java - 从 jTextField 到表 sql 的查询插入错误

Question

我在添加 4 个 JTextField 中的数据以将它们插入到表 sql 中时遇到问题 但它给了我关于查询的错误

这是代码

try {
    Class.forName("com.mysql.jdbc.Driver").newInstance();

    String connectionUrl = "jdbc:mysql://localhost:3306/admin";
    String connectionUser = "root";
    String connectionPassword = "123456";
    conn = DriverManager.getConnection(connectionUrl, connectionUser, connectionPassword);
    stmt = conn.createStatement();
    stmt.executeUpdate("INSERT INTO user(id, nom, login, mdp, statut) VALUES ('','"+jTextField2.getText()+ "','" +jTextField4.getText()+"','"+jTextField3.getText()+"','"+jPasswordField1.getText()+"'");

}catch (ClassNotFoundException ex) {
    Logger.getLogger(frame.class.getName()).log(Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
    Logger.getLogger(frame.class.getName()).log(Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
    Logger.getLogger(frame.class.getName()).log(Level.SEVERE, null, ex);
} catch (SQLException ex) {
    Logger.getLogger(frame.class.getName()).log(Level.SEVERE, null, ex);
}

这是错误:

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 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 '' at line 1

Answer 1

查询中的 VALUES() 缺少结束括号。

 stmt.executeUpdate("INSERT INTO user(id, nom, login, mdp, statut) VALUES ('','"+jTextField2.getText()+ "','" +jTextField4.getText()+"','"+jTextField3.getText()+"','"+jPasswordField1.getText()+"')");