Gradle入门

[waltcow]

Installing Gradle

1. java development kit

java -version
java version "1.8.0_151"
Java(TM) SE Runtime Environment (build 1.8.0_151-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode)

2. install via homebrew

brew install gradle

3. verifying installation

> gradle -v

------------------------------------------------------------
Gradle 6.6.1
------------------------------------------------------------

Build time:   2020-08-25 16:29:12 UTC
Revision:     f2d1fb54a951d8b11d25748e4711bec8d128d7e3

Kotlin:       1.3.72
Groovy:       2.5.12
Ant:          Apache Ant(TM) version 1.10.8 compiled on May 10 2020
JVM:          14.0.1 (Oracle Corporation 14.0.1+14)
OS:           Mac OS X 10.14.6 x86_64

Building Java Applications Sample

1. Create a project folder

create a folder for the new project and change directory into it.

$ mkdir demo
$ cd demo

2. Run the init task

$ gradle init

Select type of project to generate:
  1: basic
  2: application
  3: library
  4: Gradle plugin
Enter selection (default: basic) [1..4] 2

Select implementation language:
  1: C++
  2: Groovy
  3: Java
  4: Kotlin
  5: Scala
  6: Swift
Enter selection (default: Java) [1..6] 3

Select build script DSL:
  1: Groovy
  2: Kotlin
Enter selection (default: Groovy) [1..2] 1

Select test framework:
  1: JUnit 4
  2: TestNG
  3: Spock
  4: JUnit Jupiter
Enter selection (default: JUnit 4) [1..4]

Project name (default: demo):
Source package (default: demo):


BUILD SUCCESSFUL
2 actionable tasks: 2 executed

project structure

├── gradle // Generated folder for wrapper files
│   └── wrapper
│       ├── gradle-wrapper.jar
│       └── gradle-wrapper.properties
├── gradlew  // Gradle wrapper start scripts
├── gradlew.bat 
├── settings.gradle // Settings file to define build name and subprojects
└── app
    ├── build.gradle // Build script of app project
    └── src
        ├── main
        │   └── java // Default Java source folder
        │       └── demo
        │           └── App.java
        └── test // Default Java test source folder
            └── java 
                └── demo
                    └── AppTest.java

Creating New Gradle Builds