【转】Js 调用 WebService心得总结

页面：   <INPUT type="button" value="Button" οnclick="getdata()"><br>  <span id="div1" class="list"></span>   <script language=javascript>     setInterval(getdata,1000); //动态定时调用   </script>脚本：   <SCRIPT ID="clientEventHandlersJS" LANGUAGE="javascript">  function getdata()  {    var index=0;       docSubmit =new ActiveXObject("Microsoft.XMLDOM");    docSubmit.async = false;       docSubmit.load("http://localhost/WebApplication1/Service1.asmx/GetData?maxval=5");       docSubmit.loadXML(docSubmit.xml.replace(/</g,"<").replace(/>/g,">"));           var s="";      nodeList=docSubmit.documentElement.getElementsByTagName("ds");    for (i=0;i<nodeList.length;i++)    {     s=s+nodeList(i).selectSingleNode("KeShimch").text+'<br>';    }    div1.innerHtml ="";    div1.innerHTML=s;    div1.style.visibility="visible";         }      </script>

//如果返回是个字符串：  

<SCRIPT ID="clientEventHandlersJS" LANGUAGE="javascript">   function chang()   {             docSubmit =new ActiveXObject("Microsoft.XMLDOM");    docSubmit.async = false;       docSubmit.load("http://localhost/Advertisement/ADService.asmx/GetADCode?ADID=1");               var s=docSubmit.documentElement.text;          window.alert(s);        td_AD.innerHTML=s;           }      //setInterval(chang,2000);//间隔执行        </script>

注意：在fromework1.0和1.1是有区别的,在1.1的 machine.config （C:\WINNT\Microsoft.NET\Framework\v1.1.4322\CONFIG）,默认webservice去除了post,get方法你可在你的 machine.config 中加上 或者 只在 webServices 项目的 Web.config 的<system.web>里加上：<webServices>     <protocols>       <add name="HttpPost" />       <add name="HttpGet" />     </protocols></webServices>

否则，在ie地址栏输入 webServices 访问地址串时，提示：请求格式无法识别。还有docSubmit = new ActiveXObject("MSXML2.DOMDocument");  //1.0换成docSubmit =new ActiveXObject("Microsoft.XMLDOM");  //1.1-----------------------------------------------------------------------

web服务方法： 

 [WebMethod]  public string GetData(string maxval)  {      BaseClass.DbManagerSql dbm=new BaseClass.DbManagerSql();   string strSql="select * from s_KeShi where Keshidm>"+maxval;   DataSet ds=dbm.Query(strSql);   return ds.GetXml();  }

返回的xml数据： 

<?xml version="1.0" encoding="utf-8" ?> <string xmlns="http://tempuri.org/">

<NewDataSet> <ds> <KeShidm>6</KeShidm> <KeShimch>财务部</KeShimch> </ds> <ds> <KeShidm>7</KeShidm> <KeShimch>政工部</KeShimch> </ds><ds> <KeShidm>8</KeShidm> <KeShimch>安质部</KeShimch> </ds> <ds> <KeShidm>9</KeShidm> <KeShimch>电管部</KeShimch> </ds> <ds> <KeShidm>10</KeShidm> <KeShimch>运输公司</KeShimch> </ds> <ds> <KeShidm>11</KeShidm> <KeShimch>局长</KeShimch> </ds><ds> <KeShidm>202</KeShidm> <KeShimch>变电站</KeShimch></ds> </NewDataSet></string>

转载于:https://www.cnblogs.com/feima-lxl/archive/2010/06/08/1754392.html

相关资源：数据结构—成绩单生成器