StringUtil

package com.resuce.common.util;

import java.io.IOException;
import java.io.InputStream;
import java.math.BigDecimal;
import java.net.URLEncoder;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.regex.Pattern;

import org.apache.commons.lang.StringUtils;

public class StringUtil {
    private static final String IMG_ICON_SMALL = "1";
    private static final String IMG_ICON_MEDIUM = "2";
    private static final String IMG_ICON_BIG = "3";

    public static String urlEncode(String source) {
        try{
            return URLEncoder.encode(source, "UTF-8");
        }catch(Exception e){
            return null;
        }
    }

    
    public static void appStringBuffer(StringBuffer sf){
        if(StringUtil.notEmpty(sf.toString())){
            sf.append("/");
        }
    }
    
    

    public static boolean isMobile(String mobileNum) {
        if(StringUtils.isBlank(mobileNum)){
            return false;
        }
        //全是字母
        boolean matches = Pattern.matches("(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1})|(17[0-9]{1}))+\\d{8})", mobileNum);
        if (!matches) {
            return false;
        }
        
        return true;
    }
    
    public static boolean checkBankCard(String cardId) {  
        char bit = getBankCardCheckCode(cardId.substring(0, cardId.length() - 1));  
        if(bit == 'N'){  
            return false;  
        }  
        return cardId.charAt(cardId.length() - 1) == bit;  
  }  
   
  /** 
   * 从不含校验位的银行卡卡号采用 Luhm 校验算法获得校验位 
   * @param nonCheckCodeCardId 
   * @return 
   */  
  public static char getBankCardCheckCode(String nonCheckCodeCardId){  
      if(nonCheckCodeCardId == null || nonCheckCodeCardId.trim().length() == 0  
              || !nonCheckCodeCardId.matches("\\d+")) {  
       //如果传的不是数据返回N  
          return 'N';  
      }  
      char[] chs = nonCheckCodeCardId.trim().toCharArray();  
      int luhmSum = 0;  
      for(int i = chs.length - 1, j = 0; i >= 0; i--, j++) {  
          int k = chs[i] - '0';  
          if(j % 2 == 0) {  
              k *= 2;  
              k = k / 10 + k % 10;  
          }  
          luhmSum += k;             
      }  
      return (luhmSum % 10 == 0) ? '0' : (char)((10 - luhmSum % 10) + '0');  
  }  
    
    public static boolean isPayPassword(String password) {
        if (StringUtils.isBlank(password)) {
            return false;
        }
        
        if(password.length() < 6 || password.length() > 12){
            return false;
        }
        
        return true;
    }

    public static boolean isPassword(String password) {
        if (StringUtils.isBlank(password)) {
            return false;
        }

        /*boolean matches = Pattern.matches("[a-zA-Z0-9_]{6,16}", password);
        if (matches) {
            return true;
        }*/

        boolean matches = password.length()<6 || password.length() > 16;
        if (matches) {
            return false;
        }
        //全是数字
          matches = Pattern.matches("[0-9]*", password);
          if (matches) {
            return false;
            }
        //是否只包含数字，不包含字符串
          matches = Pattern.matches("(.*?)\\d(.*?)", password);
          if (!matches) {
              return false;
          }
        
       /* //全是字母
        matches = Pattern.matches("[A-Za-z]*", password);
        if (matches) {
            return false;
        }
        //全是数字
        matches = Pattern.matches("[0-9]*", password);
        if (matches) {
            return false;
        }
        //只能是数字和字母
         matches = Pattern.matches("[A-Za-z0-9]*", password);
        if (!matches) {
            return false;
        }*/

        return true;
    }
    
    
    public static boolean isNumeric(String str){ 
        Pattern pattern = Pattern.compile("[0-9]*"); 
        if(StringUtils.isBlank(str)){
            return false;
        }
        
        if(!pattern.matcher(str).matches()){
            return false;
        }
        
        return true;
     } 
    
    /**
     * @param 用户输入字符串
     * @return 过滤了非法字符的串
     */
    public static String filterString(String source) {
        return "";
    }

    public static void main(String[] args) {
        System.out.println(isMobile("19210572067"));
    }

    public static String changePlaceholder(String source) {
        return "abc";
    }

    /**
     * 方法名称: notEmpty 方法描述: 检测字符串是否不为空(null,"","null") 返回类型：
     * 不为空则返回true，否则返回false 创建人：zhangsg 创建时间：2014-9-9 晚上19:30:05
     * 
     * @throws
     */
    public static boolean notEmpty(String s) {
        return s != null && !"".equals(s) && !"null".equals(s);
    }

    /**
     * 方法名称: isEmpty 方法描述: 检测字符串是否为空(null,"","null") 返回类型： 为空则返回true，不否则返回false
     * 创建人：zhangsg 创建时间：2014-9-9 晚上19:30:05
     * 
     * @throws
     */
    public static boolean isEmpty(String s) {
        return s == null || "".equals(s) || "null".equals(s);
    }

    /**
     * 方法名称: str2StrArray 方法描述: 字符串转换为字符串数组
     * 
     * @param str
     *            字符串 返回类型： 创建人：zhangsg 创建时间：2014-9-9 晚上19:30:05
     * @throws
     */
    public static String[] str2StrArray(String str, String splitRegex) {
        if (isEmpty(str)) {
            return null;
        }
        return str.split(splitRegex);
    }

    /**
     * 方法名称: str2StrArray 方法描述: 用默认的分隔符(,)将字符串转换为字符串数组 返回类型： 字符串 创建人：zhangsg
     * 创建时间：2014-9-9 晚上19:30:05
     * 
     * @throws
     */
    public static String[] str2StrArray(String str) {
        return str2StrArray(str, ",\\s*");
    }

    public static String nullSafeToString(Object obj) {
        if (obj == null) {
            return null;
        }

        return obj.toString();
    }

    public static String leftPad(String value, int totalLength) {
        return StringUtils.leftPad(value, totalLength, "0");
    }
    
    public static String rightPad(String value, int totalLength) {
        return StringUtils.rightPad(value, totalLength, "0");
    }

    public static String leftPadForPrincipleEntry(String value) {
        return StringUtils.leftPad(value, 4, "0");
    }

    public static String getIconImgBig(String img) {
        String[] nameSuffix = getIconImgNameAndSuffix(img);
        return nameSuffix[0] + IMG_ICON_BIG + "." + nameSuffix[1];
    }

    public static String getIconImgMedium(String img) {
        String[] nameSuffix = getIconImgNameAndSuffix(img);
        return nameSuffix[0] + IMG_ICON_MEDIUM + "." + nameSuffix[1];
    }

    public static String getIconImgSmall(String img) {
        String[] nameSuffix = getIconImgNameAndSuffix(img);
        return nameSuffix[0] + IMG_ICON_SMALL + "." + nameSuffix[1];
    }

    private static String[] getIconImgNameAndSuffix(String img) {
        return img.split("\\.");
    }

    public static char ascii2Char(int ASCII) {
        return (char) ASCII;
    }

    public static int char2ASCII(char c) {
        return (int) c;
    }

    /**
     * @Title: ObjectToDoubleUtil
     * @Description: { Object to Double }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static double ObjectToDoubleUtil(Object obj) {
        if (obj != null) {
            return Double.parseDouble(obj.toString());
        }
        return 0;
    }

    /**
     * @Title: ObjectToDoubleUtil
     * @Description: { Object to Integer }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static Integer ObjectToIntegerUtil(Object obj) {
        if (obj != null) {
            return Integer.valueOf(obj.toString());
        }
        return 0;
    }

    /**
     * @Title: ObjectToDoubleUtil
     * @Description: { Object to Integer }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static Float ObjectToFloatUtil(Object obj) {
        if (obj != null) {
            return Float.parseFloat( ObjectToStringUtil(obj) ); 
        }
        return null;
    }

    
    /**
     * @Title: ObjectToDoubleUtil
     * @Description: { Object to Integer }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static boolean ObjectToBooleanUtil(Object obj) {
        if (obj != null && "true".equalsIgnoreCase(obj.toString())) {
            return true; 
        }
        return false;
    }
    
    
    
    /**
     * @Title: ObjectToDoubleUtil
     * @Description: { Object to String }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static String ObjectToStringUtil(Object obj) {
        if (obj != null) {
            return obj.toString();
        }
        return null;
    }

    /**
     * @Title: ObjectToDoubleUtil
     * @Description: { Object to Date }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static Date ObjectToDateUtil(Object obj) {
        if (obj != null) {
            return DateUtil.formatDateTimeStrToDate(obj.toString());
        }
        return null;
    }

    
    /**
     * @Title: ObjectToDoubleUtil
     * @Description: { Object to Date }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static int IntegerTointUtil(Integer obj) {
        if (obj != null) {
            return obj; 
        }
        return 0;
    }
    
    
    
    /**
     * @Title: ObjectToShortUtil
     * @Description: { Object to String }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static Short ObjectToShortUtil(Object obj) {
        if (obj != null) {
            return new Short(ObjectToStringUtil(obj));
        }
        return null;
    }
    
    /**
     * @Title: IntegerToShortUtil
     * @Description: { Object to Integer }
     * @file_name: LoanInvestQueryService.java
     * @user:DING
     */
    public static Short IntegerToShortUtil(Integer obj) {
        if (obj != null) {
            return Short.parseShort(""+obj);
        }
        return null;
    }

    
    /**
     * @Title: doubleBigDecimal
     * @Description: { 百分比 }
     * @file_name: StringUtil.java
     * @user:DING
     */
    public static double getEpercentage(double obj) {
        BigDecimal b = new BigDecimal(obj * 100);
        double f1 = b.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
        return f1;
    }
    
    
    /**
     * @Title: doubleBigDecimal
     * @Description: { 百分比 }
     * @file_name: StringUtil.java
     * @user:DING
     */
    public static double getYieldRate(double obj) {
        BigDecimal b = new BigDecimal(obj);
        double f1 = b.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
        return f1;
    }

    // 根据年月取得 月的天数
    public static int getDayByYearAndMonth(int year, int month) {
        SimpleDateFormat simpleDate = new SimpleDateFormat("yyyy-MM");
        Calendar rightNow = Calendar.getInstance();
        try {
            rightNow.setTime(simpleDate.parse(year + "-" + month));
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return rightNow.getActualMaximum(Calendar.DAY_OF_MONTH);// 根据年月 获取月份天数
    }
    
    public static String getMaskedNickName(String nickName) {
        if(StringUtils.isBlank(nickName)){
            return "";
        }
        
        int length = nickName.length();
        String first = nickName.substring(0, 1);
        String last = nickName.substring(length - 1);
        
        return first + "***" + last;
    }
    
    public static String getMaskedRealName(String realName){
        if(StringUtils.isNotBlank(realName)){
            int length = realName.length();
            StringBuffer displayMaskedName = new StringBuffer();
            for (int i = 0; i < length - 1; i++) {
                displayMaskedName.append("*");
            }
            displayMaskedName.append(realName.substring(length - 1));
            return displayMaskedName.toString();
        }
        
        return "";
    }

    
    public static String getMaskedNickNameSt(String nickName){
        if(StringUtils.isNotBlank(nickName)){
            int length = nickName.length();
            StringBuffer displayMaskedName = new StringBuffer();
            if(length>1){
                displayMaskedName.append(nickName.substring(0,1));
                for (int i = 0; i < length-1; i++) {
                    displayMaskedName.append("*");
                }
            }else{
                return nickName;
            }
            return displayMaskedName.toString();
        }
        return "";
    }
    
    
    
    public static String getShortBankCardNum(String bankCardNum) {
        if(StringUtils.isBlank(bankCardNum)){
            return "";
        }
        int length = bankCardNum.length();
        int lengthxin = length-5;
        int zhengs  = lengthxin/4;
        
        StringBuffer sbf = new StringBuffer();
        for(int i=0;i<zhengs;i++){
            sbf.append("**** ");
        }
        
        int yushu = lengthxin%4;
        if(yushu!=0){
            for(int i=0;i<yushu;i++){
                sbf.append("*");
            }
        }
        String first = bankCardNum.substring(0, 2)+"** ";
        String last = " *"+bankCardNum.substring(length - 3);
        return first + sbf.toString()+ last;
    }
    
    //String to UpperCase
    public static String str2UpperCase(String str) {
        if(StringUtils.isBlank(str)){
            return "";
        }
        return str.toUpperCase();
    }
    
    
      //String to LowerCase
        public static String str2LowerCase(String str) {
            if(StringUtils.isBlank(str)){
                return "";
            }
            return str.toLowerCase();
        }
    
        
        
        
        
        /**
         * 转换返回值类型为UTF-8格式.
         * @param is
         * @return
         */
        public static String convertStreamToString(InputStream is) {    
            StringBuilder sb1 = new StringBuilder();    
            byte[] bytes = new byte[4096];  
            int size = 0;  
            
            try {    
                while ((size = is.read(bytes)) > 0) {  
                    String str = new String(bytes, 0, size, "UTF-8");  
                    sb1.append(str);  
                }  
            } catch (IOException e) {    
                e.printStackTrace();    
            } finally {    
                try {    
                    is.close();    
                } catch (IOException e) {    
                   e.printStackTrace();    
                }    
            }    
            return sb1.toString();    
        }
        
        //字符过滤
        public static String charactersFilter(String st,String seqNum){
                StringBuffer sbf = new StringBuffer();
                if(st.contains("<")){
                     sbf.append(st.substring(0,st.indexOf("<")));
                        String[] stt =  st.split("<");
                        for(String s : stt){
                            if(s.contains(">")){
                                String[] stts = s.split(">");
                                if(stts.length==2){
                                    sbf.append(stts[1]);
                                    
                                    String sa = stts[0];
                                    if(sa.contains("href") && StringUtils.isEmpty(seqNum)){
                                        String[] sb = sa.split("/");
                                        seqNum = sb[sb.length-1];
                                        System.out.println(seqNum);
                                    }
                                }
                            }
                        }
                }else{
                    sbf.append(st);
                }
                 return sbf.toString();
        }
        
        
        
        
    //字符过滤
        public static String charactersFilter(String st){
                StringBuffer sbf = new StringBuffer();
                if(st.contains("<")){
                     sbf.append(st.substring(0,st.indexOf("<")));
                        String[] stt =  st.split("<");
                        for(String s : stt){
                            if(s.contains(">")){
                                String[] stts = s.split(">");
                                if(stts.length==2){
                                    sbf.append(stts[1]);
                                }
                            }
                        }
                }else{
                    sbf.append(st);
                }
                 return sbf.toString();
        }
        
        //IOS 在获取图片路径时 需要把 含有"\" 转换成"/"
        public static String replaceAvatarImg(String avatarImg){
            if(StringUtil.notEmpty(avatarImg)){
                if(avatarImg.contains("\\")){
                    avatarImg = avatarImg.replace("\\", "/");
                }
            }
            return avatarImg;
        }
        
        
        public static String setStringLike(String st){
            if(StringUtil.notEmpty(st)){
                return "'%"+st+"%'";
            }
            return st;
        }    
}