Java MD5 BASE64加密工具类

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package com.phoenix.core.db.Utils;import sun.misc.BASE64Decoder;import sun.misc.BASE64Encoder;import java.io.IOException;import java.math.BigInteger;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;/** * Created by Lovell on 16/6/28. */public class EncryptUtils {    /**     * 用MD5算法进行加密     * @param str 需要加密的字符串     * @return MD5加密后的结果     */    public static String encodeMD5String(String str) {        return encode(str, "MD5");    }    /**     * 用SHA算法进行加密     * @param str 需要加密的字符串     * @return SHA加密后的结果     */    public static String encodeSHAString(String str) {        return encode(str, "SHA");    }    /**     * 用base64算法进行加密     * @param str 需要加密的字符串     * @return base64加密后的结果     */    public static String encodeBase64String(String str) {        BASE64Encoder encoder =  new BASE64Encoder();        return encoder.encode(str.getBytes());    }    /**     * 用base64算法进行解密     * @param str 需要解密的字符串     * @return base64解密后的结果     * @throws IOException     */    public static String decodeBase64String(String str) throws IOException {        BASE64Decoder encoder =  new BASE64Decoder();        return new String(encoder.decodeBuffer(str));    }    private static String encode(String str, String method) {        MessageDigest md = null;        String dstr = null;        try {            md = MessageDigest.getInstance(method);            md.update(str.getBytes());            dstr = new BigInteger(1, md.digest()).toString(16);        } catch (NoSuchAlgorithmException e) {            e.printStackTrace();        }        return dstr;    }    public static void main(String[] args) throws IOException {        String user = "Lovell";        System.out.println("原始字符串 " + user);        System.out.println("MD5加密 " + encodeMD5String(user));        System.out.println("SHA加密 " + encodeSHAString(user));        String base64Str = encodeBase64String(user);        System.out.println("Base64加密 " + base64Str);        System.out.println("Base64解密 " + decodeBase64String(base64Str));    }}
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