[点晴永久免费OA]C#根据ip获取城市地址
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用的API是百度、新浪、淘宝: 1、首先是一个检测获取的值是不是中文的方法,因为有的ip只能识别出来某省,而城市名称则为空返回的json里会出现null或undefined。 1 public static bool HasChinese(string str) 2 { 3 return Regex.IsMatch(str, @"[u4e00-u9fa5]"); 4 } 百度的API /// <summary> /// 百度api /// </summary> /// <returns></returns> public static string GetBaiduIp(string ip) { try { string cs = ""; string url = "http://api.map.baidu.com/location/ip?ak=GlfVlFKSc6Y7aSr73IHM3lQI&ip=" + ip; WebClient client = new WebClient(); var buffer = client.DownloadData(url); string jsonText = Encoding.UTF8.GetString(buffer); JObject jo = JObject.Parse(jsonText); var txt = jo["content"]["address_detail"]["city"]; JToken st = txt; string str = st.ToString(); if (str == "") { cs = GetCS(ip); return cs; } int s = str.IndexOf('市'); string css = str.Substring(0, s); bool bl = HasChinese(css); if (bl) { cs = css; } else { cs = GetCS(ip); } return cs; } catch { return GetIPCitys(ip); } } 新浪API(这个是直接获取网页源代码,然后抓取) 1 /// <summary> 2 /// 新浪api 3 /// </summary> 4 /// <param name="ip"></param> 5 /// <returns></returns> 6 public static string GetCS(string ip) 7 { 8 try { 9 string url = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?ip=" + ip; 10 WebClient MyWebClient = new WebClient(); 11 MyWebClient.Credentials = CredentialCache.DefaultCredentials;//获取或设置用于向Internet资源的请求进行身份验证的网络凭据 12 Byte[] pageData = MyWebClient.DownloadData(url); //从指定网站下载数据 13 string stt = Encoding.GetEncoding("GBK").GetString(pageData).Trim(); 14 return stt.Substring(stt.Length - 2, 2); 15 } 16 catch 17 { 18 return "未知"; 19 } 20 21 } 淘宝API 1 /// <summary> 2 /// 淘宝api 3 /// </summary> 4 /// <param name="strIP"></param> 5 /// <returns></returns> 6 public static string GetIPCitys(string strIP) 7 { 8 try 9 { 10 string Url = "http://ip.taobao.com/service/getIpInfo.php?ip=" + strIP + ""; 11 12 System.Net.WebRequest wReq = System.Net.WebRequest.create(Url); 13 wReq.Timeout = 2000; 14 System.Net.WebResponse wResp = wReq.GetResponse(); 15 System.IO.Stream respStream = wResp.GetResponseStream(); 16 using (System.IO.StreamReader reader = new System.IO.StreamReader(respStream)) 17 { 18 string jsonText = reader.ReadToEnd(); 19 JObject ja = (JObject)JsonConvert.DeserializeObject(jsonText); 20 if (ja["code"].ToString() == "0") 21 { 22 string c = ja["data"]["city"].ToString(); 23 int ci = c.IndexOf('市'); 24 if (ci != -1) 25 { 26 c = c.Remove(ci, 1); 27 } 28 return c; 29 } 30 else 31 { 32 return "未知"; 33 } 34 } 35 } 36 catch (Exception) 37 { 38 return ("未知"); 39 } 40 } 该文章在 2022/5/31 11:04:36 编辑过
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