Gradle子项目构建排序：先构建Angular再生成Spring Boot整合Jar包

Hey there! Let's fix this build order issue for you, and I'll even throw in a Kotlin DSL version since you're not a fan of Groovy's syntax. You're already close with your existing configs—here's how to tie everything together:

First: Groovy DSL Solution #

Step 1: Confirm Subprojects Are Included #

Make sure your root settings.gradle lists both subprojects:

include ':core', ':ui'

Step 2: Add Cross-Subproject Dependency #

The key is to make the core subproject's build task depend on the ui subproject's build task. Add this line to your core/build.gradle:

// Ensure core builds only after ui is fully built
build.dependsOn ':ui:build'

That's it! Now when you run gradle build from the root directory:

1. Gradle will first execute the ui subproject's build (including your npm_install and buildAngular tasks, which outputs Angular files to core's static directory)
2. Then it will run the core subproject's build, packaging the Spring Boot jar with the Angular assets included.

Bonus: Kotlin DSL Version (Since You Hate Groovy) #

If you want to migrate everything to Kotlin DSL, here's the full setup:

Root settings.gradle.kts #

include("core", "ui")

ui/build.gradle.kts #

plugins {
    id("com.moowork.node") version "1.2.0"
}

buildscript {
    repositories {
        // Replace with your actual globalRepositories (e.g., mavenCentral())
        mavenCentral()
    }
    dependencies {
        classpath("com.moowork.gradle:gradle-node-plugin:1.2.0")
    }
}

node {
    version = "8.9.1"
    npmVersion = "5.6.0"
    download = true
}

// Register the buildAngular task
val buildAngular by tasks.registering(NpmTask::class) {
    args = listOf("run", "build")
}

// Chain dependencies: buildAngular needs npm_install first, build needs buildAngular
buildAngular.get().dependsOn(tasks.npm_install)
tasks.build.dependsOn(buildAngular)

core/build.gradle.kts #

plugins {
    java
    id("org.springframework.boot") version "2.0.0.M7"
    id("io.spring.dependency-management") version "1.0.6.RELEASE" // Compatible with Spring Boot 2.0.0.M7
}

group = "xxx.xxxxxx"
version = "0.0.1-SNAPSHOT"

java {
    sourceCompatibility = JavaVersion.VERSION_1_8
    targetCompatibility = JavaVersion.VERSION_1_8
}

buildscript {
    repositories {
        mavenCentral()
        maven { url = uri("https://repo.spring.io/milestone") } // Required for Spring Boot milestone versions
    }
    val springBootVersion = "2.0.0.M7"
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")
    }
}

tasks.jar {
    archiveBaseName.set("spring-boot-angular")
    archiveVersion.set("1.0.0")
}

// Critical: Make core's build depend on ui's build
tasks.build.dependsOn(project(":ui").tasks.build)

Note for Kotlin DSL: #

Since you're using Spring Boot 2.0.0.M7 (a milestone release), we added the Spring milestone repository to ensure Gradle can resolve all dependencies correctly.

Now running gradle build from the root will behave exactly as you want: build frontend first, then backend, resulting in a single Spring Boot jar with your Angular app included.

内容的提问来源于stack exchange，提问作者ielkhalloufi