com.spring.utils.EncodeUtils.java Source code

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Here is the source code for com.spring.utils.EncodeUtils.java

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package com.spring.utils; /**
                          * Copyright (c) 2005-2009 springside.org.cn
                          * <p/>
                          * Licensed under the Apache License, Version 2.0 (the "License");
                          * <p/>
                          * $Id: EncodeUtils.java 984 2010-03-21 13:02:44Z
                          */

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;

import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.lang.StringEscapeUtils;
import org.apache.commons.lang.StringUtils;

/**
 * ?????.
 * <BR>
 * ?Commons-Codec,Commons-Lang?JDK???.
 * <P>
 * @author tangzhengyu
 */
public class EncodeUtils {

    /** ? utf-8. */
    private static final String DEFAULT_URL_ENCODING = "UTF-8";

    /**
     * Hex?.
     * <P>
     * @param input 
     * @return String 
     */
    public static String hexEncode(byte[] input) {
        return Hex.encodeHexString(input);
    }

    /**
     * Hex?.
     * <P>
     * @param input 
     * @return byte[] 
     */
    public static byte[] hexDecode(String input) {
        try {
            return Hex.decodeHex(input.toCharArray());
        } catch (DecoderException e) {
            throw new IllegalStateException("Hex Decoder exception", e);
        }
    }

    /**
     * Base64?.
     * <P>
     * @param input 
     * @return String 
     */
    public static String base64Encode(byte[] input) {
        return new String(Base64.encodeBase64(input));
    }

    /**
     * Base64?, URL(Base64URL?+,/=, ?RFC3548).
     * <P>
     * @param input 
     * @return String 
     */
    public static String base64UrlSafeEncode(byte[] input) {
        return Base64.encodeBase64URLSafeString(input);
    }

    /**
     * Base64?.
     * <P>
     * @param input 
     * @return byte[] 
     */
    public static byte[] base64Decode(String input) {
        return Base64.decodeBase64(input);
    }

    /**
     * URL ?, EncodeUTF-8.
     * <P>
     * @param input 
     * @return String 
     */
    public static String urlEncode(String input) {
        return urlEncode(input, DEFAULT_URL_ENCODING);
    }

    /**
     * URL ?.
     * <P>
     * @param input 
     * @param encoding ?
     * @return String 
     */
    public static String urlEncode(String input, String encoding) {
        try {
            return URLEncoder.encode(input, encoding);
        } catch (UnsupportedEncodingException e) {
            throw new IllegalArgumentException("Unsupported Encoding Exception", e);
        }
    }

    /**
     * URL ?, EncodeUTF-8.
     * <P>
     * @param input 
     * @return String 
     */
    public static String urlDecode(String input) {
        return urlDecode(input, DEFAULT_URL_ENCODING);
    }

    /**
     * URL ?.
     * <P>
     * @param input 
     *  @param encoding ?
     * @return String 
     */
    public static String urlDecode(String input, String encoding) {
        try {
            return URLDecoder.decode(input, encoding);
        } catch (UnsupportedEncodingException e) {
            throw new IllegalArgumentException("Unsupported Encoding Exception", e);
        }
    }

    /**
     * Html ?.
     * <P>
     * @param html 
     *  @return String 
     */
    public static String htmlEscape(String html) {
        return StringEscapeUtils.escapeHtml(html);
    }

    /**
     * Html ?.
     * <P>
     * @param htmlEscaped 
     *  @return String     *
     */
    public static String htmlUnescape(String htmlEscaped) {
        return StringEscapeUtils.unescapeHtml(htmlEscaped);
    }

    /**
     * Xml ?.
     * <P>
     * @param xml 
     *  @return String 
     */
    public static String xmlEscape(String xml) {
        return StringEscapeUtils.escapeXml(xml);
    }

    /**
     * Xml ?.
     * <P>
     * @param xmlEscaped 
     *  @return String 
     */
    public static String xmlUnescape(String xmlEscaped) {
        return StringEscapeUtils.unescapeXml(xmlEscaped);
    }

    /**
     * sql .
     * <P>
     * @param sql 
     *  @return String 
     */
    public static String escapeSql(String sql) {
        if (sql == null) {
            return null;
        }
        return StringUtils.replace(sql, "'", "''");
    }
}