Java Code Examples for java.net.httpurlconnection#getContentLength()

public CameraInfo getCameraInfo() {
    HttpURLConnection connection = getMediaConnection("videos/MISC/", "version.txt", null);
    if(connection == null) return null;
    try {
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            int cl = connection.getContentLength();
            StringBuilder builder = cl > 0 ? new StringBuilder(cl) : new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                builder.append(line);
            }
            return new CameraInfo(builder.toString());
        } finally {
            connection.disconnect();
        }
    } catch (IOException e){
        Logger.warning(TAG, "Error getting version.txt", e);
    }
    return null;
}
 

/**
 * 获取文件大小 - 网络资源
 * @param httpUri 文件网络链接
 * @return 文件大小
 */
public static long getFileLengthNetwork(final String httpUri) {
    if (StringUtils.isSpace(httpUri)) return 0L;
    // 判断是否网络资源
    boolean isHttpRes = httpUri.toLowerCase().startsWith("http:") || httpUri.toLowerCase().startsWith("https:");
    if (isHttpRes) {
        try {
            HttpURLConnection conn = (HttpURLConnection) new URL(httpUri).openConnection();
            conn.setRequestProperty("Accept-Encoding", "identity");
            conn.connect();
            if (conn.getResponseCode() == 200) {
                return conn.getContentLength();
            }
            return 0L;
        } catch (Exception e) {
            JCLogUtils.eTag(TAG, e, "getFileLengthNetwork");
        }
    }
    return 0L;
}
 

/**
 * This method reads from a stream based on the passed connection
 * @param connection the connection to read from
 * @return the contents of the stream
 * @throws IOException if it cannot read from the http connection
 */
private static String getResponseContent(HttpURLConnection connection) throws IOException {
  // Use the content encoding to convert bytes to characters.
  String encoding = connection.getContentEncoding();
  if (encoding == null) {
    encoding = "UTF-8";
  }
  InputStreamReader reader = new InputStreamReader(connection.getInputStream(), encoding);
  try {
    int contentLength = connection.getContentLength();
    StringBuilder sb = (contentLength != -1)
        ? new StringBuilder(contentLength)
        : new StringBuilder();
    char[] buf = new char[1024];
    int read;
    while ((read = reader.read(buf)) != -1) {
      sb.append(buf, 0, read);
    }
    return sb.toString();
  } finally {
    reader.close();
  }
}
 

static Map<?, ?> jsonParse(final HttpURLConnection c, final boolean useErrorStream
    ) throws IOException {
  if (c.getContentLength() == 0) {
    return null;
  }
  final InputStream in = useErrorStream? c.getErrorStream(): c.getInputStream();
  if (in == null) {
    throw new IOException("The " + (useErrorStream? "error": "input") + " stream is null.");
  }
  try {
    final String contentType = c.getContentType();
    if (contentType != null) {
      final MediaType parsed = MediaType.valueOf(contentType);
      if (!MediaType.APPLICATION_JSON_TYPE.isCompatible(parsed)) {
        throw new IOException("Content-Type \"" + contentType
            + "\" is incompatible with \"" + MediaType.APPLICATION_JSON
            + "\" (parsed=\"" + parsed + "\")");
      }
    }
    ObjectMapper mapper = new ObjectMapper();
    return mapper.reader(Map.class).readValue(in);
  } finally {
    in.close();
  }
}
 

/**
 * Retrieves {@link InputStream} of image by URI (image is located in the network).
 *
 * @param imageUri Image URI
 * @param extra    Auxiliary object which was passed to {@link DisplayImageOptions.Builder#extraForDownloader(Object)
 *                 DisplayImageOptions.extraForDownloader(Object)}; can be null
 * @return {@link InputStream} of image
 * @throws IOException if some I/O error occurs during network request or if no InputStream could be created for
 *                     URL.
 */
protected InputStream getStreamFromNetwork(String imageUri, Object extra) throws IOException {
    HttpURLConnection conn = createConnection(imageUri, extra);

    int redirectCount = 0;
    while (conn.getResponseCode() / 100 == 3 && redirectCount < MAX_REDIRECT_COUNT) {
        conn = createConnection(conn.getHeaderField("Location"), extra);
        redirectCount++;
    }

    InputStream imageStream;
    try {
        imageStream = conn.getInputStream();
    } catch (IOException e) {
        // Read all data to allow reuse connection (http://bit.ly/1ad35PY)
        IoUtils.readAndCloseStream(conn.getErrorStream());
        throw e;
    }
    if (!shouldBeProcessed(conn)) {
        IoUtils.closeSilently(imageStream);
        throw new IOException("Image request failed with response code " + conn.getResponseCode());
    }

    return new ContentLengthInputStream(new BufferedInputStream(imageStream, BUFFER_SIZE), conn.getContentLength());
}
 

@Override
@Nullable
protected Number[] get(Event e) {
  try {
    HttpURLConnection c = (HttpURLConnection) new URL(url.getSingle(e)).openConnection();
    c.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11");
    Number n = c.getContentLength();
    c.disconnect();
    if (n.intValue() == -1) {
      skUtilities.prSysE("Url: '" + url.getSingle(e) + "' returned no information about the url's size!", getClass().getSimpleName());
    } else {
      return new Number[]{n};
    }
  } catch (Exception x) {
    skUtilities.prSysE("Error Reading from: '" + url.getSingle(e) + "' Is the site down?", getClass().getSimpleName(), x);
  }
  return null;
}
 

private void download(String url, String targetDirectory){
    String[] tempName = url.split("/");
    String filename = tempName[tempName.length-1].split("[?]")[0];

    try(InputStream inputStream = URI.create(url).toURL().openStream()){
        HttpURLConnection conn = (HttpURLConnection)URI.create(url).toURL().openConnection();

        Path targetPath = new File(targetDirectory + File.separator + filename).toPath();
        Files.copy(inputStream, targetPath, StandardCopyOption.REPLACE_EXISTING);

        int BYTES_PER_KB = 1024;
        double fileSize = ((double)conn.getContentLength() / BYTES_PER_KB);

        System.out.println("Media file downloaded successfully.");
        System.out.println(String.format("Media Location: %s", targetPath));
        System.out.println(String.format("Media Name: %s", filename));
        System.out.println(String.format("Media Size: %.2f kb", fileSize));
        System.out.println(String.format("Media Type: %s", Helpers.mediaType(filename)));

    } catch (IOException e){
        e.printStackTrace();
    }
}
 

/**
 * Retrieves {@link java.io.InputStream} of image by URI (image is located in the network).
 *
 * @param imageUri Image URI
 * @param extra    Auxiliary object which was passed to {@link com.nostra13.universalimageloader.core.DisplayImageOptions.Builder#extraForDownloader(Object)
 *                 DisplayImageOptions.extraForDownloader(Object)}; can be null
 * @return {@link java.io.InputStream} of image
 * @throws java.io.IOException if some I/O error occurs during network request or if no InputStream could be created for
 *                     URL.
 */
protected InputStream getStreamFromNetwork(String imageUri, Object extra) throws IOException {
	HttpURLConnection conn = createConnection(imageUri, extra);

	int redirectCount = 0;
	while (conn.getResponseCode() / 100 == 3 && redirectCount < MAX_REDIRECT_COUNT) {
		conn = createConnection(conn.getHeaderField("Location"), extra);
		redirectCount++;
	}

	InputStream imageStream;
	try {
		imageStream = conn.getInputStream();
	} catch (IOException e) {
		// Read all data to allow reuse connection (http://bit.ly/1ad35PY)
		IoUtils.readAndCloseStream(conn.getErrorStream());
		throw e;
	}
	return new ContentLengthInputStream(new BufferedInputStream(imageStream, BUFFER_SIZE), conn.getContentLength());
}
 

private void download(File file) {
	try {
		String fileURL = file.toString().replace(Constants.CONF_DIR + File.separator, Constants.CACHE_URL).replace(File.separator, "/");
		String description = getDescription(file);
		AppFrame.get().setDownloadProgress(description, 0);
		HttpURLConnection connection = (HttpURLConnection) new URL(fileURL).openConnection();
		try (BufferedInputStream in = new BufferedInputStream(connection.getInputStream());
			 FileOutputStream fileOutputStream = new FileOutputStream(file)) {
			int filesize = connection.getContentLength();
			byte[] dataBuffer = new byte[1024];
			int bytesRead;
			int totalRead = 0;
			while ((bytesRead = in.read(dataBuffer, 0, 1024)) != -1) {
				totalRead += bytesRead;
				fileOutputStream.write(dataBuffer, 0, bytesRead);
				AppFrame.get().setDownloadProgress(description, (float) (totalRead * 100 / filesize));
			}
			AppFrame.get().setDownloadProgress(description, 100.0f);
		} catch (IOException e) {
			e.printStackTrace();
		}
		connection.disconnect();
	} catch (Exception a) {
		a.printStackTrace();
	}
}
 

private void parseHttpResponse(HttpURLConnection httpConnection, boolean isAcceptRanges)
        throws DownloadException {

    final long length;
    String contentLength = httpConnection.getHeaderField("Content-Length");
    if (TextUtils.isEmpty(contentLength) || contentLength.equals("0") || contentLength
            .equals("-1")) {
        length = httpConnection.getContentLength();
    } else {
        length = Long.parseLong(contentLength);
    }

    if (length <= 0) {
        throw new DownloadException(DownloadException.EXCEPTION_FILE_SIZE_ZERO, "length <= 0");
    }

    checkIfPause();

    onGetFileInfoListener.onSuccess(length, isAcceptRanges);
}
 

protected InputStream getStreamFromNetwork(String s, Object obj)
{
    HttpURLConnection httpurlconnection = createConnection(s, obj);
    for (int i = 0; httpurlconnection.getResponseCode() / 100 == 3 && i < 5; i++)
    {
        httpurlconnection = createConnection(httpurlconnection.getHeaderField("Location"), obj);
    }

    InputStream inputstream;
    try
    {
        inputstream = httpurlconnection.getInputStream();
    }
    catch (IOException ioexception)
    {
        IoUtils.readAndCloseStream(httpurlconnection.getErrorStream());
        throw ioexception;
    }
    return new ContentLengthInputStream(new BufferedInputStream(inputstream, 32768), httpurlconnection.getContentLength());
}
 

protected InputStream getStreamFromNetwork(String imageUri, Object extra) throws IOException {
    HttpURLConnection conn = createConnection(imageUri, extra);
    int redirectCount = 0;
    while (conn.getResponseCode() / 100 == 3 && redirectCount < 5) {
        conn = createConnection(conn.getHeaderField(HttpRequest.HEADER_LOCATION), extra);
        redirectCount++;
    }
    try {
        return new ContentLengthInputStream(new BufferedInputStream(conn.getInputStream(), 32768), conn.getContentLength());
    } catch (IOException e) {
        IoUtils.readAndCloseStream(conn.getErrorStream());
        throw e;
    }
}
 

public static String httpPostWithJSON(String postUrl, String json) {
        try {
            URL url = new URL(postUrl);// 创建连接
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setDoOutput(true);
            connection.setDoInput(true);
            connection.setUseCaches(false);
            connection.setInstanceFollowRedirects(true);
            connection.setRequestMethod("POST"); // 设置请求方式
            connection.setRequestProperty("Accept", "application/json"); // 设置接收数据的格式
            connection.setRequestProperty("Content-Type", "application/json"); // 设置发送数据的格式
            connection.connect();
            OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "UTF-8"); // utf-8编码
            out.append(json);
            out.flush();
            out.close();
            // 读取响应
            int length = (int) connection.getContentLength();// 获取长度
            InputStream is = connection.getInputStream();
            String result = IoConvertUtils.stream2String(is);
            return result;
//            if (length != -1) {
//                byte[] data = new byte[length];
//                byte[] temp = new byte[512];
//                int readLen = 0;
//                int destPos = 0;
//                while ((readLen = is.read(temp)) > 0) {
//                    System.arraycopy(temp, 0, data, destPos, readLen);
//                    destPos += readLen;
//                }
//                String result = new String(data, "UTF-8"); // utf-8编码
//                // System.out.println(result);
//                return result;
//            }

        } catch (IOException e) {
            e.printStackTrace();
        }
        return "error"; // 自定义错误信息
    }
 

/**
 * 내부적으로 이용되는 download 메서드<br>
 * String 형식의 이미지 주소를 받아서 다운로드<br>
 * <i>추후 HttpComponent로 변경 예정</i>
 *
 * @return 다운로드한 이미지의 byte size
 * @throws Exception
 */
private int download() throws Exception {
	HttpURLConnection conn = (HttpURLConnection) new URL(imgURL).openConnection();
	conn.setRequestMethod("GET");
	conn.setConnectTimeout(MAX_WAIT_TIME); // init 연결 타임아웃
	conn.setConnectTimeout(MAX_WAIT_TIME << 1); // data read 타임아웃
	conn.setRequestProperty("charset", "utf-8");
	conn.setRequestProperty("User-Agent", UserAgent.getUserAgent());
	//conn.setRequestProperty("Accept-Encoding", "gzip");
	conn.setRequestProperty("Host", host);
	conn.setRequestProperty("Referer", referer);

	int imageSize = conn.getContentLength(); // byte size
	InputStream inputStream = conn.getInputStream(); //속도저하의 원인

	String savePath = String.format("%s%03d%s", path, pageNum, getExt(imgURL, ".jpg"));

	BufferedInputStream bis = new BufferedInputStream(inputStream, BUF_SIZE);
	BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(savePath), BUF_SIZE);

	IOUtils.copyLarge(bis, bos);

	bos.close();
	bis.close();

	return imageSize;
}
 

private void prepareDownload() {
    this.targetStatus = DOWNLOAD_STATUS_START;
    this.threads = new DownloadThread[config.getThreadNum()];
    if (!this.config.getSaveDir().exists()) {
        if (!this.config.getSaveDir().mkdirs()) {
            LogUtils.d(TAG, "mkdirs download directory failed.");
            return;
        }
    }

    HttpURLConnection urlConn = openConnection(config.getDownloadUrl());
    try {
        if (urlConn.getResponseCode() == 200) {
            this.fileSize = urlConn.getContentLength();
            if (this.fileSize <= 0) {
                throw new RuntimeException("unKnow file size");
            }
            onDownloadTotalSize(this.fileSize);
        } else {
            throw new RuntimeException("server no response.");
        }
    } catch (IOException e) {
        e.printStackTrace();
        LogUtils.d(TAG, "open HttpURLConnection failed.");
        Toast.makeText(mContext, "open url failed.", Toast.LENGTH_SHORT).show();
        onDownloadFailed();
        return;
    }

    String fileName = this.config.getFileName();
    if (TextUtils.isEmpty(fileName)) {
        fileName = getFileName(urlConn, config.getDownloadUrl());
    }
    this.saveFile = new File(this.config.getSaveDir(), fileName);
    LogUtils.d(TAG, "saveFile.path = " + this.saveFile.getPath());
    this.data = new ArrayList<>(downloadDBHelper.query(config.getDownloadUrl()));
    if (this.data.size() == this.threads.length) {
        for (ThreadData threadData : this.data) {
            this.downloadSize += threadData.getDownloadLength();
        }
        LogUtils.d(TAG, "history download size = " + this.downloadSize);
    } else {
        this.data.clear();
        for (int i = 0; i < this.threads.length; i++) {
            this.data.add(new ThreadData(i, this.fileSize));//Initialize each thread has downloaded data length is zero
        }
        this.downloadSize = 0;
        this.downloadDBHelper.save(this.config.getDownloadUrl(), this.data);//first save
    }
    //Calculating the maximum length of data download each thread
    this.block = (this.fileSize % this.threads.length) == 0 ?
            this.fileSize / this.threads.length :
            this.fileSize / this.threads.length + 1;
    executeDownload();
}
 

protected List<String> doInBackground(String... args) {
    String fileName = GlobalConstant.SAVED_FILE_NAME + "-" + System.currentTimeMillis() + ".mp4";

    File file = new File(Environment.getExternalStorageDirectory().toString() + File.separator + GlobalConstant.SAVED_FILE_NAME);
    if (!file.exists()) file.mkdirs();


    Downloads downloads = new Downloads();
    downloads.setUser_id("");
    downloads.setPath(file.getAbsolutePath() + "/" + fileName);
    downloads.setUsername("");
    downloads.setType(1);
    downloads.setFilename(fileName);
    DataObjectRepositry.dataObjectRepositry.addDownloadedData(downloads);

    newVid = new File(file, fileName);
    if (!newVid.exists())
        try {
            newVid.createNewFile();
        } catch (IOException e) {
            e.printStackTrace();
        }

    try {
        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
        connection.connect();
        int lenghtOfFile = connection.getContentLength();
        FileOutputStream out = new FileOutputStream(newVid);
        InputStream is = connection.getInputStream();
        byte[] buffer = new byte[1024];
        long total = 0;
        while (true) {
            int len1 = is.read(buffer);
            total += (long) len1;
            publishProgress(new Integer[]{Integer.valueOf((int) ((100 * total) / ((long) lenghtOfFile)))});
            if (len1 == -1) {
                break;
            }
            out.write(buffer, 0, len1);
        }
        out.close();
        is.close();
    } catch (Exception e2) {
        e2.printStackTrace();
    }
    return null;
}
 

private void requestNet() {
	// (1). �����ͷ�������Դ�ļ�һ����С�Ŀ��ļ�
	try {
		// 1. ��ʼ��Url
		URL url = new URL(path);
		// 2. ͨ��Url��ȡHttp����
		HttpURLConnection conn = (HttpURLConnection) url.openConnection();
		// 3. �����������������ʽ
		conn.setRequestMethod("GET");
		// 4. ��ȡ������ 200:�ɹ� 3xxx���� 4xxx�ͻ��˴��� 500����������
		int code = conn.getResponseCode();
		// 5. �õ��ӷ������˷��ص���Դ�ļ��Ĵ�С
		int fileLength = conn.getContentLength();
		if (code == 200) {
			System.out.println("��������Դ�ļ��Ĵ�С��" + fileLength);
			RandomAccessFile raf = new RandomAccessFile(getFileName(), "rw");
			// ��Ҫ�����ļ��Ĵ�С
			raf.setLength(fileLength);
			raf.close();
		}

		// (2).��������߳�����
		// ÿ������Ĵ�С
		int blockSize = fileLength / threadCount;

		for (int threadId = 0; threadId < threadCount; threadId++) {
			int startIndex = threadId * blockSize;
			int endIndex = (threadId + 1) * blockSize;
			// ���һ���߳�
			if (threadId == threadCount - 1) {
				// �����ļ�������λ��
				endIndex = fileLength - 1;
			}
			// ��ʼ�߳�
			new DownLoadThread(startIndex, endIndex, threadId).start();
		}

	} catch (Exception e) {
		e.printStackTrace();
	}
}
 

@Override
protected Boolean doInBackground(String... params) {
	JUtils.Log("StartDownLoadTask");
	path = params[1];
	name = params[2];
	boolean finish = false;
	try{
		URL url = new URL(params[0]);
		HttpURLConnection conn = (HttpURLConnection) url.openConnection();
		conn.setRequestMethod("GET");
		conn.setConnectTimeout(5000);
		if(conn.getResponseCode() == 200) {
			File f = new File(params[1]);
			if (!f.isDirectory()) {
				f.mkdirs();
			}
			InputStream is = conn.getInputStream();
			int length = conn.getContentLength();
			File file = new File(path+name);
			FileOutputStream fos = new FileOutputStream(file);
			int count = 0;
			byte buf[] = new byte[1024];
			int progress = 0;
			int progress_pre = 0;
			do {
				int numread = is.read(buf);
				count += numread;
				progress = (int) (((float) count / length) * 100);
				if(progress != progress_pre){
					JUtils.Log("progress"+progress);
					publishProgress(progress);
					progress_pre = progress;
				}
				
				if (numread <= 0) {				
					break;
				}
				fos.write(buf, 0, numread);
			} while (!cancelUpdate);
			fos.flush();
			fos.close();
			is.close();
			finish = true;
		}
	} catch (Exception e) {
		JUtils.Log(e.getLocalizedMessage());
		finish = false;
	}				
	return finish;
}
 

/**
 * Read headers from the HTTP response and store them into local state.
 */
private void readResponseHeaders(State state, InnerState innerState, HttpURLConnection response)
        throws StopRequest {
    String value = response.getHeaderField("Content-Disposition");
    if (value != null) {
        innerState.mHeaderContentDisposition = value;
    }
    value = response.getHeaderField("Content-Location");
    if (value != null) {
        innerState.mHeaderContentLocation = value;
    }
    value = response.getHeaderField("ETag");
    if (value != null) {
        innerState.mHeaderETag = value;
    }
    String headerTransferEncoding = null;
    value = response.getHeaderField("Transfer-Encoding");
    if (value != null) {
        headerTransferEncoding = value;
    }
    String headerContentType = null;
    value = response.getHeaderField("Content-Type");
    if (value != null) {
        headerContentType = value;
        if (!headerContentType.equals("application/vnd.android.obb")) {
            throw new StopRequest(DownloaderService.STATUS_FILE_DELIVERED_INCORRECTLY,
                    "file delivered with incorrect Mime type");
        }
    }

    if (headerTransferEncoding == null) {
        long contentLength = response.getContentLength();
        if (value != null) {
            // this is always set from Market
            if (contentLength != -1 && contentLength != mInfo.mTotalBytes) {
                // we're most likely on a bad wifi connection -- we should
                // probably
                // also look at the mime type --- but the size mismatch is
                // enough
                // to tell us that something is wrong here
                Log.e(Constants.TAG, "Incorrect file size delivered.");
            } else {
                innerState.mHeaderContentLength = Long.toString(contentLength);
            }
        }
    } else {
        // Ignore content-length with transfer-encoding - 2616 4.4 3
        if (Constants.LOGVV) {
            Log.v(Constants.TAG,
                    "ignoring content-length because of xfer-encoding");
        }
    }
    if (Constants.LOGVV) {
        Log.v(Constants.TAG, "Content-Disposition: " +
                innerState.mHeaderContentDisposition);
        Log.v(Constants.TAG, "Content-Length: " + innerState.mHeaderContentLength);
        Log.v(Constants.TAG, "Content-Location: " + innerState.mHeaderContentLocation);
        Log.v(Constants.TAG, "ETag: " + innerState.mHeaderETag);
        Log.v(Constants.TAG, "Transfer-Encoding: " + headerTransferEncoding);
    }

    boolean noSizeInfo = innerState.mHeaderContentLength == null
            && (headerTransferEncoding == null
            || !headerTransferEncoding.equalsIgnoreCase("chunked"));
    if (noSizeInfo) {
        throw new StopRequest(DownloaderService.STATUS_HTTP_DATA_ERROR,
                "can't know size of download, giving up");
    }
}
 

/**
 * <p>최신버전 다운로드 메서드.
 * <p>최신버전 확인 메서드 내부에서 불러지는 용도로만 사용하게 제한.
 * <p>사용자의 OS 값에 따라서 윈도우 / 그 이외(맥, 리눅스) 버전을 다운로드
 * @param in 키보드 입력용 버퍼리더 객체
 */
private static void downloadLatestVersion(final BufferedReader in){
	try{
		final int MB = 1048576;
		final int BUF_SIZE = MB * 10;
		
		String select, fileName = null, fileURL = null;
		boolean isCorrectlySelected = false;
		
		while(!isCorrectlySelected){ //다운로드 받거나(y) 취소(n)를 제대로 선택할 때 까지 반복.
			System.out.printf("최신 버전(%s)을 다운받으시겠습니까? (Y/n): ", LATEST_VERSION);
			select = in.readLine();
			
			if(select.equalsIgnoreCase("y")){
				isCorrectlySelected = true;
				makeDir(); //Marumaru폴더 생성
				
				/* OS가 윈도우면, 파일 이름 = MMdownloader_0.5.0.0_Windows.zip */
				if(OS_NAME.contains("Windows")){
					fileName = LATEST_WINDOWS.substring(LATEST_WINDOWS.lastIndexOf("/")+1);
					fileURL = LATEST_WINDOWS;
				}
				/* OS가 윈도우 이외면 파일 이름 = MMdownloader_0.5.0.0_Mac,Linux.zip */
				else{
					fileName = LATEST_OTHERS.substring(LATEST_OTHERS.lastIndexOf("/")+1);
					fileURL = LATEST_OTHERS;
				}
				
				BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(DEFAULT_PATH+fileSeparator+fileName), BUF_SIZE);
				HttpURLConnection conn = (HttpURLConnection)new URL(fileURL).openConnection();
				conn.setConnectTimeout(30000); // 타임아웃 30초 
				conn.setReadTimeout(60000); // 타임아웃 1분
				
				BufferedInputStream bis = new BufferedInputStream(conn.getInputStream(), BUF_SIZE);
				
				final double MB_SIZE = (double) conn.getContentLength() / MB;	// 전체 파일 사이즈의 MB 값
				int readByte = 0;	// 읽은 바이트 값
				int accum = 0;		// 누적 바이트 길이
				int count = 0;		// MB 를 넘기 전 까지 읽어들인 바이트 길이
				
				System.out.println("다운로드중 ...");
				
				while((readByte = bis.read()) != -1){
					bos.write(readByte);
					
					/* MB 별로 다운로드 진행 상황을 출력함 */
					if(++count >= MB) {
						accum += count;
						count = 0;
						System.out.printf("%,3.2f MB / %,3.2f MB 완료!\n", (double) accum / MB, MB_SIZE);
					}
				}
				bos.close();
				bis.close();
				
				System.out.printf("%,3.2f MB / %,3.2f MB 완료!\n", (double) (accum + count) / MB, MB_SIZE);
				System.out.println("완료! (위치: "+DEFAULT_PATH+fileSeparator+fileName+")");
			}
			else if(select.equalsIgnoreCase("n")){
				isCorrectlySelected = true;
				System.out.println("업데이트가 취소되었습니다.");
			}
		}
	}
	catch(Exception e){
		ErrorHandling.saveErrLog("최신버전 다운로드 에러", "", e);
	}
}