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 >

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