C#WebAPI如何处理数据压缩解压

在C# Web API中处理数据压缩和解压，可以使用.NET内置的System.IO.Compression命名空间中的GzipStream类。下面是一个简单的示例，展示了如何在Web API中实现数据的压缩和解压。

1. 首先，确保在项目中引用了System.IO.Compression命名空间。

2. 创建一个GzipCompressor类，用于处理数据的压缩和解压：

using System.IO;
using System.IO.Compression;
using System.Threading.Tasks;

public class GzipCompressor
{
    public static async Task<byte[]> CompressAsync(byte[] data)
    {
        using (var memoryStream = new MemoryStream())
        {
            using (var gzipStream = new GZipStream(memoryStream, CompressionMode.Compress))
            {
                gzipStream.Write(data, 0, data.Length);
            }

            return memoryStream.ToArray();
        }
    }

    public static async Task<byte[]> DecompressAsync(byte[] compressedData)
    {
        using (var memoryStream = new MemoryStream(compressedData))
        {
            using (var gzipStream = new GZipStream(memoryStream, CompressionMode.Decompress))
            {
                using (var memoryStreamForDecompressedData = new MemoryStream())
                {
                    gzipStream.CopyTo(memoryStreamForDecompressedData);
                    return memoryStreamForDecompressedData.ToArray();
                }
            }
        }
    }
}

3. 在Web API控制器中，使用GzipCompressor类处理数据的压缩和解压：

using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;

[ApiController]
[Route("api/[controller]")]
public class DataController : ControllerBase
{
    [HttpPost("compress")]
    public async Task<IActionResult> Compress([FromBody] byte[] data)
    {
        var compressedData = await GzipCompressor.CompressAsync(data);
        return Ok(compressedData);
    }

    [HttpPost("decompress")]
    public async Task<IActionResult> Decompress([FromBody] byte[] compressedData)
    {
        var decompressedData = await GzipCompressor.DecompressAsync(compressedData);
        return Ok(decompressedData);
    }
}

现在，当客户端向/api/data/compress发送POST请求时，数据将被压缩并作为响应返回。当客户端向/api/data/decompress发送POST请求时，压缩的数据将被解压并作为响应返回。