URL编码机制

URLEncoder.encode( URL, "UTF-8" );

URLDecoder.decode( URL, "UTF-8" );

1         String strEncode= URLEncoder.encode("https://www.baidu.com/s?wd=编码","UTF-8");
2         String strDecode= URLDecoder.decode("https://www.baidu.com/s?wd=%E7%BC%96%E7%A0%81", "UTF-8" );
3         System.out.println(strEncode);
4         System.out.println(strDecode);

1 https%3A%2F%2Fwww.baidu.com%2Fs%3Fwd%3D%E7%BC%96%E7%A0%81
2 https://www.baidu.com/s?wd=编码