Tomcat 8 integration with Maven

Question

It sounds like Eclipse (Kepler) does not have a proper plugin for Tomcat 8. I want to deploy my .war into Tomcat 8 and run it by Maven pom.xml file. Can anyone provide me step-by-step guidance or any resources, please?

My POM file:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>Test-App</groupId>
  <artifactId>test-rest</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>test-rest Maven Webapp</name>
  <url>http://maven.apache.org</url>
     <!-- Tomcat plugin -->


  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  <build>
  <plugins>
  <plugin>
    <groupId>org.apache.tomcat.maven</groupId>
    <artifactId>tomcat7-maven-plugin</artifactId>
    <version>2.2</version>
    <configuration>
     <path>/${project.build.finalName}</path>
     <update>true</update>
     <url>http:// localhost:8080/manager/text</url>
     <username>tomcat</username>
     <password>tomcatuser</password>
    </configuration>
   </plugin>
   </plugins>
    <finalName>test-rest</finalName>
  </build>
</project>

Answer 1

Just in case you use a separate Tomcat local server. If you use embedded tomcat, this is not applicable.

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

Tested on Both Jdk 7/8 & Tomcat 7/8. (Works with Tomcat 8.5 Also, will test Tomcat 9 soon)

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

Answer 2

Example of how to run your war with cargo & tomcat8

mvn clean verify org.codehaus.cargo:cargo-maven2-plugin:run -Dcargo.maven.containerId=tomcat8x -Dcargo.maven.containerUrl=http://repo1.maven.org/maven2/org/apache/tomcat/tomcat/8.5.9/tomcat-8.5.9.zip

If you want to add it to your pom

<plugin>
  <groupId>org.codehaus.cargo</groupId>
  <artifactId>cargo-maven2-plugin</artifactId>
  <version>${cargo.version}</version>
  <configuration>
    <container>
      <containerId>tomcat8x</containerId>
      <zipUrlInstaller>
          <url>http://repo1.maven.org/maven2/org/apache/tomcat/tomcat/8.5.9/tomcat-8.5.9.zip</url>
      </zipUrlInstaller>
    </container>
  </configuration>
</plugin>

Then to run you war (if your pom is a war)

mvn cargo:run

To run with debug (memory options not necessary)

<plugin>
  <groupId>org.codehaus.cargo</groupId>
  <artifactId>cargo-maven2-plugin</artifactId>
  <version>${cargo.version}</version>
  <configuration>
    <container>
      <containerId>tomcat8x</containerId>
      <zipUrlInstaller>
          <url>http://repo1.maven.org/maven2/org/apache/tomcat/tomcat/8.5.9/tomcat-8.5.9.zip</url>
      </zipUrlInstaller>
    </container>
    <configuration>
      <properties>
        <!-- <cargo.servlet.port>8200</cargo.servlet.port> -->
        <cargo.jvmargs>-Xmx2048m -Xms512m</cargo.jvmargs>
        <cargo.start.jvmargs>-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000</cargo.start.jvmargs>
      </properties>
    </configuration>
  </configuration>
</plugin>

Then you need to create a remote debug configuration in your IDE on port 8000 (port by default if nothing specified)

More commands here : https://codehaus-cargo.github.io/cargo/Maven2+plugin.html#Maven2plugin-TheCargoMavenpluginindetail

Answer 3

For Tomcat 8, you should use cargo-maven2-plugin, which works for both maven 2 and maven 3. When configuration cargo plugin, make sure that the value for Container Id is "tomcat8x". Do NOT omit the "x" after tomcat8.

Answer 4

Can you use the cargo pluygin instead, this works for me, deploying to tomcat8 :

             <plugin>
                <groupId>org.codehaus.cargo</groupId>
                <artifactId>cargo-maven2-plugin</artifactId>
                <version>1.4.8</version>
                <configuration>
                    <container>
                        <containerId>tomcat8x</containerId>
                        <home>${env.CATALINA_HOME}</home>
                    </container>
                    <configuration>
                        <type>existing</type>
                        <home>${env.CATALINA_HOME}</home>
                    </configuration>
                    <deployables>
                        <deployable>
                            <groupId>com.yourcompany</groupId>
                            <artifactId>ROOT</artifactId>
                            <type>war</type>
                            <properties>
                                <context>${project.build.finalName}</context>
                            </properties>
                        </deployable>
                    </deployables>
                    <deployer>
                        <type>installed</type>
                    </deployer>
                </configuration>
            </plugin>