java swt选择文件对话框.docxVIP

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() { @Override public void actionPerformed(ActionEvent e) { //开始转化 if(filepath==null||filepath.equals()){ show(没有选择文件); }else{ new FileRead().readerfile(filepath); } } }); bt2.addActionListener(new ActionListener() { @Override public 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); }else{ show(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 ZhuanHuanMain(); } public static void show(String msg){ JOptionPane.showMessageDialog(null,msg); } }