C#压缩JSON数据的技巧

在C#中压缩JSON数据可以使用GZipStream类。以下是一个示例代码：

using System; using System.IO; using System.IO.Compression; using System.Text;  public class JsonCompression {     public static string Compress(string json)     {         byte[] buffer = Encoding.UTF8.GetBytes(json);         using (MemoryStream ms = new MemoryStream())         {             using (GZipStream zip = new GZipStream(ms, CompressionMode.Compress, true))             {                 zip.Write(buffer, 0, buffer.Length);             }              ms.Position = 0;             byte[] compressed = new byte[ms.Length];             ms.Read(compressed, 0, compressed.Length);              byte[] gzBuffer = new byte[compressed.Length + 4];             System.Buffer.BlockCopy(compressed, 0, gzBuffer, 4, compressed.Length);             System.Buffer.BlockCopy(BitConverter.GetBytes(buffer.Length), 0, gzBuffer, 0, 4);             return Convert.ToBase64String(gzBuffer);         }     }      public static string Decompress(string compressedJson)     {         byte[] gzBuffer = Convert.FromBase64String(compressedJson);         using (MemoryStream ms = new MemoryStream())         {             int msgLength = BitConverter.ToInt32(gzBuffer, 0);             ms.Write(gzBuffer, 4, gzBuffer.Length - 4);              byte[] buffer = new byte[msgLength];              ms.Position = 0;             using (GZipStream zip = new GZipStream(ms, CompressionMode.Decompress))             {                 zip.Read(buffer, 0, buffer.Length);             }              return Encoding.UTF8.GetString(buffer);         }     } } 

使用示例：

string json = "{\"name\": \"John\", \"age\": 30}"; string compressedJson = JsonCompression.Compress(json); string decompressedJson = JsonCompression.Decompress(compressedJson);  Console.WriteLine($"Original JSON: {json}"); Console.WriteLine($"Compressed JSON: {compressedJson}"); Console.WriteLine($"Decompressed JSON: {decompressedJson}"); 

在上面的示例中，Compress方法将JSON数据压缩成Base64字符串，而Decompress方法将压缩后的Base64字符串解压缩为原始JSON数据。