java教程《eclipse链接sql server数据库实现增删改查功能代码分享》

//java脚本代码eclipse（版本：jre1.8需导入sqljdbc4.jar包）


package ang;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.*;
//import java.util.Vector;
//import java.awt.*;
import javax.swing.*;

public class data extends JFrame implements ActionListener {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    JButton add, select, del, update;
    JTable table;
    Object body[][] = new Object[50][5];
    String fields[] = { "编号", "姓名", "性别", "年龄", "地址" };
    Connection conn;
    Statement st;
    ResultSet rs;
    JTabbedPane tp;

    public data() {
        super("数据库操作");
        this.setSize(400, 300);
        this.setLocation(400, 300);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel ps = new JPanel();

        add = new JButton("添加");
        select = new JButton("查询");
        update = new JButton("更新");
        del = new JButton("删除");

        add.addActionListener(this);
        select.addActionListener(this);
        update.addActionListener(this);
        del.addActionListener(this);

        ps.add(add);
        ps.add(select);
        ps.add(update);
        ps.add(del);
        
        this.connection();
        table = new JTable(body, fields);
        tp = new JTabbedPane();
        tp.add("S表", new JScrollPane(table));
        this.getContentPane().add(tp, "Center");
        this.getContentPane().add(ps, "South");
        
        this.setVisible(true);
        
        
    }

    public void connection() {
        try {
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;DatabaseName = studb","sa","svse");
            st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
        } catch (Exception ex) {
            // TODO: handle exception
            ex.printStackTrace();
            System.out.println("连接错误：" + ex.getMessage());
            //System.out.println("连接错误");
        }
    }

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        data dt = new data();
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub
        if (e.getSource() == add) {
            add();
        }
        if (e.getSource() == select) {
            select();
        }
        if (e.getSource() == update) {
            update();
        }
        if (e.getSource() == del) {
            del();
        }
    }

    private void del() {
        // TODO Auto-generated method stub
        try {
            int row = table.getSelectedRow();
            String str = "delete stuacce where SNO = '" + body[row][0] + "'";
            st.executeUpdate(str);
            JOptionPane.showMessageDialog(null, "数据已成功删除");
            this.select();
        } catch (SQLException ex) {
            JOptionPane.showMessageDialog(null, "删除数据错误！");
        }
    }

    private void update() {
        // TODO Auto-generated method stub
        try {
            int row = table.getSelectedRow();
            JTextField t[] = new JTextField[8];
            t[0] = new JTextField("输入姓名：");
            t[0].setEditable(false);
            t[1] = new JTextField();
            t[1].setText((String) body[row][1]);
            t[2] = new JTextField("输入性别：");
            t[2].setEditable(false);
            t[3] = new JTextField();
            t[3].setText((String) body[row][2]);
            t[4] = new JTextField("输入年龄：");
            t[4].setEditable(false);
            t[5] = new JTextField();
            t[5].setText((String) body[row][3]);
            t[6] = new JTextField("输入专业：");
            t[6].setEditable(false);
            t[7] = new JTextField();
            t[7].setText((String) body[row][4]);
            String but[] = { "确定", "取消" };
            int go = JOptionPane.showOptionDialog(null, t, "修改信息", JOptionPane.YES_OPTION,
                    JOptionPane.INFORMATION_MESSAGE, null, but, but[0]);
            if (go == 0) {
                String nName = (String) t[1].getText();
                String nsex = (String) t[3].getText();
                int nage = Integer.parseInt(t[5].getText());
                String ndept = (String) t[7].getText();
                String str = "update stuacce set sname = '" + nName + "',sex='" + nsex + "',age='" + nage + "',dept='" + ndept
                        + "'where sno='" + body[row][0] + "' ";
                st.executeUpdate(str);
                JOptionPane.showMessageDialog(null, "修改数据成功！");
                this.select();
                st.executeUpdate(str);
                //JOptionPane.showMessageDialog(null, "数据已经成功插入！");
            }

        } catch (Exception ex) {
            // TODO: handle exception
            ex.printStackTrace();
            JOptionPane.showMessageDialog(null, "更新数据失败！");
        }
    }

    private void select() {
        // TODO Auto-generated method stub
        String str = "select * from stuacce";
        filltable(str);
    }

    private void filltable(String str) {
        // TODO Auto-generated method stub
        try {
            for(int x=0;x){
                body[x][0]=null;
                body[x][1]=null;
                body[x][2]=null;
                body[x][3]=null;
                body[x][4]=null;
            }
            int i = 0;
            rs = st.executeQuery(str);
            while(rs.next()){
                body[i][0]=rs.getString("SNO");
                body[i][1]=rs.getString("SNAME");
                body[i][2]=rs.getString("SEX");
                body[i][3]=rs.getString("AGE");
                body[i][4]=rs.getString("DEPT");
                i=i+1;
            }
            this.repaint(i);
        } catch (Exception ex) {
            // TODO: handle exception
            ex.printStackTrace();
        }
    }
    private void add() {
        // TODO Auto-generated method stub
        try {
            JTextField t[] = new JTextField[10];
            t[0] = new JTextField("输入学号：");
            t[0].setEditable(false);
            t[1] = new JTextField();
            t[2] = new JTextField("输入姓名：");
            t[2].setEditable(false);
            t[3] = new JTextField();
            t[4] = new JTextField("输入性别：");
            t[4].setEditable(false);
            t[5] = new JTextField();
            t[6] = new JTextField("输入年龄：");
            t[6].setEditable(false);
            t[7] = new JTextField();
            t[8] = new JTextField("输入专业：");
            t[8].setEditable(false);
            t[9] = new JTextField();
            String but[] = {"确定","取消"};
            int go = JOptionPane.showOptionDialog(null, t, "插入信息", JOptionPane.YES_OPTION, JOptionPane.INFORMATION_MESSAGE, null, but, but[0]);
            if(go == 0){
                try {
                    int nsno  = Integer.parseInt(t[1].getText());
                    String nName = (String)t[3].getText();
                    String nsex  = (String)t[5].getText();
                    int nage  = Integer.parseInt(t[7].getText());
                    String ndept  = (String)t[9].getText();
                    String str = "insert into stuacce values('"+nsno+"','"+nName+"','"+nsex+"','"+nage+"','"+ndept+"')";
                    st.executeUpdate(str);
                    JOptionPane.showMessageDialog(null, "数据已经成功插入！");
                    this.select();
                } catch (Exception ex) {
                    // TODO: handle exception
                    JOptionPane.showMessageDialog(null, "数据插入失败！");
                }
            }
            
        } catch (Exception ex) {
            // TODO: handle exception
            
        }
    }

}





sql server2008数据库脚本，需配置好端口设置1433及启用IP/TCP

use master
go

if exists(select * from sysdatabases where name = 'studb')
drop database studb
go

create database studb
go

use studb
go

if exists(select * from sysobjects where name = 'stuacce')
drop table stuacce
go

create table stuacce
(
sno int ,
sname varchar(8),
sex varchar(2),
age int,
dept varchar(50)
)
go

insert into stuacce values(1,'张三','男',18,'北京海淀区')
insert into stuacce values(2,'李斯','女',23,'北京朝阳区')


select * from stuacce

 

 

转载于:https://www.cnblogs.com/wm941142146/p/6101161.html