asp.net 转换GB2312 的字符串为UTF8编码

/// <summary>

/// 调用函数

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

protected void Button1_Click(object sender, EventArgs e)

{

Response.Write(GB2312ToUTF8("大家好，欢迎访问 http://www.my400800.cn
"));

}

/// <summary>

/// 转换GB2312 的字符串为UTF8编码

/// </summary>

/// <param name="str"></param>

/// <returns></returns>

public string GB2312ToUTF8(string str)

{

try

{

Encoding uft8 = Encoding.GetEncoding(65001);

Encoding gb2312 = Encoding.GetEncoding("gb2312");

byte[] temp = gb2312.GetBytes(str);

Response.Write("gb2312的编码的字节个数：" + temp.Length+"<br>");

for (int i = 0; i < temp.Length; i++)

{

Response.Write(Convert.ToUInt16(temp[i]).ToString() + "<br>");

}

byte[] temp1 = Encoding.Convert(gb2312, uft8, temp);

Response.Write("uft8的编码的字节个数：" + temp1.Length + "<br>");

for (int i = 0; i < temp1.Length; i++)

{

Response.Write(Convert.ToUInt16(temp1[i]).ToString() + "<br>");

}

string result = uft8.GetString(temp1);

return result;

}

catch (Exception ex)

{

Response.Write(ex.ToString());

return null;

}

}