通过java将数据输入H2数据库时出现SQL异常

Posted 2023-04-01

【中文标题】通过java将数据输入H2数据库时出现SQL异常

【英文标题】：Getting SQL exception while entering data into H2 database through java

【发布时间】：2017-03-11 07:08:23

【问题描述】：

公共类 RegisterDao

private static final String DB_DRIVER = "org.h2.Driver";
private static final String DB_CONNECTION = "jdbc:h2:~/test";
private static final String DB_USER = "admin";
private static final String DB_PASSWORD = "admin";

Connection dbConnection = null;
PreparedStatement pstmt = null;
public void forRegister(String name,int age,String address,String password,String email,String uuid)
    try 
        Class.forName(DB_DRIVER);
        System.out.println("Connecting to a selected database...");
     catch (ClassNotFoundException e) 
        System.out.println(e.getMessage());
    
    try 
        dbConnection = DriverManager.getConnection(DB_CONNECTION, DB_USER,
                DB_PASSWORD);
    System.out.println("Connected database successfully...");
    //Statement stat = dbConnection.createStatement();
    //ResultSet rs;
    if (dbConnection != null)
        System.out.println("starting entering data");
        pstmt=dbConnection.prepareStatement("insert into registrationtable (?,?,?,?,?,?)");

        pstmt.setString(1, name);
        pstmt.setInt(2, age);
        pstmt.setString(3, address);
        pstmt.setString(4, password);
        pstmt.setString(5, email);
        pstmt.setString(6, uuid);

        pstmt.executeUpdate();
        System.out.println("details are added");
    
     catch (SQLException e) 
        // TODO Auto-generated catch block
        e.printStackTrace();
      finally
        //finally block used to close resources
        try
           if(dbConnection!=null)
               dbConnection.close();
        catch(SQLException se)
           se.printStackTrace();
        //end finally try
     //end try

我得到的异常： org.h2.jdbc.JdbcSQLException：SQL 语句中的语法错误“INSERT INTO REGISTRATIONTABLE (?[*],?,?,?,?,?)”；预期的“标识符”； SQL语句：insert intoregistrationtable(?,?,?,?,?,?) [42001-193]

请帮忙。提前致谢。

【问题讨论】：

插入语句的语法如下：h2database.com/html/grammar.html#insert。你的不尊重这种语法。

【参考方案1】：

试试这个 sql：

 insert into registrationtable (name, age, address, password, email, uuid) values (?, ?, ?, ?, ?, ?)"

其中名称、年龄、地址、密码、电子邮件、uuid 是表字段名称，因此您可能必须重命名它们以适合您的表架构。