Gradle [graphic installation and use demonstration]

One 、 Related introduction

        Gradle It's a good build tool , The reason for using it is ：

• Less configuration dependent code , Don't like maven equally xml Too much  
• Package, compile, test and release , And it's easy to use  
• Use custom tasks to complete the functions you want

Two 、 install

         Download address http://services.gradle.org/distributions/  , Download the version you need , Here's what I downloaded gradle-4.7-bin.zip. After downloading, unzip it to the directory you want , Then set the environment variable ：

 

stay cmd View in mode , The following information shows that the installation was successful ：

Then we can configure in the environment variable gradle Default warehouse address （ and maven Not quite the same. ）：

3、 ... and 、IED The use of

1、IDEA

         Use idea Create a web Of Gradle project

 

 

Then package and run the project ：

 

double-click war

 

After packing war The file will be ：

 

And then put war Put the corresponding tomcat directory , There's no more explanation here .

2、Eclipse

        eclipse Install plug-ins by yourself , The plug-in path is ：http://download.eclipse.org/buildship/updates/e46/releases/2.x/ .

Four 、 Problem specification

1、 explain build.gradle and settings.gradle

         First, a project contains group、name、version .settings.gradle It is used to manage multiple projects , It contains the project name

 

stay build.gradle in ,apply It is an application plug-in , Such as ：

 

Here we use java and war Plug in for ,dependencies It is used to declare what the project depends on jar

 

What's explained here is , We rely on junit Of jar. These include complile（ Compile time ）runtime（ Runtime ）testCompile（ Test compile time ）testRuntime（ Test run time ）.repositories It's a warehouse gradle They will go to the warehouse in order from top to bottom jar 

 

Here we default to a maven Central warehouse , from gradle The address we see in the source code is like this

Here you can configure , among mavenLocal() Use local maven Warehouse ;mavenCentral() Use maven Central warehouse . Use a fixed address , Alibaba cloud can be used here （maven {url 'http://maven.aliyun.com/nexus/content/groups/public/'}） The image download speed of will be faster , Then you can also use the private server address inside the company .

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