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;
//----------------------------------
// 全国车辆违章调用示例代码 － 聚合数据
// 在线接口文档：http://www.juhe.cn/docs/36
// 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.获取支持城市参数接口
string url1 = "http://v.juhe.cn/wz/citys";
var parameters1
= new Dictionary
<string,
string>();
parameters1.Add("province" , ""); //默认全部，省份简写，如：ZJ、JS
parameters1.Add("dtype" , ""); //返回数据格式：json或xml或jsonp,默认json
parameters1.Add("format" , ""); //格式选择1或2，默认1
parameters1.Add("callback" , ""); //返回格式选择jsonp时，必须传递
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.请求违章查询接口
string url2 = "http://v.juhe.cn/wz/query";
var parameters2
= new Dictionary
<string,
string>();
parameters2.Add("dtype" , ""); //返回数据格式：json或xml或jsonp,默认json
parameters2.Add("callback" , ""); //返回格式选择jsonp时，必须传递
parameters2.Add("key", appkey);//你申请的key
parameters2.Add("city" , ""); //城市代码 *
parameters2.Add("hphm" , ""); //号牌号码 完整7位 ,需要utf8 urlencode*
parameters2.Add("hpzl" , ""); //号牌类型，默认02
parameters2.Add("engineno" , ""); //发动机号 (根据城市接口中的参数填写)
parameters2.Add("classno" , ""); //车架号 (根据城市接口中的参数填写)
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.接口剩余请求次数查询
string url3 = "http://v.juhe.cn/wz/status";
var parameters3
= new Dictionary
<string,
string>();
parameters3.Add("key", appkey);//你申请的key
parameters3.Add("dtype" , ""); //返回数据的格式,xml或json，默认json
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();
}
}
}
}