Portlets技术应用现状：是否广泛使用及商业生产中是否普及？

Great question—let’s break down where Portlets stand these days, since they’ve definitely faded from the mainstream conversation compared to servlets/JSP.

A Quick History Lesson #

Back in the 2000s to early 2010s, Portlets were extremely prevalent in enterprise web development. They were the go-to tech for building unified portals: think internal company dashboards, intranets, or systems that pulled together content from multiple tools (HR platforms, CRMs, internal docs) into a single, widget-based page. Standards like JSR 168, JSR 286, and later JSR 362 formalized the tech, and platforms like Liferay, IBM WebSphere Portal, and Oracle WebCenter were built entirely around portlet architectures.

Today’s Reality: Portlets Are Rare, But Not Extinct #

Fast forward to now, Portlets are far less common than servlets/JSP, and here’s why:

• Modern frontend shifts: SPAs built with React, Vue, or Angular, paired with RESTful backends, have replaced most traditional portal use cases. These setups are more flexible, easier to maintain, and better suited for responsive, user-centric design.
• Decline of monolithic portals: Most companies are ditching heavy, custom portal systems in favor of lighter SaaS tools (like Microsoft 365 dashboards or Salesforce workspaces) that already aggregate data without needing custom portlet code.
• Steep complexity: Portlets had a unique lifecycle, rendering rules, and integration hoops that made them way more complicated than standard servlets/JSP. They were overkill for all but the most specialized enterprise use cases.

That said, you will still find Portlets in production:

• Large enterprises (banks, government agencies, manufacturing giants) that sunk massive resources into legacy portal systems often keep them running. Rewriting these systems from scratch is expensive and risky, so they maintain and update portlet-based code.
• Niche internal tools where a unified, widget-driven portal is still the best fit—for example, an employee portal that needs to pull data from 10+ internal tools without rebuilding each component.

Should You Learn Portlets? #

If you’re starting a new project today: Skip Portlets entirely. Stick with servlets/JSP (or modern alternatives like Spring Boot with Thymeleaf/React) for most web development needs.

If you’re joining a large enterprise with legacy systems: You might need to brush up on Portlets to maintain existing code, but it’s unlikely to be a core skill for new development.

内容的提问来源于stack exchange，提问作者caasdads