XMLHTTP经典ASP发布 [英] XMLHTTP classic asp Post

问题描述

我正在使用Classic ASP Web应用程序.目的是在不让客户端等待响应的情况下进行耗时的数据处理.这导致使用xmlhttp对象异步发布.这是应该发布到所需URL的代码段.输入网址时，我可以直接点击此页面，并且所有数据处理都可以正常运行，但是我无法在vbscript中启动该发送请求.我选择VBscript是因为我正在进行验证，并确保数据在xmlhttp发布之前与在javascript中进行调用之前处于所需的格式.我现在在这里被卡住了一段时间，非常感谢您的帮助.

I am working with Classic ASP web application. Goal here is to do a time consuming data processing without having client to wait for a response. That resulted in using xmlhttp object async post. Here is the piece of code that should post to desired URL. I am able to hit this page directly when typing the url, and all data processing is functional, however i am unable to kick start this send request in my vbscript. I opted for VBscript because i am doing validations and making sure data is in desired format prior to xmlhttp post versus calling in javascript. I am jammed here for a while now, and truly will appreciate your help.

Dim objXMLHTTP
Set objXMLHTTP = Server.CreateObject("MSXML2.ServerXMLHTTP")
objXMLHTTP.Open "POST", "myurl", true
objXMLHTTP.Send
Set objXMLHTTP = nothing

-aFellowDevInNeed

-aFellowDevInNeed

推荐答案

如果您正在执行异步操作，则需要一个委托函数来处理请求的状态更改.当readyState为4时，请求已发送到服务器，并收到了完整的响应.我们还检查以确保请求为HTTP 200 OK.否则，可能是发生了错误，或者我们从服务器收到了部分响应:

If you're doing async, you will need a delegate function to handle the state change of the request. When readyState is 4, the request was sent to the server and a full response was received. We also check to make sure that the request was HTTP 200 OK; otherwise, there may have been an error, or we received a partial response from the server:

Dim objXML
Function objXML_onreadystatechange()
    If (objXML.readyState = 4) Then
        If (objXML.status = 200) Then
            Response.Write(objXML.responseText)
            Set objXML = Nothing
        End If
    End If
End Function

Set objXML = Server.CreateObject("MSXML2.ServerXMLHTTP")
Call objXML.open("POST", "http://localhost/test.asp", True)
objXML.onreadystatechange = GetRef("objXML_onreadystatechange")
objXML.send()

总而言之，在Classic ASP中进行异步调用不是100％.如果用户通过单击停止"，刷新"或关闭其浏览器来中止请求，则该请求将被视为中止.

This all being said, doing an async call in Classic ASP is not 100%. If the user aborts the request by hitting Stop, Refresh, or closes their browser, the request will be considered aborted.

http://msdn.microsoft.com/en-us/library/ms535874(v=vs.85).aspx

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