Why Switch from Maven to Gradle? A Hands‑On Migration Guide

Introduction

This guide demonstrates how to migrate the mall‑tiny Spring Boot scaffold from Maven to Gradle and compares build performance.

What is Gradle?

Gradle is an open‑source, high‑performance build automation tool that can be scripted with Groovy or Kotlin DSL. It supports parallel task execution, incremental builds, and a rich plugin ecosystem.

Highly customizable and extensible.

Fast incremental builds with parallel execution.

Official Android build system and broad language support.

Creating a Gradle Project

Download the full Gradle distribution (source‑included) from https://gradle.org/releases/.

Unzip the package.

In IntelliJ IDEA, create a new Spring Boot project and select “Gradle” as the build system.

Point the IDE to the unzipped Gradle directory.

The generated project contains build.gradle and settings.gradle.

Gradle Plugins Used

plugins {
    id 'org.springframework.boot' version '2.3.0.RELEASE'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
}

org.springframework.boot – Provides Spring Boot support and lets you set the Boot version via the version property.

io.spring.dependency-management – Enables Maven‑like dependency version management, allowing you to omit versions in implementation statements.

java – Adds Java compilation, testing, and other standard tasks.

Maven‑to‑Gradle Dependency Migration

Replace each <dependency> entry in pom.xml with a Gradle implementation line. Example for the Hutool library:

dependencies {
    implementation 'cn.hutool:hutool-all:4.5.7'
}

If dependency download is slow, configure a faster mirror:

repositories {
    maven { url 'https://maven.aliyun.com/repository/public' }
    mavenCentral()
}

Complete build.gradle Example

plugins {
    id 'org.springframework.boot' version '2.3.0.RELEASE'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
}

group = 'com.macro.mall.tiny'
version = '1.0.0-SNAPSHOT'
sourceCompatibility = '1.8'

repositories {
    maven { url 'https://maven.aliyun.com/repository/public' }
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-web'
    testImplementation('org.springframework.boot:spring-boot-starter-test') {
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
    implementation 'org.springframework.boot:spring-boot-starter-actuator'
    implementation 'org.springframework.boot:spring-boot-starter-aop'
    implementation 'org.springframework.boot:spring-boot-starter-validation'
    implementation 'org.springframework.boot:spring-boot-starter-data-redis'
    implementation 'org.springframework.boot:spring-boot-starter-security'
    implementation 'org.springframework.boot:spring-boot-configuration-processor'
    implementation 'org.projectlombok:lombok'
    annotationProcessor 'org.projectlombok:lombok'
    implementation 'com.alibaba:druid-spring-boot-starter'
    implementation 'mysql:mysql-connector-java'
    implementation 'io.springfox:springfox-swagger2'
    implementation 'io.springfox:springfox-swagger-ui'
    implementation 'io.swagger:swagger-models'
    implementation 'io.swagger:swagger-annotations'
    implementation 'cn.hutool:hutool-all'
    implementation 'io.jsonwebtoken:jjwt'
    implementation 'com.baomidou:mybatis-plus-boot-starter'
    implementation 'com.baomidou:mybatis-plus-generator'
    implementation 'org.apache.velocity:velocity-engine-core'
}

dependencyManagement {
    dependencies {
        dependency 'com.alibaba:druid-spring-boot-starter:1.1.10'
        dependency 'mysql:mysql-connector-java:8.0.16'
        dependency 'io.springfox:springfox-swagger2:2.9.2'
        dependency 'io.springfox:springfox-swagger-ui:2.9.2'
        dependency 'io.swagger:swagger-models:1.6.0'
        dependency 'io.swagger:swagger-annotations:1.6.0'
        dependency 'cn.hutool:hutool-all:4.5.7'
        dependency 'io.jsonwebtoken:jjwt:0.9.0'
        dependency 'com.baomidou:mybatis-plus-boot-starter:3.3.2'
        dependency 'com.baomidou:mybatis-plus-generator:3.3.2'
        dependency 'org.apache.velocity:velocity-engine-core:2.2'
    }
}

test {
    useJUnitPlatform()
}

Build Time Comparison

Using the original Maven project, mvn clean package took about 32 seconds . After converting to Gradle, ./gradlew clean bootJar completed in roughly 15 seconds , more than twice as fast.

Conclusion

Gradle provides a flexible, concise DSL and superior build performance for Java projects. When comfortable with Groovy (or Kotlin) scripts, developers can leverage Gradle’s extensibility and speed advantages over Maven.

References

Gradle official documentation: https://docs.gradle.org