文章通过分析异构数字资源统一查询的流程模型和实现方式,提出针对大学图书馆数字资源的异构性,对不同数据源采用不同的统一查询方式。基于对需要查询的数据源统一资源定位符(URL)和查询参数定义的分析,以天津商业大学图书馆CNKI期刊全文数据库为例,重点分析采用CURL访问组件代理查询图书馆采购的专业数据库。 By analyzing the process model and implementation of uniform query of heterogeneous digital resources, this paper puts forward the heterogeneity of digital resources for university libraries and different unified query methods for different data sources. Based on the analysis of the data source URL (URL) and the definition of query parameters which need to be queried, taking CNKI full-text database of Tianjin University of Commerce as an example, this paper mainly analyzes the professional database which is used by CURL access component agent to query library procurement.