This article explains why many large enterprises forbid the default Tomcat in SpringBoot projects, comparing memory usage, concurrency handling, architectural differences, and configuration flexibility of Tomcat and Undertow, and provides migration guidelines and real‑world case studies.
CodeBlitz 2.0, an OpenSumi‑based pure‑browser IDE framework, eliminates the need for containers by offering AI‑native code completion, multi‑instance editors, a DiffViewerRenderer component, and early WebContainer support, positioning it as a next‑generation Web IDE for code reading, review, prototyping, online testing, and more.
This article explains how to replace the default embedded Tomcat container in Spring Boot with Undertow, compares their performance and memory usage through load tests, and demonstrates why Undertow is a better choice for high‑concurrency Java web applications.
To overcome the limitations of the original WebWorker‑based TypeScript service in Alipay Cloud Development, the team integrated WebContainer’s in‑browser Node.js runtime, modularized the IDE with CodeBlitz and OpenSumi, and optimized npm installation, delivering a near‑local development experience.
