|  |  | 
 |  |  | package com.doumee.core.utils; | 
 |  |  |  | 
 |  |  | import org.springframework.http.HttpMethod; | 
 |  |  |  | 
 |  |  | import javax.net.ssl.*; | 
 |  |  | import java.io.ByteArrayOutputStream; | 
 |  |  | import java.io.InputStream; | 
 |  |  | 
 |  |  |         } | 
 |  |  |         return null; | 
 |  |  |     } | 
 |  |  |     public static InputStream connectionInputsteam(String url,String method,String data,String contentType ){ | 
 |  |  |         HttpURLConnection connection = null; | 
 |  |  |         try { | 
 |  |  |             URL _url = new URL(url); | 
 |  |  |             connection = (HttpURLConnection) _url.openConnection(); | 
 |  |  |             connection.setRequestMethod(method); | 
 |  |  |             connection.setDoOutput(true); | 
 |  |  |             connection.setDoInput(true); | 
 |  |  |             connection.setUseCaches(false); | 
 |  |  |             if(contentType != null){ | 
 |  |  |                 connection.setRequestProperty("Content-Type", contentType); | 
 |  |  |             } | 
 |  |  |             connection.connect(); | 
 |  |  |             if(data != null){ | 
 |  |  |                 OutputStream outputStream = connection.getOutputStream(); | 
 |  |  |                 outputStream.write(data.getBytes("utf-8")); | 
 |  |  |                 outputStream.close(); | 
 |  |  |             } | 
 |  |  |             int responseCode = connection.getResponseCode(); | 
 |  |  |             if (responseCode == HttpsURLConnection.HTTP_OK) { | 
 |  |  |                return  connection.getInputStream(); | 
 |  |  |             } | 
 |  |  |         } catch (Exception e) { | 
 |  |  |             e.printStackTrace(); | 
 |  |  |         } finally { | 
 |  |  |             if(connection != null){ | 
 |  |  |                 connection.disconnect(); | 
 |  |  |             } | 
 |  |  |         } | 
 |  |  |         return null; | 
 |  |  |     } | 
 |  |  |     public static String connectionHttp(String url,String method,String data,String contentType ){ | 
 |  |  |         HttpURLConnection connection = null; | 
 |  |  |         try { |