The Design of Public Opinion Survey System based on DI AOP

摘要

The Scalability of Information system is reflected in how to use loose coupling mechanism.When the function of a module is upgrading, changes within the module should affect as little as possible the other modules that depend on the modules which is previously mentioned.The interfaced-based programming method give us the ability to build complex systems; but how to implement loose coupling between modules in the code is a issue be worth discussing.The paper aims to study use dependency injection(DI) technology to reduce the degree of correlation between the various modules in the information system.At the same time.lhe robustness and reliability of information system also depends on complete and accurate log system.The paper implements a log system about network-based public information survey system with Aspect-oriented programming(AOP).In such information system.log system is separated from the business logic module and improve the system development efficiency and scalability.