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

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

import java.io.*;

/**
 * 文件处理
 */

wangshuai1992

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;

wangshuai1992

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

/**
 * 正则工具类
 */
public class RegexExtUtil {

    private static Pattern PATTERN_TEL = Pattern.compile("([0-9]+(\\-){0,1})+[0-9]$");

wangshuai1992

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 * RequestUtil

wangshuai1992

public class TreeNode {
    int val;
    TreeNode left;
    TreeNode right;

    TreeNode(int x) {
        val = x;
    }

    /**

wangshuai1992

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.parser.Feature;
import de.odysseus.staxon.json.JsonXMLConfig;
import de.odysseus.staxon.json.JsonXMLConfigBuilder;
import de.odysseus.staxon.json.JsonXMLInputFactory;
import de.odysseus.staxon.json.JsonXMLOutputFactory;
import de.odysseus.staxon.xml.util.PrettyXMLEventWriter;

import javax.xml.stream.XMLEventReader;