Java Gradle 绝对/相对路径
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Gradle absolute / relative path
提问by fighter-ii
I have the following problem. When I want to use a local jar in my Gradle dependencies.
我有以下问题。当我想在 Gradle 依赖项中使用本地 jar 时。
If I just add:
如果我只是添加：
compile files('libs/PushLinkAndroid-5.3.0.jar')
It doesn't work.
它不起作用。
C:\Users\Kai\AndroidStudioProjects\ProjectA\app\src\main\java\de\xyz\xxx\projecta\BaseActivity.java:21: error: package com.pushlink.android does not exist import com.pushlink.android.PushLink;
Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details. 4 errors
FAILED
FAILURE: Build failed with an exception.
What went wrong: Execution failed for task ':app:compileDebugJava'.
Compilation failed; see the compiler error output for details.
Try: Run with --stacktrace option to get the stack trace. Run with --info or >--debug option to get more log output.
BUILD FAILED
Total time: 6.543 secs
C:\Users\Kai\AndroidStudioProjects\ProjectA\app\src\main\java\de\xyz\xxx\projecta\BaseActivity.java:21: 错误：包 com.pushlink.android 不存在 import com.pushlink.android .PushLink;
注意：某些输入文件使用或覆盖已弃用的 API。注意：使用 -Xlint:deprecation 重新编译以获取详细信息。4 错误
失败的
FAILURE：构建失败，出现异常。
出了什么问题：任务“:app:compileDebugJava”的执行失败。
编译失败；有关详细信息，请参阅编译器错误输出。
尝试：使用 --stacktrace 选项运行以获取堆栈跟踪。使用 --info 或 >--debug 选项运行以获得更多日志输出。
构建失败
总时间：6.543 秒
If i add the absolute path to the Jar, the project compiles and everything works finde:
如果我将绝对路径添加到 Jar，项目将编译并且一切正常：
compile files('C:/Users/Kai/AndroidStudioProjects/ProjectA/libs/PushLinkAndroid-5.3.0.jar')
Looks like there is something wrong with the Path but how could this be when the absolute Path works fine?
看起来路径有问题，但是当绝对路径工作正常时怎么会这样？
EDIT:Build.gradle
编辑：Build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
applicationId "de.xyz.kai.migraenebook"
minSdkVersion 16
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
//compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:22.2.0'
compile 'com.jakewharton:butterknife:7.0.1'
compile project(':volley')
debugCompile 'im.dino:dbinspector:3.2.1@aar'
compile 'de.hdodenhof:circleimageview:1.3.0'
compile 'com.android.support:recyclerview-v7:+'
//compile files('C:/Users/Kai/AndroidStudioProjects/MigraeneBook/libs/PushLinkAndroid-5.3.0.jar')
compile files('libs/PushLinkAndroid-5.3.0.jar')
//compile files('libraries/PushLinkAndroid-5.3.0.jar')
//compile files('C:/Users/Kai/AndroidStudioProjects/MigraeneBook/libraries/PushLinkAndroid-5.3.0.jar')
}
NOTE: I tried different folders, the PushLink.jar is in "libs" and "libraries". It doesn't make a difference which command I use or comment out - absolute path is working, relative not.
注意：我尝试了不同的文件夹，PushLink.jar 位于“libs”和“libraries”中。我使用或注释掉哪个命令没有区别 - 绝对路径有效，相对路径无效。
回答by solar
Try this, it would include all JARs in the local repository, so you wouldn't have to specify it every time:
试试这个，它将包含本地存储库中的所有 JAR，因此您不必每次都指定它：
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
}
Also, you should know that when referencing a file via
此外，您应该知道在通过以下方式引用文件时
files("relative/path/to/a.jar")
path is evaluated relative to the buildscript this snippet is in. So when your build.gradlefile is located in /a/project/build.gradle, then the jar should be in /a/project/relative/path/to/a.jar.
In a multiproject gradle build you can put the the jar in a folder relative to the root - project and reference it in all subprojects via
buildscript这个片段是在路径相对评价。所以，当你的build.gradle文件位于/a/project/build.gradle，然后将罐子应该是/a/project/relative/path/to/a.jar。在多项目 gradle 构建中，您可以将 jar 放在相对于根项目的文件夹中，并通过以下方式在所有子项目中引用它
rootProject.files("relative/to/root/a.jar")
So take this to account and re-check if your gradle settings are correct.
因此，请考虑到这一点并重新检查您的 gradle 设置是否正确。
回答by libeasy
Your libs folder is misplaced. You have to put it under MigraeneBook/app, not directly under MigraeneBook.
你的 libs 文件夹放错了地方。你必须把它放在下面MigraeneBook/app，而不是直接放在下面MigraeneBook。
回答by Dr4gon
First off in my opinion adding manual libs - if can be avoided - is bad practice because you need to maintain the lib and path yourself.
首先，我认为添加手动库 - 如果可以避免 - 是不好的做法，因为您需要自己维护库和路径。
I had a quick look at the maven repo and it seems they don't have this specific lib there. This is what I'd expect:
我快速浏览了 Maven 仓库，似乎他们那里没有这个特定的库。这是我所期望的：
compile('com.anypackage.name.PushLinkAndroid-5.3.0.jar')
Since this is probably not up to you than rather to the developer team of https://www.pushlink.com/changelog.xhtmlit can't be helped.
由于这可能不取决于您，而取决于https://www.pushlink.com/changelog.xhtml的开发人员团队，因此无能为力。
Now to your problem: Did you start your build with --stacktrace?
现在解决您的问题：您是否使用 --stacktrace 开始构建？
From what I can gather from this
从我可以从中收集到的信息
compile files('C:/Users/Kai/AndroidStudioProjects/ProjectA/libs/PushLinkAndroid-5.3.0.jar')
you're using a Windows system. This is troublesome at some points because Gradle expect the paths to look like this:
您使用的是 Windows 系统。这在某些方面很麻烦，因为 Gradle 期望路径如下所示：
C:/Users/Kai/AndroidStudioProjects/ProjectA/libs/PushLinkAndroid-5.3.0.jar
My wild guess here is that gradle does something like this when you don't specify the path yourself:
我的猜测是，当您自己不指定路径时，gradle 会执行以下操作：
C:\Users\Kai\AndroidStudioProjects\ProjectA\libs/PushLinkAndroid-5.3.0.jar
You can verify the behaviour with this gradle task:
您可以使用此 gradle 任务验证行为：
task printBuildDir() {
def buildDir = "${buildDir}"
println buildDir
def fixedDir = buildDir.replaceAll('\\', '/')
println fixedDir
}
If my guess is correct, you got a couple of choices:
如果我的猜测是正确的，你有几个选择：
- Use the full path
- Use a gradle builtin path such as buildDir and replace the \ accordingly to the example (I'm not sure whether this works exactly like my example in dependencies tag, maybe you need to define a global variable yourself)
- Get the developers of PushLink to put this lib up to Maven Repo
- 使用完整路径
- 使用 gradle 内置路径，例如 buildDir 并根据示例替换 \ （我不确定这是否与我在依赖项标签中的示例完全一样，也许您需要自己定义一个全局变量）
- 让 PushLink 的开发者把这个库放到 Maven Repo
回答by Nishān Wickramrathna
Specifying each JAR filenames is also a posibility.
指定每个 JAR 文件名也是一种可能性。
dependencies {
compile files('lib/dependency_one.jar', 'lib/dependency_two.jar')
}
This will tell Gradle to include dependency_one.jar and dependency_two.jar during compilation. To confirm that all required JARs included in compiling configuration, you can create this helper task,
这将告诉 Gradle 在编译期间包含 dependency_one.jar 和 dependency_two.jar。要确认编译配置中包含所有必需的 JAR，您可以创建此帮助程序任务，
task listJars << {
configurations.compile.each { File file -> println file.name }
}
Then run it,
然后运行它，
$ gradle -q listJars
hibernate-core-3.6.7.Final.jar
antlr-2.7.6.jar
commons-collections-3.1.jar
dom4j-1.6.1.jar
hibernate-commons-annotations-3.2.0.Final.jar
hibernate-jpa-2.0-api-1.0.1.Final.jar
jta-1.1.jar
slf4j-api-1.6.1.jar
Read more at https://docs.gradle.org/current/userguide/declaring_dependencies.html
在https://docs.gradle.org/current/userguide/declaring_dependencies.html阅读更多
回答by tricknology
My issue was that I copied it from the Android Studio IDE itself, as is command+c on the libs from one project and command+v to the libs of the other. For some reason AS produces jar files with size zero... But hey I learned some new stuff about Gradle :)
我的问题是我从 Android Studio IDE 本身复制了它，一个项目的库上的 command+c 和另一个项目的库上的 command+v 也是如此。出于某种原因，AS 生成大小为零的 jar 文件......但是嘿，我学到了一些关于 Gradle 的新东西:)
回答by PRIHLOP
If you call URL scheme path, you can use this example:
如果你调用 URL 方案路径，你可以使用这个例子：
def path = "file://${projectDir}/ojdbc6.jar"
回答by pereckeSokSzam
Old question, but might help someone. I had the same problem, I had 2 libraries in the project root folder, and it didn't work with relative path. Add ../ before the relative path if your library is in your project's root folder.
老问题，但可能会帮助某人。我遇到了同样的问题，我在项目根文件夹中有 2 个库，但它无法使用相对路径。如果您的库位于项目的根文件夹中，则在相对路径之前添加 ../。
implementation fileTree(dir: 'libs', include: ['*.jar'])
...
implementation files('../library_name/libs/some.jar')
