使用android將圖像上傳到apache tomcat服務器

Question

我想將圖像上傳到我的本地apache tomscat服務器，並且正在尋找示例代碼。 請讓我知道如果服務器允許或不reciving文件，如果有任何其他的方法從Android將圖像發送到Apache Tomcat服務器

Answer 1

檢查;）

import java.io.DataOutputStream; 
import java.io.FileInputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import java.net.HttpURLConnection; 
import java.net.MalformedURLException; 
import java.net.URL; 

import android.util.Log; 

public class HttpFileUploader { 

    URL connectURL; 
    String params; 
    String responseString; 
    String fileName; 
    byte[] dataToServer; 
    FileInputStream fileInputStream = null; 

    HttpFileUploader(String urlString, String params, String fileName) { 
     try { 
      connectURL = new URL(urlString); 
     } catch (Exception ex) { 
      Log.i("URL FORMATION", "MALFORMATED URL"); 
     } 
     this.params = params + "="; 
     this.fileName = fileName; 

    } 



    void doStart(FileInputStream stream) { 
     fileInputStream = stream; 

     String exsistingFileName = "asdf.png"; 

     String lineEnd = "\r\n"; 
     String twoHyphens = "--"; 
     String boundary = "*****"; 
     String Tag = "3rd"; 
     try { 
      // ------------------ CLIENT REQUEST 

      Log.e(Tag, "Starting to bad things"); 
      // Open a HTTP connection to the URL 

      HttpURLConnection conn = (HttpURLConnection) connectURL 
        .openConnection(); 

      // Allow Inputs 
      conn.setDoInput(true); 

      // Allow Outputs 
      conn.setDoOutput(true); 

      // Don't use a cached copy. 
      conn.setUseCaches(false); 

      // Use a post method. 
      conn.setRequestMethod("POST"); 

      conn.setRequestProperty("Connection", "Keep-Alive"); 

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

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

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

      Log.e(Tag, "Headers are written"); 

      // create a buffer of maximum size 

      int bytesAvailable = fileInputStream.available(); 
      int maxBufferSize = 1024; 
      int bufferSize = Math.min(bytesAvailable, maxBufferSize); 
      byte[] buffer = new byte[bufferSize]; 

      // read file and write it into form... 

      int 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); 

      // close streams 
      Log.e(Tag, "File is written"); 
      fileInputStream.close(); 
      dos.flush(); 

      InputStream is = conn.getInputStream(); 
      // retrieve the response from server 
      int ch; 

      StringBuffer b = new StringBuffer(); 
      while ((ch = is.read()) != -1) { 
       b.append((char) ch); 
      } 
      String s = b.toString(); 
      Log.i("Response", s); 
      dos.close(); 

     } catch (MalformedURLException ex) { 
      Log.e(Tag, "error: " + ex.getMessage(), ex); 
     } 

     catch (IOException ioe) { 
      Log.e(Tag, "error: " + ioe.getMessage(), ioe); 
     } 
    } 

}