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 {
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;
private String s;

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.TYPE_FORWARD_ONLY);
} catch (Exception ex) {
// TODO: handle exception
System.out.println("连接错误");
}
}

public static void main(String[] args) {
// TODO Auto-generated method stub
data date = 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 s 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 s 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 S";
filltable(str);
}

private void filltable(String str) {
// TODO Auto-generated method stub
try {
for(int x=0;x<body.length;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(s);
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("AEG");
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 {
String nsno = (String)t[1].getText();
String nName = (String)t[3].getText();
int nsex = Integer.parseInt(t[5].getText());
int nage = Integer.parseInt(t[7].getText());
String ndept = (String)t[9].getText();
String str = "insert into s values('"+nsno+"','"+nName+"','"+nsex+"','"+nage+"','"+ndept+"',)";
st.executeUpdate(str);
JOptionPane.showMessageDialog(null, "数据已经成功插入！");
} catch (Exception ex) {
// TODO: handle exception
JOptionPane.showMessageDialog(null, "数据插入失败！");
}
}

} catch (Exception ex) {
// TODO: handle exception

}
}

}

运行后程序显示出窗体，但eclipse显示连接错误。