文件流备忘

简述：

常用文件流格式，供备忘

			urlDownload = new URL("http://localhost:8080/Server/fetch?id=" + id);
			HttpURLConnection connection = (HttpURLConnection)urlDownload.openConnection();
			connection.connect();
			
			InputStream is = connection.getInputStream();
			String filePath = "E:\\temp";
			if( !new File(filePath).exists()){
				new File(filePath).mkdirs();
			}
			final File srcFile = new File(filePath + File.separatorChar 
					+ UUID.randomUUID().toString().replace("-", "") + ".jpg");
			FileOutputStream fos = new FileOutputStream(srcFile);
//			bufImg = ImageIO.read(is);
			byte[] bytes = new byte[1024];
			int len = 0;
			while((len = is.read(bytes)) != -1){
				fos.write(bytes);
			}
			fos.flush();
			fos.close();
			is.close();

		String filePath = "E:\\temp";
		if( !new File(filePath).exists()){
			new File(filePath).mkdirs();
		}
		final File srcFile = new File(filePath + File.separatorChar 
				+ UUID.randomUUID().toString().replace("-", "") + ".jpg");
		FileOutputStream fos;
		try {
			fos = new FileOutputStream(srcFile);
			fos.write(img_expected_0);
			fos.flush();
			fos.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}