textbox文本框内容压缩后解压缩
--------------------编程问答-------------------- 你是要干什么? --------------------编程问答-------------------- 最近要用webservice传递字符串,由于数据量不是很大,所以选择微软提供的GZipStream压缩与解压。这里是加压其实很简单,就是将传入的byte数组直接用GZipStream写到一个新的内存流里面去
public static byte[] Compress(byte[] bytes)
{
using (MemoryStream ms = new MemoryStream())
{
GZipStream Compress = new GZipStream(ms, CompressionMode.Compress);
Compress.Write(bytes, 0, bytes.Length);
Compress.Close();
return ms.ToArray();
}
}
因为我是用的.ne Framwork 4.0 所以GZipStream有CopyTo这个方法,但是4.0以下就没有这个方法。如果4.0以下只有在用一个BinaryReader
在去读取
public static byte[] Decompress(Byte[] bytes)
{
using (MemoryStream tempMs = new MemoryStream())
{
using (MemoryStream ms = new MemoryStream(bytes))
{
GZipStream Decompress = new GZipStream(ms, CompressionMode.Decompress);
Decompress.CopyTo(tempMs);
Decompress.Close();
return tempMs.ToArray();
}
}
}
下面是C#使用GZipStream压缩与解压字符串
using System;
using System.Text;
using System.IO;
using System.IO.Compression;
using System.Collections.Generic;
namespace DatabaseUtilLib
{
public class ZipWrapper
{
public static string Compress(string str)
{
//因输入的字符串不是Base64所以转换为Base64,因为HTTP如果不传递Base64则会发生http 400错误
return Convert.ToBase64String(Compress(Convert.FromBase64String(Convert.ToBase64String(Encoding.Default.GetBytes(str)))));
}
public static string Decompress(string str)
{
return Encoding.Default.GetString(Decompress(Convert.FromBase64String(str)));
}
public static byte[] Compress(byte[] bytes)
{
using (MemoryStream ms = new MemoryStream())
{
GZipStream Compress = new GZipStream(ms, CompressionMode.Compress);
Compress.Write(bytes, 0, bytes.Length);
Compress.Close();
return ms.ToArray();
}
}
public static byte[] Decompress(Byte[] bytes)
{
using (MemoryStream tempMs = new MemoryStream())
{
using (MemoryStream ms = new MemoryStream(bytes))
{
GZipStream Decompress = new GZipStream(ms, CompressionMode.Decompress);
Decompress.CopyTo(tempMs);
Decompress.Close();
return tempMs.ToArray();
}
}
}
}
}
补充:.NET技术 , C#