java web 记数据库备份与恢复bug

数据库备份是没有问题的，而且在数据了较大的情况下速度也不是特别慢。具体代码：

public JsonView dobackup() throws Exception {

		SimpleDateFormat sDateFormat = new SimpleDateFormat("yyyyMMddhhmmss");
		String date = sDateFormat.format(new java.util.Date());
		if (exportDatabaseTool("localhost", "msql用户名", "mysql密码",
				"C:/BACKUPDATABASE", "数据库名" + date + ".sql",
				"flight_health")) {
			System.out.println("数据库备份成功！！！");
		} else {
			System.out.println("数据库备份失败！！！");
		}
		return new JsonView();
	}

	public static boolean exportDatabaseTool(String hostIP, String userName,
			String password, String savePath, String fileName,
			String databaseName) throws Exception {
		File saveFile = new File(savePath);
		if (!saveFile.exists()) {// 如果目录不存在
			saveFile.mkdirs();// 创建文件夹
		}
		if (!savePath.endsWith(File.separator)) {
			savePath = savePath + File.separator;
		}

		PrintWriter printWriter = null;
		BufferedReader bufferedReader = null;
		try {
			printWriter = new PrintWriter(new OutputStreamWriter(
					new FileOutputStream(savePath + fileName), "utf8"));
			Process process = Runtime.getRuntime().exec(
					" mysqldump -h" + hostIP + " -u" + userName + " -p"
							+ password + " --set-charset=UTF8 " + databaseName);
			InputStreamReader inputStreamReader = new InputStreamReader(
					process.getInputStream(), "utf8");
			bufferedReader = new BufferedReader(inputStreamReader);
			String line;
			while ((line = bufferedReader.readLine()) != null) {
				printWriter.println(line);
			}
			printWriter.flush();
			if (process.waitFor() == 0) {// 0 表示线程正常终止。
				return true;
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (bufferedReader != null) {
					bufferedReader.close();
				}
				if (printWriter != null) {
					printWriter.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return false;
	}

数据库恢复，问题比较大，之前是使用和数据库备份类似的恢复方式，虽然最后会返回数据库恢复成功！！但是实际并没有正确执行代码，参考了网上很多的相似方法都不行，都会报管道错误问题问题或者是不报问题也不执行代码     之后参考 大神版本

public void recover(MultipartFile file) throws Exception {
		Map detailMap = new HashMap();
		String filename = file.getOriginalFilename();
	    String filePath = request.getSession().getServletContext().getRealPath("/") + "downloadfile/"  
                + file.getOriginalFilename();  //创建文件
	    file.transferTo(new File(filePath));    // 转存文件    
	    Runtime rt = Runtime.getRuntime();
	    Process pro = rt.exec(getCommand(filePath));
	    BufferedReader br = new BufferedReader(new InputStreamReader(pro.getErrorStream()));
	    String errorLine = null;
	    while ((errorLine = br.readLine()) != null) {
	        System.out.println(errorLine);
	    }
	    br.close();
	    int result = pro.waitFor();
	    if (result != 0) {
	        throw new Exception("数据库恢复失败！ ");
	    }
	}
	private String[] getCommand(String filePath) {
	    String[] cmd = new String[3];
	    String os = System.getProperties().getProperty("os.name");
	    if (os.startsWith("Win")) {
	        cmd[0] = "cmd.exe";
	        cmd[1] = "/c";
	    } else {
	        cmd[0] = "/bin/sh";
	        cmd[1] = "-c";
	    }
	    StringBuilder arg = new StringBuilder();
	    arg.append("mysql ");
	    arg.append("-uroot ");
	    arg.append("-proot  数据库名");   //之前没有数据库名会报错说 找不到该数据库
	    arg.append(" < ");
	    arg.append(getFile(filePath));
	    cmd[2] = arg.toString();
	    return cmd;
	}
	private String getFile(String filePath) {
	    File dir = new File(filePath);
	    return dir.getAbsolutePath().toString();
	}