How to use Gradle Wrapper
In this tutorial, we will show you how to create Gradle wrapper for your project and how to use it.
What is Gradle wrapper?
The Gradle wrapper allows you to run a Gradle task without requiring that Gradle is installed on your system.
The Gradle wrapper allows you to run a Gradle task without requiring that Gradle is installed on your system.
1. Create a Gradle Wrapper
1.1 Declares a wrapper task.
build.gradle
task wrapper(type: Wrapper) {
gradleVersion = '2.10' //we want gradle 2.10 to run this project
}
1.2 Run the wrapper task with gradle wrapper
$ gradle wrapper
:wrapper
BUILD SUCCESSFUL
1.3 The following files will be created, remember to add these files and folders to your version control system (e.g GitHub or Bitbucket).
|-gradle |--- wrapper |--- gradle-wrapper.jar |--- gradle-wrapper.properties |-gradlew |-gradlew.bat
Review the gradlew
file, a unix shell script to run the Gradle task.
2. How to use Gradle Wrapper?
2.1 Assume your Gradle project along with the Gradle wrapper files are added to GitHub, and someone wants to clone your project and try to run it without installing Gradle on their system.
2.2 They can download the project and run it with gradlew
, read comments for self-explanatory :
$ git clone https://github.com/mkyong/spring4-mvc-gradle-annotation-hello-world.git
$ cd spring4-mvc-gradle-annotation-hello-world
# wait, build? we don't have Gradle install yet? No problem, gradlew will handle it.
$ ./gradlew build
# first time, download the gradle 2.10..
# download project dependencies
# run the gradle build task
# ...wow, we run a Gradle task without installing Gradle!
# try run jettyRun task
$ ./gradlew jettyRun
16:16:21 INFO Jetty 9.2.10.v20150310 started and listening on port 8080
16:16:21 INFO spring4 runs at:
16:16:21 INFO http://localhost:8080/spring4
Press any key to stop the server.
$ ./gradlew task
Done.
Thanks, very clear to get the concept.
Why I always get this error after execute ./gradlew build
Exception in thread “main” java.util.zip.ZipException: error in opening zip file
Out of date – deprecated in Gradle 5
trash tutorial. big trash. blur