java - 如何在Java中从Ms Access数据库显示jLabel中的行？

Question

目前，我在将 MS Access 中的行值显示到 Java jLabel 时遇到问题。

我有一个名为 Table 的 Ms Access 数据库，有 3 行，我只想在 java jlabels 中显示行，请参阅图片，但它显示第一行和我目前很困惑谢谢!

try {

        resultset.first();


        String name = "Name: ";
        String dmg = "Damage: ";
        String type = "Ammo Type: ";


        //row1
        weapon1.setText(name+resultset.getString("weapons"));
        weapon1dmg.setText(dmg+resultset.getString("weaponDMG"));
        weapon1type.setText(type+resultset.getString("weaponAmmoType"));

        //row2
        weapon2.setText(name+resultset.getString("weapons"));
        weapon2dmg.setText(dmg+resultset.getString("weaponDMG"));
        weapon2type.setText(type+resultset.getString("weaponAmmoType"));

        //row3
        weapon3.setText(name+resultset.getString("weapons"));
        weapon3dmg.setText(dmg+resultset.getString("weaponDMG"));
        weapon3type.setText(type+resultset.getString("weaponAmmoType"));

    }

Answer 1

您需要循环遍历结果集，否则您将一次又一次地读取第一行。

try {
     String name = "Name: ";
     String dmg = "Damage: ";
     String type = "Ammo Type: "; 
     int count = 0;

    while(resultset.next){
        count++

       if(count == 1){
            weapon1.setText(name+resultset.getString("weapons"));
            weapon1dmg.setText(dmg+resultset.getString("weaponDMG"));
           weapon1type.setText(type+resultset.getString("weaponAmmoType"));
      }else if(count == 2){
            weapon2.setText(name+resultset.getString("weapons"));
            weapon2dmg.setText(dmg+resultset.getString("weaponDMG"));
            weapon2type.setText(type+resultset.getString("weaponAmmoType"));

      }else if(count == 3)
            weapon3.setText(name+resultset.getString("weapons"));
            weapon3dmg.setText(dmg+resultset.getString("weaponDMG"));
            weapon3type.setText(type+resultset.getString("weaponAmmoType"));
    }

应该有更好的方法来做到这一点，但我无法 Access 您的其余代码来了解如何简化它。