In the previous post, I have instructions to push test institutes to Nexus servers
1 2 3 4 5 6 | <dependency> <groupId>org.example</groupId> <artifactId>demo-nexus</artifactId> <version>1.4</version> </dependency> |
As I said before, this library is hosted on your server, only you will know. By itself, the maven will not be able to know where to download it. When you run it, the system will report an error
1 2 3 4 5 6 7 8 9 | [WARNING] The POM for org.example:demo-nexus:jar:1.4 is missing, no dependency information available [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.263 s [INFO] Finished at: 2020-10-26T15:27:35+07:00 [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal on project nexus-client: Could not resolve dependencies for project org.example:nexus-client:jar:1.0-SNAPSHOT: Failure to find org.example:demo-nexus:jar:1.4 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [Help 1] |
You need to declare so Maven can know the repository information you are using.
As you can see on the image below, the current status of Anonymous Access is off, meaning that users must be authorized to use this library (secure repository).
1 2 3 4 5 6 7 8 | <servers> <server> <id>nexus</id> <username>admin</username> <password>adminpassword</password> </server> </servers> |
In the repository section, the maven-public has type group , it’s a collection of maven-releases and maven-snapshots
So the url will take the url of the maven public as shown above
1 2 | http://35.220.140.167:8080/repository/maven-public/ |
All declaration information will be placed in settings.xml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | GNU nano 4.8 settings.xml Modified <?xml version="1.0" encoding="UTF-8"?> <settings> <mirrors> <mirror> <!--This sends everything else to /public --> <id>nexus</id> <mirrorOf>*</mirrorOf> <url>http://35.220.140.167:8080/repository/maven-public/</url> </mirror> </mirrors> <profiles> <profile> <id>nexus</id> <!--Enable snapshots for the built in central repo to direct --> <!--all requests to nexus via the mirror --> <repositories> <repository> <id>central</id> <url>http://central</url> <releases><enabled>true</enabled></releases> <snapshots><enabled>true</enabled></snapshots> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>central</id> <url>http://central</url> <releases><enabled>true</enabled></releases> <snapshots><enabled>true</enabled></snapshots> </pluginRepository> </pluginRepositories> </profile> </profiles> <activeProfiles> <!--make the profile active all the time --> <activeProfile>nexus</activeProfile> </activeProfiles> <servers> <server> <id>nexus</id> <username>admin</username> <password>adminpassword</password> </server> </servers> </settings> |
When building maven will find the repository and download the library for you.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | [INFO] Scanning for projects... [INFO] [INFO] ----------------------< org.example:nexus-client >---------------------- [INFO] Building nexus-client 1.0-SNAPSHOT [INFO] --------------------------------[ jar ]--------------------------------- Downloading from nexus: http://35.220.140.167:8080/repository/maven-public/org/example/demo-nexus/1.4/demo-nexus-1.4.pom Downloaded from nexus: http://35.220.140.167:8080/repository/maven-public/org/example/demo-nexus/1.4/demo-nexus-1.4.pom (1.8 kB at 4.5 kB/s) Downloading from nexus: http://35.220.140.167:8080/repository/maven-public/org/example/demo-nexus/1.4/demo-nexus-1.4.jar Downloaded from nexus: http://35.220.140.167:8080/repository/maven-public/org/example/demo-nexus/1.4/demo-nexus-1.4.jar (2.4 kB at 11 kB/s) [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ nexus-client --- [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ nexus-client --- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent! [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ nexus-client --- [INFO] Nothing to compile - all classes are up to date [INFO] [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ nexus-client --- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent! [INFO] skip non existing resourceDirectory /home/tledang/temp/nexus-client/src/test/resources [INFO] [INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ nexus-client --- [INFO] Nothing to compile - all classes are up to date [INFO] [INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ nexus-client --- [INFO] No tests to run. [INFO] [INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ nexus-client --- [INFO] Building jar: /home/tledang/temp/nexus-client/target/nexus-client-1.0-SNAPSHOT.jar [INFO] [INFO] --- maven-install-plugin:2.4:install (default-install) @ nexus-client --- [INFO] Installing /home/tledang/temp/nexus-client/target/nexus-client-1.0-SNAPSHOT.jar to /home/tledang/.m2/repository/org/example/nexus-client/1.0-SNAPSHOT/nexus-client-1.0-SNAPSHOT.jar [INFO] Installing /home/tledang/temp/nexus-client/pom.xml to /home/tledang/.m2/repository/org/example/nexus-client/1.0-SNAPSHOT/nexus-client-1.0-SNAPSHOT.pom [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.081 s [INFO] Finished at: 2020-10-26T15:41:43+07:00 [INFO] ------------------------------------------------------------------------ |