前言

传统的Asmx服务,由于遵循SOAP协议,所以返回内容以xml方式组织。并且客户端需要添加服务端引用才能使用(虽然看到网络上已经提供了这方面的Dynamic Proxy,但是没有这种方式简便),所以给开发和部署带来了不小的麻烦。并且当服务过多的时候,生成的引用文件会很大,之前项目的一个引用文件光引用代码都有5000多行,全部在一个类中。确实不方便维护。

基于以上几点,就特别研究了一下基于Restful的服务开发,当时手头有两种框架,一个是WCF Restful Service,另一个是Asp.net Web API。由于对WCF比较熟悉一些,所以就选择了前者。

Restful Service及其相关

说到Restful Service,不得不提到其中的Rest这个关键字。它是用于创建分布式超文本媒体的一种架构方式,我们可以通过标准的HTTP(GET,POST,PUT,DELETE)操作来构建基于面向资源的软件架构方式(Resource-Oriented Architecture (ROA))。它是独立于任何技术或者平台的,所以人们经常将符合这种操作规范的服务称为“RESTful services”。因为WCF能够构建符合这种规范的服务,所以我们经常称之为 WCF Restful Services。

由于传统的WCF Service可以使用tcp,net.msmq,http等协议进行数据交换,并且采用了RPC(Remote Procedure Call)的工作方式,客户端需要添加对服务端的引用才能完成。但是WCF Restful Service完全使用Http协议来进行,并且无需添加客户端引用,所以方便很多。

服务端开发一瞥

下面以图书馆的例子来做具体的说明。

打开VS2010,新建一个WCF REST Service Application项目,然后在项目中,添加一个BookService.cs用于处理逻辑操作,再添加一个BookEntity.cs用于提供实体类。

打开Global.asax,可以看到如下代码:



1:   void Application_Start(object sender, EventArgs e)
2:   {
3:      RegisterRoutes();
4:   }
5:
6:   private void RegisterRoutes()
7:   {
8:      RouteTable.Routes.Add(new ServiceRoute("BookService", new WebServiceHostFactory(), typeof(BookService)));
9:   }


 

其中RegisterRoutes是设定服务启动的入口点的。

然后是BookEntity实体类的组织方式:



1:   public class BookEntity
2:   {
3:          public int BookID { get; set; }
4:
5:          public string BookName { get; set; }
6:
7:          public decimal BookPrice { get; set; }
8:
9:          public string BookPublish { get; set; }
10:   }


这里我就不用多说了,实体类包含图书序号,图书名称,图书价格,出版单位四个属性。

然后就是我们的核心内容:



1:      [ServiceContract]
2:      [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
3:      [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
4:      public class BookService
5:      {
6:          public BookService()
7:          {
8:              bookList = new List<BookEntity>();
9:              BookEntity book = new BookEntity();
10:              book.BookID = 1;
11:              book.BookName = "大话设计模式";
12:              book.BookPrice = (decimal)45.2;
13:              book.BookPublish = "中国邮电出版社";
14:              bookList.Add(book);
15:
16:              BookEntity book1 = new BookEntity();
17:              book1.BookID = 2;
18:              book1.BookName = "测试用例";
19:              book1.BookPrice = (decimal)21.0;
20:              book1.BookPublish = "清华大学出版社";
21:              bookList.Add(book1);
22:
23:              BookEntity book2 = new BookEntity();
24:              book2.BookID = 3;
25:              book2.BookName = "Rework";
26:              book2.BookPrice = (decimal)15.4;
27:              book2.BookPublish = "Wrox pulishment";
28:              bookList.Add(book2);
29:          }
30:
31:          private static List<BookEntity> bookList;
32:
33:          [WebInvoke(Method = "GET"
34:              , ResponseFormat = WebMessageFormat.Json
35:              , BodyStyle = WebMessageBodyStyle.Bare   //不需要任何修饰,否则生成的json无法解析
36:              , UriTemplate = "/?bookID={bookID}")]  //只接收string类型,如果是其他类型,需要按照 /?para={parameter}的方式来组织。
37:          public BookEntity Get(int bookID)
38:          {
39:              return bookList.Where(p => p.BookID == bookID).FirstOrDefault();
40:          }
41:
42:          [WebInvoke(Method = "GET"
43:              , ResponseFormat = WebMessageFormat.Json
44:              , BodyStyle = WebMessageBodyStyle.Bare
45:              , UriTemplate = "/")]
46:          public List<BookEntity> GetALL()
47:          {
48:              return bookList;
49:          }
50:
51:            [WebInvoke(Method = "POST"
52:              , ResponseFormat = WebMessageFormat.Json
53:              , BodyStyle = WebMessageBodyStyle.Bare
54:              , UriTemplate = "/")]
55:          public bool Update(BookEntity book)
56:          {
57:              BookEntity query = (from p in bookList where p.BookID == book.BookID select p).FirstOrDefault();
58:              bookList.Remove(query);
59:              bookList.Add(book);
60:              return true;
61:            }
62:
63:           [WebInvoke(Method = "PUT"
64:              , ResponseFormat = WebMessageFormat.Json
65:              , BodyStyle = WebMessageBodyStyle.Bare
66:              , UriTemplate = "/")]
67:          public bool Add(BookEntity book)
68:          {
69:              bookList.Add(book);
70:              return true;
71:          }
72:
73:          [WebInvoke(Method = "DELETE"
74:              , ResponseFormat = WebMessageFormat.Json
75:              , BodyStyle = WebMessageBodyStyle.Bare
76:              , UriTemplate = "/")]
77:          public bool Delete(BookEntity book)
78:          {
79:              BookEntity bookCurrent = (from p in bookList where p.BookID == book.BookID select p).FirstOrDefault();
80:              return bookList.Remove(bookCurrent);
81:          }
82:      }


其中,Method 方法主要是表明可以接受客户端的请求类型,这里有四种:GET,POST,PUT,DELETE,其中GET为请求数据,POST为更新数据,PUT为新增数据,DELETE代表着删除数据。

然后ResponseFormat 则代表着返回的数据组织,如果是Json则表明客户端会接收到Json数据,如果是XML则表明客户端会接收到XML组织的数据。BodyStyle 代表返回数据的包装对象,如果是Bare则表明数据无任何包装,原生数据返回;如果是Wrapped则表明数据会在最外层包装一个当前函数名称加上Result的套。比如对于Delete对象,则会返回 DeleteResult:{******},会造成DataContractJsonSerializer无法进行反序列化。

UriTemplate 主要用于指定操作的URI路径,只要用户输入了合法路径并采用了正确的请求方式,就会触发该函数。

最后说到的就是URI后面跟的参数的问题,由于函数只能接受string类型的,所以如果传入参数是string类型,则可以使用UriTemplate = "{bookID}"的路径,反之,则需要加上/?param1={paramname}的方式,比如我代码中使用的是:UriTemplate = "/?bookID={bookID}"。

当一切都弄好以后,让我们运行一下,访问如下路径,就可以得到结果:

http://localhost:45345/BookService/

得到的结果如下:



[{"BookID":1,"BookName":"大话设计模式","BookPrice":45.2,"BookPublish":"中国邮电出版社"},{"BookID":2,"BookName":"测试用例","BookPrice":21,"BookPublish":"清华大学出版社"},{"BookID":3,"BookName":"Rework","BookPrice":15.4,"BookPublish":"Wrox pulishment"}]


 如果访问http://localhost:45345/BookService/?bookID=1,则会得到如下的结果:



{"BookID":1,"BookName":"大话设计模式","BookPrice":45.2,"BookPublish":"中国邮电出版社"}


客户端开发一瞥

初步测试成功后,让我们来进行一下全面的测试。

首先,在项目中,我们新建一个Asp.net WebForm Application,用于做测试工作。

然后,在Default.aspx.cs中,针对GET操作,我们添加如下代码:



1:   private void GetBookByID(string id)
2:          {
3:              WebClient proxy = new WebClient();
4:              string serviceURL = string.Empty;
5:              DataContractJsonSerializer obj ;
6:              if (string.IsNullOrEmpty(id))
7:              {
8:                  serviceURL = string.Format("http://localhost:45345/BookService/");
9:                  obj = new DataContractJsonSerializer(typeof(List<BookEntity>));
10:              }
11:              else
12:              {
13:                  serviceURL = string.Format("http://localhost:45345/BookService/?bookID=" + id);
14:                  obj = new DataContractJsonSerializer(typeof(BookEntity));
15:              }
16:              byte[] data = proxy.DownloadData(serviceURL);
17:              Stream stream = new MemoryStream(data);
18:              var result = obj.ReadObject(stream);
19:              List<BookEntity> list=new List<BookEntity>();
20:              if (result is BookEntity)
21:                  list.Add(result as BookEntity);
22:              else if (result is List<BookEntity>)
23:                  list = result as List<BookEntity>;
24:              GridView1.DataSource = list;
25:              GridView1.DataBind();
26:          }


在以上代码中,DataContractJsonSerializer 是WCF提供的一个序列化类,用于将对象序列化或者反序列化。

写好之后,我们点击界面按钮,出现了以下的结果:

[转]构建基于WCF Restful Service的服务_数据​​[转]构建基于WCF Restful Service的服务_sed_02

针对PUT操作,也就是添加操作,我们添加如下代码:



1:  BookEntity bookEntity = new BookEntity();
2:              bookEntity.BookID = Int32.Parse(txtBookID.Text);
3:              bookEntity.BookName = txtBookName.Text;
4:              bookEntity.BookPrice = decimal.Parse(txtBookPrice.Text);
5:              bookEntity.BookPublish = txtBookPublish.Text;
6:
7:              DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(BookEntity));
8:              MemoryStream ms = new MemoryStream();
9:              obj.WriteObject(ms, bookEntity);
10:              byte[] byteSend = ms.ToArray();
11:              ms.Close();
12:
13:              string serviceURL = string.Format("http://localhost:45345/BookService");
14:
15:              WebClient test = new WebClient();
16:              test.Headers.Add("Content-Type", "application/json");
17:              test.Headers.Add("ContentLength", byteSend.Length.ToString());
18:
19:
20:              byte[] responseData = test.UploadData(serviceURL, "PUT", byteSend);
21:
22:              string result = Encoding.GetEncoding("UTF-8").GetString(responseData);
23:              lblLog.Text = result;


在做这步的时候,需要注意,test.Headers.Add("Content-Type", "application/json") 和test.Headers.Add("ContentLength", byteSend.Length.ToString())需要添加,否则会造成Http 400 返回的错误。并且,向服务端传递实体的时候,可以通过使用UploadData的方式来进行,如果数据量过大,可以考虑使用异步方式传送。

接下来的POST和DELETE方法和上面类似,我都贴一下:

POST方法:



1:   BookEntity bookEntity = new BookEntity();
2:              bookEntity.BookID = Int32.Parse(txtBookID.Text);
3:              bookEntity.BookName = txtBookName.Text;
4:              bookEntity.BookPrice = decimal.Parse(txtBookPrice.Text);
5:              bookEntity.BookPublish = txtBookPublish.Text;
6:
7:              DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(BookEntity));
8:              MemoryStream ms = new MemoryStream();
9:              obj.WriteObject(ms, bookEntity);
10:              byte[] byteSend = ms.ToArray();
11:              ms.Close();
12:
13:              string serviceURL = string.Format("http://localhost:45345/BookService");
14:
15:              WebClient test = new WebClient();
16:              test.Headers.Add("Content-Type", "application/json");
17:              test.Headers.Add("ContentLength", byteSend.Length.ToString());
18:
19:              byte[] responseData = test.UploadData(serviceURL, "POST", byteSend);
20:
21:              string result = Encoding.GetEncoding("UTF-8").GetString(responseData);
22:              lblLog.Text = result;


DELETE方法:



1:   BookEntity bookEntity = new BookEntity();
2:              bookEntity.BookID = Int32.Parse(txtBookID.Text);
3:
4:              DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(BookEntity));
5:              MemoryStream ms = new MemoryStream();
6:              obj.WriteObject(ms, bookEntity);
7:              byte[] byteSend = ms.ToArray();
8:              ms.Close();
9:
10:              string serviceURL = string.Format("http://localhost:45345/BookService");
11:
12:              WebClient test = new WebClient();
13:              test.Headers.Add("Content-Type", "application/json");
14:              test.Headers.Add("ContentLength", byteSend.Length.ToString());
15:
16:
17:              byte[] responseData = test.UploadData(serviceURL, "DELETE", byteSend);
18:
19:              string result = Encoding.GetEncoding("UTF-8").GetString(responseData);
20:              lblLog.Text = result;


最后得到的效果图如下:

[转]构建基于WCF Restful Service的服务_客户端_03

(新增记录)

[转]构建基于WCF Restful Service的服务_json_04

(更新记录)

[转]构建基于WCF Restful Service的服务_服务端_05

(删除记录)

 成文仓促,难免有误,还请指出,在此谢过。


前言

传统的Asmx服务,由于遵循SOAP协议,所以返回内容以xml方式组织。并且客户端需要添加服务端引用才能使用(虽然看到网络上已经提供了这方面的Dynamic Proxy,但是没有这种方式简便),所以给开发和部署带来了不小的麻烦。并且当服务过多的时候,生成的引用文件会很大,之前项目的一个引用文件光引用代码都有5000多行,全部在一个类中。确实不方便维护。

基于以上几点,就特别研究了一下基于Restful的服务开发,当时手头有两种框架,一个是WCF Restful Service,另一个是Asp.net Web API。由于对WCF比较熟悉一些,所以就选择了前者。

Restful Service及其相关

说到Restful Service,不得不提到其中的Rest这个关键字。它是用于创建分布式超文本媒体的一种架构方式,我们可以通过标准的HTTP(GET,POST,PUT,DELETE)操作来构建基于面向资源的软件架构方式(Resource-Oriented Architecture (ROA))。它是独立于任何技术或者平台的,所以人们经常将符合这种操作规范的服务称为“RESTful services”。因为WCF能够构建符合这种规范的服务,所以我们经常称之为 WCF Restful Services。

由于传统的WCF Service可以使用tcp,net.msmq,http等协议进行数据交换,并且采用了RPC(Remote Procedure Call)的工作方式,客户端需要添加对服务端的引用才能完成。但是WCF Restful Service完全使用Http协议来进行,并且无需添加客户端引用,所以方便很多。

服务端开发一瞥

下面以图书馆的例子来做具体的说明。

打开VS2010,新建一个WCF REST Service Application项目,然后在项目中,添加一个BookService.cs用于处理逻辑操作,再添加一个BookEntity.cs用于提供实体类。

打开Global.asax,可以看到如下代码:



1:   void Application_Start(object sender, EventArgs e)
2:   {
3:      RegisterRoutes();
4:   }
5:
6:   private void RegisterRoutes()
7:   {
8:      RouteTable.Routes.Add(new ServiceRoute("BookService", new WebServiceHostFactory(), typeof(BookService)));
9:   }


 

其中RegisterRoutes是设定服务启动的入口点的。

然后是BookEntity实体类的组织方式:



1:   public class BookEntity
2:   {
3:          public int BookID { get; set; }
4:
5:          public string BookName { get; set; }
6:
7:          public decimal BookPrice { get; set; }
8:
9:          public string BookPublish { get; set; }
10:   }


这里我就不用多说了,实体类包含图书序号,图书名称,图书价格,出版单位四个属性。

然后就是我们的核心内容:



1:      [ServiceContract]
2:      [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
3:      [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
4:      public class BookService
5:      {
6:          public BookService()
7:          {
8:              bookList = new List<BookEntity>();
9:              BookEntity book = new BookEntity();
10:              book.BookID = 1;
11:              book.BookName = "大话设计模式";
12:              book.BookPrice = (decimal)45.2;
13:              book.BookPublish = "中国邮电出版社";
14:              bookList.Add(book);
15:
16:              BookEntity book1 = new BookEntity();
17:              book1.BookID = 2;
18:              book1.BookName = "测试用例";
19:              book1.BookPrice = (decimal)21.0;
20:              book1.BookPublish = "清华大学出版社";
21:              bookList.Add(book1);
22:
23:              BookEntity book2 = new BookEntity();
24:              book2.BookID = 3;
25:              book2.BookName = "Rework";
26:              book2.BookPrice = (decimal)15.4;
27:              book2.BookPublish = "Wrox pulishment";
28:              bookList.Add(book2);
29:          }
30:
31:          private static List<BookEntity> bookList;
32:
33:          [WebInvoke(Method = "GET"
34:              , ResponseFormat = WebMessageFormat.Json
35:              , BodyStyle = WebMessageBodyStyle.Bare   //不需要任何修饰,否则生成的json无法解析
36:              , UriTemplate = "/?bookID={bookID}")]  //只接收string类型,如果是其他类型,需要按照 /?para={parameter}的方式来组织。
37:          public BookEntity Get(int bookID)
38:          {
39:              return bookList.Where(p => p.BookID == bookID).FirstOrDefault();
40:          }
41:
42:          [WebInvoke(Method = "GET"
43:              , ResponseFormat = WebMessageFormat.Json
44:              , BodyStyle = WebMessageBodyStyle.Bare
45:              , UriTemplate = "/")]
46:          public List<BookEntity> GetALL()
47:          {
48:              return bookList;
49:          }
50:
51:            [WebInvoke(Method = "POST"
52:              , ResponseFormat = WebMessageFormat.Json
53:              , BodyStyle = WebMessageBodyStyle.Bare
54:              , UriTemplate = "/")]
55:          public bool Update(BookEntity book)
56:          {
57:              BookEntity query = (from p in bookList where p.BookID == book.BookID select p).FirstOrDefault();
58:              bookList.Remove(query);
59:              bookList.Add(book);
60:              return true;
61:            }
62:
63:           [WebInvoke(Method = "PUT"
64:              , ResponseFormat = WebMessageFormat.Json
65:              , BodyStyle = WebMessageBodyStyle.Bare
66:              , UriTemplate = "/")]
67:          public bool Add(BookEntity book)
68:          {
69:              bookList.Add(book);
70:              return true;
71:          }
72:
73:          [WebInvoke(Method = "DELETE"
74:              , ResponseFormat = WebMessageFormat.Json
75:              , BodyStyle = WebMessageBodyStyle.Bare
76:              , UriTemplate = "/")]
77:          public bool Delete(BookEntity book)
78:          {
79:              BookEntity bookCurrent = (from p in bookList where p.BookID == book.BookID select p).FirstOrDefault();
80:              return bookList.Remove(bookCurrent);
81:          }
82:      }


其中,Method 方法主要是表明可以接受客户端的请求类型,这里有四种:GET,POST,PUT,DELETE,其中GET为请求数据,POST为更新数据,PUT为新增数据,DELETE代表着删除数据。

然后ResponseFormat 则代表着返回的数据组织,如果是Json则表明客户端会接收到Json数据,如果是XML则表明客户端会接收到XML组织的数据。BodyStyle 代表返回数据的包装对象,如果是Bare则表明数据无任何包装,原生数据返回;如果是Wrapped则表明数据会在最外层包装一个当前函数名称加上Result的套。比如对于Delete对象,则会返回 DeleteResult:{******},会造成DataContractJsonSerializer无法进行反序列化。

UriTemplate 主要用于指定操作的URI路径,只要用户输入了合法路径并采用了正确的请求方式,就会触发该函数。

最后说到的就是URI后面跟的参数的问题,由于函数只能接受string类型的,所以如果传入参数是string类型,则可以使用UriTemplate = "{bookID}"的路径,反之,则需要加上/?param1={paramname}的方式,比如我代码中使用的是:UriTemplate = "/?bookID={bookID}"。

当一切都弄好以后,让我们运行一下,访问如下路径,就可以得到结果:

http://localhost:45345/BookService/

得到的结果如下:



[{"BookID":1,"BookName":"大话设计模式","BookPrice":45.2,"BookPublish":"中国邮电出版社"},{"BookID":2,"BookName":"测试用例","BookPrice":21,"BookPublish":"清华大学出版社"},{"BookID":3,"BookName":"Rework","BookPrice":15.4,"BookPublish":"Wrox pulishment"}]


 如果访问http://localhost:45345/BookService/?bookID=1,则会得到如下的结果:



{"BookID":1,"BookName":"大话设计模式","BookPrice":45.2,"BookPublish":"中国邮电出版社"}


客户端开发一瞥

初步测试成功后,让我们来进行一下全面的测试。

首先,在项目中,我们新建一个Asp.net WebForm Application,用于做测试工作。

然后,在Default.aspx.cs中,针对GET操作,我们添加如下代码:



1:   private void GetBookByID(string id)
2:          {
3:              WebClient proxy = new WebClient();
4:              string serviceURL = string.Empty;
5:              DataContractJsonSerializer obj ;
6:              if (string.IsNullOrEmpty(id))
7:              {
8:                  serviceURL = string.Format("http://localhost:45345/BookService/");
9:                  obj = new DataContractJsonSerializer(typeof(List<BookEntity>));
10:              }
11:              else
12:              {
13:                  serviceURL = string.Format("http://localhost:45345/BookService/?bookID=" + id);
14:                  obj = new DataContractJsonSerializer(typeof(BookEntity));
15:              }
16:              byte[] data = proxy.DownloadData(serviceURL);
17:              Stream stream = new MemoryStream(data);
18:              var result = obj.ReadObject(stream);
19:              List<BookEntity> list=new List<BookEntity>();
20:              if (result is BookEntity)
21:                  list.Add(result as BookEntity);
22:              else if (result is List<BookEntity>)
23:                  list = result as List<BookEntity>;
24:              GridView1.DataSource = list;
25:              GridView1.DataBind();
26:          }


在以上代码中,DataContractJsonSerializer 是WCF提供的一个序列化类,用于将对象序列化或者反序列化。

写好之后,我们点击界面按钮,出现了以下的结果:

[转]构建基于WCF Restful Service的服务_数据​​[转]构建基于WCF Restful Service的服务_sed_02

针对PUT操作,也就是添加操作,我们添加如下代码:



1:  BookEntity bookEntity = new BookEntity();
2:              bookEntity.BookID = Int32.Parse(txtBookID.Text);
3:              bookEntity.BookName = txtBookName.Text;
4:              bookEntity.BookPrice = decimal.Parse(txtBookPrice.Text);
5:              bookEntity.BookPublish = txtBookPublish.Text;
6:
7:              DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(BookEntity));
8:              MemoryStream ms = new MemoryStream();
9:              obj.WriteObject(ms, bookEntity);
10:              byte[] byteSend = ms.ToArray();
11:              ms.Close();
12:
13:              string serviceURL = string.Format("http://localhost:45345/BookService");
14:
15:              WebClient test = new WebClient();
16:              test.Headers.Add("Content-Type", "application/json");
17:              test.Headers.Add("ContentLength", byteSend.Length.ToString());
18:
19:
20:              byte[] responseData = test.UploadData(serviceURL, "PUT", byteSend);
21:
22:              string result = Encoding.GetEncoding("UTF-8").GetString(responseData);
23:              lblLog.Text = result;


在做这步的时候,需要注意,test.Headers.Add("Content-Type", "application/json") 和test.Headers.Add("ContentLength", byteSend.Length.ToString())需要添加,否则会造成Http 400 返回的错误。并且,向服务端传递实体的时候,可以通过使用UploadData的方式来进行,如果数据量过大,可以考虑使用异步方式传送。

接下来的POST和DELETE方法和上面类似,我都贴一下:

POST方法:



1:   BookEntity bookEntity = new BookEntity();
2:              bookEntity.BookID = Int32.Parse(txtBookID.Text);
3:              bookEntity.BookName = txtBookName.Text;
4:              bookEntity.BookPrice = decimal.Parse(txtBookPrice.Text);
5:              bookEntity.BookPublish = txtBookPublish.Text;
6:
7:              DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(BookEntity));
8:              MemoryStream ms = new MemoryStream();
9:              obj.WriteObject(ms, bookEntity);
10:              byte[] byteSend = ms.ToArray();
11:              ms.Close();
12:
13:              string serviceURL = string.Format("http://localhost:45345/BookService");
14:
15:              WebClient test = new WebClient();
16:              test.Headers.Add("Content-Type", "application/json");
17:              test.Headers.Add("ContentLength", byteSend.Length.ToString());
18:
19:              byte[] responseData = test.UploadData(serviceURL, "POST", byteSend);
20:
21:              string result = Encoding.GetEncoding("UTF-8").GetString(responseData);
22:              lblLog.Text = result;


DELETE方法:



1:   BookEntity bookEntity = new BookEntity();
2:              bookEntity.BookID = Int32.Parse(txtBookID.Text);
3:
4:              DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(BookEntity));
5:              MemoryStream ms = new MemoryStream();
6:              obj.WriteObject(ms, bookEntity);
7:              byte[] byteSend = ms.ToArray();
8:              ms.Close();
9:
10:              string serviceURL = string.Format("http://localhost:45345/BookService");
11:
12:              WebClient test = new WebClient();
13:              test.Headers.Add("Content-Type", "application/json");
14:              test.Headers.Add("ContentLength", byteSend.Length.ToString());
15:
16:
17:              byte[] responseData = test.UploadData(serviceURL, "DELETE", byteSend);
18:
19:              string result = Encoding.GetEncoding("UTF-8").GetString(responseData);
20:              lblLog.Text = result;


最后得到的效果图如下:

[转]构建基于WCF Restful Service的服务_客户端_03

(新增记录)

[转]构建基于WCF Restful Service的服务_json_04

(更新记录)

[转]构建基于WCF Restful Service的服务_服务端_05

(删除记录)

 成文仓促,难免有误,还请指出,在此谢过。