本地文件夹选择框

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

原文地址:https://www.cnblogs.com/xinshou-2017/p/7299738.html