Java--MD5加密

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import java.security.MessageDigest;public class MD5Util {    /***     * MD5加码 生成32位md5码      */    public static String string2MD5(String inStr){        MessageDigest md5 = null;        try{            md5 = MessageDigest.getInstance("MD5");        }catch (Exception e){            e.printStackTrace();            return "";        }        char[] charArray = inStr.toCharArray();        byte[] byteArray = new byte[charArray.length];        for (int i = 0; i < charArray.length; i++)            byteArray[i] = (byte) charArray[i];        byte[] md5Bytes = md5.digest(byteArray);        StringBuffer hexValue = new StringBuffer();        for (int i = 0; i < md5Bytes.length; i++){            int val = ((int) md5Bytes[i]) & 0xff;            if (val < 16)                hexValue.append("0");            hexValue.append(Integer.toHexString(val));        }        return hexValue.toString();    }}

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