SpringBoot+JPA+WebMagic

package com.ezio.utils; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.math.BigDecimal; import java.nio.channels.FileChannel; import java.text.DateFormat; import java.text.DecimalFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Collection; import java.util.Date; import java.util.GregorianCalendar; import java.util.List; import java.util.Map; import java.util.Properties; import org.apache.commons.io.FileUtils; import org.springframework.web.multipart.MultipartFile; public class CommonUtil { /** * 判断对象是否Empty(null或元素为0)<br> * 实用于对如下对象做判断:String Collection及其子类 Map及其子类 * * @param pObj * 待检查对象 * @return boolean 返回的布尔值 */ @SuppressWarnings("rawtypes") public static boolean isEmpty(Object pObj) { if (pObj == null) return true; if (pObj.equals("")) return true; if (pObj instanceof String) { if (((String) pObj).length() == 0) { return true; } } else if (pObj instanceof Collection) { if (((Collection) pObj).size() == 0) { return true; } } else if (pObj instanceof Map) { if (((Map) pObj).size() == 0) { return true; } } return false; } /** * 判断对象是否为NotEmpty(!null或元素>0)<br> * 实用于对如下对象做判断:String Collection及其子类 Map及其子类 * * @param pObj * 待检查对象 * @return boolean 返回的布尔值 */ @SuppressWarnings("rawtypes") public static boolean isNotEmpty(Object pObj) { if (pObj == null) return false; if (pObj.equals("")) return false; if (pObj instanceof String) { if (((String) pObj).length() == 0) { return false; } } else if (pObj instanceof Collection) { if (((Collection) pObj).size() == 0) { return false; } } else if (pObj instanceof Map) { if (((Map) pObj).size() == 0) { return false; } } return true; } /** * 数据格式化. * * @param pattern * the pattern * @param i * the i * @return the string */ public static String codeFormat(String pattern, Object value) { DecimalFormat df = new DecimalFormat(pattern); return df.format(value); } /** * 格式化时间. * * @param date * the date * @return the string */ public static String fomatDate(String date) { if (isNotEmpty(date)) { return date.substring(0, 4) + "-" + date.substring(4, 6) + "-" + date.substring(6, 8); } return null; } /** * 格式化时间. * * @param date * the date * @return the string */ public static String fomatLongDate(String date) { if (isNotEmpty(date)) { return date.substring(0, 4) + "-" + date.substring(4, 6) + "-" + date.substring(6, 8) + " " + date.substring(8, 10) + ":" + date.substring(10, 12) + ":" + date.substring(12, 14); } return null; } /** * 格式化时间. * * @param date * the date * @return the string */ public static String fomatDateTime2String(String date) { if (isNotEmpty(date)) { return date.replace("-", "").replace("T", "").replace(":", "") .replace(" ", ""); } return null; } /** * 将时间字符串格式化成一个日期(java.util.Date) * * @param dateStr * 要格式化的日期字符串，如"2014-06-15 12:30:12" * @param formatStr * 格式化模板，如"yyyy-MM-dd HH:mm:ss" * @return the string */ public static Date formatDateString2Date(String dateStr, String formatStr) { DateFormat dateFormat = new SimpleDateFormat(formatStr); Date date = null; try { date = dateFormat.parse(dateStr); } catch (Exception e) { e.printStackTrace(); } return date; } /** * 将时间字符串格式化成一个日期(java.util.Date) * * @param dateStr * 要格式化的日期字符串，如"2014-06-15 12:30:12" * @param formatStr * 格式化模板，如"yyyy-MM-dd HH:mm:ss" * @return the string */ public static String formatDate2String(Date date, String formatStr) { DateFormat dateFormat = new SimpleDateFormat(formatStr); String result = null; try { result = dateFormat.format(date); } catch (Exception e) { e.printStackTrace(); } return result; } /** * 将一个毫秒数时间转换为相应的时间格式 * * @param longSecond * @return */ public static String formateDateLongToString(long longSecond) { GregorianCalendar gc = new GregorianCalendar(); gc.setTimeInMillis(longSecond); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); return format.format(gc.getTime()); } /** * 格式化金额. * * @param value * the value * @return the string */ public static String formatCurrency2String(Long value) { if (value == null || "0".equals(String.valueOf(value))) { return "0.00"; } DecimalFormat df = new DecimalFormat("0.00"); return df.format(value / 100.00); } /** * 格式化金额. * * @param priceFormat * the price format * @return the long */ public static Long formatCurrency2Long(String priceFormat) { BigDecimal bg = new BigDecimal(priceFormat); Long price = bg.multiply(new BigDecimal(100)).longValue(); return price; } /** * 获取当前时间. * * @param currentDate * the current date * @return * @throws */ public static String getToDayStr() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return sdf.format(new Date()); } /** * 获取当前时间当作文件名称 * * @return */ public static String getToDayStrAsFileName() { SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS"); return sdf.format(new Date()); } public static Date getToDay() throws ParseException { // SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // Date date = sdf.parse(String.valueOf(System.currentTimeMillis())); return new Date(); } /** * 获取下一天. * * @param currentDate * the current date * @return the next date str * @throws ParseException * the parse exception */ public static String getNextDateStr(String currentDate) throws ParseException { SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd"); Date date = sdf.parse(currentDate); Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.DATE, 1); String nextDate = sdf.format(calendar.getTime()); return nextDate; } /** * 获取上一天. * * @param currentDate * the current date * @return the next date str * @throws ParseException * the parse exception */ public static String getYesterdayStr(String currentDate) throws ParseException { SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd"); Date date = sdf.parse(currentDate); Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.DATE, -1); String nextDate = sdf.format(calendar.getTime()); return nextDate; } /** * 根据日期获取星期 * * @param strdate * @return */ public static String getWeekDayByDate(String strdate) { final String dayNames[] = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; SimpleDateFormat sdfInput = new SimpleDateFormat("yyyy-MM-dd"); Calendar calendar = Calendar.getInstance(); Date date = new Date(); tr