Tomcat 8 Maven Plugin for Java 8

Question

Is the tomcat7-maven-plugin working with a tomcat 8 server and java 8? I can't find any tomcat8-maven-plugin.

Serilda

Unfortunately it is not ready issues.apache.org/jira/browse/MTOMCAT-234 – Harlow

Try using Cargo See answer : #24271713 – Skaw

Could you explain what you mean in Tomcat7-maven-plugin working with a tomcat 8 server? how you make plugin to work with stand-alone server? plugin starts its own server.. – Guru

Does this answer your question? Tomcat 8 integration with Maven – Recept

Answer 1

Yes you can,

In your pom.xml, add the tomcat plugin. (You can use this for both Tomcat 7 and 8):

pom.xml

<!-- Tomcat plugin -->  
<plugin>  
 <groupId>org.apache.tomcat.maven</groupId>  
 <artifactId>tomcat7-maven-plugin</artifactId>  
 <version>2.2</version>  
 <configuration>  
  <url>http:// localhost:8080/manager/text</url>  
  <server>TomcatServer</server>    *(From maven > settings.xml)*
  <username>*yourtomcatusername*</username>  
  <password>*yourtomcatpassword*</password>   
 </configuration>   
</plugin>   

tomcat-users.xml

<tomcat-users>
    <role rolename="manager-gui"/>  
        <role rolename="manager-script"/>   
        <user username="admin" password="password" roles="manager-gui,manager-script" />  
</tomcat-users>

settings.xml (maven > conf)

<servers>  
    <server>
       <id>TomcatServer</id>
       <username>admin</username>
       <password>password</password>
    </server>
</servers>  

*** deploy/re-deploy**

mvn tomcat7:deploy OR mvn tomcat7:redeploy

Tried this on (Both Ubuntu and Windows 8/10):

• Jdk 7 & Tomcat 7
• Jdk 7 & Tomcat 8
• Jdk 8 & Tomcat 7
• Jdk 8 & Tomcat 8
• Jdk 8 & Tomcat 9

Tested on Both Jdk 7/8 & Tomcat 7/8. (Works with Tomcat 8.5 and 9)

Note:
Tomcat manager should be running or properly setup, before you can use it with maven.

Good Luck!

Outmarch

> mvn org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run INFO: Starting Servlet Engine: Apache Tomcat/7.0.47 – Maggi

that's nice only if you have tomcat on your local PC. Doesn't solve the problem for embedded tomcat – Krall

Putting the username and password in the POM is redundant and a security risk (especially if you check your code into a repository). The whole point of identifying the server by ID in the POM is so that Maven can look up the username and password in the user-specific settings file (not checked into source control). But otherwise this post was really helpful---thanks. – Grenoble

tomcat7-maven-plugin, what does 7 stands for? Is it java version or tomcat version. Can I use tomcat7-maven-plugin with Tomcat-9? – Aslam

Where can I find the following files: tomcat-users.xml - (PROJECT_NAME\target\tomcat\conf\tomcat-users.xml?), settings.xml - (???). I have maven project but still can't figure it out – Cravens

In this solution, it uses a separate apache tomcat installed and you can find in the location or path where you installed tomcat (or extracted if coming from a zip or tar.gz file). For example, C:\apache-tomcat-8\conf\tomcat-users.xml. If you are in ubuntu... example would be /opt/tomcat/conf/tomcat-users.xml – Outmarch

@BorgyManotoy "will test Tomcat 9 soon" – did you try? – Amortizement

I just did and it works... just note that when you update maven, you might lose the old configuration. Goodluck! – Outmarch

Is it possible that I deploy my app with the plugin only without the tomcat server installed? – Cottar

Yes it is possible, but I am not sure if it is advisable to deploy/run the application with just plugin, when in production mode. – Outmarch

Answer 2

Plugin run Tomcat 7.0.47:

mvn org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run

 ...
 INFO: Starting Servlet Engine: Apache Tomcat/7.0.47

This is sample to run plugin with Tomcat 8 and Java 8: Cargo embedded tomcat: custom context.xml

Maggi

Answer 3

Almost 2 years later....
This github project readme has a some clarity of configuration of the maven plugin and it seems, according to this apache github project, the plugin itself will materialise soon enough.

Glimmer

linking my answer through this url #37371427 – Unaccomplished

Answer 4

Since November 2017, one can use tomcat8-maven-plugin:

<!-- https://mvnrepository.com/artifact/org.apache.tomcat.maven/tomcat8-maven-plugin -->
<dependency>
    <groupId>org.apache.tomcat.maven</groupId>
    <artifactId>tomcat8-maven-plugin</artifactId>
    <version>2.2</version>
</dependency>

Note that this plugin resides in ICM repo (not in Maven Central), hence you should add the repo to your pluginsRepositories in your pom.xml:

<pluginRepositories>
    <pluginRepository>
        <id>icm</id>
        <name>Spring Framework Milestone Repository</name>
        <url>http://maven.icm.edu.pl/artifactory/repo</url>
    </pluginRepository>
</pluginRepositories>

Recept

tried but saw Could not transfer artifact org.apache.tomcat.maven:tomcat8-maven-plugin:pom:2.2 from/to icm (http://maven.icm.edu.pl/artifactory/repo): Authentication failed for http://maven.icm.edu.pl/artifactory/repo/org/apache/tomcat/maven/tomcat8-maven-plugin/2.2/tomcat8-maven-plugin-2.2.pom 401 Unauthorized – Null

Moreover, it is not secure to download anything on your laptop from third-party like maven.icm.edu.pl/artifactory – Lucas

Answer 5

An other solution (if possible) would be to use TomEE instead of Tomcat, which has a working maven plugin:

<plugin>
    <groupId>org.apache.tomee.maven</groupId>
    <artifactId>tomee-maven-plugin</artifactId>
    <version>7.1.1</version>
</plugin>

Version 7.1.1 wraps a Tomcat 8.5.41

Attested

Answer 6

groupId and Mojo name change Since version 2.0-beta-1 tomcat mojos has been renamed to tomcat6 and tomcat7 with the same goals.

You must configure your pom to use this new groupId:

<pluginManagement>
  <plugins>
    <plugin>
      <groupId>org.apache.tomcat.maven</groupId>
      <artifactId>tomcat6-maven-plugin</artifactId>
      <version>2.3-SNAPSHOT</version>
    </plugin>
    <plugin>
      <groupId>org.apache.tomcat.maven</groupId>
      <artifactId>tomcat7-maven-plugin</artifactId>
      <version>2.3-SNAPSHOT</version>
    </plugin>
  </plugins>
</pluginManagement>

Or add the groupId in your settings.xml

.... org.apache.tomcat.maven ....

Lorinalorinda