通過POST發送字符串參數ID

Question

我想知道如何將字符串參數傳遞給我的php文件，我想發送我的用戶的「id」，但是此行不起作用： conn.setRequestProperty（「idComplejo」， idComplejoSeleccionado）;

我不知道爲什麼，但不工作。另外我正在發送一個文件將圖像上傳到我的服務器。 爲了得到我的PHP文件中的id我寫道：$ id = _POST ['idComplejo'];

public int uploadFile(String sourceFileUri) { 


    String fileName = sourceFileUri; 

    HttpURLConnection conn = null; 
    DataOutputStream dos = null; 
    String lineEnd = "\r\n"; 
    String twoHyphens = "--"; 
    String boundary = "*****"; 
    int bytesRead, bytesAvailable, bufferSize; 
    byte[] buffer; 
    int maxBufferSize = 1 * 1024 * 1024; 
    File sourceFile = new File(sourceFileUri); 

    if (!sourceFile.isFile()) { 

     dialog.dismiss(); 

     Log.e("uploadFile", "Source File not exist :" 
       +uploadFilePath + "" + uploadFileName); 

     runOnUiThread(new Runnable() { 
      public void run() { 
       messageText.setText("Source File not exist :" 
         +uploadFilePath + "" + uploadFileName); 
      } 
     }); 

     return 0; 

    } 
    else 
    { 
     try { 

      // open a URL connection to the Servlet 
      FileInputStream fileInputStream = new FileInputStream(sourceFile); 
      URL url = new URL(upLoadServerUri); 

      // Open a HTTP connection to the URL 
      conn = (HttpURLConnection) url.openConnection(); 
      conn.setDoInput(true); // Allow Inputs 
      conn.setDoOutput(true); // Allow Outputs 
      conn.setUseCaches(false); // Don't use a Cached Copy 
      conn.setRequestMethod("POST"); 
      conn.setRequestProperty("Connection", "close"); 
      conn.setRequestProperty("ENCTYPE", "multipart/form-data"); 
      conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary); 
      conn.setRequestProperty("uploaded_file", fileName); 


      //conn.setRequestProperty("idComplejo", idComplejoSeleccionado); 

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

      dos.writeBytes(twoHyphens + boundary + lineEnd); 
      dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\"" 
        + fileName + "\"" + lineEnd); 

      dos.writeBytes(lineEnd); 

      // create a buffer of maximum size 
      bytesAvailable = fileInputStream.available(); 

      bufferSize = Math.min(bytesAvailable, maxBufferSize); 
      buffer = new byte[bufferSize]; 

      // read file and write it into form... 
      bytesRead = fileInputStream.read(buffer, 0, bufferSize); 

      while (bytesRead > 0) { 

       dos.write(buffer, 0, bufferSize); 
       bytesAvailable = fileInputStream.available(); 
       bufferSize = Math.min(bytesAvailable, maxBufferSize); 
       bytesRead = fileInputStream.read(buffer, 0, bufferSize); 

      } 

      // send multipart form data necesssary after file data... 
      dos.writeBytes(lineEnd); 
      dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); 

      // Responses from the server (code and message) 
      serverResponseCode = conn.getResponseCode(); 
      String serverResponseMessage = conn.getResponseMessage(); 
      System.out.println(serverResponseMessage); 
      Log.i("uploadFile", "HTTP Response is : " 
        + serverResponseMessage + ": " + serverResponseCode); 

      if(serverResponseCode == 200){ 

       runOnUiThread(new Runnable() { 
        public void run() { 

         String msg = "File Upload Completed.\n\n See uploaded file here : \n\n" 
           +" http://www.androidexample.com/media/uploads/" 
           +uploadFileName; 

         messageText.setText(msg); 
         Toast.makeText(UploadToServer.this, "File Upload Complete.", 
           Toast.LENGTH_SHORT).show(); 
        } 
       }); 
      } 

      //close the streams // 
      fileInputStream.close(); 
      dos.flush(); 
      dos.close(); 

     } catch (MalformedURLException ex) { 

      dialog.dismiss(); 
      ex.printStackTrace(); 

      runOnUiThread(new Runnable() { 
       public void run() { 
        messageText.setText("MalformedURLException Exception : check script url."); 
        Toast.makeText(UploadToServer.this, "MalformedURLException", Toast.LENGTH_SHORT).show(); 
       } 
      }); 

      Log.e("Upload file to server", "error: " + ex.getMessage(), ex); 
     } catch (Exception e) { 

      dialog.dismiss(); 
      e.printStackTrace(); 

      runOnUiThread(new Runnable() { 
       public void run() { 
        messageText.setText("Got Exception : see logcat "); 
        Toast.makeText(UploadToServer.this, "Got Exception : see logcat ", 
          Toast.LENGTH_SHORT).show(); 
       } 
      }); 
      Log.e("Upload file to server Exception", "Exception : " 
        + e.getMessage(), e); 
     } 
     dialog.dismiss(); 
     return serverResponseCode; 

    } // End else block 
} 

感謝您的幫助！

Answer 1

您的代碼不完整。什麼是變數idComplejoSeleccionado？ 如果它是一個int，那麼你可能需要將它轉換爲String。 希望這會有所幫助。

這裏投下您的int一個字符串的方式：

String.valueOf(idComplejoSeleccionado) 

試着用這個替換您的部分代碼：

conn.setRequestProperty("idComplejo", String.valueOf(idComplejoSeleccionado));