A445020593的专栏

import java.io.File; import java.io.FileInputStream; import java.io.PrintWriter; import java.util.ArrayList; import java.util.List;public class ProjectCharsetChange {public static void main(String[

import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date;/** * @package :com.base.util * @memo : * @fileName:DateUtil.java @class :D

import java.util.regex.Matcher; import java.util.regex.Pattern;/** * 正则校验 * @author yangzuojie * http://www.cnblogs.com/zxin/archive/2013/01/26/2877765.html#rd */ public class RegexpUtil {

import java.util.Random;/** * 邀请码生成器，算法原理： * 1) 获取id: 1127738 * 2) 使用自定义进制转为：gpm6 * 3) 转为字符串，并在后面加’o’字符：gpm6o * 4）在后面随机产生若干个随机数字字符：gpm6o7 * 转为自定义进制后就不会出现o这个字符，然后在后面加个’o’，这样就能确定唯一性。最后在后面

import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.image.BufferedImage; import java.io.IOException; import java.util.Random;import javax.imageio.ImageIO; impor

import java.math.BigDecimal;public class ExcelIRRUtil { public static double irr(double[] income) { return irr(income, 0.1D); }public static double irr(double[] values, double guess)

import com.alibaba.dubbo.common.utils.StringUtils;public class EmojiFilter {/** * 检测是否有emoji字符 * @param source * @return 一旦含有就抛出 */public static boolean containsEmoji(String source) { if (Stri

import java.security.*;import javax.crypto.*;/** * DES加密解密工具 * @description DES加密解密工具 * @date 2016－1-17 * @version 1.0 */ public class DESSecurityUtil { private static String strDefaultKe

public boolean isCptkFileExist(String productCodeM){String rootPath = System.getProperty("webapp.root");String cptkFilePath = rootPath + "/cptk/" + productCodeM + ".html";return new File(c

/* *objectToMap */ public static Map