经过几天研究，终于可以再单个js文件(纯JavaScript，不涉及AJax控件)调用WebServices了。现将调用方法及注意事项分享给大家
1、WebServices文件源码WebService.asmx
using System;using System.Collections;using System.Linq;using System.Web;using System.Web.Services;using System.Web.Services.Protocols;using System.Xml.Linq;
/// <summary>
///WebService 的摘要说明
/// </summary>[WebService(Namespace = "http://tempuri.org/")][WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]//若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。 // [System.Web.Script.Services.ScriptService]public class WebService : System.Web.Services.WebService {
public WebService () {
//如果使用设计的组件，请取消注释以下行 //InitializeComponent(); 
} [WebMethod] public string GetColumns(string strParameter) { return "{header: \"用户编号\",dataIndex: \"UserCode\",tooltip: \"用户编号\",sortable: true}, {header: \"用户名称\",dataIndex: \"UserName\",tooltip: \"用户名称\",sortable: true}, {header: \"用户类型\",dataIndex: \"UserType\",tooltip: \"用户类型\",sortable: true}, {header: \"性别\",dataIndex: \"Sex\",tooltip: \"性别\",sortable: true}, {header: \"职位名称\",dataIndex: \"PositionName\",tooltip: \"职位名称\",sortable: true}, {header: \"电话\",dataIndex: \"Telephone\",tooltip: \"电话\",sortable: true}, {header: \"邮箱\",dataIndex: \"Email\",tooltip: \"邮箱\",sortable: true}, {header: \"地址\",dataIndex: \"Address\",tooltip: \"地址\",sortable: true}, {header: \"部门名称\",dataIndex: \"DepartName\",tooltip: \"部门名称\",sortable: true}, {header: \"备注\",dataIndex: \"Remark\",tooltip: \"备注\",sortable: true}"; ; } }2、JavaScript文件源码 ClientLibrary.js
var objColoms; CallWebServiceMethod(); //调用WebServicesfunction CallWebServiceMethod(data){ var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); var url="http://localhost:6808/JSWebServices/WebService.asmx/GetColumns?strParameter=zhangps"; xmlhttp.Open("Get",url, false); xmlhttp.SetRequestHeader("Content-Type","text/xml; charset=utf-8"); xmlhttp.SetRequestHeader("SOAPAction","http://tempuri.org/GetColumns"); xmlhttp.Send(data); var result = xmlhttp.status; if(result==200) { var responseText = xmlhttp.responseXML.text; objColoms = "[sm," + responseText + "]"; } xmlhttp = null; }//var extColumModel = new Ext.grid.ColumnModel(eval(objColoms));3、Aspx页面或Html页面源码Default.aspx（近起到引用JavaScript文件作用）
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>JavaScript调用WebServices</title> <script language="javascript" src="ClientLibrary.js" type="text/javascript"></script></head><body> <form id="form1" runat="server"> <div> 纯JavaScript调用WebServices例子 <!--注意：需要在WebConfig中加入以下配置： <system.web> <webServices> <protocols> <add name="HttpSoap" /> <add name="HttpPost" /> <add name="HttpGet" /> <add name="Documentation" /> </protocols> </webServices> </system.web> //--> </div> </form></body></html>4、注意事项：Web.Config中必须做一下配置
<system.web> <webServices> <protocols> <add name="HttpSoap" /> <add name="HttpPost" /> <add name="HttpGet" /> <add name="Documentation" /> </protocols> </webServices></system.web>