首先xmlHttpRequest 使用Post时,需要对数据进行编码,在客户端一般使用js中的encodeURIComponent
在web.config中指定了gb2312编码后,在aspx页面中如果直接使用 Request[xxx]那么结果将会出现乱码,
原因是asp.net系统使用gb2312编码对上传的数据进行解码还原,而encodeURIComponent编码是按uft-8来的.
为了避免这个问题,我们需要见xmlHttpRequest发送上来的原始数据(字节)按utf-8进行解码处理,
方式一
代码如下
浏览器端(js):
function myXMLHttpRequest(){ var xmlHttp = false; try { xmlHttp = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e2) { xmlHttp = false; } } if (!xmlHttp && typeof XMLHttpRequest != 'undefined') { xmlHttp = new XMLHttpRequest(); } return xmlHttp; }
var xmlHttp=myXMLHttpRequest(); content = "user="+encodeURIComponent("大发啊个啊按时法米]]吗吗吗*-234^342942023&^+//"); content +="&data=" +encodeURIComponent("到这里结束了!"); xmlHttp.Open("POST", "doc.aspx", false); xmlHttp.setRequestHeader("Content-Length",content.length); xmlHttp.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded"); xmlHttp.Send(content);
服务器端(asp.net)
Byte[] bytes= Request.BinaryRead(Request.ContentLength); NameValueCollection req= FillFromEncodedBytes(bytes, Encoding.UTF8); Response.Write(req["User"]);
其中FillFromEncodedBytes定义如下(这个是ms内部代码,通过reflector 获得,作用就是根据url编码将字段跟数据分解出来)
略有改动
private NameValueCollection FillFromEncodedBytes(byte[] bytes, Encoding encoding) { NameValueCollection _form = new NameValueCollection(); int num = (bytes != null) ? bytes.Length : 0; for (int i = 0; i < num; i++) { string str; string str2; int offset = i; int num4 = -1; while (i < num) { byte num5 = bytes[i]; if (num5 == 0x3d) { if (num4 < 0) { num4 = i; } } else if (num5 == 0x26) { break; } i++; } if (num4 >= 0) { str = HttpUtility.UrlDecode(bytes, offset, num4 - offset, encoding); str2 = HttpUtility.UrlDecode(bytes, num4 + 1, (i - num4) - 1, encoding); } else { str = null; str2 = HttpUtility.UrlDecode(bytes, offset, i - offset, encoding); } _form.Add(str, str2); if ((i == (num - 1)) && (bytes[i] == 0x26)) { _form.Add(null, string.Empty); } } return _form; }
参考代码:http://files.cnblogs.com/wdfrog/xmlhttp.rar
--------------------------------------------------------- 方式二,使用GET方式发来的请求,上面(方式一)的每个字段也可以使用下面方式进行转换 客户端:(使用Utf-8编码方式) /services/regServices.aspx?username='+encodeURI(un.value) 服务端:(默认情况下,Request["xxx"]使用gb2312进行UrlDecode处理,所以将结果按gb2312 UrlEncode,后再使用utf-8进行UrlDecode) string data1 = Util.GetQ("username", ""); string data2= HttpUtility.UrlEncode(data1, Encoding.GetEncoding("GB2312")); string username = HttpUtility.UrlDecode(data2, Encoding.UTF8);
方式三,处理方式类似第一种,因为要获取的Get,中的Query
IServiceProvider provider = (IServiceProvider)HttpContext.Current; HttpWorkerRequest wr= provider.GetService(typeof(HttpWorkerRequest)) as HttpWorkerRequest; byte[] bytes = wr.GetQueryStringRawBytes(); NameValueCollection req = FillFromEncodedBytes(bytes, Encoding.UTF8); string u = req["username"];
<script xml:space="preserve" type="text/javascript"> google_ad_client = "pub-9768854185654179"; /* 468x60, 创建于 09-2-12 */ google_ad_slot = "6840815711"; google_ad_width = 468; google_ad_height = 60; </script> <script src="http://pagead2.googlesyndication.com/pagead/show_ads.js" xml:space="preserve" type="text/javascript"> </script>
