@Override
	public String toString() {
		return "TeacherCar [" + (date != null ? "date=" + date + ", " : "")
				+ (time != null ? "time=" + time + ", " : "")
				+ (stopNo != null ? "stopNo=" + stopNo + ", " : "")
				+ (siteNo != null ? "siteNo=" + siteNo + ", " : "")
				+ (techerNo != null ? "techerNo=" + techerNo + ", " : "")
				+ (url != null ? "url=" + url : "") + "]";
	}