Run jar from batch-file

Question

I have created an executable  jar file  How can I execute the  jar using a batch-file without mentioning a class path

User · Answer

If you want a batch file to run a jar file  make a blank file called runjava bat with the contents   java -jar  C  myjarfile jar

User · Answer

Steps  1- Create export a runnable jar file out of your project   2- Create a  bat file with the below content   Echo off  set classpath  c  jars lib       jar c  jars lib       jar c  extJars      jar   java -cp  classpath  c  apps applName yourJar jar com           MainMethod args1 args2       pause   3- set classpath is required if any external jars you are using   4- Put the  bat file and jar file in the same folder   5- As per the java -cp command give your exact jar file location and the fully qualified name of the main method and followed by argument list as per requirement

User · Answer

you shoult try this one     java -cp youJarName jar your package your MainClass

User · Answer

cd  Your File Location without inverted commas    example   cd C  Users      Desktop directory target  java -jar myjar jar   example bat file looks like this    echo OFF cd C  Users      Desktop directory target java -jar myjar jar   This will work fine

User · Answer

java -jar  C   myjarfile jar    You might need to add      to the command  Try this

User · Answer

On Windows you can use the following command   start javaw -jar JarFile jar   By doing so  the Command Prompt Window doesn t stay open

User · Answer

To run a  jar file from the command line  just use   java -jar YourJar jar   To do this as a batch file  simply copy the command to a text file and save it as a  bat    echo off java -jar YourJar jar   The  echo off just ensures that the second command is not printed

User · Answer

If double-clicking the  jar file in Windows Explorer works  then you should be able to use this   start myapp jar   in your batch file   The Windows start command does exactly the same thing behind the scenes as double-clicking a file

User · Answer

You need to make sure you specify the classpath in the MANIFEST MF file  If you are using Maven to do the packaging  you can configure the following plugins  1  maven-depedency-plugin  2  maven-jar-plugin    lt plugin gt       lt artifactId gt maven-dependency-plugin lt  artifactId gt       lt version gt   version plugin maven-dependency-plugin  lt  version gt       lt executions gt           lt execution gt               lt id gt copy-dependencies lt  id gt               lt phase gt package lt  phase gt               lt goals gt                   lt goal gt copy-dependencies lt  goal gt               lt  goals gt               lt configuration gt                   lt outputDirectory gt   project build directory  lib lt  outputDirectory gt                   lt overWriteReleases gt false lt  overWriteReleases gt                   lt overWriteSnapshots gt true lt  overWriteSnapshots gt                   lt includeScope gt runtime lt  includeScope gt               lt  configuration gt           lt  execution gt       lt  executions gt   lt  plugin gt   lt plugin gt       lt artifactId gt maven-jar-plugin lt  artifactId gt       lt version gt   version plugin maven-jar-plugin  lt  version gt       lt configuration gt           lt archive gt               lt manifest gt                   lt addClasspath gt true lt  addClasspath gt                   lt classpathPrefix gt lib  lt  classpathPrefix gt                   lt addDefaultImplementationEntries gt true lt  addDefaultImplementationEntries gt                   lt addDefaultSpecificationEntries gt true lt  addDefaultSpecificationEntries gt               lt  manifest gt           lt  archive gt       lt  configuration gt   lt  plugin gt    The resulting manifest file will be packaged in the executable jar under META-INF and will look like this   Manifest-Version  1 0 Implementation-Title  myexecjar Implementation-Version  1 0 0-SNAPSHOT Built-By  razvanone Class-Path  lib first jar lib second jar Build-Jdk  your-buildjdk-version Created-By  Maven Integration for Eclipse Main-Class  ro razvanone MyMainClass   The Windows script would look like this    echo on echo  Starting up the myexecjar application     java -jar myexecjar-1 0 0-SNAPSHOT jar   This should be complete config for building an executable jar using Maven

User · Answer

you can use the following command in the  bat file newly created      echo off call C  SWDTOOLS   PATH TO JAVA   java 1 7 64 jre bin java -jar workspace jar     Please give the path of the java if there are multiple versions of java installed in the system and make sure you specified the main method and manifest file is created while creating the jar file

User · Answer

Just the same way as you would do in command console  Copy exactly those commands in the batch file

User · Answer

inside  bat file format SET CLASSPATH  Path   -------set java classpath and give jar location-------- set classpath  CLASSPATH     lib MoveFiles jar  ---------mention your fully classified name of java class to run  which was given in jar------ Java com mits MoveFiles pause

User · Answer

There is a solution to this that does not require to specify the path of the jar file inside the  bat  This means the jar can be moved around in the filesystem with no changes  as long as the  bat file is always located in the same directory as the jar  The  bat code is   java -jar   dp0myjarfile jar      Basically  0 would expand to the  bat full path  and   dp0 expands to the  bat full path except the filename  So   dp0myjarfile jar is the full path of the myjarfile jar colocated with the  bat file     will take all the arguments given to the  bat and pass it to the Java program   see  http   www microsoft com resources documentation windows xp all proddocs en-us percent mspx mfr true

User · Answer

You can create a batch file with  bat extension with the following contents  Use java for  jar that does not have UI and is a command line application   ECHO OFF start java -jar  lt your jar file name gt  jar   Use javaw for  jar that has a UI   ECHO OFF start javaw -jar  lt your jar file name gt  jar   Please make sure your JAVA HOME is set in the environment variables

User · Answer

My understanding of the question is that the OP is trying to avoid specifying a class-path in his command line  You can do this by putting the class-path in the Manifest file    In the manifest   Class-Path  Library jar   This document gives more details   http   docs oracle com javase tutorial deployment jar downman html  To create a jar using the a manifest file named MANIFEST  you can use the following command   jar -cmf MANIFEST MyJar jar  lt class files gt    If you specify relative class-paths  ie  other jars in the same directory   then you can move the jar s around and the batch file mentioned in mdm s answer will still work

[java] Run .jar from batch-file

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