为提升高校信息门户系统底层数据交互的安全性、高效性、复用性，提出在信息门户系统中通过API接口来取代数据库接口获取数据的传统方式。并以长春工业大学信息门户系统数据层设计与实现为实例，制定信息门户系统数据接口设计方案。

In order to improve the security, efficiency and reusability of the bottom data interaction in university information portal system, the way to obtain data through the API interface in the information portal system is put forward which replaces the traditional way through database interface. Taking the design and implementation of the data portal of the information portal system of Changchun University of Technology as an example, the data interface design scheme is made.