How can I download a specific Maven artifact in one command line?

You could use the maven dependency plugin which has a nice dependency:get goal since version 2.1. No need for a pom, everything happens on the command line.

To make sure to find the dependency:get goal, you need to explicitly tell maven to use the version 2.1, i.e. you need to use the fully qualified name of the plugin, including the version:

mvn org.apache.maven.plugins:maven-dependency-plugin:2.1:get \
    -DrepoUrl=url \
    -Dartifact=groupId:artifactId:version

UPDATE: With older versions of Maven (prior to 2.1), it is possible to run dependency:get normally (without using the fully qualified name and version) by forcing your copy of maven to use a given version of a plugin.

This can be done as follows:

1. Add the following line within the <settings> element of your ~/.m2/settings.xml file:

<usePluginRegistry>true</usePluginRegistry>

2. Add the file ~/.m2/plugin-registry.xml with the following contents:

<?xml version="1.0" encoding="UTF-8"?>
<pluginRegistry xsi:schemaLocation="http://maven.apache.org/PLUGIN_REGISTRY/1.0.0 http://maven.apache.org/xsd/plugin-registry-1.0.0.xsd"
xmlns="http://maven.apache.org/PLUGIN_REGISTRY/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <plugins>
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-dependency-plugin</artifactId>
      <useVersion>2.1</useVersion>
      <rejectedVersions/>
    </plugin>
  </plugins>
</pluginRegistry>

But this doesn't seem to work anymore with maven 2.1/2.2. Actually, according to the Introduction to the Plugin Registry, features of the plugin-registry.xml have been redesigned (for portability) and the plugin registry is currently in a semi-dormant state within Maven 2. So I think we have to use the long name for now (when using the plugin without a pom, which is the idea behind dependency:get).

With the latest version (2.8) of the Maven Dependency Plugin, downloading an artifact from the Maven Central Repository is as simple as:

mvn org.apache.maven.plugins:maven-dependency-plugin:2.8:get -Dartifact=groupId:artifactId:version[:packaging[:classifier]]

where groupId:artifactId:version, etc. are the Maven coordinates

An example, tested with Maven 2.0.9, Maven 2.2.1, and Maven 3.0.4:

mvn org.apache.maven.plugins:maven-dependency-plugin:2.8:get -Dartifact=org.hibernate:hibernate-entitymanager:3.4.0.GA:jar:sources

(Thanks to Pascal Thivent for providing his wonderful answer in the first place. I am adding another answer, because it wouldn't fit in a comment and it would be too extensive for an edit.)

Here's what worked for me to download the latest version of an artifact called "component.jar" with Maven 3.1.1 in the end (other suggestions did not, mostly due to maven version changes I believe)

This actually downloads the file and copies it into the local working directory

From bash:

mvn dependency:get \
    -DrepoUrl=http://.../ \
        -Dartifact=com.foo.something:component:LATEST:jar \
        -Dtransitive=false \
        -Ddest=component.jar \

Regarding how to get the artifact binary, Pascal Thivent's answer is it, but to also get the artifact sources jar, we can use:

mvn dependency:get -Dartifact=groupId:artifactId:version:jar:sources

e.g.

mvn dependency:get -Dartifact=junit:junit:4.12:jar:sources

This works because the artifact parameter actually consists of groupId:artifactId:version[:packaging][:classifier]. Just the packaging and classifier are optional.

With jar as packaging and sources as classifier, the maven dependency plugin understands we're asking for the sources jar, not the artifact jar.

Unfortunately for now sources jar files cannot be downloaded transitively, which does make sense, but ideally I do believe it can also respect the option downloadSources just like the maven eclipse plugin does.

One could use dependency:copy (http://maven.apache.org/plugins/maven-dependency-plugin/copy-mojo.html) which takes a list of artifacts defined in the plugin configuration section and copies them to a specified location, renaming them or stripping the version if desired. This goal can resolve the artifacts from remote repositories if they don't exist in either the local repository or the reactor.

Not all the properties of the plugin could be used in maven CLI. The properties which have "User Property:" property defined could be specified. In the below example I am downloading junit to my temp folder and stripping the vesion from the jar file.

mvn org.apache.maven.plugins:maven-dependency-plugin:2.8:copy -Dartifact=junit:junit:4.11 -DoutputDirectory=/tmp -Dmdep.stripVersion=true

where artifact=junit:junit:4.11 is the maven coordinates. And you specify artifcat as groupId:artifactId:version[:packaging[:classifier]]

(Thanks to Pascal Thivent for providing his https://stackoverflow.com/a/18632876/2509415 in the first place. I am adding another answer)

The usage from the official documentation:

https://maven.apache.org/plugins/maven-dependency-plugin/usage.html#dependency:get

For my case, see the answer below:

mvn dependency:get -Dartifact=$2:$3:$4:$5 -DremoteRepositories=$1 -Dtransitive=false
mvn dependency:copy -Dartifact=$2:$3:$4:$5 -DremoteRepositories=$1 -Dtransitive=false -DoutputDirectory=$6

#mvn dependency:get -Dartifact=com.huya.mtp:hynswup:1.0.88-SNAPSHOT:jar -DremoteRepositories=http://nexus.google.com:8081/repository/maven-snapshots/ -Dtransitive=false
#mvn dependency:copy -Dartifact=com.huya.mtp:hynswup:1.0.88-SNAPSHOT:jar -DremoteRepositories=http://nexus.google.com:8081/repository/maven-snapshots/ -Dtransitive=false -DoutputDirectory=.

Use the command mvn dependency:get to download the specific artifact and use the command mvn dependency:copy to copy the downloaded artifact to the destination directory -DoutputDirectory.

one liner to download latest maven artifact without mvn:

curl -O -J -L  "https://repository.sonatype.org/service/local/artifact/maven/content?r=central-proxy&g=io.staticcdn.sdk&a=staticcdn-sdk-standalone-optimizer&e=zip&v=LATEST"

maven command: if you use maven, you can use dependency:copy to download the artifact to the local folder.

mvn dependency:copy -Dartifact=groupId:artifactId:version[:packaging[:classifier]] -DoutputDirectory=<your local path>. -U

Refer: https://maven.apache.org/plugins/maven-dependency-plugin/copy-mojo.html

Curl command:

# guide: https://help.sonatype.com/repomanager3/rest-and-integration-api/search-api

# https://msnexus.xxxx.com/service/rest/v1/search/assets?sort=version&repository=public&maven.groupId=<groupId>&maven.artifactId=<>&maven.baseVersion=1.46.0-SNAPSHOT&maven.extension=war

download_artifact() {
    local host_url=$1
    local group_id=$2
    local artifact_id=$3
    local artifact_type=$4
    local artifact_version=$5
    local final_name=$6
    local location=$7

    local search_version=$5
    local prerelease="false"
    if [[ "${artifact_version}" == *"SNAPSHOT" ]]; then
        prerelease="true"
    fi
    if [[ "${artifact_version}" == "latest"* ]]; then
        search_version="*"
    fi
    assets_url="${host_url}/service/rest/v1/search/assets?sort=version&repository=public&maven.groupId=${group_id}&maven.artifactId=${artifact_id}&maven.baseVersion=${search_version}&prerelease=${prerelease}&maven.extension=${artifact_type}"

    echo "INFO: Assets url: $assets_url"

    download_url=$(curl "$assets_url" -H "accept: application/json" | jq -r ".items[0].downloadUrl // empty")

    echo "INFO: Downloading artifact from url: $download_url"

    if [[ -z "$download_url" ]]; then
        echo "ERROR: Artifact not exists in Nexus, please check your version [${version}] for [${service_name}]"
        exit 1
    fi

    pre_dir=$(pwd)

    if [[ ! -d "$location" ]]; then
        mkdir -p $location
    fi

    cd $location

    curl -o "${final_name}.${artifact_type}" "$download_url"

    cd $pre_dir
}

To copy artifact in specified location use copy instead of get.

mvn org.apache.maven.plugins:maven-dependency-plugin:3.1.2:copy \
  -DrepoUrl=someRepositoryUrl \
  -Dartifact="com.acme:foo:RELEASE:jar" -Dmdep.stripVersion -DoutputDirectory=/tmp/

Here's an example to get ASM-7 using Maven 3.6:

mvn dependency:get -DremoteRepositories=maven.apache.org -Dartifact=org.ow2.asm:7.0:sources:jar

Or you can download the jar from here: https://search.maven.org/search?q=g:org.ow2.asm%20AND%20a:asm and then

mvn install:install-file -DgroupId=org.ow2.asm -DartifactId=asm -Dversion=7.0 -Dclassifier=sources -Dpackaging=jar -Dfile=/path/to/asm-7.0.jar

You can also do this using docker in PowerShell:

docker run -it --rm -v ${PWD}:/build/source -v ${HOME}/.m2:/build/.m2 --net=host aemdesign/centos-java-buildpack:jdk8 /bin/bash --login -c 'mvn dependency:get -Dmaven.repo.local=/build/.m2/repository -DrepoUrl=https://repo1.maven.org/maven2 -Dartifact=io.prometheus.jmx:jmx_prometheus_javaagent:LATEST -Ddest=/build/source/jmx_prometheus_javaagent.jar'

or in bash:

docker run -it --rm -v $PWD:/build/source -v $HOME/.m2:/build/.m2 --net=host aemdesign/centos-java-buildpack:jdk8 /bin/bash --login -c 'mvn dependency:get -Dmaven.repo.local=/build/.m2/repository -DrepoUrl=https://repo1.maven.org/maven2 -Dartifact=io.prometheus.jmx:jmx_prometheus_javaagent:LATEST -Ddest=/build/source/jmx_prometheus_javaagent.jar'

The command:

mvn install:install-file 

Typically installs the artifact in your local repository, so you shouldn't need to download it. However, if you want to share your artifact with others, you will need to deploy the artifact to a central repository see the deploy plugin for more details.

Additionally adding a dependency to your POM will automatically fetch any third-party artifacts you need when you build your project. I.e. This will download the artifact from the central repository.

LATEST is deprecated, try with range [,)

./mvnw org.apache.maven.plugins:maven-dependency-plugin:3.1.1:get \  
-DremoteRepositories=repoId::default::https://nexus/repository/maven-releases/ \
"-Dartifact=com.acme:foo:[,)"