Java 如何在Maven项目中包含本地jar文件
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How to include local jar files in Maven project
提问by cometta
I do not want to install a few jars into a Maven repository (both local/remote). In particular I have a few jar files located in
我不想将几个 jars 安装到 Maven 存储库（本地/远程）中。特别是我有几个 jar 文件位于
c:\work\projects\myapp\src\main\webapp\WEB-INF\lib\test.jar
c:\work\projects\myapp\src\main\webapp\WEB-INF\lib\test2.jar
How to include them into my project when open/edit with NetBeans?
使用 NetBeans 打开/编辑时如何将它们包含到我的项目中？
采纳答案by The Alchemist
Have you considered adding those two JARs as systemdependencies? e.g.,
您是否考虑过将这两个 JAR 添加为system依赖项？例如，
<project>
...
<dependencies>
<dependency>
<groupId>sun.jdk</groupId>
<artifactId>tools</artifactId>
<version>1.5.0</version>
<scope>system</scope>
<systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>
</dependencies>
...
</project>
Just a word of note, this is NOT recommended and should be used very sparingly, if ever.
请注意，这是不推荐的，如果有的话，应该非常谨慎地使用。
回答by Stephen C
In the past, I've done this by creating a "local" repository directory tree in the project itself, and referring to it in the POM by declaring a local repository with a project relative path.
过去，我通过在项目本身中创建一个“本地”存储库目录树，并通过声明具有项目相对路径的本地存储库在 POM 中引用它来完成此操作。
But that is a hack. (Maybe not so hacky - per @Pascal's comment. I'm still a bit of a Maven novice, despite using it for a year or so.)
但这是一个黑客。（也许不是那么老套 - 根据@Pascal 的评论。尽管使用了一年左右，我仍然是一个 Maven 新手。）
回答by E L Rayle
Although it works to use the systemPath reference, it is better to create a local repository. And fortunately, it is easy to do.
尽管使用 systemPath 引用可以工作，但最好创建一个本地存储库。幸运的是，这很容易做到。
Creating a local repository holding jars not available in a public repository
创建包含公共存储库中不可用的 jar 的本地存储库
NOTE: I use Eclipse, so some of the instructions are specific to Eclipse. Most are easily generalizable.
注意：我使用 Eclipse，所以一些说明是特定于 Eclipse 的。大多数很容易推广。
Assumptions
假设
The jar was created by Maven in another project with the following...
<groupId>com.foo</groupId> <artifactId>test</artifactId> <version>0.1.1</version> <packaging>jar</packaging>
该 jar 是由 Maven 在另一个项目中使用以下内容创建的...
<groupId>com.foo</groupId> <artifactId>test</artifactId> <version>0.1.1</version> <packaging>jar</packaging>
In Project (that wants to access the jars)
在项目中（想要访问罐子）
- Create repo directory just off the project base directory
- For each jar to be accessed locally...
- add directories for each level of the groupID (ex. /repo/com/foo)
- add jar name (aka artifactId) without the version (ex. /repo/com/foo/test)
- add directory for the version of the jar (ex. /repo/com/foo/test/0.1.1)
- put the jar in that directory (ex. /repo/com/foo/test/0.1.1/test-0.1.1.jar)
- 在项目基本目录外创建 repo 目录
- 对于要在本地访问的每个 jar...
- 为 groupID 的每个级别添加目录（例如 /repo /com/foo）
- 添加不带版本的 jar 名称（又名 artifactId）（例如 /repo/com/foo /test）
- 添加 jar 版本的目录（例如 /repo/com/foo/test /0.1.1）
- 将 jar 放在该目录中（例如 /repo/com/foo/test/0.1.1 /test-0.1.1.jar）
In pom.xml (for the project that wants to access the jars)
在 pom.xml （对于想要访问 jars 的项目）
Define the local repository
<repositories> <repository> <id>data-local</id> <name>data</name> <url>file://${project.basedir}/repo</url> </repository> </repositories>Add the dependency on the local jar. From our example above, this would be...
<dependency> <groupId>com.foo</groupId> <artifactId>test</artifactId> <version>0.1.1</version> </dependency>
定义本地存储库
<repositories> <repository> <id>data-local</id> <name>data</name> <url>file://${project.basedir}/repo</url> </repository> </repositories>添加对本地 jar 的依赖。从我们上面的例子来看，这将是......
<dependency> <groupId>com.foo</groupId> <artifactId>test</artifactId> <version>0.1.1</version> </dependency>
Rebuild
重建
- Rt click pom.xml -> Run as -> Maven build
- Rt 点击 pom.xml -> Run as -> Maven build
回答by Eric
None of the other answers worked for me. I had to run a slightly different command...
其他答案都不适合我。我不得不运行一个稍微不同的命令......
mvn deploy:deploy-file -Durl=file:///path/to/yourproject/repo/ -Dfile=mylib-1.0.jar -DgroupId=com.example -DartifactId=mylib -Dpackaging=jar -Dversion=1.0
See complete steps in this article: https://devcenter.heroku.com/articles/local-maven-dependencies
请参阅本文中的完整步骤：https: //devcenter.heroku.com/articles/local-maven-dependencies
