System structure: Adopt the latest and stable MVC (Model, View and Control) three-tier application structure of J2EE platform.The front-end presentation layer shall adopt the version higher than Struts2.0.The business middleware shall adopt the version higher than Spring3.0. The data persistence layer shall adopt the version higher than Mybatis3.0 or Ibatis3.0. Javascript frame shall adopt the version higher than Jquery2.0. The front-end data exchange shall adopt JSON format.Web middleware shall: adopt the version higher than Tomcat 7.0. Adopt Apache or nginx cluster or load balancing mode. Java language development kit shall: adopt the version higher than JDK6.0.The production environment database shall adopt Oracle database. The developed application program shall be running stably in Oracle database environment.Support EDI data transmission;Support mobile technology architecture