无废话WCF入门教程六[一个简单的Demo]

朋友炒股两个月赚了10万,我帮他推广一下公众号,把钱用来投资总比放银行连通货膨胀都跑不过里强, 硬核离职,在家炒股 ,这是他每天的日志,有些经验是花钱也买不到的。

一、前言

前面的几个章节介绍了很多理论基础,如:什么是WCF、WCF中的A、B、C。WCF的传输模式。本文从零开始和大家一起写一个小的WCF应用程序Demo。

大多框架的学习都是从增、删、改、查开始来学习的,我们学习WCF也是一样的。从简单来看(不包括安全、优化等相关问题),WCF的增删改查和WebForm相差无几。WCF只是把具体“实现”写在“Service端”,而“调用”放在了“Client端”。觉得有帮助别忘了点个赞哈,谢谢哦~

二、Demo说明

1)Demo的 “Service端”以本机IIS为宿主,“Client端”以WebForm项目为例。

2)Demo的“Service端”提取数据采用初学者比较容易接受的分层结构进行搭建,分别分为服务层、实体层、数据层。

引用关系如下图所示:无废话WCF入门教程六[一个简单的Demo]

3)Demo以数据库为SqlServer,表User为例(sql语句在下载的压缩包中Init.sql),表结构如下所示:

字段名

列名

数据类型

约束

生成方式

用户编号

UserID

int

主键,必须输入

自动增+1

姓名

Name

varchar(200)

非必须输入

人工输入

密码

Password

varchar(200)

非必须输入

人工输入

描述

Discribe

varchar(800)

非必须输入

人工输入

提交时间

SubmitTime

datetime

非必须输入

人工输入

三、创建Service端宿主

1)创建WCF应用程序命名为:WCF.Demo.Service,如下图:

无废话WCF入门教程六[一个简单的Demo]

2)删除默认文件IService.cs与Service.svc。并分别创建增、删、改、查”Add.svc”、“Save.svc”、“Remove.svc”、“Get.svc,Search.svc”,分别对应4个功能的服务应用程序WCF服务应用程序,并创建数据操作层和数据实体层,如下图:

无废话WCF入门教程六[一个简单的Demo]

3)增加实体层和数据操作层代码,如下所示:

     //用户实体
[DataContract]
public class User
{
[DataMember]
public int UserID { get; set; }
[DataMember]
public string UserName { get; set; }
[DataMember]
public string Password { get; set; }
[DataMember]
public string Discribe { get; set; }
[DataMember]
public DateTime SubmitTime { get; set; }
}
//数据操作,调用SqlHeler
public class User
{
private static readonly string connectionString = "server=.;database=wcfDemo;uid=sa;pwd=123456;"; //添加
public static bool Add(Model.User user)
{
string sql = string.Format("INSERT INTO [dbo].[User]([UserName],[Password],[Discribe],[SubmitTime]) VALUES('{0}','{1}','{2}','{3}')", user.UserName, user.Password, user.Discribe, user.SubmitTime);
int result = SqlHelper.ExecuteNonQuery(connectionString, CommandType.Text, sql);
if (result > )
return true;
else
return false;
} //修改
public static bool Save(Model.User user)
{
string sql = string.Format("UPDATE [dbo].[User] SET [UserName] = '{0}',[Discribe] = '{2}',[SubmitTime] = '{3}' WHERE UserID = {4}", user.UserName, user.Password, user.Discribe, user.SubmitTime, user.UserID);
int result = SqlHelper.ExecuteNonQuery(connectionString, CommandType.Text, sql);
if (result > )
return true;
else
return false;
} //删除
public static bool Remove(int UserID)
{
string sql = string.Format("DELETE FROM [dbo].[User] WHERE UserID = {0}", UserID);
int result = SqlHelper.ExecuteNonQuery(connectionString, CommandType.Text, sql);
if (result > )
return true;
else
return false;
} //获取用户
public static Model.User Get(int UserID)
{
Model.User user = new Model.User();
string sql = string.Format("SELECT * FROM [dbo].[User] WHERE UserID = {0}", UserID);
DataSet ds = SqlHelper.ExecuteDataset(connectionString, CommandType.Text, sql);
if (ds != null && ds.Tables.Count > )
{
foreach (DataRow dr in ds.Tables[].Rows)
{
user.UserID = Convert.ToInt32(dr["UserID"]);
user.UserName = dr["UserName"].ToString();
user.Password = dr["Password"].ToString();
user.Discribe = dr["Discribe"].ToString();
user.SubmitTime = Convert.ToDateTime(dr["SubmitTime"]);
}
}
return user;
} //获取用户列表
public static List<Model.User> GetUsers()
{
List<Model.User> Users = new List<Model.User>();
string sql = string.Format("SELECT * FROM [dbo].[User]");
DataSet ds = SqlHelper.ExecuteDataset(connectionString, CommandType.Text, sql);
if (ds != null && ds.Tables.Count > )
{
foreach (DataTable dt in ds.Tables)
{
foreach (DataRow dr in dt.Rows)
{
Model.User user = new Model.User();
user.UserID = Convert.ToInt32(dr["UserID"]);
user.UserName = dr["UserName"].ToString();
user.Password = dr["Password"].ToString();
user.Discribe = dr["Discribe"].ToString();
user.SubmitTime = Convert.ToDateTime(dr["SubmitTime"]);
Users.Add(user);
}
}
}
return Users;
}
}

4)修改Add接口的代码和实现,如下所示:

     [ServiceContract]
public interface IAdd
{
[OperationContract]
bool DoWork(Model.User user);
} public class Add : IAdd
{
public bool DoWork(Model.User user)
{
return DAL.User.Add(user);
}
}

5)修改Save接口的代码和实现,如下所示:

     [ServiceContract]
public interface ISave
{
[OperationContract]
bool DoWork(Model.User user);
} public class Save : ISave
{
public bool DoWork(Model.User user)
{
return DAL.User.Save(user);
}
}

6)修改Remove接口的代码和实现,如下所示:

     [ServiceContract]
public interface IRemove
{
[OperationContract]
bool DoWork(int UserID);
}
public class Remove : IRemove
{
public bool DoWork(int UserID)
{
return DAL.User.Remove(UserID);
}
}

7)修改Search接口的代码和实现,如下所示:

     [ServiceContract]
public interface ISearch
{
[OperationContract]
List<Model.User> DoWork();
} public class Search : ISearch
{
List<Model.User> ISearch.DoWork()
{
return DAL.User.GetUsers();
}
}

8)修改Get接口的代码和实现,如下所示:

     [ServiceContract]
public interface IGet
{
[OperationContract]
Model.User DoWork(int UserID);
} public class Get : IGet
{
public Model.User DoWork(int UserID)
{
return DAL.User.Get(UserID);
}
}

四、部署服务端程序

1)将程序发布,并部署到IIS上,设置端口:8080,如下图所示:

无废话WCF入门教程六[一个简单的Demo]2)以Add.svc服务应用程序为目标,测试部署是否成功,成功后如下图所示:

无废话WCF入门教程六[一个简单的Demo]

五、创建Client端Web应用程序

新建WebForm项目WCF.Demo.Client,并创建增删改查文件,Add.aspx,Save.aspx,SearchAndRemove.aspx。如下图所示:

无废话WCF入门教程六[一个简单的Demo]

六、使用SvcUtil.exe生成客户端代码和配置

SvcUtil.exe是一个VS命令行工具,该工具位于:C:\Program Files\Microsoft  SDKs\Windows\v7.0A\bin 或 C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\bin\一般情况下我们将SvcUtil.exe添加到VS开发工具中方便以后的运用(也可直接使用该命令行工具)。

1)在VS中的 Tools菜单---选择External Tools,打开管理窗口如下图所示:

无废话WCF入门教程六[一个简单的Demo]

在Title中输入SvcUtil,Command中选择SvcUtil.exe全路径,Initial  directory栏选择生成的客户端代码和配置文件所放的目录(此处为解决方案所在目录),选上Prompt for arguments,不选上Close on  exit。点击OK.

2)添加完成后,在VS的工具下会出现这个菜单。如下图所示:

无废话WCF入门教程六[一个简单的Demo]

3)在Client端添加对服务的引用。打开SvUtil工具,在Arguments里填写服务的地址,如下图:

无废话WCF入门教程六[一个简单的Demo]

点击OK后出现下图,说明代码类和配置文件生成成功(在解决方案目标下),如下图所示:

无废话WCF入门教程六[一个简单的Demo]

此时代理类和配置文件被下载到解决方案的物理目录中,如下图所示:无废话WCF入门教程六[一个简单的Demo]

七、在Client端使用代理类与配置

将代理类从服务端的物理目录拷贝出来,放到Client端,并适当的修改代码,加入自己需要的名称空间,如下图所示:

无废话WCF入门教程六[一个简单的Demo]

使用代码如下所示:

     //增加
public partial class Add : System.Web.UI.Page
{
Service.AddClient addClient = new Service.AddClient();
protected void Page_Load(object sender, EventArgs e)
{ } //提交
protected void btnSubmit_Click(object sender, EventArgs e)
{
Model.User user = new Model.User();
user.UserName = this.txtUserName.Text;
user.Password = this.txtPassword.Text;
user.Discribe = this.txtDiscribe.Text;
user.SubmitTime = System.DateTime.Now;
addClient.DoWork(user);
Response.Write("添加成功!");
}
}
//修改
public partial class Save : System.Web.UI.Page
{
Service.SaveClient saveClient = new Service.SaveClient();
Service.GetClient getClient = new Service.GetClient();
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack && !string.IsNullOrEmpty(Request.QueryString["UserID"]))
{
GetUser();
}
} protected void GetUser()
{
int UserID = Convert.ToInt32(Request.QueryString["UserID"]);
Model.User user = getClient.DoWork(UserID);
this.txtUserName.Text = user.UserName;
this.txtDiscribe.Text = user.Discribe;
} //提交
protected void btnSubmit_Click(object sender, EventArgs e)
{
int UserID = Convert.ToInt32(Request.QueryString["UserID"]);
Model.User user = getClient.DoWork(UserID);
user.UserName = this.txtUserName.Text;
user.Discribe = this.txtDiscribe.Text;
saveClient.DoWork(user);
Response.Write("修改成功!");
}
}
//列表及删除
public partial class SearchAndRemove : System.Web.UI.Page
{
Service.SearchClient searchClient = new Service.SearchClient();
Service.RemoveClient removeClient = new Service.RemoveClient();
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
GetUsers();
}
} protected void GetUsers()
{
this.repUsers.DataSource = searchClient.DoWork();
this.repUsers.DataBind();
} protected void lbtnRemoveCommand(object sender, CommandEventArgs e)
{
int UserID = Convert.ToInt32(e.CommandName);
removeClient.DoWork(UserID);
Response.Write("删除成功~");
GetUsers();
}
}

将生成的配置文件中的 <system.serviceModel>复制到Client的Web.config中,代码如下:

   <system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IAdd" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="" maxBufferPoolSize="" maxReceivedMessageSize=""
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="" maxStringContentLength="" maxArrayLength=""
maxBytesPerRead="" maxNameTableCharCount="" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
<binding name="BasicHttpBinding_IRemove" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="" maxBufferPoolSize="" maxReceivedMessageSize=""
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="" maxStringContentLength="" maxArrayLength=""
maxBytesPerRead="" maxNameTableCharCount="" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
<binding name="BasicHttpBinding_ISearch" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="" maxBufferPoolSize="" maxReceivedMessageSize=""
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="" maxStringContentLength="" maxArrayLength=""
maxBytesPerRead="" maxNameTableCharCount="" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
<binding name="BasicHttpBinding_ISave" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="" maxBufferPoolSize="" maxReceivedMessageSize=""
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="" maxStringContentLength="" maxArrayLength=""
maxBytesPerRead="" maxNameTableCharCount="" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
<binding name="BasicHttpBinding_IGet" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="" maxBufferPoolSize="" maxReceivedMessageSize=""
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="" maxStringContentLength="" maxArrayLength=""
maxBytesPerRead="" maxNameTableCharCount="" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:8080/Add.svc" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_IAdd" contract="IAdd"
name="BasicHttpBinding_IAdd" />
<endpoint address="http://localhost:8080/Remove.svc" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_IRemove" contract="IRemove"
name="BasicHttpBinding_IRemove" />
<endpoint address="http://localhost:8080/Search.svc" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_ISearch" contract="ISearch"
name="BasicHttpBinding_ISearch" />
<endpoint address="http://localhost:8080/Save.svc" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_ISave" contract="ISave"
name="BasicHttpBinding_ISave" />
<endpoint address="http://localhost:8080/Get.svc" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_IGet" contract="IGet"
name="BasicHttpBinding_IGet" />
</client>
</system.serviceModel>

-------------------------最终效果-----------------------

添加:

无废话WCF入门教程六[一个简单的Demo]

修改:无废话WCF入门教程六[一个简单的Demo]

列表及删除:

无废话WCF入门教程六[一个简单的Demo]

八、源码下载

点我下载本文章Demo

九、wcf入门教程目录

无废话WCF入门教程一[什么是WCF]

无废话WCF入门教程二[WCF应用的通信过程]

无废话WCF入门教程三[WCF的宿主]

无废话WCF入门教程四[WCF的配置文件]

无废话WCF入门教程五[WCF的通信模式]

版权:http://www.cnblogs.com/iamlilinfeng

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