Java插入具有自动增量字段的表

Question

如何插入主键自增的表？ 我想使用准备好的语句，但我不断收到此错误 0<1... 我尝试使用声明并且它有效:S

public void insertDobavitelj (String dobavitelj,String naslov, String telefon) {

    String query = "INSERT INTO dobavitelj(ime,naslov,telefon) VALUES ('"+dobavitelj+"','"+naslov+"','"+telefon+"')";

    try {

          Class.forName(driver);
          conn = DriverManager.getConnection(url, user, password);

          Statement stmt = conn.createStatement();
          stmt.executeUpdate(query);

          /*stmt = conn.prepareStatement(query);
         // stmt.setInt(1, 0);
          stmt.setString(0, dobavitelj);
          stmt.setString(1, naslov);
          stmt.setString(2, telefon);


          if (stmt.executeUpdate() == 1) {
              JOptionPane.showMessageDialog(frame, "Uspesno ste dodali novega dobavitelja");
          }
         */


    }catch (ClassNotFoundException e) {
        JOptionPane.showMessageDialog(frame,"Class not found - insert dobavitelj" );
    }catch (SQLException exception) {
        JOptionPane.showMessageDialog(frame, "SQL Exception - insert dobavitelj");
           exception.printStackTrace();
    }

我尝试过:

"INSERT INTO dobavitelj(ime,naslov,telefon) VALUES ('?'.'?','?')"
"INSERT INTO dobavitelj(idDobavitelja,ime,naslov,telefon) VALUES (?.'?'.'?','?')"

谢谢好心人:)

Answer 1

您正在使用 stmt.setString(0, dobavitelj); 并以零作为索引，语句索引从 1 开始。

还将查询语法更改为:INSERT INTO dobavitelj(ime,naslov,telefon) VALUES ('?'.'?','?')