java – Gradle中的多个依赖项版本

我正在构建一个 java项目,使用gradle进行版本控制.

我正在从旧版本的Drools规则引擎5.5.0迁移到6.2.0.
而不是去“大爆炸”并改变everey类来使用新版本,我想在当时更改一个类,并在迁移所有类时删除旧的依赖项.

在我的gradle.build中,我设置了：

compile 'org.drools:drools-compiler:6.2.0.Final'
compile 'org.kie:kie-api:6.2.0.Final'  
compile 'org.drools:drools-core:6.2.0.Final'

compile 'org.drools:drools-core:5.5.0.Final'
compile 'org.drools:drools-compiler:5.5.0.Final'

但它只下载最新版本的库.
gradle是否支持同一个库的多个版本？

解决方法

要下载同一个库的多个版本：

repositories {
  mavenCentral()
}
  configurations {
  compile5
  compile6
}
  dependencies {
  compile5 'org.osgi:org.osgi.core:5.0.0'
  compile6 'org.osgi:org.osgi.core:6.0.0'
}
  task libs(type: Sync) {
  from configurations.compile5
  from configurations.compile6
  into "$buildDir/libs"
}

参考：How to get multiple versions of the same library

顺便说说

>上面下载两个版本,同时只编译一个版本

Gradle offers the following conflict resolution strategies:

Newest: The newest version of the dependency is used.
This is Gradle’s default strategy,and is often an appropriate choice
as long as versions are backwards-compatible.

Fail: A version conflict results in a build failure.
This strategy requires all version conflicts to be
resolved explicitly in the build script. See 07001 for
details on how to explicitly choose a particular version.

参见：23.2.3. Resolve version conflicts of Chapter 23

原文地址：https://www.jb51.cc/java/126772.html