Comparison of Struts2 and SpringMVC: Architectural and Functional Differences

1. Struts2 uses class‑level interception where one class corresponds to a request context, while SpringMVC employs method‑level interception, allowing each method to map directly to a RESTful URL, making SpringMVC naturally suited for RESTful designs.

2. In SpringMVC, methods are largely independent, each with its own request/response data obtained via parameters and returning results through ModelMap, whereas Struts2 shares all Action variables across methods, leading to potential confusion during coding and maintenance.

3. Struts2 wraps servlet lifecycle objects (request, session, etc.) into separate Maps for each Action to ensure thread safety, which can be memory‑intensive compared to SpringMVC.

4. Struts2 relies on its own interceptor mechanism, while SpringMVC uses a separate AOP‑based approach, resulting in larger configuration files for Struts2.

5. SpringMVC’s entry point is a servlet, whereas Struts2 uses a filter, reflecting fundamental differences between servlet and filter architectures.

6. SpringMVC integrates Ajax easily with the @ResponseBody annotation, whereas Struts2 requires additional plugins or custom code within Actions to achieve similar functionality.

7. SpringMVC supports JSR‑303 validation, offering flexible and convenient validation, while Struts2’s validation process is more cumbersome.

8. SpringMVC integrates seamlessly with the Spring ecosystem, providing better project management and security compared to Struts2, which can achieve similar results only with extensive XML configuration.

9. Struts2 aligns more closely with pure OOP principles, whereas SpringMVC extends the servlet model more cautiously.

10. SpringMVC generally delivers higher development efficiency and performance than Struts2.

11. SpringMVC can be considered virtually zero‑configuration, simplifying setup and deployment.

If you find any inaccuracies, feel free to provide feedback, and if the article helped you, consider giving it a like. Original source: blog.csdn.net/chenleixing/article/details/44570681.