Upload file to Nexus with plain Java

Asked Aug 17 '18 at 08:33

Active Aug 17 '18 at 08:33

Viewed 641 times

I would like to upload an artifact to Nexus from Java. Because the Java code is running in a Jira plugin I would like to avoid

including external libraries like Aether, Maven Resolver or Rest client APIs
calling external programs like Maven or Curl.

For downloading files, I used commons-io from apache which is already present if you use the Atlassian SDK. This works fine. But I am stuck in uploading. I think I need to construct a REST POST request like the following curl one

curl -v -F r=inubitdeployment -F hasPom=false -F e=jar -F g=com.test -F a=project -F v=1.0 -F p=jar -F file=@log4j.jar -u User:password http://ik-repository:8081/nexus/service/local/artifact/maven/content

but I do not know how to do this from Java.

asked Aug 17 '18 at 08:33

J Fabian Meier

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how is the jar file created? does it get created from a maven build ? – Ramanathan Ganesan Aug 17 '18 at 08:37
Use the built-in class [`URLConnection`](https://docs.oracle.com/javase/8/docs/api/java/net/URLConnection.html). – Alex Shesterov Aug 17 '18 at 08:37
@RamanathanGanesan No, it is a zip file that is created outside the Maven/Java world. – J Fabian Meier Aug 17 '18 at 08:40
@AlexShesterov Thank you. Could you give me some hints how to use form parameters and how to include the content of a file? I need to rebuild the curl command above, but I am not sure where to start. – J Fabian Meier Aug 17 '18 at 08:49
Sure; please see here: https://stackoverflow.com/a/34409142/2170192 – Alex Shesterov Aug 17 '18 at 09:17
@AlexShesterov Thank you! Any idea how to supply username and password? – J Fabian Meier Aug 17 '18 at 10:44

Upload file to Nexus with plain Java

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