MD5Util.java

package com.finddreams.baselib.utils;

import java.security.MessageDigest;

/**
 * @Description:md5的加密
 * @author http://blog.csdn.net/finddreams
 */ 
public class MD5Util {

	public static String getMD5(String content) {
		try {
			MessageDigest digest = MessageDigest.getInstance("MD5");
			digest.update(content.getBytes());
			return getHashString(digest);
			
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
	
    private static String getHashString(MessageDigest digest) {
        StringBuilder builder = new StringBuilder();
        for (byte b : digest.digest()) {
            builder.append(Integer.toHexString((b >> 4) & 0xf));
            builder.append(Integer.toHexString(b & 0xf));
        }
        return builder.toString();
    }
}