SWT的文件选择对话框I的使用

swt文件选择框

FileDialog fileselect=new FileDialog(shell,SWT.SINGLE);
                         fileselect.setFilterNames(new String[]{"*.xls","所有文件"});
                         fileselect.setFilterExtensions(new String[]{"*.xls","*.*"});
                        String url="";
                        url=fileselect.open();
                        System.out.println(url);