关于api:聚合数据常用快递接口代码

聚合数据罕用快递接口
申请地址：https://www.juhe.cn/docs/api/id/43

ashx代码

 publicvoid ProcessRequest(HttpContext context)       {           context.Response.ContentType = "text/plain";           string appkey ="";//配置您申请的appkey                           //1.罕用快递查问API                      string url1 ="http://v.juhe.cn/exp/index";           var parameters1 =newDictionary<string,string>();           parameters1.Add("com","");//须要查问的快递公司编号                      parameters1.Add("no","");//须要查问的订单号                      parameters1.Add("key", appkey);//你申请的key                      parameters1.Add("dtype","json");//返回数据的格局,xml或json，默认json                       string result1 = sendPost(url1,parameters1,"get");           JsonObject newObj1 =newJsonObject(result1);           String errorCode1 =newObj1["error_code"].Value;           if (errorCode1 =="0")           {              context.Response.Write(newObj1);               return;           }           else           {               Console.WriteLine(newObj1["error_code"].Value + ":" + newObj1["reason"].Value);           }       }        publicbool IsReusable       {           get           {               returnfalse;           }       }       ///<summary>       /// Http (GET/POST)       ///</summary>       ///<param name="url">申请URL</param>       ///<param name="parameters">申请参数</param>       ///<param name="method">申请办法</param>       ///<returns>响应内容</returns>       staticstring 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);                   returnGetResponseAsString(rsp, encoding);               }               catch (Exception ex)               {                   return ex.Message;               }               finally               {                   if (reqStream !=null) reqStream.Close();                   if (rsp !=null) rsp.Close();               }           }           else           {               //创立申请               HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url + "?" +BuildQuery(parameters,"utf8"));                //GET申请               request.Method = "GET";               request.ReadWriteTimeout =5000;               request.ContentType = "text/html;charset=UTF-8";               HttpWebResponse response = (HttpWebResponse)request.GetResponse();               Stream myResponseStream =response.GetResponseStream();               StreamReader myStreamReader =newStreamReader(myResponseStream,Encoding.GetEncoding("utf-8"));                //返回内容               string retString =myStreamReader.ReadToEnd();               return retString;           }       }        ///<summary>       ///组装一般文本申请参数。       ///</summary>       ///<param name="parameters">Key-Value模式申请参数字典</param>       ///<returns>URL编码后的申请数据</returns>       staticstring BuildQuery(IDictionary<string,string> parameters,string encode)       {           StringBuilder postData =newStringBuilder();           bool hasParam =false;           IEnumerator<KeyValuePair<string,string>> dem =parameters.GetEnumerator();           while (dem.MoveNext())           {               string name =dem.Current.Key;               string value =dem.Current.Value;               //疏忽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")));                   }                   elseif (encode =="utf8")                   {                       postData.Append(HttpUtility.UrlEncode(value,Encoding.UTF8));                   }                   else                   {                       postData.Append(value);                   }                   hasParam = true;               }           }           returnpostData.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>       staticstring GetResponseAsString(HttpWebResponse rsp, Encoding encoding)       {           System.IO.Stream stream =null;           StreamReader reader =null;           try           {               //以字符流的形式读取HTTP响应               stream =rsp.GetResponseStream();               reader = newStreamReader(stream, encoding);               return reader.ReadToEnd();           }           finally           {               //开释资源               if (reader !=null) reader.Close();               if (stream !=null) stream.Close();               if (rsp !=null) rsp.Close();           }       }

2.前台代码

<script>       $(function () {           $.ajax({               type: 'post',               url: '/GetExpress.ashx',               data: "{ }",               success: function (data) {                   alert(0);                   alert(data);                   alert(eval("(" + data +")").reason);                   alert(eval("(" + data +")").result.company);                   var obj = eval("(" + data + ")").result.list;                   //循环输入物流信息                   for(var key in obj)                   {                       alert(obj[key].remark);                   }                },               error: function (XMLHttpRequest,textStatus, errorThrown) {                   alert(1);                   alert(XMLHttpRequest.status);                   alert(XMLHttpRequest.readyState);                   alert(textStatus);               }           });       })</script>

3.常见问题

XMLHttpRequest.status=200 (失常响应)
XMLHttpRequest.readyState=4 (失常接管)
ajax也会提醒一个parseerror的谬误.

可能的起因是返回的数据格式与你ajax中写的数据格式不统一，返回的是text格局，而你写的是json格局

JQuery将文本转化成JSON对象须要留神的问题

在JQuery的许多办法中，很多办法的参数能够传入一个JSON对象，比方Ajax办法的第二个参数。怎么将文本转化成JSON对象，须要留神以下问题

 varcpro_id="u2261530";(window["cproStyleApi"] =window["cproStyleApi"] ||{})[cpro_id]={at:"3",rsi0:"680",rsi1:"200",pat:"6",tn:"baiduCustNativeAD",rss1:"#FFFFFF",conBW:"1",adp:"1",ptt:"0",titFF:"%E5%BE%AE%E8%BD%AF%E9%9B%85%E9%BB%91",titFS:"14",rss2:"#000000",titSU:"0",ptbg:"90",piw:"0",pih:"0",ptp:"0"}

1）$.parseJSON办法返回的是一个字符串，而不是JSON对象。
2）要将字符串转化成对象，很容易想起JS中的eval办法。事实上是能够的，不过须要加上括号。如var js="{\"PageIndex\":\"1\"}";varobj=eval("("+js+")");。不过应用eval,是不平安的，因为其能够编译任何js代码。
3）下载一个JSON解析器，因为其只认可JSON文本。这样就比拟平安了。
JSON官方网站提供了这么一个脚本。地址：http://www.JSON.org/json2.js。应用起来比较简单，引入该文件后，如：JSON.parse($("#ctl00_ContentPlaceHolder1_hfSearch").val().toString())。
4）应用JSON.parse办法或者是$.parseJSON办法时，留神JSON数据的name和value用双引号括起来，对于$.parseJSON办法，还要将JSON字符串用单引号括起来再转换，对于JSON.parse办法，就不用了。真TMD的浪费时间。留神这几个技巧，在操作JSON数据时，能够少走不少弯路。
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原文链接：https://blog.csdn.net/beautif...