//通过swing控件读取文件
private static void chooseFile() {
JFileChooser jfc = new JFileChooser();// 初始化文件选择器 FileNameExtensionFilter filter = new FileNameExtensionFilter("TXT","txt");// 设置文件过滤,TXT为提示用户选择文件类型,txt为文件过滤后缀 jfc.setFileFilter(filter);// 将文件过滤加载到选择器中 int returnVal = jfc.showOpenDialog(null); if (returnVal == JFileChooser.APPROVE_OPTION) { // 获得打开的文件 File file = jfc.getSelectedFile(); File out = new File(file.getParent() + "\\jiagkun.txt"); try { InputStreamReader in = new InputStreamReader( new FileInputStream(file), "UTF-8"); BufferedReader buff = new BufferedReader(in); BufferedWriter write = new BufferedWriter(new FileWriter(out)); String text = null; while ((text = buff.readLine()) != null) { write.write(text + "\n"); } buff.close(); write.close(); } catch (FileNotFoundException e1) { } catch (UnsupportedEncodingException e1) { } catch (IOException e1) { } }