AJAX - 经典 ASP - 发布表单

Question

I have a TEST.ASP with this code:我有一个带有以下代码的 TEST.ASP：

<HTML>
<HEAD>
    <SCRIPT src="ajaxScript.js" type="text/javascript"></SCRIPT>
</HEAD>
<BODY>
    <FORM action="action_page.asp" method="post">
        First Name:<BR>
        <INPUT type="text" name="FName"><BR>
        Last Name:<BR>
        <INPUT type="text" name="LName"><BR>
        <INPUT type="submit" value="Submit">
        <BUTTON type="button" onClick="loadXMLDoc('action_page.asp',this.form);">GoGoGo!</BUTTON>
    </FORM>
    <DIV id="msgBoxDiv">TEST!!</DIV>
</BODY>
</HTML>

The Javascript file that is called (ajaxScript.js) has this code:被调用的 Javascript 文件 (ajaxScript.js) 具有以下代码：

var req; // global variable to hold request object

function processReqChange()
{
    if (req.readyState == 4 && req.status == 200){document.getElementById("msgBoxDiv").innerHTML = req.responseText;}
}

function loadXMLDoc(url, params)
{
    if(window.XMLHttpRequest)
    {
        try
        {
            req = new XMLHttpRequest();
        } catch(e)
            {
                req = false;
            }
    }
    else
    {
        req = false;
    }

    if(req)
    {
        var formData = new FormData(params);

        req.onreadystatechange = processReqChange;
        req.open("POST", url, true);
        req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        req.send(formData);
        return true;
    }
    return false;
}

And my "action_page.asp" to receive the parameters is like so:我的“action_page.asp”接收参数是这样的：

<%
    vRF1 = request.Form("FName")
    vRF2 = request.Form("LName")
%>

<HTML>
    <HEAD>

    </HEAD>
    <BODY>
        First:<%=vRF1%><BR>
        Last:<%=vRF2%>
    </BODY>
</HTML>

If I make the normal submit (submit button), everything goes as expected: it shows a new page with the values of the form.如果我正常提交（提交按钮），一切都会按预期进行：它显示一个包含表单值的新页面。

BUT... if I try to read the target ASP with AJAX (gogogo button), I can't send the form to the target page.但是...如果我尝试使用 AJAX（gogogo 按钮）读取目标 ASP，我无法将表单发送到目标页面。 I do receive the target page, but without the supposed values.我确实收到了目标页面，但没有预期的值。 I get this:我明白了：
Result page结果页

If I change "req.send(formData);"如果我更改“req.send(formData);” for " req.send("FName="+1+"&LName=QWER");", everything works well.对于“ req.send("FName="+1+"&LName=QWER");”，一切正常。

I've read that to send the entire form (like the "usual" post do), I just need to make "var formData = new FormData(params);"我已经读过要发送整个表单（就像“通常的”帖子一样），我只需要制作“var formData = new FormData(params);” where params would be the form object, and then send the FormData(params).其中 params 将是表单对象，然后发送 FormData(params)。

What may I be doing wrong here?我可能在这里做错了什么？

Answer 1

I didn't want to leave this without an answer.我不想在没有答案的情况下离开这个。

Lankymart gave the path to the right answer... the truth is, when I submitted the "new FormData(formID)" I was sending in multipart/form-data and not application/x-www-form-urlencoded as I was declaring. Lankymart 给出了正确答案的路径......事实是，当我提交“新 FormData（formID）”时，我发送的是 multipart/form-data 而不是 application/x-www-form-urlencoded，因为我正在声明.

SO... We can make the hypothesis Lankymart indicated (application/x-www-form-urlencoded).所以...我们可以做出 Lankymart 指出的假设（application/x-www-form-urlencoded）。 In other words, you just take my initial question, and in req.send();换句话说，你只需要回答我最初的问题，然后在 req.send(); 中。 you have to form the string of the parameters to pass (just like in a GET request).您必须形成要传递的参数字符串（就像在 GET 请求中一样）。 "name1="+param1+"&name2="+param2. "name1="+param1+"&name2="+param2. I opted by this one, because, for what I needed, this was more than enough.我选择了这个，因为，对于我所需要的，这已经绰绰有余了。

OR... If we do need/wish to send the form - req.send(formData)... that will produce a multipart/form-data (check an example of the format of a multipart/form-data here: http://www.codeproject.com/Articles/1125/Advanced-ASP-Uploader ) In this case... you have to build a parser for the info.或者...如果我们确实需要/希望发送表单 - req.send(formData)... 这将产生一个 multipart/form-data（在这里查看 multipart/form-data 格式的示例： http ://www.codeproject.com/Articles/1125/Advanced-ASP-Uploader ）在这种情况下......你必须为信息构建一个解析器。 Here is what I've coded (just to try a thing or two):这是我编写的代码（只是为了尝试一两件事）：

Function StoreNameAndValues(tempVarArray)
    Dim tempVar

    for i = 1 to ubound(tempVarArray)-1
        if tempVarArray(i)<>"" then
            tempVar=Split(tempVarArray(i), """")

            if ubound(tempVar)>1 then
                postNamesArray(i-1)=tempVar(1)
                postValuesArray(i-1)=StripString(tempVar(2),CHR(13)&CHR(10))
            End if
        End if
    next
End Function


tempVar=Request.TotalBytes
tempVar1=Request.BinaryRead(tempVar)

tempVar1=SimpleBinaryToString(tempVar1)

separator=Split(tempVar1, CHR(13)&CHR(10))(0)
tempVar2=Split(tempVar1,separator)

postArgumentsSize=ubound(tempVar2)-1
Dim postNamesArray()
Dim postValuesArray()
ReDim Preserve postNamesArray(postArgumentsSize)
ReDim Preserve postValuesArray(postArgumentsSize)

StoreNameAndValues(tempVar2)

In this example, I've build a very rudimentary parser... it's not prepared for things like file upload, but this is just an example of what to do.在这个例子中，我构建了一个非常基本的解析器......它没有为文件上传之类的事情做好准备，但这只是一个例子。

Hope I didn't make any big mistake... and it will help someone.希望我没有犯任何大错误......它会帮助某人。

Answer 2

After searching everywhere and trying various things this post finally got me on the right track.在到处搜索并尝试各种事情之后，这篇文章终于让我走上了正轨。 My classic asp page simply wouldn't read the ajax form post that I was sending to it.我的经典 asp 页面根本无法读取我发送给它的 ajax 表单帖子。

What finally made it work is the contentType: 'application/x-www-form-urlencoded; charset=UTF-8',最终使它起作用的是contentType: 'application/x-www-form-urlencoded; charset=UTF-8', contentType: 'application/x-www-form-urlencoded; charset=UTF-8', in the ajax function. contentType: 'application/x-www-form-urlencoded; charset=UTF-8',在ajax函数中。 So this is how I finally got to send the form and the classic asp page reads all the values like it should.所以这就是我最终发送表单和经典 asp 页面读取所有值的方式。

    $('#subdel').click(function () {
      // get values outside of the form
      var tDate = $('#datepicker').val();
      var tCID = $('#Client').val();
      var vFD = $('#dataentry').serialize();
      // add those values to the form
      vFD = vFD + '&C=' + tCID;
      vFD = vFD + '&D=' + tDate;
      $(function() {
         var request = $.ajax({
            url: 'api/saveDLR.asp',
            type: 'POST',
            data: vFD,
            processData: false,
            contentType: false,
            contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
            cache: false,
            success: function (response) {
               // hide some parts of the page, and then show the result from saving the form
               $('#cldel').hide("slow");
               $('#endel').hide("slow");
               $("#encon").html( response );
               $('#encon').show("slow");
               // refresh a table after the form was processed
               $(function() {
                   var request = $.ajax({
                   url: "/api/getDelClient.asp?C=" + tCID + "&D=" + tDate,
                   type: "GET",
                   dataType: "html",
                   success: function (response) {
                      $("#cldel").html( response );
                      $('#cldel').show("slow");
                   },
                   error: function (response) {
                      alert(response.responseText);
                   }
                   });
               });
            },
            error: function (response) {
                  alert(response.responseText);
            }
         });
      });
   });

Maybe it (still) can help somebody else.也许它（仍然）可以帮助其他人。

The asp page simply reads the form data with Request.Form asp页面只是简单地用Request.Form读取表单数据

<%  For Each item In Request.Form
      Response.Write item & " - " & Request.Form(item) & "<br/>"
    Next
%>

AJAX - 经典 ASP - 发布表单

问题描述

2 个解决方案

解决方案1
3 已采纳 2016-04-20 01:40:43

解决方案2
0 2020-08-14 02:11:25

AJAX - 经典 ASP - 发布表单

问题描述

2 个解决方案

解决方案1 3 已采纳 2016-04-20 01:40:43

解决方案2 0 2020-08-14 02:11:25

解决方案1
3 已采纳 2016-04-20 01:40:43

解决方案2
0 2020-08-14 02:11:25