javaswt选择文件对话框.doc

package com.fh.zhuanhuan;import java.awt.FlowLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.BufferedReader;import java.io.File;import java.io.FileReader;import javax.swing.Box;import javax.swing.JButton;import javax.swing.JFileChooser;import javax.swing.JFrame;import javax.swing.JOptionPane;import javax.swing.JPanel;import com.fh.readfile.FileRead;public class ZhuanHuanMain extends JFrame /* * param args * author 王辉 */private JButton bt,bt2;private Box box;private JFileChooser jc;private String filepath=;public ZhuanHuanMain()this.setTitle(经纬度转换小程序);this.setLayout(new FlowLayout();box=Box.createVerticalBox();/bt2=new JButton(选择文件名称);box.add(bt2);bt=new JButton(转换);box.add(bt);bt.addActionListener(new ActionListener() Overridepublic void actionPerformed(ActionEvent e) /开始转化if(filepath=null|filepath.equals()show(没有选择文件);elsenew FileRead().readerfile(filepath););bt2.addActionListener(new ActionListener() Overridepublic void actionPerformed(ActionEvent e) jc=new JFileChooser();jc.showSaveDialog(null);if(jc.getSelectedFile()!=null)filepath=jc.getSelectedFile().getAbsolutePath();bt2.setText(文件名称：+filepath);elseshow(没有选择文件););this.add(box);this.setResizable(false);this.setVisible(true);this.setSize(400, 120);public static void main(String args) / TODO Auto-generated method stub/File file=new File(config.xml);/try /FileReader fr=new FileReader(file);/BufferedReader br=new BufferedReader(fr);/String filepath=br.readLine();/System.out.println(filepath);/new FileRead().readerfile(filepath);/ catch (Exception e) /e.printStackTrace();/new ZhuanHu