java+SQL server2008 学生信息管理系统
1、StudetManage类（主界面）
package com.sms3;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class StudentManage extends JFrame implements ActionListener
{
/**
* @param args
*/
public static void main(String[] args)
{
// TODO Auto-generated method stub
new StudentManage();
}
//========面板控件
private JLabel queryLab = null;
private JTextField queryTxt = null;
private JButton queryBtn = null;
private JButton allBtn = null;
private JTable resultTb = null;
private JScrollPane jsp = null;
private JButton addBtn = null;
private JButton deleteBtn = null;
private JButton updateBtn = null;
private JPanel top = null;
private JPanel bottom = null;
//========
private StuModel sm = null;
//构造函数
public StudentManage()
{
/***************************初始化面板控件***********************/
//========查询栏
queryLab = new JLabel("请输入姓名:");
queryTxt = new JTextField(10);
queryBtn = new JButton("查询");
allBtn = new JButton("全部");
//......添加查询栏监听
queryBtn.addActionListener(this);
queryBtn.setActionCommand("query");
allBtn.addActionListener(this);
allBtn.setActionCommand("all");
//========增删改栏
addBtn = new JButton("添加");
deleteBtn = new JButton("删除");
updateBtn = new JButton("修改");
//......添加增删改栏监听
addBtn.addActionListener(this);
addBtn.setActionCommand("add");
deleteBtn.addActionListener(this);
deleteBtn.setActionCommand("delete");
updateBtn.addActionListener(this);
updateBtn.setActionCommand("update");
//========创建窗口整体布局
//......顶层查询栏
top = new JPanel();
top.add(queryLab);
top.add(queryTxt);
top.add(queryBtn);
top.add(allBtn);
//......底层增删改栏
bottom = new JPanel();
bottom.add(addBtn);
bottom.add(deleteBtn);
bottom.add(updateBtn);
//......中间层显示栏
sm = new StuModel();
String sql = "select * from stu";
sm.queryStu(sql, null);
resultTb = new JTable(sm);
jsp = new JScrollPane(resultTb);
//......构建整体布局
this.add(top,BorderLayout.NORTH);
this.add(jsp,BorderLayout.CENTER);
this.add(bottom,BorderLayout.SOUTH);
//========设置窗口属性
this.setSize(400, 300);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
this.setResizable(false);
}
//监听
@Override
public void actionPerformed(ActionEvent e)
{
// TODO Auto-generated method stub
if(e.getActionCommand().equals("query")) {
/*********************查询***********************/
//========获取输入学生的姓名
String name = queryTxt.getText().trim();
if(name.length() != 0) {
//========姓名输入有效时，执行查询
//......定义参数
String sql = "select * from stu where stuName=?";
String []paras = {name};
//......更新模型
jtableUpdate(sql, paras);
} else {
//========姓名为空时，设置提醒
JOptionPane.showMessageDialog(this, "姓名输入不能为空");
}
} else if(e.getActionCommand().equals("add")) {
/*********************添加***********************/
new StuAddDialog(this, "添加学生信息", true);
String sql = "select * from stu";
jtableUpdate(sql, null);
} else if(e.getActionCommand().equals("all")) {
/*********************全部显示***********************/
String sql = "select * from stu";
jtableUpdate(sql, null);
} else if(e.getActionCommand().equals("delete")) {
/*********************删除***********************/
//========获取选择行号
int rowNum = this.resultTb.getSelectedRow();
if(rowNum == -1) {
JOptionPane.showMessageDialog(this, "请选择一行");
return ;
}
//========获取学生ID号
String stuId = (String)sm.getValueAt(rowNum, 0);
//========删除学生
String sql = "delete from stu where stuId=?";
String []paras = {stuId};
StuModel tmp = new StuModel();
tmp.cudStu(sql, paras);
//========更新模型
sql = "select * from stu";
jtableUpdate(sql, null);
} else if(e.getActionCommand().equals("update")) {
/*********************修改***********************/
//========获取选择行号
int rowNum = this.resultTb.getSelectedRow();
if(rowNum == -1) {
JOptionPane.showMessageDialog(this, "请选择一行");
return ;
}
new StuUpdateDialog(this, "修改学生信息", true, sm, rowNum);
String sql = "select * from stu";
jtableUpdate(sql, null);
}
}
//========更新JTable内数据
public void jtableUpdate(String sql, String[] paras)
{
//......创建模型
sm = new StuModel();
sm.queryStu(sql, paras);
//......更新显示
resultTb.setModel(sm);
}
}
2、StuModel类（学生数据库模型）
package com.sms3;
import java.sql.ResultSet;
import java.util.Vector;
import javax.swing.table.AbstractTableModel;
public class StuModel extends AbstractTableModel{
private Vector columnNames;
private Vector rowDates;
//
public StuModel()
{
String sql = "select * from stu";
String []paras = {};
}
//========增删改学生
public boolean cudStu(String sql, String []paras)
{
return new SqlHelper().cudExecute(sql, paras);
}
//========查询学生
public void queryStu(String sql, String []paras)
{
SqlHelper sqlHelper = null;
//========初始化JTable信息
columnNames = new Vector();
rowDates = new Vector();
columnNames.add("学号"); columnNames.add("名字");
columnNames.add("性别"); columnNames.add("年龄");
columnNames.add("籍贯"); columnNames.add("系别");
try {
sqlHelper = new SqlHelper();
ResultSet rs = sqlHelper.queryExecute(sql, paras);
while(rs.next()) {
Vector row = new Vector();
row.add(rs.getString(1));
row.add(rs.getString(2));
row.add(rs.getString(3));
row.add(rs.getString(4));
row.add(rs.getString(5));
row.add(rs.getString(6));
rowDates.add(row);
}
} catch (Exception e) {
// TODO: handle exception
} finally {
sqlHelper.close();
}
}
@Override
public int getColumnCount() {
// TODO Auto-generated method stub
return this.columnNames.size();
}
@Override
public int getRowCount() {
// TODO Auto-generated method stub
return this.rowDates.size();
}
@Override
public Object getValueAt(int row, int col) {
// TODO Auto-generated method stub
if(!rowDates.isEmpty())
return ((Vector)this.rowDates.get(row)).get(col);
else
return null;
}
@Override
public String getColumnName(int column) {
// TODO Auto-generated method stub
return (String)this.columnNames.get(column);
}
}
3、StuAddDialog类（添加学生信息子界面）
package com.sms3;
import java.awt.BorderLayout;
import java.awt.Dialog;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class StuAddDialog extends JDialog implements ActionListener{
//=========面板控件
//......左侧标题栏
private JLabel idLab,nameLab,sexLab,ageLab,jgLab,deptLab;
//......右侧信息选择填写栏
private JTextField idTxt,nameTxt,sexTxt,ageTxt,jgTxt,deptTxt;
//......添加和取消按钮
private JButton addBtn,cancelBtn;
//......布局控件
private JPanel left,center,bottom;
//构造函数
public StuAddDialog(Frame owner, String title, boolean modal)
{
//========重写父类方法
super(owner, title, modal);
//========左侧标签栏
idLab = new JLabel("学号: ");
nameLab = new JLabel("姓名: ");
sexLab = new JLabel("性别: ");
ageLab = new JLabel("年龄: ");
jgLab = new JLabel("籍贯: ");
deptLab = new JLabel("系别: ");
//========右侧信息填写栏
idTxt = new JTextField();
nameTxt = new JTextField();
sexTxt = new JTextField();
ageTxt = new JTextField();
jgTxt = new JTextField();
deptTxt = new JTextField();
//========添加和取消按钮
addBtn = new JButton("添加");
cancelBtn = new JButton("取消");
//......添加监听
addBtn.addActionListener(this);
addBtn.setActionCommand("add");
cancelBtn.addActionListener(this);
cancelBtn.setActionCommand("cancel");
//========创建布局
//......创建左边栏
left = new JPanel();
left.setLayout(new GridLayout(6, 1));
left.add(idLab); left.add(nameLab);
left.add(sexLab); left.add(ageLab);
left.add(jgLab); left.add(deptLab);
//......创建右边栏
center = new JPanel();
center.setLayout(new GridLayout(6, 1));
center.add(idTxt); center.add(nameTxt);
center.add(sexTxt); center.add(ageTxt);
center.add(jgTxt); center.add(deptTxt);
//========底层添加和取消按钮
bottom = new JPanel();
bottom.add(addBtn);
bottom.add(cancelBtn);
//========整体布局
this.add(left,BorderLayout.WEST);
this.add(center,BorderLayout.CENTER);
this.add(bottom,BorderLayout.SOUTH);
//========设置窗口属性
this.setSize(300, 250);
this.setResizable(false);
this.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e)
{
// TODO Auto-generated method stub
if(e.getActionCommand().equals("add")) {
/***********************添加学生信息**************************/
StuModel tmp = new StuModel();
String sql = "insert into stu values(?,?,?,?,?,?)";
String []paras = {idTxt.getText(),nameTxt.getText(),sexTxt.getText(),
ageTxt.getText(),jgTxt.getText(),deptTxt.getText()};
if(!tmp.cudStu(sql, paras))
JOptionPane.showMessageDialog(this, "添加学生信息失败");
//========关闭窗口
this.dispose();
} else if(e.getActionCommand().equals("cancel")) {
//========关闭窗口
this.dispose();
}
}
}
4、StuUpdateDialog类（修改学生信息子界面）
package com.sms3;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.table.AbstractTableModel;
public class StuUpdateDialog extends JDialog implements ActionListener{
//=========面板控件
//......左侧标题栏
private JLabel idLab,nameLab,sexLab,ageLab,jgLab,deptLab;
//......右侧信息选择填写栏
private JTextField idTxt,nameTxt,sexTxt,ageTxt,jgTxt,deptTxt;
//......添加和取消按钮
private JButton addBtn,cancelBtn;
//......布局控件
private JPanel left,center,bottom;
//构造函数
public StuUpdateDialog(Frame owner, String title, boolean modal, StuModel sm, int rowNum)
{
//========重写父类方法
super(owner, title, modal);
//========左侧标签栏
idLab = new JLabel("学号: ");
nameLab = new JLabel("姓名: ");
sexLab = new JLabel("性别: ");
ageLab = new JLabel("年龄: ");
jgLab = new JLabel("籍贯: ");
deptLab = new JLabel("系别: ");
//========右侧信息填写栏
idTxt = new JTextField();
idTxt.setText((String)sm.getValueAt(rowNum, 0));
idTxt.setEditable(false);
nameTxt = new JTextField();
nameTxt.setText((String)sm.getValueAt(rowNum, 1));
sexTxt = new JTextField();
sexTxt.setText((String)sm.getValueAt(rowNum, 2));
ageTxt = new JTextField();
ageTxt.setText((String)sm.getValueAt(rowNum, 3));
jgTxt = new JTextField();
jgTxt.setText((String)sm.getValueAt(rowNum, 4));
deptTxt = new JTextField();
deptTxt.setText((String)sm.getValueAt(rowNum, 5));
//========添加和取消按钮
addBtn = new JButton("修改");
cancelBtn = new JButton("取消");
//......添加监听
addBtn.addActionListener(this);
addBtn.setActionCommand("update");
cancelBtn.addActionListener(this);
cancelBtn.setActionCommand("cancel");
//========创建布局
//......创建左边栏
left = new JPanel();
left.setLayout(new GridLayout(6, 1));
left.add(idLab); left.add(nameLab);
left.add(sexLab); left.add(ageLab);
left.add(jgLab); left.add(deptLab);
//......创建右边栏
center = new JPanel();
center.setLayout(new GridLayout(6, 1));
center.add(idTxt); center.add(nameTxt);
center.add(sexTxt); center.add(ageTxt);
center.add(jgTxt); center.add(deptTxt);
//========底层添加和取消按钮
bottom = new JPanel();
bottom.add(addBtn);
bottom.add(cancelBtn);
//========整体布局
this.add(left,BorderLayout.WEST);
this.add(center,BorderLayout.CENTER);
this.add(bottom,BorderLayout.SOUTH);
//========设置窗口属性
this.setSize(300, 250);
this.setResizable(false);
this.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(e.getActionCommand().equals("update")) {
/***********************修改学生信息**************************/
StuModel tmp = new StuModel();
String sql = "update stu set stuName=?,stuSex=?,stuAge=?,stuJg=?,stuDept=? where stuId=?";
String []paras = {nameTxt.getText(),sexTxt.getText(),ageTxt.getText(),
jgTxt.getText(),deptTxt.getText(),idTxt.getText()};
if(!tmp.cudStu(sql, paras))
JOptionPane.showMessageDialog(this, "修改学生信息失败");
//========关闭窗口
this.dispose();
} else if(e.getActionCommand().equals("cancel")) {
//========关闭窗口
this.dispose();
}
}
}
5、SqlHelper类（最底层数据库类）
package com.sms3;
import java.sql.*;
public class SqlHelper {
//========数据库
private Connection ct = null;
private PreparedStatement ps = null;
private ResultSet rs = null;
private String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
private String url = "jdbc:sqlserver://127.0.0.1:1433;database=studentMan";
private String user = "sa";
private String passwd = "****";
//========查询
public ResultSet queryExecute(String sql, String []paras)
{
try {
//========1、加载驱动
Class.forName(driver);
//========2、连接
ct = DriverManager.getConnection(url, user, passwd);
//========3、创建PreparedStatement
ps = ct.prepareStatement(sql);
//========4、给问号赋值
if(paras != null) {
for(int i = 0; i < paras.length; i++) {
ps.setString(i + 1, paras[i]);
}
}
//========5、执行
rs = ps.executeQuery();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
} finally {
//this.close();
}
//========返回值
return rs;
}
//========增删改
public boolean cudExecute(String sql, String []paras)
{
boolean b = true;
try {
//========1、加载驱动
Class.forName(driver);
//========2、连接
ct = DriverManager.getConnection(url, user, passwd);
//========3、创建PreparedStatement
ps = ct.prepareStatement(sql);
//========4、给问号赋值
for(int i = 0; i < paras.length; i++) {
ps.setString(i + 1, paras[i]);
}
//========5、执行
if(ps.executeUpdate() != 1) b = false;
} catch (Exception e) {
// TODO: handle exception
b = false;
e.printStackTrace();
} finally {
this.close();
}
//========返回值
return b;
}
//========关闭资源
public void close()
{
try {
if(rs!=null) rs.close();
if(ps!=null) ps.close();
if(ct!=null) ct.close();
} catch (Exception e2) {
// TODO: handle exception
e2.printStackTrace();
}
}
}
主界面
添加学生信息界面
修改学生信息界面
