基于C#的电视台节目表接口调用代码

接口地址：

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<string, string>();
 
      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<string, string>();
 
      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<string, string>();
 
      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);
      }
 
 
    }
 
    /// <summary>
    /// http (get/post)
    /// </summary>
    /// <param name="url">请求url</param>
    /// <param name="parameters">请求参数</param>
    /// <param name="method">请求方法</param>
    /// <returns>响应内容</returns>
    static string sendpost(string url, idictionary<string, string> 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;
      }
    }
 
    /// <summary>
    /// 组装普通文本请求参数。
    /// </summary>
    /// <param name="parameters">key-value形式请求参数字典</param>
    /// <returns>url编码后的请求数据</returns>
    static string buildquery(idictionary<string, string> parameters, string encode)
    {
      stringbuilder postdata = new stringbuilder();
      bool hasparam = false;
      ienumerator<keyvaluepair<string, string>> 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();
    }
 
    /// <summary>
    /// 把响应流转换为文本。
    /// </summary>
    /// <param name="rsp">响应流对象</param>
    /// <param name="encoding">编码方式</param>
    /// <returns>响应文本</returns>
    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();
      }
    }
  }
}