How to build applications using Gradle in the Eclipse IDE

We know that tools such as Ant and Maven are often used when building systems. For beginners, they are still too complex and it still takes time to get started. Today I will give you an idea to quickly understand how to use Gradle to build applications.

1. Download and configure Gradle

Gradle Inc. is the company that developed the Gradle framework and provides Gradle tool support for the Eclipse IDE. This tool can create and allow Gradle projects to be imported into the Eclipse IDE. It also allows running Gradle tasks and monitoring its execution.

First of all, we need to download Gradle. The download path is Gradle. The specific configuration is clearly written on the official website. You can follow the instructions step by step according to your own operating system. . Here I take Windows 10 as an example.

After downloading, unzip it to the C:\Gradle directory. Then, you need to configure the environment variables. The entire configuration process is as follows:

Next, verify whether the environment variables are It is effective and correct. Open the cmd command line and execute the gradle -v command. If the following information appears, the configuration is effective.

Then, you need to configure the gradle path into Eclipse, as shown below.

Finally, install the plug-in that integrates Gradle with Eclipse. Eclipse calls the Gradle plug-in Buildship. The source code for Buildship is available on Github.

2. Install the Eclipse Gradle (Buildship) tool plug-in

2.1 Install in the Eclipse Marketplace

The easiest way to install the Eclipse Gradle tool is to use the Marketplace in Eclipse . The version of Eclipse on my machine is: Neon.3 Release (4.6.3). The specific steps are:

In the pop-up window, enter "Buildship" and press Enter to search,

Then click Install and agree to the agreement. After the installation is completed, you need to restart Eclipse.

2. 2 Install through the Eclipse Update Manager

You can also click on the menu bar on Eclipse "Help▸Install New Software" menu to install the Gradle tool.

Take my Eclipse 4.6 (Neon) version as an example. You can use http://download.eclipse.org/releases/neon to install it. As follows.

Then click the Next button to proceed with the subsequent installation.

3. Create a new Gradle project

The Eclipse Gradle tool provides a wizard for creating Java-based Gradle projects. You can access it via the "File New Other..." menu item.

Click Next,

Click the 'Next >' button to configure the local Gradle installation path.

Continue with the Next > button and see the preview information of the new project:

Click the Finish button Create project. This will trigger the gradle init --type java-library command and import the project.

The created projectDirectory structure is as follows:

4. Import an existing project into Eclipse

You can also import the existing Gradle Import the project into Eclipse. Select the FileImport...GradleGradle Project menu item.

After clicking the Next> button, you need to specify the root directory of the Gradle project.

Click the Next > button and specify Gradle runtime settings.

After that, the project import preview is displayed.

Finally Finish ends the import.

5. Update Gradle build path and project conversion

5.1 Update Eclipse with the latest modifications using Gradle build files

If the build.gradle file is updated, Eclipse will not automatically Update classpath. Select Gradle Refresh Gradle Project to update.

5.2 Add Gradle support to existing Eclipse projects

To convert a Java project to a Gradle project, right-click on the project that needs to be converted and select Gradle Add Gradle Nature,

If the initial Gradle file is not generated, you can run the gradle init task.

6. Use Gradle task View

After successfully importing the Gradle project, the project will be displayed under the Gradle task view.

You can run the selected Gradle task by right-clicking on a Gradle task in the Gradle task view.

You can view the running results in the Gradle Executions view and Console view.

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