java http下载文件/上传文件保存

private boolean downloadFileString httpUrl, String savePath) {
        int byteread = 0;
        try {
            URL url = new URLhttpUrl);
            URLConnection conn = url.openConnection);
            InputStream inStream = conn.getInputStream);
            FileOutputStream fs = new FileOutputStreamsavePath);
            byte[] buffer = new byte[1204];
            while byteread = inStream.readbuffer)) != -1) {
                fs.writebuffer, 0, byteread);
            }
            System.out.printlnsavePath+" download finished!");
            return true;
        } catch MalformedURLException e) {
            e.printStackTrace);
            return false;
        } catch IOException e) {
            e.printStackTrace);
            return false;
        }
    }

 上传文件保存在服务器：

private String saveFileMultipartFile file) {
		try {
			iffile != null && !file.isEmpty)) {
				
				String filePath = "保存至服务器的地址"
				File fp = new Filenew FilefilePath).getParent));
				if!fp.exists)){
					fp.mkdirs);
				}
				DataOutputStream out = new DataOutputStreamnew FileOutputStreamfilePath));
				InputStream is = null;
				try {
					is = file.getInputStream);
					byte[] b=new byte[is.available)];
					is.readb);
					out.writeb);
					return filePath ;
				} catch Exception e) {
					throw new RuntimeExceptione);
				} finally {
					if is != null) {
						is.close);
					}
					if out != null) {
						out.close);
					}
				}
			}
		} catch Exception e) {
			throw new RuntimeExceptione);
		}
		return null;
	}