com.tinypace.mobistore.util.StringUtil.java Source code

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Here is the source code for com.tinypace.mobistore.util.StringUtil.java

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/**
 * Copyright &copy; 2012-2013 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 */
package com.tinypace.mobistore.util;

import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.util.Locale;
import java.util.Random;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.servlet.http.HttpServletRequest;

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;

/**
 * , org.apache.commons.lang3.StringUtils
 * @author ThinkGem
 * @version 2013-05-22
 */
public class StringUtil extends org.apache.commons.lang3.StringUtils {

    public static boolean IsEmpty(String str) {
        if (str == null || str.trim().equals("")) {
            return true;
        } else {
            return false;
        }
    }

    public static String lowerFirst(String str) {
        if (StringUtil.isBlank(str)) {
            return "";
        } else {
            return str.substring(0, 1).toLowerCase() + str.substring(1);
        }
    }

    public static String upperFirst(String str) {
        if (StringUtil.isBlank(str)) {
            return "";
        } else {
            return str.substring(0, 1).toUpperCase() + str.substring(1);
        }
    }

    /**
     * ?HTML
     */
    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;
    }

    /**
     * ?
     * @param str 
     * @param length ?
     * @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 "";
    }

    /**
     * ?html
     * @param str 
     * @param length ?
     * @return
     */
    public static String rabbr(String str, int length) {
        return abbr(replaceHtml(str), length);
    }

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

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

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

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

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

    /**
     * ?
     */
    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();
    }

    /**
     * ?JS???
     * @param objectString 
     *   row.user.id
     *   !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();
    }

    /**
     * 
     *???
     * @param len 
     * @return 
     */
    public static String RandomString(int len) {
        final int maxNum = 10;
        int i; // ??   
        int count = 0; // ??   
        char[] str = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
                's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };

        //        char[] str = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };   

        StringBuffer pwd = new StringBuffer("");
        Random r = new Random();
        while (count < len) {
            // ?????
            i = Math.abs(r.nextInt(maxNum)); // ?36-1   
            if (i >= 0 && i < str.length) {
                pwd.append(str[i]);
                count++;
            }
        }
        return pwd.toString();
    }

    public static String RandomNumbString(int len) {
        final int maxNum = 10;
        int i; // ??   
        int count = 0; // ??   
        char[] str = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };

        StringBuffer pwd = new StringBuffer("");
        Random r = new Random();
        while (count < len) {
            // ?????
            i = Math.abs(r.nextInt(maxNum)); // ?36-1   
            if (i >= 0 && i < str.length) {
                pwd.append(str[i]);
                count++;
            }
        }
        return pwd.toString();
    }

    public static String GetUuid() {
        UUID uuid = UUID.randomUUID();
        String str = uuid.toString();
        str = str.replace("-", "");
        return str.toUpperCase();
    }

    public static String formatMoney(BigDecimal d) {
        DecimalFormat mformat = new DecimalFormat();
        mformat.setMaximumFractionDigits(2);
        mformat.setMinimumFractionDigits(2);
        mformat.setGroupingSize(20);
        return mformat.format(d);
    }

    public static void main(String[] args) {
        //       String aa = "1234567890ABCDEFG";
        //       System.out.println(aa);
        //       aa = Confuse(aa);
        //       System.out.println(aa);
        //       aa = UnConfuse(aa);
        //       System.out.println(aa);
    }
}