com.oecp.myplatform.common.utils.StringUtils.java Source code

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Here is the source code for com.oecp.myplatform.common.utils.StringUtils.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.oecp.myplatform.common.utils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.servlet.http.HttpServletRequest;

/**
 * , org.apache.commons.lang3.StringUtils
 * @author Changer
 * @version 2014-04-21
 */
public class StringUtils extends org.apache.commons.lang.StringUtils {

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

    public static String upperFirst(String str) {
        if (StringUtils.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;
    }

    /**
     * ?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();
    }

    /**
     * ?
     */
    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();
    }

}