How to Quickly Switch to Smart-Servlet with Spring Boot Fat Jar

1. Introduction

smart-servlet is a web container that implements the Servlet 3.1 specification, supports isolated multi‑application deployment, and operates as a plugin‑based container with a sandbox that ensures minimal runtime; users can extend its services via custom plugins.

2. Product Features

Domestic lineage: 100% in‑house full‑stack core technology.

Excellent performance: built on the latest communication micro‑kernel smart‑socket.

Secure and reliable: strictly follows protocol specifications and supports encrypted transmission.

Simplified usage: supports War, Jar, SpringBoot, maven‑plugin and other modes, fully compatible with Tomcat.

3. Quick Switch

Note: The example uses a Spring Boot fat jar, version 2.7.13.

3.1 Exclude Tomcat dependency

<!-- exclude tomcat dependency -->
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
  <version>${spring.boot.version}</version>
  <exclusions>
    <exclusion>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
    </exclusion>
  </exclusions>
</dependency>

3.2 Add smart-servlet

<dependency>
  <groupId>org.smartboot.servlet</groupId>
  <artifactId>smart-servlet-spring-boot-starter</artifactId>
  <version>0.3</version>
</dependency>

Then start the service as usual.

4. smart-socket Introduction

smart-socket is a 100% self‑developed open‑source communication framework that enhances AIO implementation for superior performance and stability, achieving high rankings in the TechEmpower Web Framework Benchmarks.

5. smart Ecosystem

Leveraging the smart-socket foundation, the community has expanded to include smart-http, smart-servlet, and smart-mqtt components, further enhancing functionality and applicability such as high‑performance HTTP services and reliable IoT messaging.

6. Summary

The article also references several Nacos migration plugins and notes that smart-servlet currently does not support Spring Boot 3.x due to the Jakarta servlet API change, but hopes for continued improvements.