java 运行gradle任务时如何在命令行中传递多个参数？
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How to pass multiple parameters in command line when running gradle task?
提问by Tomas
I've got a java and groovy classes that are being run by gradle task. I have managed to make it work but I do not like the way I have to pass the parameters in command line. Here is how I do it currently via command line: gradle runTask -Pmode"['doStuff','username','password']"
my build.gradle code which takes these parameters looks like this:
我有一个由 gradle 任务运行的 java 和 groovy 类。我设法让它工作，但我不喜欢我必须在命令行中传递参数的方式。这是我目前通过命令行执行的操作：gradle runTask -Pmode"['doStuff','username','password']"
我的 build.gradle 代码采用这些参数，如下所示：
if (project.hasProperty("mode")) {
args Eval.me(mode)}
and then I use my arguments/parameters in my java code as follows:
然后我在我的 java 代码中使用我的参数/参数，如下所示：
String action = args[0]; //"doStuff"
String name = args[1]; .. //"username"
I was wondering is there a way to pass the parameters in a better way such as:
我想知道有没有办法以更好的方式传递参数，例如：
gradle runTask -Pmode=doStuff -Puser=username -Ppass=password
and how to use them in my java classes.
以及如何在我的 Java 类中使用它们。
回答by AdamSkywalker
JavaExecmay be the way to go. Just declare a task and pass project parameters to java app:
JavaExec可能是要走的路。只需声明一个任务并将项目参数传递给 java 应用程序：
task myExecTask(type: JavaExec) {
classpath = sourceSets.main.runtimeClasspath
main = 'com.project.MyApplicationMainClass'
args project.getProperty('userName') + ' ' + project.getProperty('password');
}
To run it, simply write gradle myExecTask -PuserName=john -Ppassword=secret
要运行它，只需编写 gradle myExecTask -PuserName=john -Ppassword=secret
回答by Shaun
This is working for me:
这对我有用：
task myExecTask(type: JavaExec) {
classpath = sourceSets.main.runtimeClasspath
main = 'com.project.MyApplicationMainClass'
args(user, pass); // no need to access user and pass via project.getProperty()
}
- args needs to be built as a List of Strings for java main to use.
- args now should be in the form of : ['myusername', 'mypassword']
- args 需要构建为字符串列表供 java main 使用。
- args 现在应该采用以下形式：['myusername', 'mypassword']
回答by frknio
this is the task I had to create for passing arguments through gradle task
这是我必须为通过 gradle 任务传递参数而创建的任务
task cucumber() {
dependsOn assemble, compileTestJava
doLast {
javaexec {
systemProperties = [
usr: project.getProperty('usr'),
pwd: project.getProperty('pwd')
]
main = "io.cucumber.core.cli.Main"
classpath = configurations.cucumberRuntime + sourceSets.main.output + sourceSets.test.output
args = ['--plugin', 'pretty', '--glue', 'location to step def', 'location to feature files']
}
}
}
in order to execute test
$ gradle cucumber -Pusr=<username> -Ppwd=<password>
为了执行测试
$ gradle cucumber -Pusr=<username> -Ppwd=<password>
to access args in your code System.getProperty("usr"), System.getProperty("pwd")
访问代码中的参数 System.getProperty("usr"), System.getProperty("pwd")
