code: public static java.sql.Timestamp toSqlTimestamp(java.util.Date date) {
  		return new java.sql.Timestamp(date.getTime());
  	}
docs: 转换为{@link java.sql.Timestamp}
  
  @param date {@link java.util.Date}
  @return {@link java.sql.Timestamp}
  @since 3.1.2