com.miyue.util.EncoderUtil.java Source code

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Here is the source code for com.miyue.util.EncoderUtil.java

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package com.miyue.util;

/**
 * Copyright (c) 2005-2010 springside.org.cn
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * 
 * $Id: EncodeUtils.java 1211 2011-01-19 16:20:45Z feize $
 */

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.codec.digest.DigestUtils;
import org.apache.commons.lang.StringEscapeUtils;

/**
 * ?????.
 * 
 * ?Commons-Codec,Commons-Lang?JDK???.
 * 
 * @author feize
 */
public class EncoderUtil {

    private static final String DEFAULT_URL_ENCODING = "UTF-8";
    private static final String GBK_URL_ENCODING = "GBK";

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

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

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

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

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

    /**
     * URL ?, EncodeUTF-8. 
     */
    public static String URLEncode(String input) {
        try {
            return URLEncoder.encode(input, DEFAULT_URL_ENCODING);
        } catch (UnsupportedEncodingException e) {
            throw new IllegalArgumentException("Unsupported Encoding Exception", e);
        }
    }

    /**
     * URL ?, EncodeGBK. 
     */
    public static String URLEncodeGBK(String input) {
        try {
            return URLEncoder.encode(input, GBK_URL_ENCODING);
        } catch (UnsupportedEncodingException e) {
            throw new IllegalArgumentException("Unsupported Encoding Exception", e);
        }
    }

    public static void main(String[] args) {
        System.out.println(URLEncode("?"));
        try {
            System.out.println(EncoderByMd5("admin"));
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    /**
     * URL ?, EncodeUTF-8. 
     */
    public static String URLDecode(String input) {
        try {
            return URLDecoder.decode(input, DEFAULT_URL_ENCODING);
        } catch (UnsupportedEncodingException e) {
            throw new IllegalArgumentException("Unsupported Encoding Exception", e);
        }
    }

    /**
     * Html ?.
     */
    public static String htmlEscape(String html) {
        return StringEscapeUtils.escapeHtml(html);
    }

    /**
     * Html ?.
     */
    public static String htmlUnescape(String htmlEscaped) {
        return StringEscapeUtils.unescapeHtml(htmlEscaped);
    }

    /**
     * Xml ?.
     */
    public static String xmlEscape(String xml) {
        return StringEscapeUtils.escapeXml(xml);
    }

    /**
     * Xml ?.
     */
    public static String xmlUnescape(String xmlEscaped) {
        return StringEscapeUtils.unescapeXml(xmlEscaped);
    }

    /**
     * 
     * @param str
     * @return ?MD5
     * @throws Exception
     */
    public static String EncoderByMd5(String str) throws Exception {
        return DigestUtils.md5Hex(str.getBytes());
    }
}