学步园

首先，使用javascript调用webservice原理上同开发ajax应用差不多，只不过现在发送的是SOAP协议数据，所以必须要先搞清楚服务wsdl中描述的结构，在发送时应在http header中添加sapaction（针对不同的java webservice实现略有不同）。网上很多javascript的webservce实现，不过大多都针对于c#编写的webservice，大部分不能照搬到java中使用，soapclient.js（@author: Matteo Casati, Ihar Voitka - http://www.guru4.net/）就是其中一个，经过改造之后可以使用了。

测试环境 ： jdk1.5 + xfire + soap1.2.

对原作修改如下：

1. 将c#响应Result结尾 改为 Response

 2. 添加了 getSingleValue方法兼容IE和FF.

注：还未用于生产环境，还需进行测试后使用。

修正后soapclient.js

/*****************************************************************************/<br /> Javascript "SOAP Client" library<br /> @version: 1.4 - 2005.12.10<br /> @author: Matteo Casati, Ihar Voitka - http://www.guru4.net/<br /> @description: (1) SOAPClientParameters.add() method returns 'this' pointer.<br /> (2) "_getElementsByTagName" method added for xpath queries.<br /> (3) "_getXmlHttpPrefix" refactored to "_getXmlHttpProgID" (full<br /> ActiveX ProgID).</p> <p> @version: 1.3 - 2005.12.06<br /> @author: Matteo Casati - http://www.guru4.net/<br /> @description: callback function now receives (as second - optional - parameter)<br /> the SOAP response too. Thanks to Ihar Voitka.</p> <p> @version: 1.2 - 2005.12.02<br /> @author: Matteo Casati - http://www.guru4.net/<br /> @description: (1) fixed update in v. 1.1 for no string params.<br /> (2) the "_loadWsdl" method has been updated to fix a bug when<br /> the wsdl is cached and the call is sync. Thanks to Linh Hoang.</p> <p> @version: 1.1 - 2005.11.11<br /> @author: Matteo Casati - http://www.guru4.net/<br /> @description: the SOAPClientParameters.toXML method has been updated to allow<br /> special characters ("<", ">" and "&"). Thanks to Linh Hoang.<br /> @version: 1.0 - 2005.09.08<br /> @author: Matteo Casati - http://www.guru4.net/<br /> @notes: first release.<br /> /*****************************************************************************/<br /> function SOAPClientParameters()<br /> {<br /> var _pl = new Array();<br /> this.add = function(name, value)<br /> {<br /> _pl[name] = value;<br /> return this;<br /> }<br /> this.toXml = function()<br /> {<br /> var xml = "";<br /> for(var p in _pl)<br /> {<br /> if(typeof(_pl[p]) != "function")<br /> xml += "<" + p + ">" + _pl[p].toString().replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">") + "</" + p + ">";<br /> }<br /> return xml;<br /> }<br /> }<br /> function SOAPClient() {}<br /> SOAPClient.invoke = function(url, method, parameters, async, callback)<br /> {<br /> if(async)<br /> SOAPClient._loadWsdl(url, method, parameters, async, callback);<br /> else<br /> return SOAPClient._loadWsdl(url, method, parameters, async, callback);<br /> }<br /> // private: wsdl cache<br /> SOAPClient_cacheWsdl = new Array();<br /> // private: invoke async<br /> SOAPClient._loadWsdl = function(url, method, parameters, async, callback)<br /> {<br /> // load from cache?<br /> var wsdl = SOAPClient_cacheWsdl[url];<br /> if(wsdl + "" != "" && wsdl + "" != "undefined")<br /> return SOAPClient._sendSoapRequest(url, method, parameters, async, callback, wsdl);<br /> // get wsdl<br /> var xmlHttp = SOAPClient._getXmlHttp();<br /> xmlHttp.open("POST", url + "?wsdl", async);<br /> if(async)<br /> {<br /> xmlHttp.onreadystatechange = function()<br /> {<br /> if(xmlHttp.readyState == 4)<br /> SOAPClient._onLoadWsdl(url, method, parameters, async, callback, xmlHttp);<br /> }<br /> }<br /> xmlHttp.send(null);<br /> if (!async)<br /> return SOAPClient._onLoadWsdl(url, method, parameters, async, callback, xmlHttp);<br /> }<br /> SOAPClient._onLoadWsdl = function(url, method, parameters, async, callback, req)<br /> {<br /> var wsdl = req.responseXML;<br /> SOAPClient_cacheWsdl[url] = wsdl; // save a copy in cache<br /> return SOAPClient._sendSoapRequest(url, method, parameters, async, callback, wsdl);<br /> }<br /> SOAPClient._sendSoapRequest = function(url, method, parameters, async, callback, wsdl)<br /> {<br /> // get namespace<br /> var ns = (wsdl.documentElement.attributes["targetNamespace"] + "" == "undefined") ? wsdl.documentElement.attributes.getNamedItem("targetNamespace").nodeValue : wsdl.documentElement.attributes["targetNamespace"].value;<br /> // build SOAP request<br /> var sr =<br /> "<?xml version=/"1.0/" encoding=/"utf-8/"?>" +<br /> "<soap:Envelope " +<br /> "xmlns:xsi=/"http://www.w3.org/2001/XMLSchema-instance/" " +<br /> "xmlns:xsd=/"http://www.w3.org/2001/XMLSchema/" " +<br /> "xmlns:soap=/"http://schemas.xmlsoap.org/soap/envelope//">" +<br /> "<soap:Body>" +<br /> "<" + method + " xmlns=/"" + ns + "/">" +<br /> parameters.toXml() +<br /> "</" + method + "></soap:Body></soap:Envelope>";<br /> // send request<br /> var xmlHttp = SOAPClient._getXmlHttp();<br /> xmlHttp.open("POST", url, async);<br /> var soapaction = ((ns.lastIndexOf("/") != ns.length - 1) ? ns + "/" : ns) + method;<br /> xmlHttp.setRequestHeader("SOAPAction", soapaction);<br /> xmlHttp.setRequestHeader("Content-Type", "text/xml; charset=utf-8");<br /> if(async)<br /> {<br /> xmlHttp.onreadystatechange = function()<br /> {<br /> if(xmlHttp.readyState == 4)<br /> SOAPClient._onSendSoapRequest(method, async, callback, wsdl, xmlHttp);<br /> }<br /> }<br /> xmlHttp.send(sr);<br /> if (!async)<br /> return SOAPClient._onSendSoapRequest(method, async, callback, wsdl, xmlHttp);<br /> }<br /> SOAPClient._onSendSoapRequest = function(method, async, callback, wsdl, req)<br /> {<br /> var o = null;<br /> var nd = SOAPClient._getElementsByTagName(req.responseXML, method + "Response");<br /> if( 0 == nd.length ) {<br /> nd = SOAPClient._getElementsByTagName(req.responseXML, method + "Result");<br /> }<br /> if(nd.length == 0)<br /> {<br /> if(req.responseXML.getElementsByTagName("faultcode").length > 0)<br /> throw new Error(500, req.responseXML.getElementsByTagName("faultstring")[0].childNodes[0].nodeValue);<br /> }<br /> else<br /> o = SOAPClient._soapresult2object(nd[0], wsdl);<br /> if(callback)<br /> if(document.all) callback(o, req.responseText);<br /> else callback(o, req.responseXML);<br /> if(!async)<br /> return o;<br /> }<br /> // private: utils<br /> SOAPClient._getElementsByTagName = function(document, tagName)<br /> {<br /> try<br /> {<br /> if(document.all) {<br /> // trying to get node omitting any namespaces (latest versions of MSXML.XMLDocument)<br /> return document.selectNodes(".//*[local-name()=/""+ tagName +"/"]");<br /> }else {<br /> return document.evaluate(".//*[local-name()=/""+ tagName +"/"]", document, null, XPathResult.ANY_TYPE,null);<br /> }<br /> }<br /> catch (ex) {}<br /> // old XML parser support<br /> return document.getElementsByTagName(tagName);<br /> }<br /> SOAPClient._soapresult2object = function(node, wsdl)<br /> {<br /> return SOAPClient._node2object(node, wsdl);<br /> }<br /> SOAPClient._node2object = function(node, wsdl)<br /> {<br /> // null node<br /> if(node == null)<br /> return null;<br /> // text node<br /> if(node.nodeType == 3 || node.nodeType == 4)<br /> return SOAPClient._extractValue(node, wsdl);<br /> // leaf node<br /> if (node.childNodes.length == 1 && (node.childNodes[0].nodeType == 3 || node.childNodes[0].nodeType == 4))<br /> return SOAPClient._node2object(node.childNodes[0], wsdl);<br /> var isarray = SOAPClient._getTypeFromWsdl(node.nodeName, wsdl).toLowerCase().indexOf("arrayof") != -1;<br /> // object node<br /> if(!isarray)<br /> {<br /> var obj = null;<br /> if(node.hasChildNodes())<br /> obj = new Object();<br /> for(var i = 0; i < node.childNodes.length; i++)<br /> {<br /> var p = SOAPClient._node2object(node.childNodes[i], wsdl);<br /> obj[node.childNodes[i].nodeName] = p;<br /> }<br /> return obj;<br /> }<br /> // list node<br /> else<br /> {<br /> // create node ref<br /> var l = new Array();<br /> for(var i = 0; i < node.childNodes.length; i++)<br /> l[l.length] = SOAPClient._node2object(node.childNodes[i], wsdl);<br /> return l;<br /> }<br /> return null;<br /> }<br /> SOAPClient._extractValue = function(node, wsdl)<br /> {<br /> var value = node.nodeValue;<br /> switch(SOAPClient._getTypeFromWsdl(node.parentNode.nodeName, wsdl).toLowerCase())<br /> {<br /> default:<br /> case "s:string":<br /> return (value != null) ? value + "" : "";<br /> case "s:boolean":<br /> return value+"" == "true";<br /> case "s:int":<br /> case "s:long":<br /> return (value != null) ? parseInt(value + "", 10) : 0;<br /> case "s:double":<br /> return (value != null) ? parseFloat(value + "") : 0;<br /> case "s:datetime":<br /> if(value == null)<br /> return null;<br /> else<br /> {<br /> value = value + "";<br /> value = value.substring(0, value.lastIndexOf("."));<br /> value = value.replace(/T/gi," ");<br /> value = value.replace(/-/gi,"/");<br /> var d = new Date();<br /> d.setTime(Date.parse(value));<br /> return d;<br /> }<br /> }<br /> }<br /> SOAPClient._getTypeFromWsdl = function(elementname, wsdl)<br /> {<br /> var ell = wsdl.getElementsByTagName("s:element"); // IE<br /> if(ell.length == 0)<br /> ell = wsdl.getElementsByTagName("element"); // MOZ<br /> for(var i = 0; i < ell.length; i++)<br /> {<br /> if(ell[i].attributes["name"] + "" == "undefined") // IE<br /> {<br /> if(ell[i].attributes.getNamedItem("name") != null && ell[i].attributes.getNamedItem("name").nodeValue == elementname && ell[i].attributes.getNamedItem("type") != null)<br /> return ell[i].attributes.getNamedItem("type").nodeValue;<br /> }<br /> else // MOZ<br /> {<br /> if(ell[i].attributes["name"] != null && ell[i].attributes["name"].value == elementname && ell[i].attributes["type"] != null)<br /> return ell[i].attributes["type"].value;<br /> }<br /> }<br /> return "";<br /> }<br /> // private: xmlhttp factory<br /> SOAPClient._getXmlHttp = function()<br /> {<br /> try<br /> {<br /> if(window.XMLHttpRequest)<br /> {<br /> var req = new XMLHttpRequest();<br /> // some versions of Moz do not support the readyState property and the onreadystate event so we patch it!<br /> if(req.readyState == null)<br /> {<br /> req.readyState = 1;<br /> req.addEventListener("load",<br /> function()<br /> {<br /> req.readyState = 4;<br /> if(typeof req.onreadystatechange == "function")<br /> req.onreadystatechange();<br /> },<br /> false);<br /> }<br /> return req;<br /> }<br /> if(window.ActiveXObject)<br /> return new ActiveXObject(SOAPClient._getXmlHttpProgID());<br /> }<br /> catch (ex) {}<br /> throw new Error("Your browser does not support XmlHttp objects");<br /> }<br /> SOAPClient._getXmlHttpProgID = function()<br /> {<br /> if(SOAPClient._getXmlHttpProgID.progid)<br /> return SOAPClient._getXmlHttpProgID.progid;<br /> var progids = ["Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP"];<br /> var o;<br /> for(var i = 0; i < progids.length; i++)<br /> {<br /> try<br /> {<br /> o = new ActiveXObject(progids[i]);<br /> return SOAPClient._getXmlHttpProgID.progid = progids[i];<br /> }<br /> catch (ex) {};<br /> }<br /> throw new Error("Could not find an installed XML parser");<br /> }<br /> /* 以下为添加方法 */<br /> SOAPClient.getSingleValue = function(repXML , name) {<br /> if(document.all) {<br /> var xmldom = new ActiveXObject("Microsoft.XMLDOM");<br /> xmldom.async = false;<br /> xmldom.loadXML(repXML);<br /> return xmldom.getElementsByTagName(name)[0].text;<br /> }else {<br /> return repXML.getElementsByTagName(name)[0].textContent;<br /> }<br /> }