eoLinker-API Shop IP地址查询 Java调用示例代码

IP地址查询

根据IP地址或者域名，查询该IP所属的区域

该产品拥有以下APIs：

1.         查询IP信息

注意，该示例代码仅适用于 www.apishop.net 网站下API 使用该产品前，您需要通过 https://www.apishop.net/#/api/detail/?productID=118申请API服务

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1.查询IP信息

package net.apishop.www.controller;

importjava.io.DataOutputStream;
importjava.io.IOException;
importjava.io.InputStream;
importjava.io.UnsupportedEncodingException;
importjava.net.HttpURLConnection;
importjava.net.MalformedURLException;
importjava.net.URL;
importjava.net.URLEncoder;
importjava.util.HashMap;
importjava.util.Map;
importcom.alibaba.fastjson.JSONObject;

/**
 *httpUrlConnection访问远程接口工具
 */
publicclass Api
{

   /**
    * 方法体说明：向远程接口发起请求，返回字节流类型结果
    * param url 接口地址
    * param requestMethod 请求方式
    * param params 传递参数    重点：参数值需要用Base64进行转码
    * return InputStream 返回结果
    */
   public static InputStream httpRequestToStream(String url, String requestMethod,Map<String, String> params)
   {
       InputStream is = null;
       try
       {
           String parameters = "";
           boolean hasParams = false;
           // 将参数集合拼接成特定格式，如name=zhangsan&age=24
           for (String key : params.keySet())
           {
               String value = URLEncoder.encode(params.get(key), "UTF-8");
               parameters += key + "=" + value + "&";
               hasParams = true;
           }
           if (hasParams)
           {
               parameters = parameters.substring(0, parameters.length() - 1);
           }

           // 请求方式是否为get
           boolean isGet = "get".equalsIgnoreCase(requestMethod);
           // 请求方式是否为post
           boolean isPost = "post".equalsIgnoreCase(requestMethod);
           if (isGet)
           {
               url += "?" + parameters;
           }

           URL u = new URL(url);
           HttpURLConnection conn = (HttpURLConnection) u.openConnection();

           // 请求的参数类型(使用restlet框架时，为了兼容框架，必须设置Content-Type为“”空)
           conn.setRequestProperty("Content-Type","application/octet-stream");
           // conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
           // 设置连接超时时间
           conn.setConnectTimeout(50000);
           // 设置读取返回内容超时时间
           conn.setReadTimeout(50000);
           // 设置向HttpURLConnection对象中输出，因为post方式将请求参数放在http正文内，因此需要设置为ture，默认false
           if (isPost)
           {
               conn.setDoOutput(true);
           }
           // 设置从HttpURLConnection对象读入，默认为true
           conn.setDoInput(true);
           // 设置是否使用缓存，post方式不能使用缓存
           if (isPost)
           {
               conn.setUseCaches(false);
           }
           // 设置请求方式，默认为GET
           conn.setRequestMethod(requestMethod);

           // post方式需要将传递的参数输出到conn对象中
           if (isPost)
           {
               DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
               dos.writeBytes(parameters);
               dos.flush();
               dos.close();
           }

           // 从HttpURLConnection对象中读取响应的消息
           // 执行该语句时才正式发起请求
           is = conn.getInputStream();
       }
       catch(UnsupportedEncodingException e)
       {
           e.printStackTrace();
       }
       catch(MalformedURLException e)
       {
           e.printStackTrace();
       }
       catch(IOException e)
       {
           e.printStackTrace();
       }
       return is;
   }

   public static void main(String args[])
   {
       String url ="https://api.apishop.net/common/postcode/getPostCodeByAddr";
       String requestMethod = "POST";
       Map<String, String> params = new HashMap<String,String>();        
       params.put("ip", ""); //ip地址       
       String result = null;
       try
       {
           InputStream is = httpRequestToStream(url, requestMethod, params);
           byte[] b = new byte[is.available()];
           is.read(b);
           result = new String(b);
       }
       catch(IOException e)
       {
           e.printStackTrace();
       }
       if (result != null)
       {
           JSONObject jsonObject = JSONObject.parseObject(result);
           String status_code = jsonObject.getString("statusCode");
           if (status_code == "000000")
           {
           // 状态码为000000, 说明请求成功
           System.out.println("请求成功：" +jsonObject.getString("result"));
           }
           else
           {
           // 状态码非000000, 说明请求失败
           System.out.println("请求失败：" +jsonObject.getString("desc"));
           }
       }
       else
       {
           // 返回内容异常，发送请求失败，以下可根据业务逻辑自行修改
           System.out.println("发送请求失败");
       }
   }
}