wangshuai1992

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

import java.io.*;

/**
 * 文件处理
 */

wangshuai1992

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.*;
import java.security.SecureRandom;
import java.util.HashSet;
import java.util.Random;
import java.util.Set;
import java.util.regex.Matcher;

wangshuai1992

import org.apache.commons.lang.StringUtils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class CharUtil {

    private static final Pattern PATTERN_LETTER = Pattern.compile("[a-zA-Z]+");

    private CharUtil() {

wangshuai1992

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

wangshuai1992

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/**
 * 日期工具类
 *
 * @author wangshuai
 * @version V1.0
 * @date 2018-05-05 17:01