Java递归删除目录下所有的txt文件

public static void delAllFile(File path) {
if (!path.exists() || !path.isDirectory()) { //不是目录
return ;
}
String[] tmpList = path.list();
if (tmpList != null) {
for (String aTempList : tmpList) {
File tmpFile = new File(path, aTempList);
if (tmpFile.isFile() && tmpFile.getName().endsWith(".txt")) {
tmpFile.delete();
} else if (tmpFile.isDirectory()) {
delAllFile(tmpFile);
}
}
}
}