package net.oschina.app.util; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.TimeZone; import java.util.regex.Pattern; /** * 字符串操作工具包 * * @author liux (http://my.oschina.net/liux) * @version 1.0 * @created 2012-3-21 */ public class StringUtils { private final static Pattern emailer = Pattern .compile("\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*"); private final static Pattern IMG_URL = Pattern .compile(".*?(gif|jpeg|png|jpg|bmp)"); private final static Pattern URL = Pattern .compile("^(https|http)://.*?$(net|com|.com.cn|org|me|)"); private final static ThreadLocal<SimpleDateFormat> dateFormater = new ThreadLocal<SimpleDateFormat>() { @Override protected SimpleDateFormat initialValue() { return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); } }; private final static ThreadLocal<SimpleDateFormat> dateFormater2 = new ThreadLocal<SimpleDateFormat>() { @Override protected SimpleDateFormat initialValue() { return new SimpleDateFormat("yyyy-MM-dd"); } }; /** * 将字符串转位日期类型 * * @param sdate * @return */ public static Date toDate(String sdate) { return toDate(sdate, dateFormater.get()); } public static Date toDate(String sdate, SimpleDateFormat dateFormater) { try { return dateFormater.parse(sdate); } catch (ParseException e) { return null; } } public static String getDateString(Date date) { return dateFormater.get().format(date); } /** * 以友好的方式显示时间 * * @param sdate * @return */ public static String friendly_time(String sdate) { Date time = null; if (TimeZoneUtil.isInEasternEightZones()) time = toDate(sdate); else time = TimeZoneUtil.transformTime(toDate(sdate), TimeZone.getTimeZone("GMT+08"), TimeZone.getDefault()); if (time == null) { return "Unknown"; } String ftime = ""; Calendar cal = Calendar.getInstance(); // 判断是否是同一天 String curDate = dateFormater2.get().format(cal.getTime()); String paramDate = dateFormater2.get().format(time); if (curDate.equals(paramDate)) { int hour = (int) ((cal.getTimeInMillis() - time.getTime()) / 3600000); if (hour == 0) ftime = Math.max( (cal.getTimeInMillis() - time.getTime()) / 60000, 1) + "分钟前"; else ftime = hour + "小时前"; return ftime; } long lt = time.getTime() / 86400000; long ct = cal.getTimeInMillis() / 86400000; int days = (int) (ct - lt); if (days == 0) { int hour = (int) ((cal.getTimeInMillis() - time.getTime()) / 3600000); if (hour == 0) ftime = Math.max( (cal.getTimeInMillis() - time.getTime()) / 60000, 1) + "分钟前"; else ftime = hour + "小时前"; } else if (days == 1) { ftime = "昨天"; } else if (days == 2) { ftime = "前天 "; } else if (days > 2 && days < 31) { ftime = days + "天前"; } else if (days >= 31 && days <= 2 * 31) { ftime = "一个月前"; } else if (days > 2 * 31 && days <= 3 * 31) { ftime = "2个月前"; } else if (days > 3 * 31 && days <= 4 * 31) { ftime = "3个月前"; } else { ftime = dateFormater2.get().format(time); } return ftime; } public static String friendly_time2(String sdate) { String res = ""; if (isEmpty(sdate)) return ""; String[] weekDays = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; String currentData = StringUtils.getDataTime("MM-dd"); int currentDay = toInt(currentData.substring(3)); int currentMoth = toInt(currentData.substring(0, 2)); int sMoth = toInt(sdate.substring(5, 7)); int sDay = toInt(sdate.substring(8, 10)); int sYear = toInt(sdate.substring(0, 4)); Date dt = new Date(sYear, sMoth - 1, sDay - 1); if (sDay == currentDay && sMoth == currentMoth) { res = "今天 / " + weekDays[getWeekOfDate(new Date())]; } else if (sDay == currentDay + 1 && sMoth == currentMoth) { res = "昨天 / " + weekDays[(getWeekOfDate(new Date()) + 6) % 7]; } else { if (sMoth < 10) { res = "0"; } res += sMoth + "/"; if (sDay < 10) { res += "0"; } res += sDay + " / " + weekDays[getWeekOfDate(dt)]; } return res; } /** * 获取当前日期是星期几<br> * * @param dt * @return 当前日期是星期几 */ public static int getWeekOfDate(Date dt) { Calendar cal = Calendar.getInstance(); cal.setTime(dt); int w = cal.get(Calendar.DAY_OF_WEEK) - 1; if (w < 0) w = 0; return w; } /** * 判断给定字符串时间是否为今日 * * @param sdate * @return boolean */ public static boolean isToday(String sdate) { boolean b = false; Date time = toDate(sdate); Date today = new Date(); if (time != null) { String nowDate = dateFormater2.get().format(today); String timeDate = dateFormater2.get().format(time); if (nowDate.equals(timeDate)) { b = true; } } return b; } /** * 返回long类型的今天的日期 * * @return */ public static long getToday() { Calendar cal = Calendar.getInstance(); String curDate = dateFormater2.get().format(cal.getTime()); curDate = curDate.replace("-", ""); return Long.parseLong(curDate); } public static String getCurTimeStr() { Calendar cal = Calendar.getInstance(); String curDate = dateFormater.get().format(cal.getTime()); return curDate; } /*** * 计算两个时间差,返回的是的秒s * * @author 火蚁 2015-2-9 下午4:50:06 * * @return long * @param dete1 * @param date2 * @return */ public static long calDateDifferent(String dete1, String date2) { long diff = 0; Date d1 = null; Date d2 = null; try { d1 = dateFormater.get().parse(dete1); d2 = dateFormater.get().parse(date2); // 毫秒ms diff = d2.getTime() - d1.getTime(); } catch (Exception e) { e.printStackTrace(); } return diff / 1000; } /** * 判断给定字符串是否空白串。 空白串是指由空格、制表符、回车符、换行符组成的字符串 若输入字符串为null或空字符串,返回true * * @param input * @return boolean */ public static boolean isEmpty(String input) { if (input == null || "".equals(input)) return true; for (int i = 0; i < input.length(); i++) { char c = input.charAt(i); if (c != ' ' && c != '\t' && c != '\r' && c != '\n') { return false; } } return true; } /** * 判断是不是一个合法的电子邮件地址 * * @param email * @return */ public static boolean isEmail(String email) { if (email == null || email.trim().length() == 0) return false; return emailer.matcher(email).matches(); } /** * 判断一个url是否为图片url * * @param url * @return */ public static boolean isImgUrl(String url) { if (url == null || url.trim().length() == 0) return false; return IMG_URL.matcher(url).matches(); } /** * 判断是否为一个合法的url地址 * * @param str * @return */ public static boolean isUrl(String str) { if (str == null || str.trim().length() == 0) return false; return URL.matcher(str).matches(); } /** * 字符串转整数 * * @param str * @param defValue * @return */ public static int toInt(String str, int defValue) { try { return Integer.parseInt(str); } catch (Exception e) { } return defValue; } /** * 对象转整数 * * @param obj * @return 转换异常返回 0 */ public static int toInt(Object obj) { if (obj == null) return 0; return toInt(obj.toString(), 0); } /** * 对象转整数 * * @param obj * @return 转换异常返回 0 */ public static long toLong(String obj) { try { return Long.parseLong(obj); } catch (Exception e) { } return 0; } /** * 字符串转布尔值 * * @param b * @return 转换异常返回 false */ public static boolean toBool(String b) { try { return Boolean.parseBoolean(b); } catch (Exception e) { } return false; } public static String getString(String s) { return s == null ? "" : s; } /** * 将一个InputStream流转换成字符串 * * @param is * @return */ public static String toConvertString(InputStream is) { StringBuffer res = new StringBuffer(); InputStreamReader isr = new InputStreamReader(is); BufferedReader read = new BufferedReader(isr); try { String line; line = read.readLine(); while (line != null) { res.append(line + "<br>"); line = read.readLine(); } } catch (IOException e) { e.printStackTrace(); } finally { try { if (null != isr) { isr.close(); isr.close(); } if (null != read) { read.close(); read = null; } if (null != is) { is.close(); is = null; } } catch (IOException e) { } } return res.toString(); } /*** * 截取字符串 * * @param start * 从那里开始,0算起 * @param num * 截取多少个 * @param str * 截取的字符串 * @return */ public static String getSubString(int start, int num, String str) { if (str == null) { return ""; } int leng = str.length(); if (start < 0) { start = 0; } if (start > leng) { start = leng; } if (num < 0) { num = 1; } int end = start + num; if (end > leng) { end = leng; } return str.substring(start, end); } /** * 获取当前时间为每年第几周 * * @return */ public static int getWeekOfYear() { return getWeekOfYear(new Date()); } /** * 获取当前时间为每年第几周 * * @param date * @return */ public static int getWeekOfYear(Date date) { Calendar c = Calendar.getInstance(); c.setFirstDayOfWeek(Calendar.MONDAY); c.setTime(date); int week = c.get(Calendar.WEEK_OF_YEAR) - 1; week = week == 0 ? 52 : week; return week > 0 ? week : 1; } public static int[] getCurrentDate() { int[] dateBundle = new int[3]; String[] temp = getDataTime("yyyy-MM-dd").split("-"); for (int i = 0; i < 3; i++) { try { dateBundle[i] = Integer.parseInt(temp[i]); } catch (Exception e) { dateBundle[i] = 0; } } return dateBundle; } /** * 返回当前系统时间 */ public static String getDataTime(String format) { SimpleDateFormat df = new SimpleDateFormat(format); return df.format(new Date()); } }
相关推荐
commons-lang3-3.1 StringUtils字符串jar包 org.apache.commons.lang3.StringUtils的jar包
今天小编就为大家分享一篇关于StringUtils工具包中字符串非空判断isNotEmpty和isNotBlank的区别,小编觉得内容挺不错的,现在分享给大家,具有很好的参考价值,需要的朋友一起跟随小编来看看吧
StringUtils.Java包括了很全的字符串操作的方法。使用非常方便。
jar包中的StringUtils类用于操作字符串的各种判断和截取
字符串工具概要包含一些用于格式化和操作字符串的基本实用程序: StringUtils.format 的工作方式类似于 .Net 中的 String.Format。代码示例 s1 = StringUtils.format("The {0} is against the {1}.", "chair", "wall...
包含对象转list、获取两个日期之间的所有日期、获取两个日期之间的所有日期(小时)、获取两个日期之间的所有日期(分钟)、根据文件路径创建所有文件夹、删除ArrayList中重复元素,保持顺序、判断字符串是否包含...
String工具类,可用于常见字符串操作,如: isEmpty(String str) 判断字符串是否为空或长度为0 isBlank(String str) 判断字符串是否为空或长度为0 或由空格组成 utf8Encode(String str) 以utf-8格式编码 ...
自己写的任性谢谢如何使用go get github.com/sjsdfg/common-lang-in-go StringUtils IsEmpty(str字符串)布尔IsNotEmpty(字符串)布尔IsAllEmpty(list ... string)布尔IsAnyEmpty(list ... string)布尔...
* 从json数组中解析出java字符串数组 * @param jsonString * @return */ /** *//** * 从json数组中解析出javaLong型对象数组 * @param jsonString * @return */ /** *//** * 从json数组中解析出java ...
抓哟包含StringUtils:字符串工具类;DensityUtils :各种尺寸px等之间的转换;BaseAppUtils:获取手机基本信息;ImageUitls:图片格式的转换,保存等。免费额,欢迎使用。
StringUtils字符串操作 RandomUtils随机操作 ConvertDateUtils转换日期工具类 IdcardUtils身份证识别工具类 MoneyUtils钱处理工具类 日期时间转换 DateFormatUtils日期时间转换工具类 DateUtils日期转换工具类 ...
lang和lang3这两个包里有转换所需的工具类 org.jsoup jsoup 1.11.3 commons-lang commons-lang 2.6 org.apache.commons commons-lang3 3.4 第二步:直接使用即可: import org.apache.commons.lang....
字符串相关→StringUtils.java→Test 判断字符串是否为null或长度为0 isEmpty 判断字符串是否为null或全为空格 isSpace null转为长度为0的字符串 null2Length0 返回字符串长度 length 首字母大写 upperFirstLetter ...
可以过滤掉emoji表情等字符串,下载的亲们,请评论下,谢谢,里面有用到StringUtils工具类,如果没有的小伙伴可以来我的资源里面下载! !
StringUtils.java:字符串工具类,用于生成指定格式的字符串及对字符串进行各种处理 使用方式 实体类继承 BaseEntity 并使用注解 @TableAttribute(name = "user_info",comment = "用户信息表") public class ...
在.NET Core的项目中,如果我们要在项目中引用其它DLL文件,不建议直接在项目引用中添加DLL文件(虽然在.NET ...首先我们新建一个.NET Core类库项目”Custom.Library.StringUtils”,它包含一个简单的字符串工具类”St
//对字符串解密--主要针对JS传过来的加密字符串解密,其内部也要调用上面的方法. String decryptStr(String paramStr, String basePath) //注意JS中用到的encryptionExponent和modulus通过pk.getPublicKey()....
将请求体中的JSON字符串绑定到相应的bean上 修改 Controller @PutMapping service updateByPrimaryKey 删除 Controller @DeleteMapping @PathVariable Param 规格组id查询规格 url:params?gid=14 @...