Tomcat con Jakarta EE

Guia:

https://www.mvc-spec.org/krazo/docs/install-servlet.htmlwww.mvc-spec.org

Dependencias

<!-- Get the API JARs for Java EE 8 -->
<dependency>
    <groupId>javax</groupId>
    <artifactId>javaee-web-api</artifactId>
    <version>8.0</version>
</dependency>

<!-- Weld  -->
<dependency>
    <groupId>org.jboss.weld.servlet</groupId>
    <artifactId>weld-servlet-core</artifactId>
    <version>3.0.5.Final</version>
</dependency>

<!-- RESTEasy -->
<dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-cdi</artifactId>
    <version>3.6.1.Final</version>
</dependency>
<dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-servlet-initializer</artifactId>
    <version>3.6.1.Final</version>
</dependency>

<!-- Bean Validation -->
<dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-validator-provider-11</artifactId>
    <version>3.6.1.Final</version>
</dependency>

<!-- MVC + Eclipse Krazo for RESTEasy-->
<dependency>
    <groupId>javax.mvc</groupId>
    <artifactId>javax.mvc-api</artifactId>
    <version>1.0.0</version>
</dependency>
<dependency>
    <groupId>org.eclipse.krazo</groupId>
    <artifactId>krazo-resteasy</artifactId>
    <version>1.1.0-M1</version>
</dependency>

Configuration files

Make sure to add an empty beans.xml file in your /src/main/webapp/WEB-INF folder:

<?xml version="1.0"?>
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_2_0.xsd"
       version="2.0" bean-discovery-mode="all"
       metadata-complete="true">

</beans>

Note that the metadata-complete isn’t strictly necessary. It works around an an issue in RESTEasy that would otherwise cause RESTEasy (and thus Krazo) to start twice.

Please also add a file called context.xml to src/main/resources/META-INF:

<?xml version="1.0" encoding="UTF-8"?>
<Context>

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

</Context>

This file context.xml is essential for the operation of the CDI in Tomcat as described in the Weld documentation.

The file to create is called web.xml and should be placed in the src/main/webapp/WEB-INF directory:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://java.sun.com/xml/ns/javaee"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

  <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>

  <!--http://docs.jboss.org/resteasy/docs/3.6.1.Final/userguide/html_single/index.html#d4e143 -->
  <context-param>
    <param-name>resteasy.injector.factory</param-name>
    <param-value>org.jboss.resteasy.cdi.CdiInjectorFactory</param-value>
  </context-param>

</web-app>