基于C#的电视台节目表接口调用代码

接口地址：http://www.juhe.cn/docs/api/id/129

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;
using Xfrog.Net;
using System.Diagnostics;
using System.Web;
 
//----------------------------------
// 电视节目时间表调用示例代码 － 聚合数据
// 在线接口文档：http://www.juhe.cn/docs/129
// 代码中JsonObject类下载地址:http://download.csdn.net/download/gcm3206021155665/7458439
//----------------------------------
 
namespace ConsoleAPI
{
  class Program
  {
    static void Main(string[] args)
    {
      string appkey = "*******************"; //配置您申请的appkey
 

      //1.电视台分类
      string url1 = "http://japi.juhe.cn/tv/getCategory";
 
      var parameters1 = new Dictionary();
 
      parameters1.Add("key", appkey);//你申请的key
 
      string result1 = sendPost(url1, parameters1, "get");
 
      JsonObject newObj1 = new JsonObject(result1);
      String errorCode1 = newObj1["error_code"].Value;
 
      if (errorCode1 == "0")
      {
 Debug.WriteLine("成功");
 Debug.WriteLine(newObj1);
      }
      else
      {
 //Debug.WriteLine("失败");
 Debug.WriteLine(newObj1["error_code"].Value+":"+newObj1["reason"].Value);
      }
 
 
      //2.电视频道列表
      string url2 = "http://japi.juhe.cn/tv/getChannel";
 
      var parameters2 = new Dictionary();
 
      parameters2.Add("key", appkey);//你申请的key
      parameters2.Add("pId" , ""); //电视分类id
 
      string result2 = sendPost(url2, parameters2, "get");
 
      JsonObject newObj2 = new JsonObject(result2);
      String errorCode2 = newObj2["error_code"].Value;
 
      if (errorCode2 == "0")
      {
 Debug.WriteLine("成功");
 Debug.WriteLine(newObj2);
      }
      else
      {
 //Debug.WriteLine("失败");
 Debug.WriteLine(newObj2["error_code"].Value+":"+newObj2["reason"].Value);
      }
 
 
      //3.电视台节目单列表
      string url3 = "http://japi.juhe.cn/tv/getProgram";
 
      var parameters3 = new Dictionary();
 
      parameters3.Add("key", appkey);//你申请的key
      parameters3.Add("code" , ""); //频道代码
      parameters3.Add("date" , ""); //日期(格式yyyy-MM-dd,默认为当天日期)
 
      string result3 = sendPost(url3, parameters3, "get");
 
      JsonObject newObj3 = new JsonObject(result3);
      String errorCode3 = newObj3["error_code"].Value;
 
      if (errorCode3 == "0")
      {
 Debug.WriteLine("成功");
 Debug.WriteLine(newObj3);
      }
      else
      {
 //Debug.WriteLine("失败");
 Debug.WriteLine(newObj3["error_code"].Value+":"+newObj3["reason"].Value);
      }
 
 
    }
 
    /// 

    /// Http (GET/POST)
    /// 
    /// 请求URL
    /// 请求参数
    /// 请求方法
    /// 响应内容
    static string sendPost(string url, IDictionary parameters, string method)
    {
      if (method.ToLower() == "post")
      {
 HttpWebRequest req = null;
 HttpWebResponse rsp = null;
 System.IO.Stream reqStream = null;
 try
 {
   req = (HttpWebRequest)WebRequest.Create(url);
   req.Method = method;
   req.KeepAlive = false;
   req.ProtocolVersion = HttpVersion.Version10;
   req.Timeout = 5000;
   req.ContentType = "application/x-www-form-urlencoded;charset=utf-8";
   byte[] postData = Encoding.UTF8.GetBytes(BuildQuery(parameters, "utf8"));
   reqStream = req.GetRequestStream();
   reqStream.Write(postData, 0, postData.Length);
   rsp = (HttpWebResponse)req.GetResponse();
   Encoding encoding = Encoding.GetEncoding(rsp.CharacterSet);
   return GetResponseAsString(rsp, encoding);
 }
 catch (Exception ex)
 {
   return ex.Message;
 }
 finally
 {
   if (reqStream != null) reqStream.Close();
   if (rsp != null) rsp.Close();
 }
      }
      else
      {
 //创建请求
 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url + "?" + BuildQuery(parameters, "utf8"));
 
 //GET请求
 request.Method = "GET";
 request.ReadWriteTimeout = 5000;
 request.ContentType = "text/html;charset=UTF-8";
 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
 Stream myResponseStream = response.GetResponseStream();
 StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
 
 //返回内容
 string retString = myStreamReader.ReadToEnd();
 return retString;
      }
    }
 
    /// 

    /// 组装普通文本请求参数。
    /// 
    /// Key-Value形式请求参数字典
    /// URL编码后的请求数据
    static string BuildQuery(IDictionary parameters, string encode)
    {
      StringBuilder postData = new StringBuilder();
      bool hasParam = false;
      IEnumerator> dem = parameters.GetEnumerator();
      while (dem.MoveNext())
      {
 string name = dem.Current.Key;
 string value = dem.Current.Value;
 // 忽略参数名或参数值为空的参数
 if (!string.IsNullOrEmpty(name))//&& !string.IsNullOrEmpty(value)
 {
   if (hasParam)
   {
     postData.Append("&");
   }
   postData.Append(name);
   postData.Append("=");
   if (encode == "gb2312")
   {
     postData.Append(HttpUtility.UrlEncode(value, Encoding.GetEncoding("gb2312")));
   }
   else if (encode == "utf8")
   {
     postData.Append(HttpUtility.UrlEncode(value, Encoding.UTF8));
   }
   else
   {
     postData.Append(value);
   }
   hasParam = true;
 }
      }
      return postData.ToString();
    }
 
    /// 

    /// 把响应流转换为文本。
    /// 
    /// 响应流对象
    /// 编码方式
    /// 响应文本
    static string GetResponseAsString(HttpWebResponse rsp, Encoding encoding)
    {
      System.IO.Stream stream = null;
      StreamReader reader = null;
      try
      {
 // 以字符流的方式读取HTTP响应
 stream = rsp.GetResponseStream();
 reader = new StreamReader(stream, encoding);
 return reader.ReadToEnd();
      }
      finally
      {
 // 释放资源
 if (reader != null) reader.Close();
 if (stream != null) stream.Close();
 if (rsp != null) rsp.Close();
      }
    }
  }
}