How to run a maven created jar file using just the command line

Question

I need some help trying to run the following maven project using the command line   https   github com sarxos webcam-capture  the webcam-capture-qrcode example is the one I m trying to run  I have it running using an the Eciplse IDE but need to move it over to just using the command line  I have the jar s created by maven    I m trying   java -classpath   webcam-capture target webcam-capture-0 3 10-SNAPSHOT jar  com github sarxos webcam WebcamQRCodeExample         but I keep getting the   Exception in thread  main  java lang NoClassDefFoundError  com github sarxos webcam WebcamQRCodeExample Caused by  java lang ClassNotFoundException  com github sarxos webcam WebcamQRCodeExample

User · Answer

1st Step  Add this content in pom xml   lt build gt       lt plugins gt           lt plugin gt               lt groupId gt org apache maven plugins lt  groupId gt               lt artifactId gt maven-shade-plugin lt  artifactId gt               lt version gt 2 1 lt  version gt               lt executions gt                   lt execution gt                       lt phase gt package lt  phase gt                       lt goals gt                           lt goal gt shade lt  goal gt                       lt  goals gt                       lt configuration gt                           lt transformers gt                               lt transformer                                 implementation  org apache maven plugins shade resource ManifestResourceTransformer  gt                               lt  transformer gt                           lt  transformers gt                       lt  configuration gt                   lt  execution gt               lt  executions gt           lt  plugin gt       lt  plugins gt   lt  build gt    2nd Step   Execute this command line by line   cd  go to myApp mvn clean mvn compile  mvn package java -cp target myApp-0 0 1-SNAPSHOT jar go to myApp select file to execute

User · Answer

Use this command    mvn package   to make the package jar file  Then  run this command    java -cp target artifactId-version-SNAPSHOT jar package Java-Main-File-Name   after mvn package command  Target folder with classes  test classes  jar file and other resources folder and files will be created    type your own artifactId  version and package and java main file

User · Answer

I am not sure in your case  But as I know to run any jar file from cmd we can use following command   Go up to the directory where your jar file is saved   java -jar  lt jarfilename gt  jar   But you can check following links  I hope it ll help you   Run Netbeans maven project from command-line   http   www sonatype com books mvnref-book reference running-sect-options html

User · Answer

Just use the exec-maven-plugin    lt build gt       lt plugins gt           lt plugin gt               lt groupId gt org codehaus mojo lt  groupId gt               lt artifactId gt exec-maven-plugin lt  artifactId gt               lt version gt 1 2 1 lt  version gt               lt configuration gt                   lt mainClass gt com example Main lt  mainClass gt               lt  configuration gt           lt  plugin gt       lt  plugins gt   lt  build gt    Then you run you program   mvn exec java

[java] How to run a maven created jar file using just the command line

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