import java.lang.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
//////////////////////////////////////////////
//主类
public class STU {
public STU() {
try {
jbInit();
} catch (Exception ex) {
ex.printStackTrace();
}
}
public static void main(String args[]) {
new Frm_Main();
}
private void jbInit() throws Exception {
}
}
//主框架，数据库
class Frm_Main implements ActionListener { //throws IOException
public static final int EXIT_ON_CLOSE = 0;
public JFrame frame;
public Container c;
public JMenuBar menuBar;
public JMenu mainMenu1;
public JMenu mainMenu2;
public JMenu mainMenu3;
public JMenuItem subMenu1[] = new JMenuItem[5];
public JMenuItem subMenu2[] = new JMenuItem[7];
public JMenuItem subMenu3[] = new JMenuItem[2];
JButton toolBarButton[] = new JButton[8];
public JToolBar toolBar;
//////////////////////////////////////////////
String strTip[] = {"姓名查询...", "添加信息...",
"删除...", "修改...", "修改确认...",
"添加确认...", "删除确认...", "关于产品信息:)"};
//////////////////////////////////////////////
// String id = new String();
String name = new String();
String sex = new String();
String age = new String();
String classid = new String();
String department = new String();
String grade = new String();
//////////////////////////////////////////////
Connection con;
ResultSet rs;
Statement st;
// ResultSetMetaData rsmd;
// Vector columnHeads=new Vector();
// Vector rows = new Vector();
// Vector currentRow=new Vector();
///////////////////////////////////////////////
public JLabel classidL = new JLabel("班级");
public JLabel nameL = new JLabel("姓名");
public JLabel sexL = new JLabel("性别");
public JLabel ageL = new JLabel("年龄");
public JLabel departmentL = new JLabel("系别");
public JLabel gradeL = new JLabel("成绩");
public JLabel tittleLabel = new JLabel();
//////////////////////////////////////////////
public JTextField classidT = new JTextField();
public JTextField nameT = new JTextField();
public JTextField sexT = new JTextField();
public JTextField ageT = new JTextField();
public JTextField departmentT = new JTextField();
public JTextField gradeT = new JTextField();
public JTextArea textT = new JTextArea();
//////////////////////////////////////////////
//////////////////////////////////////////////
public Frm_Main() {
/////////////////////////////////////////////////
frame = new JFrame("简易学生成绩管理系统V1.0");
c = frame.getContentPane();
c.setLayout(null);
menuBar = new JMenuBar();
toolBar = new JToolBar();
toolBar.setFloatable(false);
frame.setJMenuBar(menuBar);
frame.setResizable(false);
////////////////////////////////////////////////
mainMenu1 = new JMenu("管理");
String str1[] = {"添加", "删除", "查询", " ", "关闭"};
for (int i = 0; i < 5; i++) {
if (i == 3) {
mainMenu1.addSeparator();
} else {
subMenu1[i] = new JMenuItem(str1[i]);
subMenu1[i].addActionListener(this);
mainMenu1.add(subMenu1[i]);
}
}
menuBar.add(mainMenu1);
/////////////////////////////////////////////////
mainMenu2 = new JMenu("操作");
String str2[] = {"查询", "添加", "删除", "修改",
"提交修改", "提交添加", "提交删除"};
for (int i = 0; i < 7; i++) {
subMenu2[i] = new JMenuItem(str2[i]);
subMenu2[i].addActionListener(this);
mainMenu2.add(subMenu2[i]);
}
menuBar.add(mainMenu2);
/////////////////////////////////////////////////
mainMenu3 = new JMenu("集体查询");
String str3[] = {"按班级...", "按系别..."};
for (int i = 0; i < 2; i++) {
subMenu3[i] = new JMenuItem(str3[i]);
subMenu3[i].addActionListener(this);
mainMenu3.add(subMenu3[i]);
}
menuBar.add(mainMenu3);
////////////////////////////////////////////////
String strToolBar[] = {"查询", "添加", "删除", "修改", "提交修改",
"提交添加", "提交删除", "关于"};
for (int i = 0; i < 8; i++) {
toolBarButton[i] = new JButton(strToolBar[i]);
toolBarButton[i].setToolTipText(strTip[i]);
toolBarButton[i].addActionListener(this);
toolBar.add(toolBarButton[i]);
}
toolBar.setLocation(0, 0);
toolBar.setSize(400, 30);
c.add(toolBar);
////////////////////////////////////////////////
classidL.setLocation(35, 40);
classidL.setSize(40, 20);
//classidL.setFont(new Font("",Font.BOLD,12));
c.add(classidL);
classidT.setLocation(90, 40);
classidT.setSize(200, 20);
//classidT.setEnabled(false);
c.add(classidT);
nameL.setLocation(35, 70);
nameL.setSize(40, 20);
c.add(nameL);
nameT.setLocation(90, 70);
nameT.setSize(200, 20);
c.add(nameT);
sexL.setLocation(35, 100);
sexL.setSize(40, 20);
c.add(sexL);
sexT.setLocation(90, 100);
sexT.setSize(200, 20);
c.add(sexT);
ageL.setLocation(35, 130);
ageL.setSize(40, 20);
c.add(ageL);
ageT.setLocation(90, 130);
ageT.setSize(200, 20);
c.add(ageT);
departmentL.setLocation(35, 160);
departmentL.setSize(40, 20);
c.add(departmentL);
departmentT.setLocation(90, 160);
departmentT.setSize(200, 20);
c.add(departmentT);
gradeL.setLocation(35, 190);
gradeL.setSize(40, 20);
c.add(gradeL);
gradeT.setLocation(90, 190);
gradeT.setSize(200, 20);
c.add(gradeT);
/////////////////////////////////////////////////
tittleLabel.setText("----------集体查询结果--------");
tittleLabel.setSize(300, 20);
tittleLabel.setLocation(10, 210);
c.add(tittleLabel);
////////////////////////////////////////////
textT.setSize(400, 300);
textT.setLocation(10, 240);
c.add(textT, 14);
///////////////////////////////////////////////
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(500, 650);
frame.setLocation(200, 200);
frame.setVisible(true);
conDB();
}
//以上是框架设计
//JDBC
public void conDB() {
try {
Class.forName("org.gjt.mm.mysql.Driver");
} catch (ClassNotFoundException e) {
JOptionPane.showMessageDialog(null, "数据库错误");
}
try {
//con = DriverManager.getConnection("jdbc:odbc:jettang", "sa", "");
//st = con.createStatement();
String URL = "jdbc:mysql://localhost/test?user=root&password=aaa";
//Class.forName(driver).newInstance();
con = DriverManager.getConnection(URL);
//conn.setAutoCommit(false);
st = con.createStatement();
} catch (SQLException e) {
JOptionPane.showMessageDialog(null, "数据库连接失败");
}
}
//关闭连接
public void closeDB() {
try {
st.close();
con.close();
} catch (SQLException e) {
JOptionPane.showMessageDialog(null, "数据库关闭失败");
}
}
//事件响应
public void actionPerformed(ActionEvent e) {
//////////////////////////////////////////////
if (e.getSource() == toolBarButton[7]) {
JOptionPane.showMessageDialog(null, "当前版本1.0，操作帮助请看用户使用手册");
}
/////////////////////////////////////////////查询(按姓名)
if (e.getSource() == subMenu2[0] || e.getSource() == toolBarButton[0] ||
e.getSource() == subMenu1[2]) {
String idid = JOptionPane.showInputDialog("请输入学生姓名");
if (idid.trim() != "") {
String strSQL = "select * from stuinfo where name ='" + idid +
"'";
try {
rs = st.executeQuery(strSQL);
int count = 0;
while (rs.next()) {
classid = rs.getString("classid");
name = rs.getString("name");
department = rs.getString("department");
sex = rs.getString("sex");
age = rs.getString("age");
grade = rs.getString("grade");
++count;
}
if (count == 0) {
JOptionPane.showMessageDialog(null, "无此信息");
} else {
classidT.setText(classid);
nameT.setText(name);
sexT.setText(sex);
ageT.setText(age);
gradeT.setText(grade);
departmentT.setText(department);
}
} catch (Exception ex) {
JOptionPane.showMessageDialog(null, "查询失败");
}
}
}
/////////////////////////////////////////////关闭
if (e.getSource() == subMenu1[4]) {
frame.dispose();
closeDB();
}
/////////////////////////////////////////////添加
if (e.getSource() == subMenu1[0] || e.getSource() == subMenu2[1] ||
e.getSource() == toolBarButton[1]) {
JOptionPane.showMessageDialog(null, "请输入你添加的信息再点击提交添加键");
classidT.setEnabled(true);
classidT.se
