WCF实现REST风格编程

1、首先需要一个ServiceContract

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;

namespace WcfTest
{
    [ServiceContract]
    public interface IRestService
    {
        [OperationContract]
        [WebInvoke(Method = "GET", UriTemplate = "User/Get/{uid}", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
        NUser GetUser(String uid);


        [OperationContract]
        [WebInvoke(Method = "POST", UriTemplate = "/User", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
        string UpdateUser(NUser newuser);


        [OperationContract]
        [WebInvoke(Method = "PUT", UriTemplate = "/User", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
        string AddUser(NUser newuser);


        [OperationContract]
        [WebInvoke(Method = "DELETE", UriTemplate = "/User", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
        string DeleteUser(String uid);
    }

    [DataContract]
    public class NUser
    {
        string uid = "";
        string uname = "";
        string usex = "";

        [DataMember]
        public String Uid
        {
            get { return uid; }
            set { uid = value; }
        }

        [DataMember]
        public string UName
        {
            get { return uname; }
            set { uname = value; }
        }

        [DataMember]
        public string USex
        {
            get { return usex; }
            set { usex = value; }
        }
    }
}

2、然后需要实现服务

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
using System.Text;

namespace WcfTest
{
    public class RestService : IRestService
    {
        static List<NUser> users = new List<NUser>();

        static RestService()
        {
            NUser aNUser = new NUser();
            aNUser.Uid = "001";
            aNUser.UName = "张三";
            aNUser.USex = "男";
            users.Add(aNUser);
        }

        public NUser GetUser(string uid)
        {
            foreach (NUser nuser in users)
            {
                if (nuser.Uid == uid)
                {
                    return nuser;
                }
            }

            return null;
        }

        public string UpdateUser(NUser newuser)
        {
            if (newuser == null)
            {
                return "nuewuser is null";
            }

            foreach (NUser nuser in users)
            {
                if (nuser.Uid == newuser.Uid)
                {
                    nuser.UName = newuser.UName;
                    newuser.USex = nuser.USex;
                    return "User updated";
                }
            }

            return "User not found";
        }

        public string AddUser(NUser newuser)
        {
            if (newuser == null)
            {
                return "nuewuser is null";
            }

            foreach (NUser nuser in users)
            {
                if (nuser.Uid == newuser.Uid)
                {
                    nuser.UName = newuser.UName;
                    newuser.USex = nuser.USex;
                    return "User updated";
                }
            }

            users.Add(newuser);

            return "User added";
        }

        public string DeleteUser(String uid)
        {
            bool bFound = false;
            for(int i=users.Count-1;i>=0;i--)
            {
                if (users[i].Uid == uid)
                {
                    bFound = true;
                    users.RemoveAt(i);
                }
            }

            if (!bFound)
            {
                return "User Not Found";
            }
            else
            {
                return "User Deleted";
            }
        }
    }
}

3、修改服务的Markup

<%@ ServiceHost Language="C#" Debug="true" Service="WcfTest.RestService" CodeBehind="RestService.svc.cs" 
    Factory="System.ServiceModel.Activation.WebServiceHostFactory"%>

4、修改服务配置
添加serviceBehaviors、endpointBehaviors、service、endpoint

<?xml version="1.0"?>
<configuration>
  
  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  </system.web>
  
  <system.serviceModel>
    <services>
      <service behaviorConfiguration="RestSvcBehavior" name="WcfTest.RestService">
        <endpoint binding="webHttpBinding" contract="WcfTest.IRestService" address="" behaviorConfiguration="RestEPBehavior"/>
      </service>
    </services>
 
    <behaviors>
      <endpointBehaviors>
        <behavior name="RestEPBehavior">
          <webHttp />
        </behavior>
      </endpointBehaviors>
      
      <serviceBehaviors>
        <behavior name="RestSvcBehavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
        <behavior name="">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    
    <serviceHostingEnvironment aspNetCompatibilityEnabled="false" multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
    <directoryBrowse enabled="true"/>
  </system.webServer>
</configuration>

5、访问服务

http://ip:port/RestService.svc/User/Get/001