Simulate a Form POST Request Using WinInet
2001-11-22 01:27
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这是MSDN中的一篇文章，说的是用WinInet来模拟表单的发送，用的是VC及SDK两种方法实现的，用文中方法便可以实现直接将表单发送到WEB服务器上了，比直接在网页上填表高明多了。原文较短且很简单，就没翻译，直接帖上来了，没弄明白MSDN中的算转帖还是算收藏，反正哪位仁兄能用上就行了HOWTO: Simulate a Form POST Request Using WinInetLast reviewed: February 10, 1998Article ID: Q165298 |
| The information in this article applies to: The Microsoft Foundation Classes (MFC) included with: - Microsoft Visual C++, 32-bit Editions, versions 4.2, 5.0 Microsoft Internet Client SDK, versions 4.0, 4.01 SUMMARYTo properly simulate a Form submission using WinInet, you need to send a header that indicates the proper Content-Type. For Forms, the proper Content-Type header is:MORE INFORMATIONIn many cases, the server does not respond appropriately if a Content-Type is not specified. For example, the Active Server Pages component of IIS 3.0 actually checks this header specifically for 'application/x-www-form- urlencoded' before adding form variables to the "Request.Form" object. This MIME/Content-Type indicates that the data of the request is a list of URL- encoded form variables. URL-encoding means that space character (ASCII 32) is encoded as '+', special character such '!' encoded in hexadecemal form as '%21'.Here is a snippet of code that uses the MFC WinInet classes to simulate a Form POST request: Without MFC, the same code translates to straight SDK calls as follows: REFERENCESFor more information on URL-encoding and the format of a Form POST request, see section 8.2 in RFC 1866. |
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