今天学习WCF,做了一个练习，最终的效果：
在数据库中创建表，插入数据，写好存储过程：
SET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGOCREATE TABLE [dbo].[Catalog]( [Catalog_nbr] [smallint] IDENTITY(1,1) NOT NULL, [CatalogName] [nvarchar](100) NOT NULL, CONSTRAINT [PK_Catalog] PRIMARY KEY CLUSTERED ( [Catalog_nbr] ASC)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]) ON [PRIMARY]GOINSERT INTO [dbo].[Catalog] VALUES (N'1120934567'),(N'1034577856'),(N'1145324576'),(N'1034567889'),(N'Adfgjfghgg'),(N'ae45654657'),(N'1dhjyuryr5'),(N'brt4543w34'),(N'brsa2346gh'),(N'345gthu865'),(N'3uettr43f5'),(N'dgewqrytr4'),(N'dgh6876532')GOSET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGO-- =============================================-- Author: Insus.NET-- Create date: 2013-01-18-- Description: Get Catalog data for web services。-- =============================================CREATE PROCEDURE [dbo].[usp_Catalog_GetCatalogForWcfService]( @PrefixText NVARCHAR(MAX), @Count INT)AS DECLARE @W NVARCHAR(MAX) = @PrefixText + '%'EXECUTE('SELECT TOP (' + @Count + ') [CatalogName],[Catalog_nbr] FROM [dbo].[Catalog] WHERE [CatalogName] LIKE ''' + @w +'''')GO
在站点下，添加一个目录WCF,然后添加一个WCF Service，取名为Catalog.svc
<%@ ServiceHost Language="C#" Debug="true" Service="Insus.NET.Catalog" CodeBehind="~/App_Code/Catalog.cs" %>
上面的HTML注意一下Service属性，它应该包含命名空间与类别，更多参考：http://www.cnblogs.com/insus/archive/2013/01/19/2867629.html
接下来，我们应该看到App_Code目录有两个文件ICatalog接口与Catalog.cs类文件。
using System;using System.Collections.Generic;using System.Linq;using System.Runtime.Serialization;using System.ServiceModel;using System.ServiceModel.Web;using System.Text;// NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "ICatalog" in both code and config file together.namespace Insus.NET{ [ServiceContract] public interface ICatalog { [OperationContract] [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json)] List<string> GetCatalog(string prefixText, int count); }}
using System;using System.Collections.Generic;using System.Data;using System.Linq;using System.Runtime.Serialization;using System.ServiceModel;using System.ServiceModel.Activation;using System.Text;using System.Web;using System.Web.Script.Serialization;// NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Catalog" in code, svc and config file together.namespace Insus.NET{ [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class Catalog : ICatalog { BusinessBase objBusinessBase = new BusinessBase(); public List<string> GetCatalog(string prefixText, int count) { Parameter[] parameter = { new Parameter ("@PrefixText",SqlDbType.NVarChar,-1,prefixText), new Parameter ("@Count",SqlDbType.Int,4,count) }; DataTable objDatTable = objBusinessBase.GetDataToDataSet("usp_Catalog_GetCatalogForWcfService", parameter).Tables[0]; List<string> catalog = new List<string>(); foreach (DataRow dataRow in objDatTable.Rows) { string item = AjaxControlToolkit.AutoCompleteExtender.CreateAutoCompleteItem(dataRow["CatalogName"].ToString(),dataRow["Catalog_nbr"].ToString()); catalog.Add(item); } return catalog; } }}
写好接口与类别之后，在站点添加一个.aspx，如Default.aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> Catalog: <asp:TextBox ID="TextBoxCatalog" runat="server"></asp:TextBox> <ajaxToolkit:AutoCompleteExtender ServiceMethod="GetCatalog" MinimumPrefixLength="1" ServicePath="~/WCF/Catalog.svc" TargetControlID="TextBoxCatalog" ID="AutoCompleteExtender1" runat="server" FirstRowSelected="false"> </ajaxToolkit:AutoCompleteExtender> </ContentTemplate> </asp:UpdatePanel> </form></body></html>
ok,我们可以试运行一下看看。此时看到的，没有任何效果喔，为何，难道上面写的代码有错误？
哦，原来我们少了在Web.config配置<system.serviceModel>，Insus.NET已经配置好，参考就是了：
<?xml version="1.0"?><!-- For more information on how to configure your ASP.NET application, please visit http://go.microsoft.com/fwlink/?LinkId=169433 --><configuration> <connectionStrings> <add name="InsusConnectionString" connectionString="Server=127.0.0.1\SQLSERVER2008R2;Initial Catalog=InsusSite;User ID=siteconnlogin;Password=aa43$98;Packet Size=8192;Max Pool Size=1000;" providerName="System.Data.SqlClient"/> </connectionStrings> <system.web> <compilation debug="false" targetFramework="4.0" /> <pages> <controls> <add namespace="AjaxControlToolkit" assembly="AjaxControlToolkit" tagPrefix="ajaxToolkit"/> </controls> </pages> </system.web> <system.serviceModel> <behaviors> <endpointBehaviors> <behavior name="CatalogAspNetAjaxBehavior"> <enableWebScript /> </behavior> </endpointBehaviors> <serviceBehaviors> <behavior name="CatalogBehavior"> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="true" /> </behavior> <behavior name=""> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> </serviceBehaviors> </behaviors> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> <services> <service behaviorConfiguration="CatalogBehavior" name="Insus.NET.Catalog"> <endpoint address="" binding="webHttpBinding" contract="Insus.NET.ICatalog" behaviorConfiguration="CatalogAspNetAjaxBehavior"> <identity> <dns value="localhost"/> </identity> </endpoint> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/> </service> </services> </system.serviceModel></configuration>