Welcome

首页 / 脚本样式 / Ajax / js跨域调用WebService的简单实例

步骤1.   在web.config中的system.web节点里加入

<!--此节点可允许脚本跨域调用webservice--><webServices> <protocols><add name="HttpPost"/><add name="HttpGet"/> </protocols></webServices><!--此节点可允许脚本跨域调用webservice-->
步骤2. webservice代码

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Services;using System.Web.Mvc;namespace WebService{/// <summary>/// WebService1 的摘要说明/// </summary>[WebService(Namespace = "http://tempuri.org/")][WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)][System.ComponentModel.ToolboxItem(false)]// 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 WebService1 : System.Web.Services.WebService{[ValidateInput(false)][WebMethod(Description = "测试")]public void getDBTableInfos(string EnterpriseCode){HttpContext.Current.Response.ContentType = "application/json;charset=utf-8";string jsonCallBackFunName = string.Empty;jsonCallBackFunName = HttpContext.Current.Request.Params["jsoncallback"].ToString();HttpContext.Current.Response.Write(jsonCallBackFunName + "({ "Result": "" + EnterpriseCode + "" })");} }} 
步骤3. html页面部分

<!DOCTYPE html><html><head><title>Index</title><script src="http://www.cnblogs.com/Scripts/jquery-1.5.1.js" type="text/javascript"></script><script type="text/javascript">$(function () {$("#btnSubmit").click(function () {var EnterpriseCode = "39"; //企业代码var dataStr = "EnterpriseCode=" + EnterpriseCode;$.ajax({type: "get",url: "http://xxx/xxx.asmx/AntiWebQuery_Ajax?jsoncallback?",dataType: "jsonp",jsonp: "jsoncallback",data: dataStr,success: function (result) {//返回结果alert(result.Result);}});});});</script></head><body><div><input id="btnSubmit" type="button" value="查询" /></div></body></html> 
以上就是小编为大家带来的js跨域调用WebService的简单实例的全部内容了,希望对大家有所帮助,多多支持脚本之家~