如何使用android拍攝圖像並存儲在服務器上

Question

我試圖從Android設備上傳圖像到遠程服務器。到目前爲止，我有以下代碼，但保存在遠程服務器上的映像始終爲零字節。

 HttpURLConnection conn; 

    String serverpath = "http://110.172.27.47:9499"; 
    String MREPORTER_SERVLET_PATH="/mreporter/servlet/MReporterServlet"; 


    url = serverpath + MREPORTER_SERVLET_PATH; 

    try 
    { 
     URL url = new URL(serverpath + MREPORTER_SERVLET_PATH); 
     conn = (HttpURLConnection) url.openConnection(); 
     conn.setDoInput(true); 
     conn.setDoOutput(true); 
     conn.setUseCaches(false); 

     conn.setRequestMethod("POST"); 

     conn.setRequestProperty("Connection", "Keep-Alive"); 
     conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+ "*****"); 

     conn.setRequestProperty(USER_NAME_REQUEST_PARAMETER, "parth"); 
     conn.setRequestProperty(EVENT_NAME_REQUEST_PARAMETER, "null"); 
     conn.setRequestProperty(CAMERAID_REQUEST_PARAMETER, "1"); 
     conn.setRequestProperty(ACTION_MODE_PARAMETER, "POST_DATA_ACTION"); 

     DataOutputStream dos = new DataOutputStream(conn.getOutputStream()); 

     Log.i("Response", conn.getResponseCode() + ""); 

     int response = conn.getResponseCode(); 

     if (response == 200) 
     { 
      Log.i("size",data.length + ""); 

      if (data.length > 0) 
      { 
       dos.write(data); 
       Log.i("200","OK"); 
      } 
      else 
      { 
       Log.i("Error", response + ""); 
      } 
     } 

Answer 1

我回顧thw的代碼，並得到解決方案在這裏肯定有效。

 HttpURLConnection conn; 
    String serverpath = "http://110.172.27.47:9499"; 
    String MREPORTER_SERVLET_PATH="/mreporter/servlet/MReporterServlet"; 


    url = serverpath + MREPORTER_SERVLET_PATH; 

    try 
    { 
     URL url = new URL(serverpath + MREPORTER_SERVLET_PATH); 
     conn = (HttpURLConnection) url.openConnection(); 
     conn.setDoInput(true); 
     conn.setDoOutput(true); 
     conn.setUseCaches(false); 

     conn.setRequestMethod("POST"); 

     conn.setRequestProperty("Connection", "Keep-Alive"); 
     conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+ "*****"); 

     conn.setRequestProperty(USER_NAME_REQUEST_PARAMETER, "parth"); 
     conn.setRequestProperty(EVENT_NAME_REQUEST_PARAMETER, "null"); 
     conn.setRequestProperty(CAMERAID_REQUEST_PARAMETER, "1"); 
     conn.setRequestProperty(ACTION_MODE_PARAMETER, "POST_DATA_ACTION"); 

     DataOutputStream dos = new DataOutputStream(conn.getOutputStream()); 

     Log.i("Response", conn.getResponseCode() + ""); 

     int response = conn.getResponseCode(); 
     dos.write(data); 
} 

Answer 2

我認爲這個example可以幫助你。