Java 如何使用Gradle将参数传递给main方法？
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How to pass parameters to main method using Gradle?
提问by Xelian
I have to pass two arguments to my main method. My build script is
我必须将两个参数传递给我的 main 方法。我的构建脚本是
// Apply the java plugin to add support for Java
apply plugin: 'java'
// In this section you declare where to find the dependencies of your project
repositories {
// Use 'maven central' for resolving your dependencies.
mavenCentral()
}
// In this section you declare the dependencies for your production and test code
dependencies {
compile 'com.example:example-core:1.7.6'
}
task main(type: JavaExec, dependsOn: classes) {
description = 'This task will start the main class of the example project'
group = 'Example'
main = 'com.example.core.Example'
classpath = sourceSets.main.runtimeClasspath
}
If I try:
如果我尝试：
gradlew main doc.json text.txt
Then an error occured.
然后发生了错误。
org.gradle.execution.TaskSelectionException: Task 'doc.json' not found in root project
How can I pass arguments to my main method command line easily?
如何轻松地将参数传递给我的主方法命令行？
采纳答案by Erik Pragt
You should use use -P as listed in the Gradle command line documentation.
您应该使用 Gradle命令行文档中列出的 -P 。
For example, the following will work:
例如，以下将起作用：
gradlew main -Parg1=doc.json --project-prop arg2=text.txt
And you access them in your Gradle script like this:
您可以像这样在 Gradle 脚本中访问它们：
println "$arg1 $arg2"
回答by juliocesarfx
task run(type: JavaExec) {
main = "pkg.MainClass"
classpath = sourceSets.main.runtimeClasspath
args = ["arg1", "arg2"]
}
回答by Ravikumar
task run1(type: JavaExec) {
main = "pkg.mainclass"
classpath = sourceSets.main.runtimeClasspath
args = ["$arg1","$arg2",...]
}
//I have named as run1 it can be any task name
While invoking the gradle script:
c:\> gradle run1 -Parg1="test123" -Parg2="sss"
