java为什么将具有运行时作用域的库添加到debugCompileClasspath？

6 日，9 小时 Questions & Answers 180

如果我将我的库添加到项目中，并运行命令：

> gradlew -q app:dependencies --configuration debugCompileClasspath > app_dependencies_compile.txt

为什么com.github.kolyall:utils:1.0.4lib在CompileClasspath中获得了com.安卓.support:appcompat-v7lib（和其他）和runtime作用域？如果它们的作用域应该是runtime，为什么要将它们添加到CompileClasspath

输出为：

\--- com.github.kolyall:utils:1.0.4
     +--- net.danlew:安卓.joda:2.8.2
     |    \--- joda-time:joda-time:2.8.2
     +--- com.安卓.support:appcompat-v7:28.0.0-alpha3 -> 28.0.0 (*)
     +--- com.安卓.support:design:28.0.0-alpha3
     |    +--- com.安卓.support:support-annotations:28.0.0-alpha3 -> 28.0.0
     |    +--- com.安卓.support:support-compat:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:support-core-ui:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:support-core-utils:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:support-fragment:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:transition:28.0.0-alpha3
     |    |    +--- com.安卓.support:support-annotations:28.0.0-alpha3 -> 28.0.0
     |    |    \--- com.安卓.support:support-compat:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:appcompat-v7:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:cardview-v7:28.0.0-alpha3
     |    |    \--- com.安卓.support:support-annotations:28.0.0-alpha3 -> 28.0.0
     |    \--- com.安卓.support:recyclerview-v7:28.0.0-alpha3
     |         +--- com.安卓.support:support-annotations:28.0.0-alpha3 -> 28.0.0
     |         +--- com.安卓.support:support-compat:28.0.0-alpha3 -> 28.0.0 (*)
     |         \--- com.安卓.support:support-core-ui:28.0.0-alpha3 -> 28.0.0 (*)
     +--- io.reactivex:rxjava:1.3.0
     +--- io.reactivex:rx安卓:1.2.1
     \--- javax.annotation:jsr250-api:1.0

完整输出为：

Executing tasks: [dependencies, --configuration, debugCompileClasspath]

:app:dependencies

------------------------------------------------------------
Project :app
------------------------------------------------------------

debugCompileClasspath - Resolved configuration for compilation for variant: debug
+--- com.安卓.support:appcompat-v7:28.0.0
|    +--- com.安卓.support:support-annotations:28.0.0
|    +--- com.安卓.support:support-compat:28.0.0
|    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    +--- com.安卓.support:collections:28.0.0
|    |    |    \--- com.安卓.support:support-annotations:28.0.0
|    |    +--- 安卓.arch.lifecycle:runtime:1.1.1
|    |    |    +--- 安卓.arch.lifecycle:common:1.1.1
|    |    |    |    \--- com.安卓.support:support-annotations:26.1.0 -> 28.0.0
|    |    |    +--- 安卓.arch.core:common:1.1.1
|    |    |    |    \--- com.安卓.support:support-annotations:26.1.0 -> 28.0.0
|    |    |    \--- com.安卓.support:support-annotations:26.1.0 -> 28.0.0
|    |    \--- com.安卓.support:versionedparcelable:28.0.0
|    |         +--- com.安卓.support:support-annotations:28.0.0
|    |         \--- com.安卓.support:collections:28.0.0 (*)
|    +--- com.安卓.support:collections:28.0.0 (*)
|    +--- com.安卓.support:cursoradapter:28.0.0
|    |    \--- com.安卓.support:support-annotations:28.0.0
|    +--- com.安卓.support:support-core-utils:28.0.0
|    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    +--- com.安卓.support:documentfile:28.0.0
|    |    |    \--- com.安卓.support:support-annotations:28.0.0
|    |    +--- com.安卓.support:loader:28.0.0
|    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    +--- 安卓.arch.lifecycle:livedata:1.1.1
|    |    |    |    +--- 安卓.arch.core:runtime:1.1.1
|    |    |    |    |    +--- com.安卓.support:support-annotations:26.1.0 -> 28.0.0
|    |    |    |    |    \--- 安卓.arch.core:common:1.1.1 (*)
|    |    |    |    +--- 安卓.arch.lifecycle:livedata-core:1.1.1
|    |    |    |    |    +--- 安卓.arch.lifecycle:common:1.1.1 (*)
|    |    |    |    |    +--- 安卓.arch.core:common:1.1.1 (*)
|    |    |    |    |    \--- 安卓.arch.core:runtime:1.1.1 (*)
|    |    |    |    \--- 安卓.arch.core:common:1.1.1 (*)
|    |    |    \--- 安卓.arch.lifecycle:viewmodel:1.1.1
|    |    |         \--- com.安卓.support:support-annotations:26.1.0 -> 28.0.0
|    |    +--- com.安卓.support:localbroadcastmanager:28.0.0
|    |    |    \--- com.安卓.support:support-annotations:28.0.0
|    |    \--- com.安卓.support:print:28.0.0
|    |         \--- com.安卓.support:support-annotations:28.0.0
|    +--- com.安卓.support:support-fragment:28.0.0
|    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    +--- com.安卓.support:support-core-ui:28.0.0
|    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    +--- com.安卓.support:support-core-utils:28.0.0 (*)
|    |    |    +--- com.安卓.support:customview:28.0.0
|    |    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    |    \--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    +--- com.安卓.support:viewpager:28.0.0
|    |    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    |    \--- com.安卓.support:customview:28.0.0 (*)
|    |    |    +--- com.安卓.support:coordinatorlayout:28.0.0
|    |    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    |    \--- com.安卓.support:customview:28.0.0 (*)
|    |    |    +--- com.安卓.support:drawerlayout:28.0.0
|    |    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    |    \--- com.安卓.support:customview:28.0.0 (*)
|    |    |    +--- com.安卓.support:slidingpanelayout:28.0.0
|    |    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    |    \--- com.安卓.support:customview:28.0.0 (*)
|    |    |    +--- com.安卓.support:interpolator:28.0.0
|    |    |    |    \--- com.安卓.support:support-annotations:28.0.0
|    |    |    +--- com.安卓.support:swiperefreshlayout:28.0.0
|    |    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    |    +--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    |    \--- com.安卓.support:interpolator:28.0.0 (*)
|    |    |    +--- com.安卓.support:asynclayoutinflater:28.0.0
|    |    |    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    |    |    \--- com.安卓.support:support-compat:28.0.0 (*)
|    |    |    \--- com.安卓.support:cursoradapter:28.0.0 (*)
|    |    +--- com.安卓.support:support-core-utils:28.0.0 (*)
|    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    +--- com.安卓.support:loader:28.0.0 (*)
|    |    \--- 安卓.arch.lifecycle:viewmodel:1.1.1 (*)
|    +--- com.安卓.support:support-vector-drawable:28.0.0
|    |    +--- com.安卓.support:support-annotations:28.0.0
|    |    \--- com.安卓.support:support-compat:28.0.0 (*)
|    \--- com.安卓.support:animated-vector-drawable:28.0.0
|         +--- com.安卓.support:support-vector-drawable:28.0.0 (*)
|         \--- com.安卓.support:support-core-ui:28.0.0 (*)
+--- com.安卓.support.constraint:constraint-layout:1.1.3
|    \--- com.安卓.support.constraint:constraint-layout-solver:1.1.3
\--- com.github.kolyall:utils:1.0.4
     +--- net.danlew:安卓.joda:2.8.2
     |    \--- joda-time:joda-time:2.8.2
     +--- com.安卓.support:appcompat-v7:28.0.0-alpha3 -> 28.0.0 (*)
     +--- com.安卓.support:design:28.0.0-alpha3
     |    +--- com.安卓.support:support-annotations:28.0.0-alpha3 -> 28.0.0
     |    +--- com.安卓.support:support-compat:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:support-core-ui:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:support-core-utils:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:support-fragment:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:transition:28.0.0-alpha3
     |    |    +--- com.安卓.support:support-annotations:28.0.0-alpha3 -> 28.0.0
     |    |    \--- com.安卓.support:support-compat:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:appcompat-v7:28.0.0-alpha3 -> 28.0.0 (*)
     |    +--- com.安卓.support:cardview-v7:28.0.0-alpha3
     |    |    \--- com.安卓.support:support-annotations:28.0.0-alpha3 -> 28.0.0
     |    \--- com.安卓.support:recyclerview-v7:28.0.0-alpha3
     |         +--- com.安卓.support:support-annotations:28.0.0-alpha3 -> 28.0.0
     |         +--- com.安卓.support:support-compat:28.0.0-alpha3 -> 28.0.0 (*)
     |         \--- com.安卓.support:support-core-ui:28.0.0-alpha3 -> 28.0.0 (*)
     +--- io.reactivex:rxjava:1.3.0
     +--- io.reactivex:rx安卓:1.2.1
     \--- javax.annotation:jsr250-api:1.0

(*) - dependencies omitted (listed previously)

BUILD SUCCESSFUL in 0s
1 actionable task: 1 executed

应用程序。格拉德尔

apply plugin: 'com.安卓.application'

安卓 {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.example"
        minSdkVersion 19
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "安卓.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-安卓.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.安卓.support:appcompat-v7:28.0.0-rc01'

    implementation 'com.github.kolyall:utils:1.0.4'
}

这是*。pom文件from my lib：

<?xml version="1.0" encoding="UTF-8"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.github.kolyall</groupId>
  <artifactId>utils</artifactId>
  <version>1.0.4</version>
  <packaging>aar</packaging>
  <name>utils</name>
  <description>A wrapper for utils on Android</description>
  <url>https://github.com/Kolyall/BaseUtils</url>
  <licenses>
    <license>
      <name>The Apache Software License, Version 2.0</name>
      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
    </license>
  </licenses>
  <developers>
    <developer>
      <id>nickunuchek</id>
      <name>Nick Unuchek</name>
      <email>kolyall@tut.by</email>
    </developer>
  </developers>
  <scm>
    <connection>https://github.com/Kolyall/BaseUtils.git</connection>
    <developerConnection>https://github.com/Kolyall/BaseUtils.git</developerConnection>
    <url>https://github.com/Kolyall/BaseUtils</url>
  </scm>
  <dependencies>
    <dependency>
      <groupId>net.danlew</groupId>
      <artifactId>安卓.joda</artifactId>
      <version>2.8.2</version>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>com.安卓.support</groupId>
      <artifactId>appcompat-v7</artifactId>
      <version>28.0.0-alpha3</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>com.安卓.support</groupId>
      <artifactId>design</artifactId>
      <version>28.0.0-alpha3</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>io.reactivex</groupId>
      <artifactId>rxjava</artifactId>
      <version>1.3.0</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>io.reactivex</groupId>
      <artifactId>rx安卓</artifactId>
      <version>1.2.1</version>
      <scope>runtime</scope>
      <exclusions>
        <exclusion>
          <artifactId>rxjava</artifactId>
          <groupId>io.reactivex</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>javax.annotation</groupId>
      <artifactId>jsr250-api</artifactId>
      <version>1.0</version>
      <scope>runtime</scope>
    </dependency>
  </dependencies>
</project>

共 (1) 个答案

# 1 楼答案
在Gradle 5.0之前，gradle不支持IMPROVED_POM_SUPPORT，因此默认情况下，它将所有可传递依赖项都视为compile。（不支持非罐子包装。）

Related Gradle Bug

这在Gradle 5.0中得到了修复，其中IMPROVED_POM_SUPPORT被设置为默认行为

虽然这不是强制性的，但告诉gradle提供的依赖关系是android存档使用的一个好做法
```
implementation 'com.github.kolyall:utils:1.0.4@aar'{
    transitive=true
}
```
在gradle中声明依赖关系时。注意@aar在library的版本之后

现在将gradle升级到5.0或更高版本后

compileClasspath输出为
```
+ - com.google.code.gson:gson:2.8.5
+ - org.apache.commons:commons-lang3:3.8.1
+ - io.reactivex:rxjava:1.1.0
\ - com.github.kolyall:utils:1.0.4
     \ - net.danlew:android.joda:2.8.2
          \ - joda-time:joda-time:2.8.2
```

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有 Java 编程相关的问题?

java为什么将具有运行时作用域的库添加到debugCompileClasspath？

共 (1) 个答案

# 1 楼答案