public static RetCode getRetCode(int code) {
		switch (code) {
		case 0:
			return SUCCESS;
		case 65534:
			return ILLEGAL_ARG;
		case 65535:
			return INTERNAL_ERROR;
		case 1001:
			return NOT_FOUND_NODE;
		case 1003:
			return UNSUPPORT_SCHEMA;
		default:
			throw new IllegalArgumentException("错误的code: " + code);
		}
	}