Add a dependency in Maven

Question

How do I take a jar file that I have and add it to the dependency system in maven 2   I will be the maintainer of this dependency and my code needs this jar in the class path so that it will compile

User · Answer

I d do this     add the dependency as you like in your pom       lt dependency gt           lt groupId gt com stackoverflow    lt  groupId gt           lt artifactId gt artifactId    lt  artifactId gt           lt version gt 1 0 lt  version gt   lt  dependency gt     run mvn install it will try to download the jar and fail  On the process  it  will give you the complete command of installing the jar with the error message  Copy that command and run it  easy huh

User · Answer

Actually  on investigating this  I think all these answers are incorrect  Your question is misleading because of our level of understanding of maven  And I say our because I m just getting introduced to maven   In Eclipse  when you want to add a jar file to your project  normally you download the jar manually and then drop it into the lib directory   With maven  you don t do it this way   Here s what you do    Go to mvnrepository Search for the library you want to add Copy the dependency statement into your pom xml rebuild via mvn   Now  maven will connect and download the jar along with the list of dependencies  and automatically resolve any additional dependencies that jar may have had  So if the jar also needed commons-logging  that will be downloaded as well

User · Answer

I d do this     add the dependency as you like in your pom       lt dependency gt           lt groupId gt com stackoverflow    lt  groupId gt           lt artifactId gt artifactId    lt  artifactId gt           lt version gt 1 0 lt  version gt   lt  dependency gt     run mvn install it will try to download the jar and fail  On the process  it  will give you the complete command of installing the jar with the error message  Copy that command and run it  easy huh

User · Answer

I ll assume that you re asking how to push a dependency out to a  well-known repository   and not simply asking how to update your POM   If yes  then this is what you want to read   And for anyone looking to set up an internal repository server  look here  half of the problem with using Maven 2 is finding the docs

User · Answer

I d do this     add the dependency as you like in your pom       lt dependency gt           lt groupId gt com stackoverflow    lt  groupId gt           lt artifactId gt artifactId    lt  artifactId gt           lt version gt 1 0 lt  version gt   lt  dependency gt     run mvn install it will try to download the jar and fail  On the process  it  will give you the complete command of installing the jar with the error message  Copy that command and run it  easy huh

User · Answer

Actually  on investigating this  I think all these answers are incorrect  Your question is misleading because of our level of understanding of maven  And I say our because I m just getting introduced to maven   In Eclipse  when you want to add a jar file to your project  normally you download the jar manually and then drop it into the lib directory   With maven  you don t do it this way   Here s what you do    Go to mvnrepository Search for the library you want to add Copy the dependency statement into your pom xml rebuild via mvn   Now  maven will connect and download the jar along with the list of dependencies  and automatically resolve any additional dependencies that jar may have had  So if the jar also needed commons-logging  that will be downloaded as well

User · Answer

You ll have to do this in two steps  1  Give your JAR a groupId  artifactId and version and add it to your repository  If you don t have an internal repository  and you re just trying to add your JAR to your local repository  you can install it as follows  using any arbitrary groupId artifactIds  mvn install install-file -DgroupId com stackoverflow    -DartifactId yourartifactid    -Dversion 1 0 -Dpackaging jar -Dfile  path to jarfile  You can also deploy it to your internal repository if you have one  and want to make this available to other developers in your organization  I just use my repository s web based interface to add artifacts  but you should be able to accomplish the same thing using mvn deploy deploy-file      2  Update dependent projects to reference this JAR  Then update the dependency in the pom xml of the projects that use the JAR by adding the following to the  element   lt dependencies gt               lt dependency gt           lt groupId gt com stackoverflow    lt  groupId gt           lt artifactId gt artifactId    lt  artifactId gt           lt version gt 1 0 lt  version gt       lt  dependency gt           lt  dependencies gt

User · Answer

You can also specify a dependency not in a maven repository  Could be usefull when no central maven repository for your team exist or if you have a CI server       lt dependency gt           lt groupId gt com stackoverflow lt  groupId gt           lt artifactId gt commons-utils lt  artifactId gt           lt version gt 1 3 lt  version gt           lt scope gt system lt  scope gt           lt systemPath gt   basedir  lib commons-utils jar lt  systemPath gt       lt  dependency gt

User · Answer

I ll assume that you re asking how to push a dependency out to a  well-known repository   and not simply asking how to update your POM   If yes  then this is what you want to read   And for anyone looking to set up an internal repository server  look here  half of the problem with using Maven 2 is finding the docs

User · Answer

Actually  on investigating this  I think all these answers are incorrect  Your question is misleading because of our level of understanding of maven  And I say our because I m just getting introduced to maven   In Eclipse  when you want to add a jar file to your project  normally you download the jar manually and then drop it into the lib directory   With maven  you don t do it this way   Here s what you do    Go to mvnrepository Search for the library you want to add Copy the dependency statement into your pom xml rebuild via mvn   Now  maven will connect and download the jar along with the list of dependencies  and automatically resolve any additional dependencies that jar may have had  So if the jar also needed commons-logging  that will be downloaded as well

User · Answer

I ll assume that you re asking how to push a dependency out to a  well-known repository   and not simply asking how to update your POM   If yes  then this is what you want to read   And for anyone looking to set up an internal repository server  look here  half of the problem with using Maven 2 is finding the docs

User · Answer

Actually  on investigating this  I think all these answers are incorrect  Your question is misleading because of our level of understanding of maven  And I say our because I m just getting introduced to maven   In Eclipse  when you want to add a jar file to your project  normally you download the jar manually and then drop it into the lib directory   With maven  you don t do it this way   Here s what you do    Go to mvnrepository Search for the library you want to add Copy the dependency statement into your pom xml rebuild via mvn   Now  maven will connect and download the jar along with the list of dependencies  and automatically resolve any additional dependencies that jar may have had  So if the jar also needed commons-logging  that will be downloaded as well

User · Answer

You ll have to do this in two steps  1  Give your JAR a groupId  artifactId and version and add it to your repository  If you don t have an internal repository  and you re just trying to add your JAR to your local repository  you can install it as follows  using any arbitrary groupId artifactIds  mvn install install-file -DgroupId com stackoverflow    -DartifactId yourartifactid    -Dversion 1 0 -Dpackaging jar -Dfile  path to jarfile  You can also deploy it to your internal repository if you have one  and want to make this available to other developers in your organization  I just use my repository s web based interface to add artifacts  but you should be able to accomplish the same thing using mvn deploy deploy-file      2  Update dependent projects to reference this JAR  Then update the dependency in the pom xml of the projects that use the JAR by adding the following to the  element   lt dependencies gt               lt dependency gt           lt groupId gt com stackoverflow    lt  groupId gt           lt artifactId gt artifactId    lt  artifactId gt           lt version gt 1 0 lt  version gt       lt  dependency gt           lt  dependencies gt

User · Answer

I d do this     add the dependency as you like in your pom       lt dependency gt           lt groupId gt com stackoverflow    lt  groupId gt           lt artifactId gt artifactId    lt  artifactId gt           lt version gt 1 0 lt  version gt   lt  dependency gt     run mvn install it will try to download the jar and fail  On the process  it  will give you the complete command of installing the jar with the error message  Copy that command and run it  easy huh

User · Answer

You ll have to do this in two steps  1  Give your JAR a groupId  artifactId and version and add it to your repository  If you don t have an internal repository  and you re just trying to add your JAR to your local repository  you can install it as follows  using any arbitrary groupId artifactIds  mvn install install-file -DgroupId com stackoverflow    -DartifactId yourartifactid    -Dversion 1 0 -Dpackaging jar -Dfile  path to jarfile  You can also deploy it to your internal repository if you have one  and want to make this available to other developers in your organization  I just use my repository s web based interface to add artifacts  but you should be able to accomplish the same thing using mvn deploy deploy-file      2  Update dependent projects to reference this JAR  Then update the dependency in the pom xml of the projects that use the JAR by adding the following to the  element   lt dependencies gt               lt dependency gt           lt groupId gt com stackoverflow    lt  groupId gt           lt artifactId gt artifactId    lt  artifactId gt           lt version gt 1 0 lt  version gt       lt  dependency gt           lt  dependencies gt

User · Answer

You can also specify a dependency not in a maven repository  Could be usefull when no central maven repository for your team exist or if you have a CI server       lt dependency gt           lt groupId gt com stackoverflow lt  groupId gt           lt artifactId gt commons-utils lt  artifactId gt           lt version gt 1 3 lt  version gt           lt scope gt system lt  scope gt           lt systemPath gt   basedir  lib commons-utils jar lt  systemPath gt       lt  dependency gt

User · Answer

I ll assume that you re asking how to push a dependency out to a  well-known repository   and not simply asking how to update your POM   If yes  then this is what you want to read   And for anyone looking to set up an internal repository server  look here  half of the problem with using Maven 2 is finding the docs

User · Answer

You ll have to do this in two steps  1  Give your JAR a groupId  artifactId and version and add it to your repository  If you don t have an internal repository  and you re just trying to add your JAR to your local repository  you can install it as follows  using any arbitrary groupId artifactIds  mvn install install-file -DgroupId com stackoverflow    -DartifactId yourartifactid    -Dversion 1 0 -Dpackaging jar -Dfile  path to jarfile  You can also deploy it to your internal repository if you have one  and want to make this available to other developers in your organization  I just use my repository s web based interface to add artifacts  but you should be able to accomplish the same thing using mvn deploy deploy-file      2  Update dependent projects to reference this JAR  Then update the dependency in the pom xml of the projects that use the JAR by adding the following to the  element   lt dependencies gt               lt dependency gt           lt groupId gt com stackoverflow    lt  groupId gt           lt artifactId gt artifactId    lt  artifactId gt           lt version gt 1 0 lt  version gt       lt  dependency gt           lt  dependencies gt

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