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Seam 3 on Tomcat 7

Posted by lightguard Sep 2, 2011

There have been a fair amount of comments about getting Seam 3 working correctly on Tomcat. Of course we recommend JBoss AS7, but if Tomcat is a must please use the following snippets in your project to get started.

 

pom.xml

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.jboss.seam</groupId>
                <artifactId>seam-bom</artifactId>
                <version>3.1.0.Beta2</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <dependencies>
        <!-- Use this instead of mojarra if you desire
        <dependency>
            <groupId>org.apache.myfaces.core</groupId>
            <artifactId>myfaces-api</artifactId>
            <version>2.0.6</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.myfaces.core</groupId>
            <artifactId>myfaces-impl</artifactId>
            <version>2.0.6</version>
            <scope>runtime</scope>
        </dependency>
        -->
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-api</artifactId>
            <version>2.0.4-b09</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-impl</artifactId>
            <version>2.0.4-b09</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>javax.enterprise</groupId>
            <artifactId>cdi-api</artifactId>
            <version>1.0-SP4</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.jboss.weld.servlet</groupId>
            <artifactId>weld-servlet</artifactId>
            <version>1.1.2.Final</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>3.6.7.Final</version>
            <scope>runtime</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.hibernate.javax.persistence</groupId>
            <artifactId>hibernate-jpa-2.0-api</artifactId>
            <version>1.0.1.Final</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.jboss.seam.persistence</groupId>
            <artifactId>seam-persistence</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jboss.seam.faces</groupId>
            <artifactId>seam-faces</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jboss.seam.catch</groupId>
            <artifactId>seam-catch</artifactId>
        </dependency>
    </dependencies>
    <repositories>
        <repository>
            <id>JBOSS_NEXUS</id>
            <url>http://repository.jboss.org/nexus/content/groups/public</url>
        </repository>
    </repositories>
    <build>
        <finalName>seam3-tomcat-basic</finalName>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

 

web.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="3.0"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

    <listener>
        <listener-class>org.jboss.weld.environment.servlet.Listener</listener-class>
    </listener>

    <resource-env-ref>
        <resource-env-ref-name>BeanManager</resource-env-ref-name>
        <resource-env-ref-type>
            javax.enterprise.inject.spi.BeanManager
        </resource-env-ref-type>
    </resource-env-ref>

</web-app>

 

context.xml

 

<Context>
    <Resource name="BeanManager"
              auth="Container"
              type="javax.enterprise.inject.spi.BeanManager"
              factory="org.jboss.weld.resources.ManagerObjectFactory"/>
</Context>

 

Using those files your project should be setup to use CDI, Seam 3 (Faces, Catch and Persistence) and Hibernate as the JPA provider (of course you'll need your datasource and persistence.xml file).