学生管理系统图形界面Java之欧阳计创编.docx
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- 上传时间:2023-06-29
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学生管理系统图形界面Java之欧阳计创编.docx
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学生管理系统图形界面Java之欧阳计创编
学生管理系统(图形界面)——Java
时间:
2021.02.11
创作:
欧阳计
源代码:
packageexp10;
importjavax.swing.JFrame;
publicclassMainClass{
/**
*@paramargs
*/
publicstaticvoidmain(String[]args){
//TODOAuto-generatedmethodstub
JFramemyFrame=newJFrame("学生成绩管理系统");
myFrame.setLocation(300,100);
//
myFrame.setContentPane(newLoginPane(myFrame));
myFrame.pack();
myFrame.setVisible(true);
}
}
packageexp10;
importjava.sql.Connection;
importjava.sql.DriverManager;
importjava.sql.ResultSet;
importjava.sql.SQLException;
importjava.sql.Statement;
publicclassDataBase{
Connectionconn=null;
publicConnectiongetConn(){
returnthis.conn;
}
publicvoidsetConn(Connectionconn){
this.conn=conn;
}
publicbooleangetConnection(){
Stringurl="jdbc:
mysql:
//localhost:
3306/ScoreManagement?
user=root&password=123";
try{
Class.forName("org.gjt.mm.mysql.Driver");
conn=DriverManager.getConnection(url);
returntrue;
}catch(SQLExceptione){
System.out.println(e.getMessage());
returnfalse;
}catch(ClassNotFoundExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
returnfalse;
}
}
publicResultSetexecuteQuery(Stringsql){
ResultSetrs=null;
Statementstmt=null;
if(conn==null){
this.getConnection();}
try{
stmt=conn.createStatement();
rs=stmt.executeQuery(sql);
returnrs;
}catch(SQLExceptione){
returnnull;
}
}
publicintexecuteUpdate(Stringsql){
Statementstmt=null;
intlinecount=0;
if(conn==null){
this.getConnection();}
try{
stmt=conn.createStatement();
linecount=stmt.executeUpdate(sql);
}catch(SQLExceptione){}
returnlinecount;
}
}
packageexp10;
importjava.awt.event.ActionEvent;
importjava.awt.event.ActionListener;
importjava.sql.ResultSet;
importjava.sql.SQLException;
importjavax.swing.Box;
importjavax.swing.ButtonGroup;
importjavax.swing.JButton;
importjavax.swing.JFrame;
importjavax.swing.JLabel;
importjavax.swing.JPanel;
importjavax.swing.JPasswordField;
importjavax.swing.JRadioButton;
importjavax.swing.JTextField;
publicclassLoginPaneextendsJPanelimplementsActionListener{
/**
*
*/
privatestaticfinallongserialVersionUID=1L;
JFramemyFrame;
JLabellab_username=newJLabel("用户名");
JTextFieldjt_username=newJTextField(20);
JLabellab_password=newJLabel("密码");
JPasswordFieldjt_pwd=newJPasswordField(20);
JRadioButtonjrb_manager=newJRadioButton("管理员");
JRadioButtonjrb_teacher=newJRadioButton("教师");
JRadioButtonjrb_student=newJRadioButton("学生");
publicLoginPane(JFramemyFrame){
this.myFrame=myFrame;
this.init();
}
publicvoidinit(){
Boxbox_user=Box.createHorizontalBox();
box_user.add(lab_username);
box_user.add(Box.createHorizontalStrut(20));
box_user.add(jt_username);
jt_pwd.setEchoChar('#');
Boxbox_pwd=Box.createHorizontalBox();
box_pwd.add(lab_password);
box_pwd.add(Box.createHorizontalStrut(20));
box_pwd.add(jt_pwd);
ButtonGroupbg=newButtonGroup();
bg.add(jrb_manager);
bg.add(jrb_teacher);
bg.add(jrb_student);
Boxbox_role=Box.createHorizontalBox();
box_role.add(jrb_manager);
box_role.add(Box.createHorizontalStrut(5));
box_role.add(jrb_teacher);
box_role.add(Box.createHorizontalStrut(5));
box_role.add(jrb_student);
JButtonjb_login=newJButton("登陆");
JButtonjb_exit=newJButton("退出");
Boxbox_button=Box.createHorizontalBox();
box_button.add(jb_login);
box_button.add(Box.createHorizontalStrut(30));
box_button.add(jb_exit);
jb_login.addActionListener(this);
jb_exit.addActionListener(this);
jb_login.setActionCommand("login");
jb_exit.setActionCommand("exit");
Boxbox_login=Box.createVerticalBox();
box_login.add(box_user);
box_login.add(Box.createHorizontalStrut(10));
box_login.add(box_pwd);
box_login.add(Box.createHorizontalStrut(10));
box_login.add(box_role);
box_login.add(Box.createHorizontalStrut(10));
box_login.add(box_button);
this.add(box_login);
}
@Override
publicvoidactionPerformed(ActionEvente){
//TODOAuto-generatedmethodstub
if(e.getActionCommand().equals("login")){
Stringusername=this.jt_username.getText().trim();
Stringpwd=String.valueOf(this.jt_pwd.getPassword());
DataBasedb=newDataBase();
Stringsql="select*fromUserwherename='"+username+"'andpassword='"+pwd+"'";
ResultSetrs=db.executeQuery(sql);
if(rs!
=null){
this.myFrame.setContentPane(newManagerPane(this.myFrame));
myFrame.setSize(800,500);
this.myFrame.validate();
}
}else{
this.myFrame.dispose();
}
}
}
packageexp10;
importjava.awt.event.ActionEvent;
importjava.awt.event.ActionListener;
importjava.awt.event.ItemEvent;
importjava.awt.event.ItemListener;
importjavax.swing.JFrame;
importjavax.swing.JMenu;
importjavax.swing.JMenuBar;
importjavax.swing.JMenuItem;
importjavax.swing.JPanel;
importjavax.swing.JTable;
publicclassManagerPaneextendsJPanelimplementsActionListener{
JFramemyFrame;
publicManagerPane(JFramemyFrame){
this.myFrame=myFrame;
this.init();
}
publicvoidinit(){
JMenuBarmenu=newJMenuBar();
JMenujm_user=newJMenu("人员管理");
JMenuItemjmi_add=newJMenuItem("增加人员");
JMenuItemjmi_search=newJMenuItem("查询人员");
jmi_add.addActionListener(this);
jmi_add.setActionCommand("addUser");
jmi_search.addActionListener(this);
jmi_search.setActionCommand("searchUser");
jm_user.add(jmi_add);
jm_user.add(jmi_search);
JMenujm_exit=newJMenu("退出");
menu.add(jm_user);
menu.add(jm_exit);
this.add(menu,0);
}
@Override
publicvoidactionPerformed(ActionEvente){
//TODOAuto-generatedmethodstub
if(e.getActionCommand().equals("searchUser")){
this.myFrame.setContentPane(newSearchUserPane(this.myFrame));
this.myFrame.validate();
}
}
}
packageexp10;
importjava.awt.event.ActionEvent;
importjava.awt.event.ActionListener;
importjava.sql.ResultSet;
importjava.sql.SQLException;
importjava.util.Vector;
importjavax.swing.Box;
importjavax.swing.JButton;
importjavax.swing.JFrame;
importjavax.swing.JLabel;
importjavax.swing.JPanel;
importjavax.swing.JTable;
importjavax.swing.JTextField;
importjavax.swing.table.DefaultTableModel;
publicclassSearchUserPaneextendsJPanelimplementsActionListener{
/**
*
*/
privatestaticfinallongserialVersionUID=1L;
JFramemyFrame;
JLabeljlb_name=newJLabel("查询用户名");
JTextFieldjt_name=newJTextField(20);
JButtonbtn_search=newJButton("查询");
DataBasedb=newDataBase();
DefaultTableModeltableModel;
JTablejt_show;
publicSearchUserPane(JFramemyFrame){
this.myFrame=myFrame;
init();
}
publicvoidinit(){
Boxbox_user=Box.createHorizontalBox();
box_user.add(jlb_name);
box_user.add(Box.createHorizontalStrut(20));
box_user.add(jt_name);
btn_search.addActionListener(this);
box_user.add(btn_search);
String[]colname={"编号","姓名","密码","身份"};
tableModel=newDefaultTableModel(null,colname);
jt_show=newJTable(tableModel);
Boxbox_show=Box.createHorizontalBox();
box_show.add(jt_show);
ResultSetrs=db.executeQuery("select*fromUser");
try{
while(rs.next()){
Vectordata=newVector();
data.add(rs.getString("id"));
data.add(rs.getString("name"));
data.add(rs.getString("password"));
data.add(rs.getString("role"));
tableModel.addRow(data);
}
}catch(SQLExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}
Boxbox_search=Box.createVerticalBox();
box_search.add(box_user);
box_search.add(Box.createVerticalStrut(50));
box_search.add(box_show);
this.add(box_search);
}
@Override
publicvoidactionPerformed(ActionEvente){
//TODOAuto-generatedmethodstub
if(e.getSource()==this.btn_search){
Stringusername=this.jt_name.getText().trim();
ResultSetrs=db.executeQuery("select*fromUserwherename='"+username+"'");
try{
while(rs.next()){
Vectordata=newVector();
data.add(rs.getString("id"));
data.add(rs.getString("name"));
data.add(rs.getString("password"));
data.add(rs.getString("role"));
tableModel.fireTableDataChanged();
tableModel.addRow(data);
}
}catch(SQLExceptione1){
//TODOAuto-generatedcatchblock
e1.printStackTrace();
}
}
}
}
packageexp10;
importjavax.swing.JTable;
importjavax.swing.table.DefaultTableModel;
publicclassUserTableextendsJTable{
publicUserTable(){
}
}
packageexp10;
importjava.sql.ResultSet;
importjava.sql.ResultSetMetaData;
importjava.sql.SQLException;
importjava.util.Vector;
importjavax.swing.table.AbstractTableModel;
publicclassUserTableModelextendsAbstractTableModel{
ResultSetrs;
Vectortabledat;
publicUserTableModel(){
DataBasedb=newDataBase();
rs=db.executeQuery("select*fromUser");
tabledat=newVector();
}
@Override
publicintgetColumnCount(){
//TODOAuto-generatedmethodstub
try{
ResultSetMetaDatametadata=rs.getMetaData();
returnmetadata.getColumnCount();
}catch(SQLExceptione){
//TODOAuto-generatedcatchblock
return0;
}
}
@Override
publicintgetRowCount(){
//TODOAuto-generatedmethodstub
intrownum=0;
try{
while(rs.next()){
rownum++;
}
}catch(SQLExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}
returnrownum;
}
@Override
publicObjectgetValueAt(introw,intcol){
//TODOAuto-generatedmethodstub
try{
if(rs.absolute(row)){
returnrs.getObject(col);
}
}catch(SQLExceptione){
//TODOAuto-generatedcatchblock
}
returnnull;
}
}
时间:
2021.02.11
创作:
欧阳计
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- 关 键 词:
- 学生 管理 系统 图形界面 Java 欧阳 创编