Spring Boot
Spring Boot is the dominant Java framework for building production web services with minimal configuration. It layers auto-configuration and an embedded server over the Spring ecosystem.
Pros
- Auto-configuration. Sensible defaults wire up most of an app without XML or boilerplate. 0
- Enterprise ecosystem. Spring Data, Security, and Cloud cover almost every enterprise need. 0
- Embedded server. Apps ship as a single runnable jar with Tomcat or Netty built in. 0
- Strong typing. The JVM and static types catch many errors before runtime. 0
- Battle-tested. Runs core systems at most large banks and enterprises. 0
Cons
- Heavy startup. JVM warmup and bean scanning slow cold starts in serverless. 0
- Steep concepts. Beans, proxies, and annotations overwhelm newcomers. 0
- Memory hungry. Baseline memory use is high compared to Go or Node. 0
- Verbose. Java ceremony means more code than scripting-language frameworks. 0