public Blade bootConf(@NonNull String bootConf) {
        this.environment.set(BladeConst.ENV_KEY_BOOT_CONF, bootConf);
        return this;
    }
@Test
    public void testBootConf() {
        Blade blade = Blade.create();
        String bootConf = blade.bootConf("application2.properties").environment().getOrNull(ENV_KEY_BOOT_CONF);
        assertEquals("application2.properties", bootConf);
    }