Android MD5加密算法

    import java.security.MessageDigest;

    import java.security.NoSuchAlgorithmException;


public class MD5 {  

    public static String getMD5(String content) {  
        try {  
            MessageDigest digest = MessageDigest.getInstance("MD5");  
            digest.update(content.getBytes());  
            return getHashString(digest);  

        } catch (NoSuchAlgorithmException 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();  
    }  
}  </pre>