Java Struts to Spring Migration

For a top Enterprise Platform Provider Company in North America

Overview

The enterprise platform relied heavily on legacy Java web frameworks such as Struts and Struts2, supported by thousands of JSPs and action classes. These frameworks had become difficult to maintain, posed security risks, and limited scalability. A focused modernization initiative was launched to migrate the web layer to the Spring framework.

Challenges

Volumes

Over 11,000 JSP files and 9,000+ Struts Action classes with complex interdependencies

Vulnerabilities

High number of critical and high-severity security vulnerabilities.

Outdated

Limited extensibility and poor alignment with modern MVC patterns.

Business risk

Risk of breaking business-critical workflows during migration.

Approach

We performed a detailed impact analysis of the entire application landscape.

Performed detailed dependency and impact analysis of Struts actions and JSPs.
Designed a Spring MVC–based architecture aligned with modern design principles.
Used proprietary automation accelerators to convert:
- Struts Actions to Spring Controllers
- Struts Forms to Spring Forms
Functional and regression testing across all migrated modules.
Security validation to ensure elimination of known vulnerabilities.

Outcome

Technology Migration

Successful migration from Struts/Struts2 to Spring MVC.

Low Maintenance Overheads

Improved code maintainability, testability, and extensibility.

Better Sustainability

Reduced security risk and improved long-term platform sustainability.

Do you have an application running on Struts? Act Now, before it's too late!

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