MD5 密码加盐

public class MD5PasswordUtils {

    public MD5PasswordUtils(){}


    private static Map config;

    private static final String ENCRYPTION_NUMBER = "ENCRYPTION_NUMBER";
    private static final String INITIAL_PASSWORD = "INITIAL_PASSWORD";

    private static void initConfig() {
        config = new HashedMap();
        config.put("ENCRYPTION_NUMBER", "1");
        config.put("INITIAL_PASSWORD", "Abcd1234");
    }

    /**
     * 初始化密码
     * @param loginName
     * */
    public static String MD5Password(String loginName){
        if (config == null) {
            initConfig();
        }
        Md5PasswordEncoder encoder = new Md5PasswordEncoder();
        encoder.setIterations(Integer.parseInt(config.get("ENCRYPTION_NUMBER").toString()));
        String password = encoder.encodePassword(config.get("INITIAL_PASSWORD").toString(), loginName);
        return password;
    }

    /**
     * 修改密码
     * @param loginName
     * @param newPassword
     * */
    public static String MD5Password(String loginName, String newPassword){
        if (config == null) {
            initConfig();
        }
        Md5PasswordEncoder encoder = new Md5PasswordEncoder();
        encoder.setIterations(Integer.parseInt(config.get("ENCRYPTION_NUMBER").toString()));
        String password = encoder.encodePassword(newPassword, loginName);
        return password;
    }


}