如何在Java代码中访问gradle参数 [英] How to access gradle parameter in Java code

问题描述

我有一些java的经验，我是gradle的新手，我加入了一个项目，我必须修改gradle文件。

这是我的 build.gradle file

  apply plugin：'java'
 apply插件：'idea'
 
 sourceCompatibility = 1.5 
 version ='1.0'
 dependencies {
 testCompile'org.testng：testng：6.9.10'，
'org.seleniumhq.selenium：selenium-java：2.53.0'
} 
 
 test {
 useTestNG（）
 testLogging.showStandardStreams = true 
 
 $ / code> 

然后使用以下命令从mac终端运行我的测试套件
./ build test

我想传递一个名为 environment
根据此参数的值，我需要配置我的url并为该环境运行测试。像 ./ build test环境= dev 或 ./ build test environment = qa

$ b $
$ b

在我的java代码中，我会做这样的事情。 '）{
url =my dev url;
user =我的开发者用户名
} else if（env =='qa'）{
url =my qa url;
user =我的qa用户名
}


如何通过这个参数在终端？
我在代码中使用这个参数的一小段代码会很有帮助（我的java代码没有main方法）。

注意：我已经使用过一个属性文件并实现了这种行为，但我的团队不想在代码中进行更改以设置环境。所以我不得不放弃这些改变。

解决方案

从命令行到gradle，您可以使用系统属性或项目属性。它可以是：

  ./ gradlew test -Denv = dev 
  

或

  ./ gradle test -Penv = dev 
  

上面的属性现在可以在 build.gradle ，你需要将它们传递给测试，它必须使用系统属性来完成：

  test {
 systemProperty'env'，System.properties ['env']？：'dev'
} 
  

$ b从命令行或者：

  test {
 systemProperty'env'，project。 hasProperty（'env'）？ project.env：'dev'
} 
  

在测试类中使用：

  System.getProperty（env）
  

以获得您需要的值。

I have some experience with java and I am new to gradle and I joined a project in which I have to modify the gradle file.

Here is my build.gradle file

apply plugin: 'java'
apply plugin: 'idea'

sourceCompatibility = 1.5
version = '1.0'
dependencies {
    testCompile 'org.testng:testng:6.9.10',
                'org.seleniumhq.selenium:selenium-java:2.53.0'
}

test {
    useTestNG()
    testLogging.showStandardStreams = true
}

I then run my test suite using the following command from the mac terminal ./build test

I want to pass a parameter named environment Based on this value of this parameter, I need to configure my urls and run tests for that environment. Something like ./build test environment=dev or ./build test environment=qa

And in my java code I would do something like this

if(env == 'dev') {
    url = "my dev url";
    user = "my dev user name"
} else if(env == 'qa') {
    url = "my qa url";
    user = "my qa user name"
}

How can I pass this parameter in the terminal ? A small snippet of how I can use this parameter in my code would be of great help (my java code does not have a main method).

Note: I have already used a property file and achieved this behaviour, but my team does not want to make changes in code to set the environment. So I had to discard those changes.

解决方案

From command line to gradle you can use system properties or project properties. It will be either:

./gradlew test -Denv=dev

or

./gradle test -Penv=dev

The properties above can be now read in a build.gradle, you need to pass them to tests as well, it must be done with system properties so:

test {
    systemProperty 'env', System.properties['env'] ?: 'dev'
}

for system properties from command line or:

test {
    systemProperty 'env', project.hasProperty('env') ? project.env : 'dev'
}

In test classes use just:

System.getProperty("env")

to get the value you need.

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