Design of cross-domain query of crop germplasm resources investigation platform

In traditional network topological structure, databases and web servers are built independently, and data integration and exchange are implemented through importing/exporting database by using semi-automatic method, which not only burdens Web servers, but adds the time loss of data query. Combined with the build of crop germplasm resources investigation platform, a new cross-domain network structure is designed in this paper. Query data are submitted and returned result information are processed by using Ajax technology. Data transmission takes JSON file format through data agent built between servers and databases. The use of asynchronous data transmission method also decreases the network delay. The test results present the improved network structure has a good performance.