JAVA教程之用Java完成HTML文件取代数据库存储数据... - 仓酷云

importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjava.sql.*;importjava.io.*;importjavax.swing.*;publicclassfileworkextendsJFrameimplementsActionListener{JPanelp;JButtonb0,b1,b2;JTabletab;Objectmy[][]=newObject[50][3];inta[]=newint[50];intb[]=newint[50];intj=0,rows=0;intk=0,shu=0;Stringname,age;Stringtitle[]={"姓名","岁数","身高"};BufferedReaderin;inti=0;publicfilework(){super("数据循环");this.setSize(300,300);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);p=newJPanel();tab=newJTable(my,title);b0=newJButton("增加");b1=newJButton("翻开");b2=newJButton("保留");b1.addActionListener(this);b2.addActionListener(this);b0.addActionListener(this);p.add(b0);p.add(b1);p.add(b2);this.getContentPane().add(newJScrollPane(tab),"Center");this.getContentPane().add(p,"South");this.setVisible(true);}publicvoidfileopen(){try{JFileChooserchoose=newJFileChooser(".");intsis=choose.showOpenDialog(this);Stringname=choose.getSelectedFile()+"";if(sis==JFileChooser.APPROVE_OPTION){in=newBufferedReader(newFileReader(name));Stringover=null;Stringline;while((line=in.readLine())!=null){over=over+line;}for(inti=0;i<a.length;i++){a[i]=over.indexOf("<td>")+4;b[i]=over.indexOf("</td>");my[rows][k]=over.substring(a[i],b[i]);over=over.substring(b[i]+4,over.length());k=k+1;if(k==3){k=0;rows=rows+1;}}}}catch(Exceptionie){}}publicstaticvoidmain(String[]args){fileworkfilework=newfilework();}publicvoidactionPerformed(ActionEvente){if(e.getSource()==b1){fileopen();}if(e.getSource()==b2){JFileChoosersave=newJFileChooser(".");intresult=save.showSaveDialog(null);Strings1=save.getSelectedFile()+"";if(result==JFileChooser.APPROVE_OPTION){try{OutputStreamWriterout=newOutputStreamWriter(newFileOutputStream(s1));Strings2="<html><head></head><body>";s2=s2+"<tableborder="1"width="50%"bordercolor="green"align="center">";s2=s2+"<tr>";s2=s2+"<th>"+"姓名"+"</th>";s2=s2+"<th>"+"岁数"+"</th>";s2=s2+"<th>"+"身高"+"</th>";s2=s2+"</tr>";for(intshu=0;shu<rows;shu++){s2=s2+"<tralign="center">";s2=s2+"<td>"+my[shu][0].toString().trim()+"</td>";s2=s2+"<td>"+my[shu][1].toString().trim()+"</td>";s2=s2+"<td>"+my[shu][2].toString().trim()+"</td>";s2=s2+"</tr>";}s2=s2+"</table></body></html>";out.write(s2);out.close();for(inti1=0;i1<50;i1++){my[i1][0]="";my[i1][1]="";my[i1][2]="";}rows=0;this.repaint();JOptionPane.showMessageDialog(null,"保留数据乐成!","information",JOptionPane.QUESTION_MESSAGE);}catch(Exceptionex1){}}}if(e.getSource()==b0){JTextFieldmessage[]=newJTextField[6];message[0]=newJTextField("请输出姓名：");message[0].setEditable(false);message[1]=newJTextField();message[2]=newJTextField("请输出岁数：");message[2].setEditable(false);message[3]=newJTextField();message[4]=newJTextField("请输出身高：");message[4].setEditable(false);message[5]=newJTextField();Stringstr[]={"确认","作废"};intgo=JOptionPane.showOptionDialog(null,message,"增加用户",JOptionPane.YES_OPTION,JOptionPane.INFORMATION_MESSAGE,null,str,str[0]);if(go==0){if(message[1].getText().equals("")&&message[3].getText().equals("")&&message[5].getText().equals("")){JOptionPane.showMessageDialog(null,"数据不克不及为空","ERROR",JOptionPane.ERROR_MESSAGE);}else{my[rows][0]=message[1].getText();my[rows][1]=message[3].getText();my[rows][2]=message[5].getText();this.repaint();rows=rows+1;}}}}}

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