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语境：

大家好，我正在尝试在此网站上模拟查询，但我没有这样做。

我正在使用C#一个自定义的自行开发的库来包装 WebRequests 操作，从而更容易模拟Posts and Gets字符串和位图。

另外，我正在使用Fiddler2 Web Debugger 来调试服务的 Web 请求

如何自己测试服务：

  1. 链接到服务
  2. 在第一个白盒上使用此文档：04034872000121
  3. 输入验证码并点击“Consultar”

就是这样。

问题：

在使用 fiddler 调试请求后，并在代码上复制所有内容（Cookie、Origin、Host、带有巨大 json 的 Postdata 等）。

查询请求仍然无法正常工作，它再次将我重定向到主页，而不是查询文档。（我允许对 Web 请求对象进行“自动重定向”）。

我无法复制的唯一参数是：GxAjaxRequest: 1

以下是请求的 Fiddler 调试反馈：

POST http://sefaznet.ac.gov.br/sefazonline/servlet/hpfsincon?0898a16d81a4e94896958b17b52f252d,gx-no-cache=1354713117196 HTTP/1.1
Host: sefaznet.ac.gov.br
Connection: keep-alive
Content-Length: 1337
Origin: http://sefaznet.ac.gov.br
GxAjaxRequest: 1 **Weird Parameter. I've never saw it before.**
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko)     Chrome/23.0.1271.95 Safari/537.11
Content-Type: application/x-www-form-urlencoded
Accept: */*
Referer: http://sefaznet.ac.gov.br/sefazonline/servlet/hpfsincon
Accept-Encoding: gzip,deflate,sdch
Accept-Language: pt-BR,pt;q=0.8,en-US;q=0.6,en;q=0.4
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
Cookie: GX_SESSION_ID=vSLRLKed3eXJGMBorGepVtQkJOQ1I3o0EBUVzT0g%2BI8%3D;     JSESSIONID=af2ba968b7889ec8869caaaba281

vNUMDOC=04034872000121&cfield=chin&BUTTON1=Consultar&BTN_VOLTAR=Retornar&GXState=%7B%22_EventName%22%3A%22E'VISUALIZADADOS'.%22%2C%22_EventGridId%22%3A44%2C%22_EventRowId%22%3Aundefined%2C%22nRC_Duplicados%22%3A%220%22%2C%22CAPTCHA1_Reloadimagetext%22%3A%22Obter%20nova%20imagem!%22%2C%22CAPTCHA1_Validationresult%22%3A1%2C%22GX_FocusControl%22%3A%22vNUMDOC%22%2C%22GX_AJAX_KEY%22%3A%2264FFFF0AFF7A4DFF2655FFFFFF26FF77%22%2C%22AJAX_SECURITY_TOKEN%22%3A%221a9634f566dcd40d12bb8146fd7ff6edca12ae737a3743d79b4b826c3bd4a604%22%2C%22GX_CMP_OBJS%22%3A%7B%7D%2C%22sCallerURL%22%3A%22%2Fsefazonline%2Fservlet%2Fhpfsindado%3FeTlFtl5mBgEOtpLCt8Q02bMjmN3K93hV7i2Uxq_rHv0%3D%22%2C%22GX_RES_PROVIDER%22%3A%22com.genexus.webpanels.GXResourceProvider%22%2C%22GX_THEME%22%3A%22GeneXusX%22%2C%22_MODE%22%3A%22%22%2C%22Mode%22%3A%22%22%2C%22IsModified%22%3A%221%22%2C%22MESSAGE_Width%22%3A%22100%22%2C%22MESSAGE_Height%22%3A%22100%22%2C%22MESSAGE_Show%22%3A%22false%22%2C%22MESSAGE_Title%22%3A%22Title%22%2C%22MESSAGE_Message%22%3A%22This%20is%20the%20message%22%2C%22MESSAGE_Type%22%3A%22alert%22%2C%22MESSAGE_Icon%22%3A%22info%22%2C%22MESSAGE_Cls%22%3A%22%22%2C%22MESSAGE_Position%22%3A%22t%22%2C%22MESSAGE_Duration%22%3A1%2C%22MESSAGE_Visible%22%3A1%2C%22CAPTCHA1_Width%22%3A%22140%22%2C%22CAPTCHA1_Height%22%3A%2239%22%2C%22CAPTCHA1_Visible%22%3A1%7D&

问题：

我实际上如何通过代码将此参数复制/添加到我的 webrequest 中？

有什么办法吗？

顺便说一句，该站点的脚本乱七八糟，这些脚本很难从请求中使用的大多数参数中“找出”来源。

我希望有人可以帮助我。

提前致谢。

4

1 回答 1

0

我想通了。

问题是我必须为每个请求添加一个自定义标头。

webRequest.Headers.Add ("customheadertext and value");

现在提琴手正确显示了我的新请求，并添加了标头

POST http://sefaznet.ac.gov.br/sefazonline/servlet/hpfsincon?0898a16d81a4e94896958b17b52f252d,gx-no-cache=1354721123208 HTTP/1.1
GxAjaxRequest: 1
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.1 (KHTML, like Gecko)   Chrome/13.0.782.107 Safari/535.1
Content-Type: application/x-www-form-urlencoded
Referer: http://sefaznet.ac.gov.br/sefazonline/servlet/hpfsincon
Host: sefaznet.ac.gov.br
Cookie: GX_SESSION_ID=B8w8AQ4W%2FLzLHIpBor3JwJDQAWGy1xRqCYUMnzF14Yk%3D;     JSESSIONID=c19564cbebfab1911442fd64a0bb
Content-Length: 1291
Expect: 100-continue
Accept-Encoding: gzip, deflate
于 2012-12-05T17:41:24.693 回答