int result = 0;

File file = null;

String path = null;

JFileChooser fileChooser = new JFileChooser();

FileSystemView fsv = FileSystemView.getFileSystemView(); //注意了，这里重要的一句

System.out.println(fsv.getHomeDirectory()); //得到桌面路径

fileChooser.setCurrentDirectory(fsv.getHomeDirectory());

fileChooser.setDialogTitle("请选择要上传的文件...");

fileChooser.setApproveButtonText("确定");

fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);

result = fileChooser.showOpenDialog(null);    //此处的参数不知道该写什么，暂时用空代替，也能弹出选择框

if (JFileChooser.APPROVE_OPTION == result) {

path=fileChooser.getSelectedFile().getPath();

System.out.println("path: "+path);

}

FileOutputStream fos = new FileOutputStream("E:\\TEST.text");

fos.write(value.getBytes());

fos.close();

 

public String buildWinDiolag(){

JFileChooser chooser2 = new JFileChooser();

chooser2.setDialogTitle("另存为");

//注意两个方法不同

int returnVal = chooser2.showSaveDialog(null);

chooser2.setVisible(true);

if(returnVal == JFileChooser.CANCEL_OPTION){

return "";

}

String pathname = chooser2.getSelectedFile().getAbsolutePath();

return pathname;     //此处返回值为选中的文件的绝对路径

}

 

 

 

 

 

上传部分摘自：http://www.cnblogs.com/xyzq/p/6023888.html