using System;using System.Collections;using System.ComponentModel;using System.Data;using System.Diagnostics;using System.Web;using System.Web.Services;using System.Data .SqlClient ;namespace WebService
{
/// <summary>
/// FeaturedService 的摘要说明。
/// </summary> public class FeaturedService : System.Web.Services.WebService { public FeaturedService() { //CODEGEN: 该调用是 ASP.NET Web 服务设计器所必需的 InitializeComponent(); } #region 组件设计器生成的代码 //Web 服务设计器所必需的 private IContainer components = null; /// <summary> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// </summary> private void InitializeComponent() { } /// <summary> /// 清理所有正在使用的资源。 /// </summary> protected override void Dispose( bool disposing ) { if(disposing && components != null) { components.Dispose(); } base.Dispose(disposing); } #endregion // WEB 服务示例 // HelloWorld() 示例服务返回字符串 Hello World // 若要生成，请取消注释下列行，然后保存并生成项目 // 若要测试此 Web 服务，请按 F5 键 [WebMethod] public string GetFeatured() { string strSelect; SqlConnection conPubs; SqlDataAdapter dadPubs; DataSet dstTitles; DataRow drowTitle; Random objRanNum; int intRanNum; strSelect = "SELECT Title, isNull( Notes, '' ) Notes From Titles"; conPubs = new SqlConnection( "server=(local);database=pubs;uid=sa;pwd=" ); dadPubs = new SqlDataAdapter( strSelect, conPubs ); dstTitles = new DataSet(); dadPubs.Fill( dstTitles, "Titles" ); objRanNum = new Random(); intRanNum = objRanNum.Next( 0, dstTitles.Tables["Titles"].Rows.Count ); drowTitle = dstTitles.Tables["Titles"].Rows[intRanNum]; return drowTitle["Title"] + " - " + drowTitle["Notes"]; } }
}调用页面
<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="WebService.WebForm1" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" ><HTML> <HEAD> <title>WebForm1</title> <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1"> <meta name="CODE_LANGUAGE" Content="C#"> <meta name="vs_defaultClientScript" content="JavaScript"> <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5"> <script> var intCallID = 0;function Init(){ GetNewFeatured(); setInterval( "GetNewFeatured()", 5000 ) }function GetNewFeatured(){ service.useService("FeaturedService.asmx?WSDL","FeaturedService"); intCallID = service.FeaturedService.callService( "GetFeatured" );}function Service_Result(){ if (event.result.error) { divFeatured.innerText = event.result.errorDetail.string; } else { divFeatured.innerText = event.result.value; }} </script> </HEAD> <body MS_POSITIONING="GridLayout" onload="Init()"> <form id="Form1" method="post" runat="server"> <table width="600"> <tr> <td valign="top"> <h2>Welcome to this Web Site!</h2> Browse this Web site to get great deals on the latest books! </td> <td> <div id="service" style="behavior:url(webservice.htc)" onresult="Service_Result()"></div> <div id="divFeatured" style="BORDER-RIGHT:darkgreen 1px solid;PADDING-RIGHT:10px;BORDER-TOP:darkgreen 1px solid;PADDING-LEFT:10px;PADDING-BOTTOM:10px;BORDER-LEFT:darkgreen 1px solid;WIDTH:200px;PADDING-TOP:10px;BORDER-BOTTOM:darkgreen 1px solid"> </div> </td> </tr> </table> </form> </body></HTML>实现效果
还有就是要注意那个webservice.htc文件.....
一定要放在程序目录下...