CODEWITHSUNDEEP
ajaxjsonasp-classic
Ruben Teixeira
Ruben Teixeira

Reputation: 574

Request.Form() not working

I have a file intended to send data to server via Ajax, I've tried some libraries but I cant get them to work so I´m trying the simple Request.Form() method in the ASP server file, not working either.

the Ajax post:

var xmlhttp = new XMLHttpRequest();
xmlhttp.open("POST", "http://localhost/serv/sync.asp", true);
DataToSend = "id=1";                
xmlhttp.addEventListener("load", function () {
    if(xmlhttp.status === 200){
        //event handler
    };
}, false); 
xmlhttp.send(DataToSend);

the ASP file:

<%@language=vbscript%>
<%
    value = Request.Form("id")
    Response.ContentType = "text/xml"
    response.write (value) 
%>

Wat's the problem with this? I've checked the Post in console and its working, but I can't catch the values on the server side.

The original idea was to send a Json string, parse it in the server and do the dataBase inserts, but couldn't get it to work, does anyone have a working snippet or a link to a working Json parsing method in Classic ASP? Thanks.

Note: I've tried changing the server file to a different folder due to threading issues, and changing the URL to "http://127.0.0.1/serv/sync.asp".

Upvotes: 0

Views: 645

Answers (1)

Ricardo Souza
Ricardo Souza

Reputation: 16456

I've used this with success:

JS:

if (window.XMLHttpRequest) {
    httprequest = new XMLHttpRequest();
    httprequest.texto = busca.id;
} else if(window.ActiveXObject) {
    httprequest = new ActiveXObject("Microsoft.XMLHTTP");
    httprequest.texto = busca.id;
} else {
    alert("Seu navegador não suporta Ajax.");
    return false;
}

if (httprequest.readyState == 4 || httprequest.readyState == 0) {
    var busca = escape("texto texto texto");

    httprequest.open("POST", "../busca_ajax.asp", true);
    httprequest.onreadystatechange = retornaValores; 
    httprequest.send("busca=" + busca + "&teste=2");
}

function retornaValores() {
    if (httprequest.readyState == 4) {
        alert(httprequest.responseText);        
    }
}

ASP:

 dim busca
 busca = trim(request("busca"))

 response.write busca

Edit:

if you can, I recommend you to use jQuery. It eases the process a lot:

$.ajax({
    url: "lista.asp",
    data: { 'ajax': 's', 'dados': '{"id": 123, "nome":"teste"}'},
    cache: false,
    dataType: "json",
    success: function(dados) {
        alert(dados);
    },
    error: function() {
        alert("ERRO!");
    }
});

ASP:

dim ajax, id
ajax = request.form("ajax")
dados = request.form("dados") ' this is a JSON string

response.write dados

Upvotes: 1

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