1.Net调用URL 接口服务
using System; using System.Collections; using System.Configuration; using System.Data; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Text; using System.Net; using System.IO; public partial class _Default : System.Web.UI.Page { /********************************************************************************************************/ //请求数据接口 /********************************************************************************************************/ #region 请求数据接口 protected void send() { string url="http://apis.juhe.cn/ip/ip2addr"; //数据URL string ip = "www.juhe.cn"; //需要查询的IP地址 string appkey = "xxxxxxxxxxxxxxxxxxxx"; StringBuilder sbTemp = new StringBuilder(); //POST 传值 sbTemp.Append("ip="+ip+"&appkey=" + appkey); byte[] bTemp = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(sbTemp.ToString()); String postReturn = doPostRequest(url, bTemp); //Response.Write("Post response is: " + postReturn); //测试返回结果 JsonObject newObj = new JsonObject(postReturn); String errorCode = newObj[‘error_code‘].Value; if(errorCode ==‘0‘){ //成功的请求 Response.Write(newObj[‘result‘][‘area‘]); }else{ //请求失败,错误原因 Response.Write(newObj[‘reason‘].Value); } } //POST方式发送得结果 private static String doPostRequest(string url, byte[] bData) { System.Net.HttpWebRequest hwRequest; System.Net.HttpWebResponse hwResponse; string strResult = string.Empty; try { hwRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url); hwRequest.Timeout = 5000; hwRequest.Method = "POST"; hwRequest.ContentType = "application/x-www-form-urlencoded"; hwRequest.ContentLength = bData.Length; System.IO.Stream smWrite = hwRequest.GetRequestStream(); smWrite.Write(bData, 0, bData.Length); smWrite.Close(); } catch (System.Exception err) { WriteErrLog(err.ToString()); return strResult; } //get response try { hwResponse = (HttpWebResponse)hwRequest.GetResponse(); StreamReader srReader = new StreamReader(hwResponse.GetResponseStream(), Encoding.UTF8); strResult = srReader.ReadToEnd(); srReader.Close(); hwResponse.Close(); } catch (System.Exception err) { WriteErrLog(err.ToString()); } return strResult; } private static void WriteErrLog(string strErr) { Console.WriteLine(strErr); System.Diagnostics.Trace.WriteLine(strErr); } #endregion }
2.C#调用URL接口服务
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net.Security; using System.Security.Cryptography.X509Certificates; using System.Net; using System.IO; using System.IO.Compression; using System.Text.RegularExpressions; using System.Web.Script.Serialization; namespace IP { class Program { private static readonly string DefaultUserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)"; static void Main(string[] args) { string appKey = "##########################"; //申请的对应的KEY string ip = "www.juhe.cn"; string tagUrl = "http://apis.juhe.cn/ip/ip2addr?ip=" + ip + "&key=" + appKey; CookieCollection cookies = new CookieCollection(); HttpWebResponse response = CreateGetHttpResponse(tagUrl, null, null, cookies); StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8); String retValue = sr.ReadToEnd(); sr.Close(); var serializer = new JavaScriptSerializer(); IPObj ret = serializer.Deserialize<IPObj>(retValue); bool result = ret.error_code.Equals("0", StringComparison.Ordinal); if (result) { Console.Write(ret.result.location + " " + ret.result.area); } else { Console.Write("error_code:"+ret.error_code+",reason:"+ret.reason); } } /// <summary> /// 创建GET方式的HTTP请求 /// </summary> /// <param name="url">请求的URL</param> /// <param name="timeout">请求的超时时间</param> /// <param name="userAgent">请求的客户端浏览器信息,可以为空</param> /// <param name="cookies">随同HTTP请求发送的Cookie信息,如果不需要身份验证可以为空</param> /// <returns></returns> public static HttpWebResponse CreateGetHttpResponse(string url, int? timeout, string userAgent, CookieCollection cookies) { if (string.IsNullOrEmpty(url)) { throw new ArgumentNullException("url"); } HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest; request.Method = "GET"; request.UserAgent = DefaultUserAgent; if (!string.IsNullOrEmpty(userAgent)) { request.UserAgent = userAgent; } if (timeout.HasValue) { request.Timeout = timeout.Value; } if (cookies != null) { request.CookieContainer = new CookieContainer(); request.CookieContainer.Add(cookies); } return request.GetResponse() as HttpWebResponse; } } class IPObj { public string error_code { get; set; } public string reason { get; set; } public Result result { get; set; } } class Result { public string area { get; set; } public string location { get; set; } } }
3.Java调用URL接口服务
package com.test; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import net.sf.json.JSONObject; public class Demo { public static void main(String[] args) { String city = "suzhou";//参数 String url = "http://web.juhe.cn:8080/environment/air/cityair?city=";//url为请求的api接口地址 String key= "################################";//申请的对应key String urlAll = new StringBuffer(url).append(city).append("&key=").append(key).toString(); String charset ="UTF-8"; String jsonResult = get(urlAll, charset);//得到JSON字符串 JSONObject object = JSONObject.fromObject(jsonResult);//转化为JSON类 String code = object.getString("error_code");//得到错误码 //错误码判断 if(code.equals("0")){ //根据需要取得数据 JSONObject jsonObject = (JSONObject)object.getJSONArray("result").get(0); System.out.println(jsonObject.getJSONObject("citynow").get("AQI")); }else{ System.out.println("error_code:"+code+",reason:"+object.getString("reason")); } } /** * * @param urlAll:请求接口 * @param charset:字符编码 * @return 返回json结果 */ public static String get(String urlAll,String charset){ BufferedReader reader = null; String result = null; StringBuffer sbf = new StringBuffer(); String userAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";//模拟浏览器 try { URL url = new URL(urlAll); HttpURLConnection connection = (HttpURLConnection)url.openConnection(); connection.setRequestMethod("GET"); connection.setReadTimeout(30000); connection.setConnectTimeout(30000); connection.setRequestProperty("User-agent",userAgent); connection.connect(); InputStream is = connection.getInputStream(); reader = new BufferedReader(new InputStreamReader( is, charset)); String strRead = null; while ((strRead = reader.readLine()) != null) { sbf.append(strRead); sbf.append("\r\n"); } reader.close(); result = sbf.toString(); } catch (Exception e) { e.printStackTrace(); } return result; } }
时间: 2024-11-05 20:32:41