物联网通信 - RESTDemo示例程序

概述

Server开放RESTful API接口，供应用程序/移动App/嵌入式qt通过http post调用，实现获取服务端数据，更新服务器数据

详细

代码下载：http://www.demodashi.com/demo/13944.html

 

一、前言

什么是REST

REST即表述性状态传递(英文:Representational State Transfer，简称REST)，描述的是在网络中client和server的一种交互形式。

 

REST能干什么

REST可以通过一套统一的接口为 Web，iOS和Android提供服务。另外对于广大平台来说，比如Facebook platform，微博开放平台，微信公共平台等，它们不需要有显式的前端，只需要一套提供服务的接口，于是REST更是它们最好的选择。

 

二、主要思路

RestServer实现思路

1. 搭建REST WCF服务

2. 实现调用服务

RestClient实现思路

1. 使用C#编程语言访问RestServer提供的各个API接口，并得到返回值

2. 使用JAVA编程语言访问RestServer提供的各个API接口，并得到返回值

 

API接口说明：

测试接口： http://127.0.0.1:8888/JsonService/Test

参数接口： http://127.0.0.1:8888/JsonService/MultiParam

获取数据(未加密)接口： http://127.0.0.1:8888/JsonService/GetDataTable

获取数据(DES加密)接口： http://127.0.0.1:8888/JsonService/GetDataTable_DES

执行操作(未加密)接口： http://127.0.0.1:8888/JsonService/ExecuteNonQuery

执行操作(DES加密)接口： http://127.0.0.1:8888/JsonService/ExecuteNonQuery_DES

三、效果演示

服务端程序（C#）

客户端程序（c#）

客户端程序（java）

四、代码框架

 

五、程序实现

RestServer实现

1.配置文件app.config

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<?xml version="1.0"?><br data-filtered="filtered"><configuration><br data-filtered="filtered">  <system.serviceModel><br data-filtered="filtered">    <services><br data-filtered="filtered">      <service name="ResetServer.JsonService"><br data-filtered="filtered">        <endpoint address="http://127.0.0.1:8888/JsonService" binding="webHttpBinding" contract="ResetServer.IService" /><br data-filtered="filtered">      </service><br data-filtered="filtered">    </services><br data-filtered="filtered">  </system.serviceModel><br data-filtered="filtered"></configuration>

添加接口

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[ServiceContract]<br data-filtered="filtered">    public interface IService<br data-filtered="filtered">    {<br data-filtered="filtered">        // 测试接口<br data-filtered="filtered">        [OperationContract]<br data-filtered="filtered">        [WebInvoke(Method = "POST",<br data-filtered="filtered">                UriTemplate = "Test",<br data-filtered="filtered">                ResponseFormat = WebMessageFormat.Json,<br data-filtered="filtered">                BodyStyle = WebMessageBodyStyle.WrappedRequest)]<br data-filtered="filtered">        string Test();<br data-filtered="filtered"><br data-filtered="filtered">        // 多个参数接口<br data-filtered="filtered">        [OperationContract]<br data-filtered="filtered">        [WebInvoke(Method = "POST",<br data-filtered="filtered">                UriTemplate = "MultiParam",<br data-filtered="filtered">                ResponseFormat = WebMessageFormat.Json,<br data-filtered="filtered">                BodyStyle = WebMessageBodyStyle.WrappedRequest)]<br data-filtered="filtered">        string MultiParam(string strParam1, string strParam2);<br data-filtered="filtered"><br data-filtered="filtered">        // 查询Sql语句(未加密)<br data-filtered="filtered">        [OperationContract]<br data-filtered="filtered">        [WebInvoke(Method = "POST",<br data-filtered="filtered">                UriTemplate = "GetDataTable",<br data-filtered="filtered">                ResponseFormat = WebMessageFormat.Json,<br data-filtered="filtered">                BodyStyle = WebMessageBodyStyle.WrappedRequest)]<br data-filtered="filtered">        string GetDataTable(string strSql);<br data-filtered="filtered"><br data-filtered="filtered">        // 查询Sql语句(DES加密)<br data-filtered="filtered">        [OperationContract]<br data-filtered="filtered">        [WebInvoke(Method = "POST",<br data-filtered="filtered">                UriTemplate = "GetDataTable_DES",<br data-filtered="filtered">                ResponseFormat = WebMessageFormat.Json,<br data-filtered="filtered">                BodyStyle = WebMessageBodyStyle.WrappedRequest)]<br data-filtered="filtered">        string GetDataTable_DES(string strSql);<br data-filtered="filtered"><br data-filtered="filtered">        // 执行Sql语句(未加密)<br data-filtered="filtered">        [OperationContract]<br data-filtered="filtered">        [WebInvoke(Method = "POST",<br data-filtered="filtered">                UriTemplate = "ExecuteNonQuery",<br data-filtered="filtered">                ResponseFormat = WebMessageFormat.Json,<br data-filtered="filtered">                BodyStyle = WebMessageBodyStyle.WrappedRequest)]<br data-filtered="filtered">        string ExecuteNonQuery(string strSql);<br data-filtered="filtered"><br data-filtered="filtered">        // 执行Sql语句(DES加密)<br data-filtered="filtered">        [OperationContract]<br data-filtered="filtered">        [WebInvoke(Method = "POST",<br data-filtered="filtered">                UriTemplate = "ExecuteNonQuery_DES",<br data-filtered="filtered">                ResponseFormat = WebMessageFormat.Json,<br data-filtered="filtered">                BodyStyle = WebMessageBodyStyle.WrappedRequest)]<br data-filtered="filtered">        string ExecuteNonQuery_DES(string strSql);<br data-filtered="filtered">    }

实现接口

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[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]<br data-filtered="filtered">    public class JsonService : IService<br data-filtered="filtered">    {<br data-filtered="filtered">        public string Test()<br data-filtered="filtered">        {<br data-filtered="filtered">            return JsonConvert.SerializeObject(new ResponseModel((int)ResponseEnum.Success, "ok", "", new DataTable()));<br data-filtered="filtered">        }<br data-filtered="filtered"><br data-filtered="filtered">        public string MultiParam(string strParam1, string strParam2)<br data-filtered="filtered">        {<br data-filtered="filtered">            Console.WriteLine("执行函数 [MultiParam]");<br data-filtered="filtered">            return Response("strParam1=" + strParam1 + ",strParam2=" + strParam2, ResponseEnum.Success, "ok", "", new DataTable());<br data-filtered="filtered">        }<br data-filtered="filtered"><br data-filtered="filtered">        public string GetDataTable(string strSql)<br data-filtered="filtered">        {<br data-filtered="filtered">            Console.WriteLine("执行函数 [GetDataTable]");<br data-filtered="filtered">            DataTable dt = QueryDB(strSql);<br data-filtered="filtered">            return Response("strSql=" + strSql, ResponseEnum.Success, "ok", "", dt);<br data-filtered="filtered">        }<br data-filtered="filtered">    }

RestClient实现

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PostResult HttpPost(string method, string param)<br data-filtered="filtered">        {<br data-filtered="filtered">            PostResult ret = new PostResult();<br data-filtered="filtered"><br data-filtered="filtered">            try<br data-filtered="filtered">            {<br data-filtered="filtered">                // 返回结果<br data-filtered="filtered">                // {"code":0,"info":"ok","msg":"","data":null}<br data-filtered="filtered">                // {"code":0,"info":"ok","msg":"","data":[{"field1":"value10","field2":"value20"},{"field1":"value11","field2":"value21"}]}<br data-filtered="filtered">                WebClient client = new WebClient();<br data-filtered="filtered">                client.Encoding = System.Text.Encoding.UTF8;<br data-filtered="filtered">                client.Headers.Add("Content-Type", "application/json");<br data-filtered="filtered">                string jsonBack = client.UploadString(m_strUrl + method, "POST", param);<br data-filtered="filtered">                jsonBack = jsonBack.Replace(@"\", "");                          // "{\"code\":0,\"info\":\"ok\",\"msg\":\"\",\"data\":null}"<br data-filtered="filtered">                jsonBack = jsonBack.Substring(1, jsonBack.Length - 2);<br data-filtered="filtered">                JObject jsonInfo = (JObject)JsonConvert.DeserializeObject(jsonBack);<br data-filtered="filtered">                if (jsonBack.Contains("code"))<br data-filtered="filtered">                {<br data-filtered="filtered">                    if (0 == jsonInfo.Value<int>("code")) ret.IsSuccess = true;<br data-filtered="filtered">                    ret.Info = jsonInfo.Value<string>("info");<br data-filtered="filtered">                    ret.ErrMsg = jsonInfo.Value<string>("errmsg");<br data-filtered="filtered">                    JArray arrayData = jsonInfo.Value<JArray>("data");<br data-filtered="filtered">                    if (null != arrayData) ret.Data = JsonConvert.DeserializeObject<DataTable>(arrayData.ToString());<br data-filtered="filtered">                }<br data-filtered="filtered">            }<br data-filtered="filtered">            catch (Exception ex)<br data-filtered="filtered">            {<br data-filtered="filtered">                ret.ErrMsg = ex.Message;<br data-filtered="filtered">            }<br data-filtered="filtered"><br data-filtered="filtered">            return ret;<br data-filtered="filtered">        }

六、其他说明

代码发布前已测试过，有什么疑问可以留言

 

代码下载：http://www.demodashi.com/demo/13944.html

注：本文著作权归作者，由demo大师发表，拒绝转载，转载需要作者授权