java Swing 界面化查询数据库表

两天从0基础写的。没有按钮对话框功能，只是简单的实现。

当然代码上有很多需要优化的，基本需要重写哈哈哈。但是我怕以后有需要所以还是存一下好了。《把RS结果集，放vector里面，用vector构造JTable》

 package meterSqllitedataFinal;

 import java.awt.Dimension;
 import java.util.Vector;
 import javax.swing.JButton;
 import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JScrollPane;
 import javax.swing.JTable;

 public class mainn extends JFrame {
     //private Vector rowData, columnName;
     private JTable jt = null;
     private JScrollPane jsp = null;
     private JButton jb = null;

     public static void main(String[] args) {
         // 显示应用 GUI
         mainn miann1 = new mainn();
     }

     public mainn()
     {
         sqlitedata a = new sqlitedata();
          //初始化JTable
         a.mainjj();

         jt = new JTable(a.rowData, a.columnName);  

         jsp = new JScrollPane(jt);  

         this.add(jsp);
         this.setTitle("by:Zing庄     SqlliteConnect");
         this.setSize(460, 200);  //这是大小
         this.setLocation(300, 200);  //这是位置
         this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         this.setResizable(true);  //尺寸是否可变
         this.setVisible(true);  //显示与隐藏
     }

 }

 package meterSqllitedataFinal;

 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.ResultSet;
 import java.sql.ResultSetMetaData;
 import java.sql.Statement;
 import java.util.Vector;

 import javax.swing.JScrollPane;
 import javax.swing.JTable;

 import org.omg.CORBA.PRIVATE_MEMBER;

 public class sqlitedata {
     public  Vector rowData, columnName;  

     public void mainjj() {
         Connection c = null;
         Statement stmt = null;

         rowData = new Vector();
         try {
             Class.forName("org.sqlite.JDBC");
             c = DriverManager.getConnection("jdbc:sqlite:d:\\web\\data.data\\");//tim.data
             c.setAutoCommit(false);
             System.out.println("Opened database successfully");

             stmt = c.createStatement();
             ResultSet rs = stmt.executeQuery("SELECT * FROM Meter;");//COMPANY
             ResultSetMetaData data = rs.getMetaData();

             columnName = new Vector();
             System.out.println("dd");

             for (int i = 1; i <= data.getColumnCount(); i++) {
                 columnName.add(data.getColumnName(i));//这里是列名
             }

             while (rs.next()) {

                     Vector line1 = new Vector();
                     for (int k = 1; k <= data.getColumnCount(); k++) {

                         line1.add(rs.getString(data.getColumnName(k)));//这里是添加行数据
                     }
                     rowData.add(line1);
                 }

             rs.close();
             stmt.close();
             c.close();
         } catch (Exception e) {
             System.err.println(e.getClass().getName() + ": " + e.getMessage());
             System.exit(0);
         }
         System.out.println("Operation done successfully");

     }

 }

需要导入的驱动

项目需要导入sql驱动。build Path →Configure Build Path →Add External JARs

http://blog.csdn.net/qq_21478795/article/details/51579181

这个是借鉴的地方。

https://zhidao.baidu.com/question/2202449700556627748.html

这个借鉴如何传输进数据

http://blog.csdn.net/a412588063/article/details/21242887

这没借鉴过，但是挺详细的。

http://www.runoob.com/sqlite/sqlite-java.html

这里是sqllite驱动下载