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分享两天了还没搞定,求高手指教啊....wp异步请求返回信息中文乱码
public void responseCallback(IAsyncResult result)
{
try
{
//获取异步操作返回的的信息
HttpWebRequest request = (HttpWebRequest)result.AsyncState;
//结束对 Internet 资源的异步请求
HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(result);
//解析应答头
//parseRecvHeader(response.Headers);
//获取请求体信息长度
long contentLength = response.ContentLength;
//获取应答码
int statusCode = (int)response.StatusCode;
string statusText = response.StatusDescription;
//应答头信息验证
using (Stream stream = response.GetResponseStream())
{
//获取请求信息
StreamReader read = new StreamReader(stream,new HtmlAgilityPack.Gb2312Encoding());
string msg = read.ReadToEnd();
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
phoneTextBlock.Text = msg;
});
}
}
catch (WebException e)
{
//连接失败
}
catch (Exception e)
{
//异常处理
}
}
我再网上下了个HtmlAgilityPack.dll,但是提示HtmlAgilityPack下没有Gb2312Encoding()这个方法,求高手指教啊........
...全文
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gnimgnot 2013-03-24
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还有一个gb2312.bin和楼上那个类放在一个目录下
http://encoding4silverlight.codeplex.com/
在上面这个链接下载。
gnimgnot 2013-03-24
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/*
* ****************************************************
* Copyright (c) Aimeast. All rights reserved.
* ****************************************************
*/
using System;
using System.IO;
using System.Linq;
using System.Text;
namespace GB2312
{
public sealed class GB2312Encoding : Encoding
{
private const char LEAD_BYTE_CHAR = '\uFFFE';
static GB2312Encoding()
{
if (!BitConverter.IsLittleEndian)
throw new PlatformNotSupportedException("Not supported big endian platform.");
}
public override int GetByteCount(char[] chars, int index, int count)
{
int byteCount = 0;
ushort u;
char c;
for (int i = 0; i < count; index++, byteCount++, i++)
{
c = chars[index];
u = Map.UnicodeToGB2312(c);
if (u > 0xff)
byteCount++;
}
return byteCount;
}
public override int GetBytes(char[] chars, int charIndex, int charCount, byte[] bytes, int byteIndex)
{
int byteCount = 0;
ushort u;
char c;
for (int i = 0; i < charCount; charIndex++, byteIndex++, byteCount++, i++)
{
c = chars[charIndex];
u = Map.UnicodeToGB2312(c);
if (u == 0 && c != 0)
{
bytes[byteIndex] = 0x3f; // 0x3f == '?'
}
else if (u < 0x100)
{
bytes[byteIndex] = (byte)u;
}
else
{
bytes[byteIndex] = (byte)((u >> 8) & 0xff);
byteIndex++;
byteCount++;
bytes[byteIndex] = (byte)(u & 0xff);
}
}
return byteCount;
}
public override int GetCharCount(byte[] bytes, int index, int count)
{
return GetCharCount(bytes, index, count, null);
}
private int GetCharCount(byte[] bytes, int index, int count, GB2312Decoder decoder)
{
int charCount = 0;
ushort u;
char c;
for (int i = 0; i < count; index++, charCount++, i++)
{
u = 0;
if (decoder != null && decoder.pendingByte != 0)
{
u = decoder.pendingByte;
decoder.pendingByte = 0;
}
u = (ushort)(u << 8 | bytes[index]);
c = Map.GB2312ToUnicode(u);
if (c == LEAD_BYTE_CHAR)
{
if (i < count - 1)
{
index++;
i++;
}
else if (decoder != null)
{
decoder.pendingByte = bytes[index];
return charCount;
}
}
}
return charCount;
}
public override int GetChars(byte[] bytes, int byteIndex, int byteCount, char[] chars, int charIndex)
{
return GetChars(bytes, byteIndex, byteCount, chars, charIndex, null);
}
private int GetChars(byte[] bytes, int byteIndex, int byteCount, char[] chars, int charIndex, GB2312Decoder decoder)
{
int charCount = 0;
ushort u;
char c;
for (int i = 0; i < byteCount; byteIndex++, charIndex++, charCount++, i++)
{
u = 0;
if (decoder != null && decoder.pendingByte != 0)
{
u = decoder.pendingByte;
decoder.pendingByte = 0;
}
u = (ushort)(u << 8 | bytes[byteIndex]);
c = Map.GB2312ToUnicode(u);
if (c == LEAD_BYTE_CHAR)
{
if (i < byteCount - 1)
{
byteIndex++;
i++;
u = (ushort)(u << 8 | bytes[byteIndex]);
c = Map.GB2312ToUnicode(u);
}
else if (decoder == null)
{
c = '\0';
}
else
{
decoder.pendingByte = bytes[byteIndex];
return charCount;
}
}
if (c == 0 && u != 0)
chars[charIndex] = '?';
else
chars[charIndex] = c;
}
return charCount;
}
public override int GetMaxByteCount(int charCount)
{
if (charCount < 0)
throw new ArgumentOutOfRangeException("charCount");
long count = charCount + 1;
count *= 2;
if (count > int.MaxValue)
throw new ArgumentOutOfRangeException("charCount");
return (int)count;
}
public override int GetMaxCharCount(int byteCount)
{
if (byteCount < 0)
throw new ArgumentOutOfRangeException("byteCount");
long count = byteCount + 3;
if (count > int.MaxValue)
throw new ArgumentOutOfRangeException("byteCount");
return (int)count;
}
public override Decoder GetDecoder()
{
return new GB2312Decoder(this);
}
public override string WebName
{
get
{
return "gb2312";
}
}
private static class Map
{
private static ushort[] _gb2312ToUnicode = null;
private static ushort[] _unicodeToGb2312 = null;
static Map()
{
_gb2312ToUnicode = new ushort[0x10000];
_unicodeToGb2312 = new ushort[0x10000];
/*
* According to many feedbacks, add this automatic function for find resource in revision 1.0.0.1.
* We suggest that use the old method as below if you understand how to embed the resource.
* Please make sure the gb2312.bin file was correctly embedded if throw an exception at here.
*/
//using (Stream stream = typeof(Map).Assembly.GetManifestResourceStream(typeof(Map).Namespace + ".gb2312.bin"))
using (Stream stream = typeof(Map).Assembly.GetManifestResourceStream(typeof(Map).Assembly.GetManifestResourceNames().First(s => s.EndsWith(".gb2312.bin"))))
using (BinaryReader reader = new BinaryReader(stream))
{
for (int i = 0; i < 0xffff; i++)
{
ushort u = reader.ReadUInt16();
_unicodeToGb2312[i] = u;
}
for (int i = 0; i < 0xffff; i++)
{
ushort u = reader.ReadUInt16();
_gb2312ToUnicode[i] = u;
}
}
}
public static char GB2312ToUnicode(ushort code)
{
return (char)_gb2312ToUnicode[code];
}
public static ushort UnicodeToGB2312(char ch)
{
return _unicodeToGb2312[ch];
}
}
private sealed class GB2312Decoder : Decoder
{
private GB2312Encoding _encoding = null;
public GB2312Decoder(GB2312Encoding encoding)
{
_encoding = encoding;
}
public override int GetCharCount(byte[] bytes, int index, int count)
{
return _encoding.GetCharCount(bytes, index, count, this);
}
public override int GetChars(byte[] bytes, int byteIndex, int byteCount, char[] chars, int charIndex)
{
return _encoding.GetChars(bytes, byteIndex, byteCount, chars, charIndex, this);
}
public byte pendingByte;
}
}
}
gnimgnot 2013-03-24
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StreamReader reader = new StreamReader(streamResult, new GB2312.GB2312Encoding());
string resultString = reader.ReadToEnd();
