字符串工具類, 繼承org.apache.commons.lang3.StringUtils類

/**
 * Copyright &copy; 2015-2020 <a href="http://www.jeeplus.org/">JeePlus</a> All rights reserved.
 */
package com.jeeplus.common.utils;


import java.io.UnsupportedEncodingException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.Random;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


import javax.servlet.http.HttpServletRequest;


import org.apache.commons.lang3.RandomStringUtils;
import org.apache.commons.lang3.StringEscapeUtils;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.LocaleResolver;


import com.google.common.collect.Lists;
import com.jeeplus.mobile.exception.MessageException;


/**
 * 字符串工具類, 繼承org.apache.commons.lang3.StringUtils類
 * 
 * @author jeeplus
 * @version 2013-05-22
 */
public class StringUtils extends org.apache.commons.lang3.StringUtils {


private static final char SEPARATOR = '_';
private static final String CHARSET_NAME = "UTF-8";


/**
* 轉換爲字節數組
* 
* @param str
* @return
*/
public static byte[] getBytes(String str) {
if (str != null) {
try {
return str.getBytes(CHARSET_NAME);
} catch (UnsupportedEncodingException e) {
return null;
}
} else {
return null;
}
}


/**
* 轉換爲字節數組
* 
* @param str
* @return
*/
public static String toString(byte[] bytes) {
try {
return new String(bytes, CHARSET_NAME);
} catch (UnsupportedEncodingException e) {
return EMPTY;
}
}


/**
* 是否包含字符串
* 
* @param str
*            驗證字符串
* @param strs
*            字符串組
* @return 包含返回true
*/
public static boolean inString(String str, String... strs) {
if (str != null) {
for (String s : strs) {
if (str.equals(trim(s))) {
return true;
}
}
}
return false;
}


/**
* 替換掉HTML標籤方法
*/
public static String replaceHtml(String html) {
if (isBlank(html)) {
return "";
}
String regEx = "<.+?>";
Pattern p = Pattern.compile(regEx);
Matcher m = p.matcher(html);
String s = m.replaceAll("");
return s;
}


/**
* 替換爲手機識別的HTML，去掉樣式及屬性，保留回車。
* 
* @param html
* @return
*/
public static String replaceMobileHtml(String html) {
if (html == null) {
return "";
}
return html.replaceAll("<([a-z]+?)\\s+?.*?>", "<$1>");
}


/**
* 替換爲手機識別的HTML，去掉樣式及屬性，保留回車。
* 
* @param txt
* @return
*/
public static String toHtml(String txt) {
if (txt == null) {
return "";
}
return replace(replace(Encodes.escapeHtml(txt), "\n", "<br/>"), "\t", "&nbsp; &nbsp; ");
}


/**
* 縮略字符串（不區分中英文字符）
* 
* @param str
*            目標字符串
* @param length
*            截取長度
* @return
*/
public static String abbr(String str, int length) {
if (str == null) {
return "";
}
try {
StringBuilder sb = new StringBuilder();
int currentLength = 0;
for (char c : replaceHtml(StringEscapeUtils.unescapeHtml4(str)).toCharArray()) {
currentLength += String.valueOf(c).getBytes("GBK").length;
if (currentLength <= length - 3) {
sb.append(c);
} else {
sb.append("...");
break;
}
}
return sb.toString();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return "";
}


public static String abbr2(String param, int length) {
if (param == null) {
return "";
}
StringBuffer result = new StringBuffer();
int n = 0;
char temp;
boolean isCode = false; // 是不是HTML代碼
boolean isHTML = false; // 是不是HTML特殊字符,如&nbsp;
for (int i = 0; i < param.length(); i++) {
temp = param.charAt(i);
if (temp == '<') {
isCode = true;
} else if (temp == '&') {
isHTML = true;
} else if (temp == '>' && isCode) {
n = n - 1;
isCode = false;
} else if (temp == ';' && isHTML) {
isHTML = false;
}
try {
if (!isCode && !isHTML) {
n += String.valueOf(temp).getBytes("GBK").length;
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}


if (n <= length - 3) {
result.append(temp);
} else {
result.append("...");
break;
}
}
// 取出截取字符串中的HTML標記
String temp_result = result.toString().replaceAll("(>)[^<>]*(<?)", "$1$2");
// 去掉不需要結素標記的HTML標記
temp_result = temp_result.replaceAll(
"</?(AREA|BASE|BASEFONT|BODY|BR|COL|COLGROUP|DD|DT|FRAME|HEAD|HR|HTML|IMG|INPUT|ISINDEX|LI|LINK|META|OPTION|P|PARAM|TBODY|TD|TFOOT|TH|THEAD|TR|area|base|basefont|body|br|col|colgroup|dd|dt|frame|head|hr|html|img|input|isindex|li|link|meta|option|p|param|tbody|td|tfoot|th|thead|tr)[^<>]*/?>",
"");
// 去掉成對的HTML標記
temp_result = temp_result.replaceAll("<([a-zA-Z]+)[^<>]*>(.*?)</\\1>", "$2");
// 用正則表達式取出標記
Pattern p = Pattern.compile("<([a-zA-Z]+)[^<>]*>");
Matcher m = p.matcher(temp_result);
List<String> endHTML = Lists.newArrayList();
while (m.find()) {
endHTML.add(m.group(1));
}
// 補全不成對的HTML標記
for (int i = endHTML.size() - 1; i >= 0; i--) {
result.append("</");
result.append(endHTML.get(i));
result.append(">");
}
return result.toString();
}


/**
* 轉換爲Double類型
*/
public static Double toDouble(Object val) {
if (val == null) {
return 0D;
}
try {
return Double.valueOf(trim(val.toString()));
} catch (Exception e) {
return 0D;
}
}


/**
* 轉換爲Float類型
*/
public static Float toFloat(Object val) {
return toDouble(val).floatValue();
}


/**
* 轉換爲Long類型
*/
public static Long toLong(Object val) {
return toDouble(val).longValue();
}


/**
* 轉換爲Integer類型
*/
public static Integer toInteger(Object val) {
return toLong(val).intValue();
}


/**
* 獲得i18n字符串
*/
public static String getMessage(String code, Object[] args) {
LocaleResolver localLocaleResolver = (LocaleResolver) SpringContextHolder.getBean(LocaleResolver.class);
HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes())
.getRequest();
Locale localLocale = localLocaleResolver.resolveLocale(request);
return SpringContextHolder.getApplicationContext().getMessage(code, args, localLocale);
}


/**
* 獲得用戶遠程地址
*/
public static String getRemoteAddr(HttpServletRequest request) {
String remoteAddr = request.getHeader("X-Real-IP");
if (isNotBlank(remoteAddr)) {
remoteAddr = request.getHeader("X-Forwarded-For");
} else if (isNotBlank(remoteAddr)) {
remoteAddr = request.getHeader("Proxy-Client-IP");
} else if (isNotBlank(remoteAddr)) {
remoteAddr = request.getHeader("WL-Proxy-Client-IP");
}
return remoteAddr != null ? remoteAddr : request.getRemoteAddr();
}


/**
* 駝峯命名法工具
* 
* @return toCamelCase("hello_world") == "helloWorld"
*         toCapitalizeCamelCase("hello_world") == "HelloWorld"
*         toUnderScoreCase("helloWorld") = "hello_world"
*/
public static String toCamelCase(String s) {
if (s == null) {
return null;
}


s = s.toLowerCase();


StringBuilder sb = new StringBuilder(s.length());
boolean upperCase = false;
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);


if (c == SEPARATOR) {
upperCase = true;
} else if (upperCase) {
sb.append(Character.toUpperCase(c));
upperCase = false;
} else {
sb.append(c);
}
}


return sb.toString();
}


/**
* 駝峯命名法工具
* 
* @return toCamelCase("hello_world") == "helloWorld"
*         toCapitalizeCamelCase("hello_world") == "HelloWorld"
*         toUnderScoreCase("helloWorld") = "hello_world"
*/
public static String toCapitalizeCamelCase(String s) {
if (s == null) {
return null;
}
s = toCamelCase(s);
return s.substring(0, 1).toUpperCase() + s.substring(1);
}


/**
* 駝峯命名法工具
* 
* @return toCamelCase("hello_world") == "helloWorld"
*         toCapitalizeCamelCase("hello_world") == "HelloWorld"
*         toUnderScoreCase("helloWorld") = "hello_world"
*/
public static String toUnderScoreCase(String s) {
if (s == null) {
return null;
}


StringBuilder sb = new StringBuilder();
boolean upperCase = false;
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);


boolean nextUpperCase = true;


if (i < (s.length() - 1)) {
nextUpperCase = Character.isUpperCase(s.charAt(i + 1));
}


if ((i > 0) && Character.isUpperCase(c)) {
if (!upperCase || !nextUpperCase) {
sb.append(SEPARATOR);
}
upperCase = true;
} else {
upperCase = false;
}


sb.append(Character.toLowerCase(c));
}


return sb.toString();
}


/**
* 如果不爲空，則設置值
* 
* @param target
* @param source
*/
public static void setValueIfNotBlank(String target, String source) {
if (isNotBlank(source)) {
target = source;
}
}


/**
* 轉換爲JS獲取對象值，生成三目運算返回結果
* 
* @param objectString
*            對象串 例如：row.user.id
*            返回：!row?'':!row.user?'':!row.user.id?'':row.user.id
*/
public static String jsGetVal(String objectString) {
StringBuilder result = new StringBuilder();
StringBuilder val = new StringBuilder();
String[] vals = split(objectString, ".");
for (int i = 0; i < vals.length; i++) {
val.append("." + vals[i]);
result.append("!" + (val.substring(1)) + "?'':");
}
result.append(val.substring(1));
return result.toString();
}


/**
* 判斷是否爲手機號 格式1開頭，11位數就滿足了
* 
* @param mobile
* @return
*/
public static boolean isMobileNO(String mobile) {
if (!StringUtils.isBlank(mobile)) {
Pattern p = Pattern.compile("^1\\d{10}$");
Matcher m = p.matcher(mobile);
return m.matches();
} else {
return false;
}
}


/**
* 根據特定字符生成size位的隨機數
* 
* @param size
* @param sources
*            爲空時默認值爲0123456789ABCDEFGHJKLMNOPQRSTUVWXYZ
* @return
*/
public static String getRandomString(int size, String sources) {
if (StringUtils.isEmpty(sources)) {
sources = "0123456789ABCDEFGHJKLMNOPQRSTUVWXYZ";
}
int codesLen = sources.length();
Random rand = new Random(System.currentTimeMillis());
StringBuilder verifyCode = new StringBuilder(size);
for (int i = 0; i < size; i++) {
verifyCode.append(sources.charAt(rand.nextInt(codesLen - 1)));
}
return verifyCode.toString();
}

/** 
     * 生成業務流水號 
     * 系統標識（sysFlg.length位）+時間（14位，年月日時分秒）+系統流水（randomCount位） 
     *  
     * @param sysFlg        系統標識 
     * @param randomCount   隨機數位數 
     * @return 
     */  
    public static synchronized String createSerial(String sysFlg, int randomCount){  
        safeSleep(1);  
        SimpleDateFormat sdft = new SimpleDateFormat("yyyyMMddHHmmss");  
        Date nowdate = new Date();  
        String str = sdft.format(nowdate);  
        return sysFlg + str + RandomStringUtils.randomNumeric(randomCount);  
    } 
    
    /**
     * @Title：createStr
     * @Description：生成字符串，格式爲:"sz,2017-03-20 13:00:00,2017-03-20 14:00:00,2017-03-20 13"用於在觸發器中獲取這些參數
     * @param flg 城市代號
     * @return String 返回類型
     */
    public static synchronized String createStr(String flg){
    safeSleep(1); 
    SimpleDateFormat sdft = new SimpleDateFormat("yyyy-MM-dd HH");
    SimpleDateFormat sd = new SimpleDateFormat("yyyyMMddHH"); 
        Date nowdate = new Date();  
        String beginDate = sdft.format(nowdate)+":00:00";
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, cal.get(Calendar.HOUR_OF_DAY)+1);
        String endDate = sdft.format(cal.getTime())+":00:00";
        String dateStr = sd.format(nowdate);
        return flg +","+ beginDate +","+endDate+","+dateStr;
    }
      
    public static void safeSleep(long millis){  
        try {  
            Thread.sleep(millis);  
        } catch (InterruptedException e) {  
            e.printStackTrace();  
        }  
    }  
    
    /**
     * 判斷是否含有emoj表情
     * @param source
     * @return
     */
    public static boolean containsEmoji(String source) {
        int len = source.length();
        boolean isEmoji = false;
        for (int i = 0; i < len; i++) {
            char hs = source.charAt(i);
            if (0xd800 <= hs && hs <= 0xdbff) {
                if (source.length() > 1) {
                    char ls = source.charAt(i + 1);
                    int uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;
                    if (0x1d000 <= uc && uc <= 0x1f77f) {
                        return true;
                    }
                }
            } else {
                // non surrogate
                if (0x2100 <= hs && hs <= 0x27ff && hs != 0x263b) {
                    return true;
                } else if (0x2B05 <= hs && hs <= 0x2b07) {
                    return true;
                } else if (0x2934 <= hs && hs <= 0x2935) {
                    return true;
                } else if (0x3297 <= hs && hs <= 0x3299) {
                    return true;
                } else if (hs == 0xa9 || hs == 0xae || hs == 0x303d
                        || hs == 0x3030 || hs == 0x2b55 || hs == 0x2b1c
                        || hs == 0x2b1b || hs == 0x2b50 || hs == 0x231a) {
                    return true;
                }
                if (!isEmoji && source.length() > 1 && i < source.length() - 1) {
                    char ls = source.charAt(i + 1);
                    if (ls == 0x20e3) {
                        return true;
                    }
                }
            }
        }
        return isEmoji;
    }


    private static boolean isEmojiCharacter(char codePoint) {
        return (codePoint == 0x0) || (codePoint == 0x9) || (codePoint == 0xA)
                || (codePoint == 0xD)
                || ((codePoint >= 0x20) && (codePoint <= 0xD7FF))
                || ((codePoint >= 0xE000) && (codePoint <= 0xFFFD))
                || ((codePoint >= 0x10000) && (codePoint <= 0x10FFFF));
    }


    /**
     * 過濾emoji 或者 其他非文字類型的字符
     * 
     * @param source
     * @return
     */
    public static String filterEmoji(String source) {
        if (StringUtils.isBlank(source)) {
            return source;
        }
        StringBuilder buf = null;
        int len = source.length();
        for (int i = 0; i < len; i++) {
            char codePoint = source.charAt(i);
            if (isEmojiCharacter(codePoint)) {
                if (buf == null) {
                    buf = new StringBuilder(source.length());
                }
                buf.append(codePoint);
            }
        }
        if (buf == null) {
            return source;
        } else {
            if (buf.length() == len) {
                buf = null;
                return source;
            } else {
                return buf.toString();
            }
        }
    }


    /**
     * @Title：getDateLength
     * @Description：計算年齡
     * @param from
     * @param to
     * @return String 返回類型
     */
    public static String getDateLength(Date from,Date to){
    if(from == null || to == null){
    return 0+"";
    }
    Calendar c1 = Calendar.getInstance();
    Calendar c2 = Calendar.getInstance();
    c1.setTime(from);
    c2.setTime(to);
    int from_year = c1.get(Calendar.YEAR);
    int from_month = c1.get(Calendar.MONTH)+1;
    int from_day = c1.get(Calendar.DAY_OF_MONTH);
    int to_year = c2.get(Calendar.YEAR);
    int to_month = c2.get(Calendar.MONTH)+1;
    int to_day = c2.get(Calendar.DAY_OF_MONTH);
    int age = 0;
    if(to_year - from_year>0){
    age = to_year - from_year;
    if(to_month - from_month<0){
    age = age - 1;
    }else if(to_month - from_month==0){
    if(to_day - from_day < 0){
    age = age - 1;
    }
    }
    }
    return age+"";
}
    
    /**
     * @Title：countAge
     * @Description：計算年齡
     * @param from  生日
     * @return String 返回類型
     */
    public static String countAge(Date from){
    String age = "";
int year = 0;
int month = 0;
int day = 0;
    if(from == null){
    age = age + 0;
    } else {
    Calendar c1 = Calendar.getInstance();
        Calendar c2 = Calendar.getInstance();
        c1.setTime(from);
        c2.setTime(new Date());
        if (c1.after(c2)) {
        throw new IllegalArgumentException("生日不能超過當前日期");
            }
        int from_year = c1.get(Calendar.YEAR);
        int from_month = c1.get(Calendar.MONTH)+1;
        int from_day = c1.get(Calendar.DAY_OF_MONTH);
        System.out.println("以前："+from_year + "-" + from_month + "-" + from_day);
        int MaxDayOfMonth = c1.getActualMaximum(Calendar.DAY_OF_MONTH);
        //System.out.println(MaxDayOfMonth);
        int to_year = c2.get(Calendar.YEAR);
        int to_month = c2.get(Calendar.MONTH)+1;
        int to_day = c2.get(Calendar.DAY_OF_MONTH);
        System.out.println("現在："+to_year+"-"+to_month+"-"+to_day);
       
        year = to_year - from_year;
        if(c2.get(Calendar.DAY_OF_YEAR) - c1.get(Calendar.DAY_OF_YEAR) < 0){
        year = year -1;
        }
        if(year < 1){// 小於一歲要精確到月份和天數
        System.out.println("--------");
        if(to_month - from_month>0){
        month = to_month -from_month;
        if(to_day - from_day < 0){
        month = month - 1;
        day = to_day -from_day + MaxDayOfMonth;
        } else {
        day= to_day -from_day;
        }
        }else if(to_month - from_month==0){
          if(to_day - from_day > 0){
          day = to_day -from_day;
          }
        }
        }
        if(year > 1){
        age = age + year + "歲";
        }else if(month > 0) {
        age = age + month + "個月" + day + "天";
        } else {
        age=age + day + "天";
        }
    }
    //System.out.println(year + "--" + month + "--" + day);
    return age;
}
    
    public static void main(String[] args) throws MessageException, ParseException {
/*String string = "This is a smiley \uD83C\uDFA6 face\uD860\uDD5D \uD860\uDE07 \uD860\uDEE2 \uD863\uDCCA \uD863\uDCCD \uD863\uDCD2 \uD867\uDD98 ";
   System.out.println(containsEmoji(string));
   System.out.println(filterEmoji(string));*/
    SimpleDateFormat sdf =   new SimpleDateFormat( "yyyy-MM-dd" );
Date from = sdf.parse(null);
System.out.println(countAge(from));
    } 


}