$4.run(EventQueue.java:733)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
最佳答案
特别是准备好的语句不应该声明为字段。
使用自动关闭连接、语句和结果集(如果有的话)的 try-with-resources。即使在异常或返回的情况下。
String sql = "insert into tracking_register_db(Name,Surname,Phone,Age,Adress,Email,"
+ "Temp,Symptoms,Exsposed) values(?,?,?,?,?,?,?,?,?)"
try {
Class.forName("com.mysql.cj.jdbc.Driver");
try (Connection sqlConn = DriverManager.getConnection(data, user, password);
PreparedStatement pst = sqlConn.prepareStatement(sql)) {
pst.setString(1, JT1.getText());
pst.setString(2, JT2.getText());
pst.setString(3, JT3.getText());
pst.setString(4, JT4.getText());
pst.setString(5, JT5.getText());
pst.setString(6, JT6.getText());
pst.setString(7, JT7.getText());
pst.setString(8, JT8.getText());
pst.setString(9, JT9.getText());
pst.executeUpdate();
JOptionPane.showMessageDialog(this, "Record added",
JOptionPane.INFORMATION_MESSAGE);
upDateDB();
} // Closes sqlConn and pst
} catch (ClassNotFoundException | SQLException ex) {
Logger.getLogger(Registration.class.getName()).log(Level.SEVERE, "No record added", ex);
JOptionPane.showMessageDialog(this, "No record added: " + ex.getMessage(),
JOptionPane.ERROR_MESSAGE);
}
Exposed 中的拼写错误？
关于java - 尝试将我的 java netbeans j 表注册表的数据放入 MySQL 时，我不断出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/70149747/