常用校验

      /**
	  * 验证邮箱
	  * @param email
	  * @return
	  */
	 public static boolean checkEmail(String email){
	  boolean flag = false;
	  try{
	    String check = "^([a-z0-9A-Z]+[-|_|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A- 
        Z]+)?\\.)+[a-zA-Z]{2,}$";
	    Pattern regex = Pattern.compile(check);
	    Matcher matcher = regex.matcher(email);
	    flag = matcher.matches();
	   }catch(Exception e){
	    flag = false;
	   }
	  return flag;
	 }


	
	 /**
	  * 验证手机号码
	  * @return
	  */
	 public static boolean checkMobileNumber(String mobileNumber){
	  boolean flag = false;
	  try{
	    Pattern regex = Pattern.compile("^(((13[0-9])|(15([0-3]|[5-9]))|(18[0,5-9]))\\d{8})|(0\\d{2}-\\d{8})|(0\\d{3}-\\d{7})$");
	    Matcher matcher = regex.matcher(mobileNumber);
	    flag = matcher.matches();
	   }catch(Exception e){
	    flag = false;
	   }
	  return flag;
	 }



	/**
	 * 随机生成六位数验证码 
	 * @return
	 */
	public static int getRandomNum(){
		 Random r = new Random();
		 return r.nextInt(900000)+100000;//(Math.random()*(999999-100000)+100000)
	}
	
	
	
	/**
	 * 写txt里的单行内容
	 * @param content  写入的内容
	 */
	public static void writeFile(String fileP,String content){
		String filePath = String.valueOf(Thread.currentThread().getContextClassLoader().getResource(""))+"../../";	//项目路径
		filePath = (filePath.trim() + fileP.trim()).substring(6).trim();
		if(filePath.indexOf(":") != 1){
			filePath = File.separator + filePath;
		}
		try {
	        OutputStreamWriter write = new OutputStreamWriter(new FileOutputStream(filePath),"utf-8");      
	        BufferedWriter writer=new BufferedWriter(write);          
	        writer.write(content);      
	        writer.close(); 

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

	
	 
	/**
	 * 读取txt里的单行内容
	 */
	public static String readTxtFile(String fileP) {
		try {
			
			String filePath = String.valueOf(Thread.currentThread().getContextClassLoader().getResource(""));	//项目路径
			filePath = filePath.replaceAll("file:/", "");
			filePath = filePath.replaceAll("%20", " ");
			filePath = filePath.trim() + fileP.trim();
			if(filePath.indexOf(":") != 1){
				filePath = File.separator + filePath;
			}
			String encoding = "utf-8";
			File file = new File(filePath);
			if (file.isFile() && file.exists()) { 		// 判断文件是否存在
				InputStreamReader read = new InputStreamReader(
				new FileInputStream(file), encoding);	// 考虑到编码格式
				BufferedReader bufferedReader = new BufferedReader(read);
				String lineTxt = null;
				while ((lineTxt = bufferedReader.readLine()) != null) {
					return lineTxt;
				}
				read.close();
			}else{
				System.out.println("找不到指定的文件,查看此路径是否正确:"+filePath);
			}
		} catch (Exception e) {
			System.out.println("读取文件内容出错");
		}
		return "";
	}


	/**
	 * 特殊字符处理
	 * @author anss
	 * @date 2018-12-13
	 * @param keyword
	 * @return
	 */
	public static String escapeExprSpecialWord(String keyword) {
		if (StringUtils.isNotEmpty(keyword)) {
			String[] fbsArr = { "\\","$","(",")","*","+",".","[", "]","?","^","{","}","|","'","%","_" };
			for (String key : fbsArr) {
				if (keyword.contains(key)) {
					keyword = keyword.replace(key, "\\" + key);
				}
			}
		}
		return keyword;
	}