I've added a new dependency to my POM.
Is there a simple command I can run to download this dependency to my repository?
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4 Answers
Per other answer, Maven will download the dependency as part of mvn compile, mvn install etc. By default it happens in the generate-sources phase of the default lifecycle - so invoking any phase from generate-sources onward will download dependencies.
If you want to only download dependencies without doing other activities such as compilation, then it's:
mvn dependency:resolve
Or to download a single dependency:
mvn dependency:get -Dartifact=groupId:artifactId:version
If you need to download from a specific repository, you can specify that with -DrepoUrl=...
answered Dec 20, 2011 at 17:10
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2I get this error when I run that command: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.1:get (default-cli) on project standalone-pom: The parameters 'repositoryUrl' for goal org.apache.maven.plugins:maven-dependency-plugin:2.1:get are missing or invalid -> [Help 1]. Specifying -DrepositoryUrl=... doesn't work. Commented Mar 28, 2012 at 11:12
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1I think I've found the solution. The parameter should be "repoUrl" and not "repositoryUrl". Commented Mar 29, 2012 at 5:08
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1Doesn't solve the issue for me: the I run
mvn package -oright after — I get error that plugins can not be downloaded. Runningmvn dependency:resolve-pluginsdoesn't fully solve the issue either. Commented Feb 22, 2018 at 10:21 -
1@Basti dependencies will be downloaded when running Maven lifecycle phases such as
maven compileso for most people, that's all you need. But sometimes people want to download dependencies for whatever reason, without also invoking any other activities bound to any lifecycle stages. And that's what this question is for. In other words, if you're just using Maven normally, you don't need this question/answer. Commented Mar 5 at 8:50 -
1I updated the answer to first point out that it happens anyway in most lifecycle phases. When I first wrote the answer, it was below the other answer that explained this. Commented Mar 5 at 9:19
mvn install (or mvn package) will always work.
You can use mvn compile to download compile time dependencies or mvn test for compile time and test dependencies but I prefer something that always works.
answered Dec 19, 2011 at 16:23
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2Thanks, I also discovered that adding it to the pom in STS will automatically download it for you.– DJ180Commented Dec 19, 2011 at 17:35
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26@Andrew Spencer's reply is more accurate -
mvn dependency:xxxdeal with dependencies only and don't do any additional stuff - and that what the question was about. Commented Jun 1, 2016 at 10:11 -
1At times, 'mvn package' may not update dependencies. Has happened to me more than once.One needs to run 'mvn dependency:resolve' in such cases Commented Jul 7, 2016 at 15:21
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1@BinitaBharati, you can add a -U to the Maven command line to force dependency downloads. This is useful if Maven doesn't download an updated dependency because of a cache timeout. Commented May 11, 2017 at 19:08
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1@Kishan Ask a new question. Show the layout of your project (especially where the
importhappens) and whether you use a multi-module build. Commented Feb 5, 2019 at 14:42
I know it is an old question now, but for users who are using Maven plugin with Eclipse under Windows, you have two options:
If you got Maven installed as a standalone application:
You can use the following command in the
CMDunder your project path:mvn eclipse:eclipseIt will update your repository with all the missing jars, according to your dependencies in your
pom.xmlfile.If you haven't got Maven installed as a standalone application you can follow these steps on your eclipse:
Right click on the
project->Run As-- >Run configurations.Then select
mavenBuild.Then click
newbutton to create a configuration of the selected type .Click on Browse workspace then select your project and in goals specifyeclipse:eclipse
You can refer to how to run the command mvn eclipse:eclipse for further details.
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3Running eclipse:eclipse after dependency:resolve helped me see downloaded jars in eclipse, thanks! Commented Mar 22, 2017 at 9:39
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2While this answer will help the poor folk stuck with Eclipse, I strongly recommend that anyone using Eclipse find a better alternative. Especially if you're going to be using Maven. Netbeans and IntelliJ are light years ahead.– 64BitBobCommented Apr 26, 2017 at 13:20
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@64BitBob Assuming that Netbeans and IntelliJ are better than eclipse, we should always give a solution for those who use it. :)– cнŝdkCommented Apr 26, 2017 at 13:26
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I see that the plugin is not available anymore in marketplace but yes it works in Eclipse 2020 without downloading anything. I wonder if mvn eclipse:eclipse is the command sent by eclipse itself when we rightclick->Maven->Update Project...– PaoloCommented Mar 25, 2020 at 7:06
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@Paolo In my opinion they have automatically added the plugin in new versions of Eclipse, and yes I think it's the same command behind the "Update project" option.– cнŝdkCommented Mar 25, 2020 at 8:37
Pay attention to your dependency scope I was having the issue where when I invoke clean compile via Intellij, the pom would get downloaded, but the jar would not. There was a xxx.jar.lastUpdated file created. Then realized that the dependency scope was test, but I was triggering the compile. I deleted the repos, and triggered the mvn test, and issue was resolved.
mvnwto call the wrapper layer. The commands on this page work with it.