客户端访问WebService的WSDL文件

问：

Hi  All

I have requirment to access web service wsdl (newCarConfig.cfc?wsdl) file through javascript with out using webservice.htc file. Is there any way to achive this functionality

Thanks in advance

答：

you can read the service wsdl just as a XML file, using AJAX can achieve easily.

The following example (from http://www.captain.at/howto-ajax-process-xml.php) demonstrates a simple AJAX JavaScript for requesting XML data from a server and displaying the response in a HTML-table. The server-side script is a simple PHP script, which actually just sends some XML data. I think it can lead you to achieve what your needs: 

<script type="text/javascript" language="javascript">
   var http_request = false;
   function makeRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
            http_request.overrideMimeType('text/xml');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      http_request.onreadystatechange = alertContents;
      http_request.open('GET', url + parameters, true);
      http_request.send(null);
   }

   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {

            var xmldoc = http_request.responseXML;
            var root = xmldoc.getElementsByTagName('root').item(0);
            
            for (var iNode = 0; iNode < root.childNodes.length; iNode++) {
               var node = root.childNodes.item(iNode);
               for (i = 0; i < node.childNodes.length; i++) {
                  var sibl = node.childNodes.item(i);
                  var len = parseInt(sibl.childNodes.length / 2);
                  var arr = new Array(len);
                  var cnt = 0;
                  for (x = 0; x < sibl.childNodes.length; x++) {
                     var sibl2 = sibl.childNodes.item(x);
                     var sibl3;
                     if (sibl2.childNodes.length > 0) {
                        sibl3 = sibl2.childNodes.item(0);
                        arr[cnt] = sibl3.data;   
                        cnt++;
                     }
                  }
                  addrow("mytable", arr);
               }
            }
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   function do_xml() {
      makeRequest('xml.php', '?test=2');
   }
   function addrow(tablename, arr) {
   var tbl = document.getElementById(tablename);
   var lastRow = tbl.rows.length;
   var row = tbl.insertRow(lastRow);
      for (r = 0; r < arr.length; r++) {   
         var cell = row.insertCell(r);
         cell.innerHTML = arr[r];
      }
   }

</script>

<input type="button" name="button" value="GET XML" 
   onclick="javascript:do_xml();">

<br><br>
Table filled with data requested from the server:<br>
<table border="1" id="mytable">
</table>