地理信息目录服务元数据的解析方法研究

Research on the resolving methods of register geographic information catalogue service metadata

为解决地理信息目录服务中服务元数据注册和检索的效率问题,归纳两种服务元数据解析模式——注册解析模式和检索解析模式,并从服务提供者和用户、注册和检索两个方面,分析比较两种元数据解析模式在注册和发现过程中的优缺点,得出注册解析模式更适合当前的应用模式。提出注册解析模式的一种具体实现方法,选用dom4j进行服务元数据解析,并将解析到的元数据内容存储到元数据库中,实现服务元数据的注册和管理。

Two service metadata resolving modes-register resolving mode and retrieval resolving mode,are proposed to solve the catalogue services of geographic information service metadata registry problems.Then the conclusion shows that the register resolving mode is preferable with the consideration from both service providers and users,registration and retrieval and the analyzation from the advantages and disadvantages of the two models.A register resolving method is proposed to realize the register and management of service metadata with using dom4 j as a way to resolve the service metadata which will be stored in the metadata-base.