如何将UTF-8编码的字符串“%E5%93%88%E5%93%88”转化成的汉字？

[tom0421]

如题，答案是“哈哈”

[gongyali2005]

url纺码解码.

[火龙果被占用了]

String s = "%E5%93%88%E5%93%88";
String str = URLDecoder.decode(s, "utf-8");
System.out.println(str);