c#
/// <summary> /// 字符串压缩解压 /// </summary> public class Zipper { public static string CompressString(string str) { str = HttpUtility.UrlEncode(str); var compressBeforeByte = Encoding.GetEncoding("UTF-8").GetBytes(str); var compressAfterByte = Compress(compressBeforeByte); string compressString = Convert.ToBase64String(compressAfterByte); return compressString; } public static string DecompressString(string str) { var compressBeforeByte = Convert.FromBase64String(str); var compressAfterByte = Decompress(compressBeforeByte); string compressString = Encoding.GetEncoding("UTF-8").GetString(compressAfterByte); return HttpUtility.UrlDecode(compressString); } /// <summary> /// Compress /// </summary> /// <param name="data"></param> /// <returns></returns> private static byte[] Compress(byte[] data) { try { var ms = new MemoryStream(); var zip = new GZipStream(ms, CompressionMode.Compress, true); zip.Write(data, 0, data.Length); zip.Close(); var buffer = new byte[ms.Length]; ms.Position = 0; ms.Read(buffer, 0, buffer.Length); ms.Close(); return buffer; } catch (Exception e) { throw new Exception(e.Message); } } /// <summary> /// Decompress /// </summary> /// <param name="data"></param> /// <returns></returns> private static byte[] Decompress(byte[] data) { try { var ms = new MemoryStream(data); var zip = new GZipStream(ms, CompressionMode.Decompress, true); var msreader = new MemoryStream(); var buffer = new byte[0x1000]; while (true) { var reader = zip.Read(buffer, 0, buffer.Length); if (reader <= 0) { break; } msreader.Write(buffer, 0, reader); } zip.Close(); ms.Close(); msreader.Position = 0; buffer = msreader.ToArray(); msreader.Close(); return buffer; } catch (Exception e) { throw new Exception(e.Message); } } }
js 基于pako.js
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>zip</title>
<script src="js/jquery.min.js"></script>
<script src="js/pako.min.js"></script>
<script type="text/javascript">
function encode() {
var str = $(‘#content‘).val();
str = window.btoa(pako.gzip(encodeURIComponent(str), { to: "string" }));
$(‘#ciphertext‘).text(str);
}
function decode() {
var encodedData = $(‘#content‘).val();
var decodedData = window.atob(encodedData);
var charData = decodedData.split(‘‘).map(function (x) { return x.charCodeAt(0); });
var binData = new Uint8Array(charData);
var data = pako.inflate(binData);
decodedData = String.fromCharCode.apply(null, new Uint16Array(data));
$(‘#ciphertext‘).text(decodeURIComponent(decodedData));
}
</script>
</head>
<body>
<input id="content" type="text">
<button onclick="encode()">encode</button>
<button onclick="decode()">decode</button>
<div id="ciphertext"></div>
</body>
</html>
原文：https://www.cnblogs.com/liuxiaoji/p/9528773.html