java中的解码与转码（URLEncoder.encode(),URLEncoder.decode()）

import java.net.URLDecoder;

import java.net.URLEncoder;

String strTest = "?=abc?中%1&2<3,4>";

strTest = URLEncoder.encode(strTest, "UTF-8");//转码

System.out.println(strTest);

strTest = URLDecoder.decode(strTest,"UTF-8");//解码

System.out.println(strTest);

结果：

%3F%3Dabc%3F%E4%B8%AD%251%262%3C3%2C4%3E

?=abc?中%1&2<3,4>