问题描述
主窗体程序...packageframedemo;importjava.awt.BorderLayout;importjava.awt.FlowLayout;importjava.awt.ScrollPane;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.ResultSet;importjava.sql.SQLException;importjava.sql.Statement;importjavax.swing.JButton;importjavax.swing.JFrame;importjavax.swing.JPanel;importjavax.swing.JScrollPane;importjavax.swing.JTable;publicclassMyExampleextendsJFrameimplementsActionListener{privatestaticMyExamplemyExample;privatestaticJPaneljPanel1=newJPanel();privatestaticJPaneljPanel2=newJPanel();privateJButtonbtn1;privateJButtonbtn2;privateJButtonbtn3;privateJButtonbtn4;privateJButtonbtn5;privatestaticJTabletable;privatestaticJScrollPanejsp;privatestaticObjectcolumnNames[]={"编号","书名",};privatestaticObjectrowData[][]=newObject[15][2];privatestaticConnectionconn=null;privatestaticStatementsql=null;privatestaticResultSetrs=null;publicMyExample(){super("图书管理系统");setBounds(100,100,500,500);btn1=newJButton("查询");btn2=newJButton("添加");btn3=newJButton("修改");btn4=newJButton("删除");btn5=newJButton("退出");btn1.addActionListener(this);btn4.addActionListener(this);jPanel1.setLayout(newFlowLayout());jPanel1.add(btn1);jPanel1.add(btn2);jPanel1.add(btn3);jPanel1.add(btn4);jPanel1.add(btn5);this.add(jPanel1,BorderLayout.SOUTH);setVisible(true);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}publicstaticvoidmain(String[]args){myExample=newMyExample();sqlQuery();}publicstaticvoidsqlQuery(){try{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");}catch(ClassNotFoundExceptione){System.out.println("驱动加载错误...");}try{conn=DriverManager.getConnection("jdbc:odbc:MyBook");sql=conn.createStatement();rs=sql.executeQuery("select*frombook");for(inti=0;i<15;i++){if(rs.next()){for(intj=0;j<2;j++){rowData[i][j]=rs.getString(j+1);}}}rs.close();sql.close();conn.close();}catch(SQLExceptione){System.out.println("数据库连接错误...");}table=newJTable(rowData,columnNames);jsp=newJScrollPane(table);jsp.setViewportView(table);jPanel2.add(jsp);myExample.add(jPanel2,BorderLayout.CENTER);myExample.setVisible(true);}publicvoidactionPerformed(ActionEvente){if(e.getSource()==btn4){newDelete();}elseif(e.getSource()==btn1){newQuery();}}}删除数据窗体packageframedemo;importjava.awt.BorderLayout;importjava.awt.FlowLayout;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.ResultSet;importjava.sql.SQLException;importjava.sql.Statement;importjavax.swing.JButton;importjavax.swing.JFrame;importjavax.swing.JLabel;importjavax.swing.JOptionPane;importjavax.swing.JPanel;importjavax.swing.JTextField;importjava.sql.*;publicclassDeleteextendsJFrameimplementsActionListener{JOptionPanejOptionPane=newJOptionPane();JPaneljPanel1=newJPanel();JPaneljPanel2=newJPanel();JLabeljl=newJLabel("删除的编号");JTextFieldjtf=newJTextField();JButtonjButton1=newJButton("确定");JButtonjButton2=newJButton("退出");publicDelete(){super("删除书籍");jPanel1.setLayout(newFlowLayout());jPanel1.add(jl);jPanel1.add(jtf);jtf.setColumns(10);this.add(jPanel1,BorderLayout.CENTER);jPanel2.setLayout(newFlowLayout());jPanel2.add(jButton1);jPanel2.add(jButton2);jButton1.addActionListener(this);jButton2.addActionListener(this);this.add(jPanel2,BorderLayout.CENTER);setBounds(150,150,200,200);setLayout(newFlowLayout());setVisible(true);this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);}publicstaticvoidmain(String[]args){newDelete();}publicvoidactionPerformed(ActionEvente){if(e.getSource()==jButton1){Connectionconn=null;Statementsql=null;try{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");}catch(ClassNotFoundExceptionee){System.out.println("驱动加载错误...");}try{if(jOptionPane.showConfirmDialog(this,"您确定要删除吗？","提示",JOptionPane.YES_NO_OPTION)==JOptionPane.YES_OPTION){conn=DriverManager.getConnection("jdbc:odbc:MyBook");sql=conn.createStatement();Stringstr="deletefrombookwhereid='"+jtf.getText()+"'";sql.executeUpdate(str);MyExample.sqlQuery();sql.close();conn.close();}}catch(SQLExceptionse){System.out.println("数据库连接错误...");}}elseif(e.getSource()==jButton2){System.exit(0);//this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);}}}就是删除之后不能自动更新主窗体要重新运行才能显示出删除后的结果。我要点删除之后，主窗体自动更新应该怎么做啊
解决方案
解决方案二：
想办法，删除之后刷新页面
解决方案三：
哎，关键这是图形界面还不是很好弄，不知道怎么刷新窗体？麻烦那个高手改改，谢谢了
解决方案四：
删除之后你要重新去数据库中取数据才行取数据之后要重新填充表格填充表格之后重新画一下就可
解决方案五：
本人菜鸟，能不能把程序改了发给我啊
解决方案六：
引用4楼tian_song的回复:
本人菜鸟，能不能把程序改了发给我啊
没看楼主的代码删除之后重画一些frame的重画方法就行了
解决方案七：
删除后调用frame.repaint()方法。