C# 调用网页接口

代码部分

using Newtonsoft.Json.Linq;
using NPoco;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace TestHolidayApi
{
    class Program
    {
        static void Main(string[] args)
        {


            //string day = System.DateTime.Today.ToString("yyyyMMdd");
            DateTime dt = new DateTime();
            dt = Convert.ToDateTime("2017-01-02");

            //string str  =  GetDayState(day);
            int num = 0;

            try
            {
                while (num < 7200) { 
                    using (IDatabase db = new Database("monitor"))
                    {

                        HOLIDAY dy = new HOLIDAY();
                        dy.DAY = dt;

                        dy.STATUS = GetDayState(dt.ToString("yyyyMMdd")).ToString();
                        db.Insert<HOLIDAY>("HOLIDAY", "DAY",false, dy);
                        dt = dt.AddDays(1);



                        num++;
                    }
                }
            }
            catch (Exception ex)
            {

                throw ex;
            }
          

            //Console.WriteLine(str);

            Console.ReadKey();
       
        }


        public static string GetDayState(string day)
        {
            string serviceAddress = "http://api.goseek.cn/Tools/holiday?date="+day+"";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(serviceAddress);

            request.Method = "POST";
            request.ContentType = "application/json";
            //string strContent = @"{ ""mmmm"": ""89e"",""nnnnnn"": ""0101943"",""kkkkkkk"": ""e8sodijf9""}";
            //using (StreamWriter dataStream = new StreamWriter(request.GetRequestStream()))
            //{
            //    dataStream.Write(strContent);
            //    dataStream.Close();
            //}
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            string encoding = response.ContentEncoding;
            if (encoding == null || encoding.Length < 1)
            {
                encoding = "UTF-8"; //默认编码  
            }
            StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(encoding));
            string retString = reader.ReadToEnd();
            //解析josn
            JObject jo = JObject.Parse(retString);

            return jo["data"].ToString();
           // Response.Write(jo["message"]["mmmm"].ToString());
        }
    }
}

配置文件部分（App.config）

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="oracle.manageddataaccess.client"
      type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.122.19.1, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
    </configSections>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
    </startup>

  <connectionStrings>

    <add  name="monitor" connectionString="Data Source=localhost/ORCL; User Id=monitor_bw; Password=123;" providerName="Oracle.ManagedDataAccess.Client"/>
    
  </connectionStrings>
  
    <system.data>
        <DbProviderFactories>
            <remove invariant="Oracle.ManagedDataAccess.Client"/>
            <add name="ODP.NET, Managed Driver" invariant="Oracle.ManagedDataAccess.Client" description="Oracle Data Provider for .NET, Managed Driver"
                type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.122.19.1, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
        </DbProviderFactories>
    </system.data>
    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <publisherPolicy apply="no"/>
                <assemblyIdentity name="Oracle.ManagedDataAccess" publicKeyToken="89b483f429c47342" culture="neutral"/>
                <bindingRedirect oldVersion="4.121.0.0 - 4.65535.65535.65535" newVersion="4.122.19.1"/>
            </dependentAssembly>
        </assemblyBinding>
    </runtime>
    <oracle.manageddataaccess.client>
        <version number="*">
            <dataSources>
                <dataSource alias="SampleDataSource"
                    descriptor="(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL))) "/>
            </dataSources>
        </version>
    </oracle.manageddataaccess.client>
</configuration>