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字符串GZIP压缩解压

發(fā)布時間：2024/1/17 编程问答 20 豆豆

生活随笔收集整理的這篇文章主要介紹了字符串GZIP压缩解压小編覺得挺不錯的,現(xiàn)在分享給大家,幫大家做個參考.

/// <summary>/// 字符串壓縮解壓/// </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 οnclick="encode()">encode</button><button οnclick="decode()">decode</button><div id="ciphertext"></div> </body> </html>

轉(zhuǎn)載于:https://www.cnblogs.com/liuxiaoji/p/9528773.html

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