Java Gradle总是从任何任务中打印

我有一个简单的

build.gradle

（或者任何

build.gradle

，任务有

println

）

现在，当我运行

$gradlebuild

时，我总是看到任务正在执行或打印输出

task1 starting
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:jar
:assemble
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
:check UP-TO-DATE
:build

BUILD SUCCESSFUL

Total time: 1.291 secs

---

为什么任务内部总是有来自

println

的输出？

如果您有以下代码：

task task1 {
    println 'task1 starting'
}

您正处于任务的配置阶段。此阶段在脚本评估期间运行。若要在任务执行时打印某些内容，则需要为任务添加操作

它看起来像：

task task1 << {
   println 'task1 action'
}

---

第55章中的任务1。构建生命周期

---

重复：在我看来，这两个问题都在问“为什么println总是打印？”。问题的目的是不同的，但是潜在的问题是关于相同的Gradle行为。我认为这两个问题都不应重复，但我认为任何后续读者都将受益于评论中的交叉链接。

task task1 << {
   println 'task1 action'
}

// in `settings.gradle`
// println 'This is executed during the initialization phase.'

println 'This is executed during the configuration phase.'

task configure {
    println 'This is also executed during the configuration phase.'
}

task execute << {
    println 'This is executed during the execution phase.'
}

This is executed during the initialization phase.
This is executed during the configuration phase.
This is also executed during the configuration phase.
:help

Welcome to Gradle 1.10.

To run a build, run gradle <task> ...

To see a list of available tasks, run gradle tasks

To see a list of command-line options, run gradle --help

BUILD SUCCESSFUL

Total time: 1.882 secs