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<h1>Javamail API</h1>
</div>
</div>
</div>
<div class="row">
<div class="col-md-12">
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>Este es un ejemplo simple para demostrar un uso muy básico de la API Javamail.
Debería ser suficiente para iniciarse en el uso de los paquetes que maneja java para correo.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_un_servicio_rest_simple_usando_la_api_javamail">Un servicio REST simple usando la API Javamail</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Aquí vemos un endpoint RESTful muy simple que puede ser llamado para enviar un correo. No debería ser complicado modificar la aplicación
para generar otras opciones de configuración adicionales.</p>
</div>
<div class="paragraph">
<p>Este ejemplo no enviará ningún correo, pero si se cambian los parámetros para que coincidan con
su servidor de correo; entonces sí se enviará un mensaje.</p>
</div>
<div class="paragraph">
<p>Puede encontrar información más detallada en:
<a href="https://java.net/projects/javamail/pages/Home#Samples">Javamail API</a></p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-java" data-lang="java">package org.superbiz.rest;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import java.util.Date;
import java.util.Properties;
@Path("/email")
public class EmailService {
@POST
public String lowerCase(final String message) {
try {
//Create some properties and get the default Session
final Properties props = new Properties();
props.put("mail.smtp.host", "your.mailserver.host");
props.put("mail.debug", "true");
final Session session = Session.getInstance(props, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("MyUsername", "MyPassword");
}
});
//Set this just to see some internal logging
session.setDebug(true);
//Create a message
final MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress("your@email.address"));
final InternetAddress[] address = {new InternetAddress("general@email.com")};
msg.setRecipients(Message.RecipientType.TO, address);
msg.setSubject("JavaMail API test");
msg.setSentDate(new Date());
msg.setText(message, "UTF-8");
Transport.send(msg);
} catch (MessagingException e) {
return "Failed to send message: " + e.getMessage();
}
return "Sent";
}
}</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_pruebas">Pruebas</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_pruebas_del_servicio_jaxrs">Pruebas del servicio JAXRS</h3>
<div class="paragraph">
<p>La prueba usa el ApplicationComposer de OpenEJB por facilidad.</p>
</div>
<div class="paragraph">
<p>La idea es primero activar los servicios jaxrs. Esto se hace utilizando la anotación @EnableServices.</p>
</div>
<div class="paragraph">
<p>Luego creamos la aplicación simplemente retornando un objeto que representa el web.xml. Aquí, simplemente se usa para definir
la raíz del contexto, pero puede usarse para definir la aplicación REST también. Para completar la definición de la aplicación
se puede añadir la anotación @Classes, para definir el conjunto de clases a utilizar en la aplicación.</p>
</div>
<div class="paragraph">
<p>Finalmente, para hacer pruebas usamos una API cliente cxf para llamar el método post() del servicio REST.</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-java" data-lang="java">package org.superbiz.rest;
import org.apache.cxf.jaxrs.client.WebClient;
import org.apache.openejb.jee.WebApp;
import org.apache.openejb.junit.ApplicationComposer;
import org.apache.openejb.testing.Classes;
import org.apache.openejb.testing.EnableServices;
import org.apache.openejb.testing.Module;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.io.IOException;
import static org.junit.Assert.assertEquals;
@EnableServices(value = "jaxrs")
@RunWith(ApplicationComposer.class)
public class EmailServiceTest {
@Module
@Classes(EmailService.class)
public WebApp app() {
return new WebApp().contextRoot("test");
}
@Test
public void post() throws IOException {
final String message = WebClient.create("http://localhost:4204").path("/test/email/").post("Hello General", String.class);
assertEquals("Failed to send message: Unknown SMTP host: your.mailserver.host", message);
}
}</code></pre>
</div>
</div>
<div class="paragraph">
<p>#Ejecución</p>
</div>
<div class="paragraph">
<p>Correr el ejemplo es bastante simple. En el directorio "javamail-api" ejecute:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-java" data-lang="java">$ mvn clean install</code></pre>
</div>
</div>
<div class="paragraph">
<p>Lo cual debería crear una salida como la siguiente:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-java" data-lang="java">INFO - Cannot find the configuration file [conf/openejb.xml]. Will attempt to create one for the beans deployed.
INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service)
INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager)
INFO - Creating TransactionManager(id=Default Transaction Manager)
INFO - Creating SecurityService(id=Default Security Service)
INFO - Initializing network services
INFO - Creating ServerService(id=cxf-rs)
INFO - Creating ServerService(id=httpejbd)
INFO - Created ServicePool 'httpejbd' with (10) core threads, limited to (200) threads with a queue of (9)
INFO - Initializing network services
INFO - ** Bound Services **
INFO - NAME IP PORT
INFO - httpejbd 127.0.0.1 4204
INFO - -------
INFO - Ready!
INFO - Configuring enterprise application: D:\github\tomee\examples\javamail\EmailServiceTest
INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container)
INFO - Auto-creating a container for bean org.superbiz.rest.EmailServiceTest: Container(type=MANAGED, id=Default Managed Container)
INFO - Creating Container(id=Default Managed Container)
INFO - Using directory D:\windows\tmp for stateful session passivation
INFO - Configuring Service(id=comp/DefaultManagedExecutorService, type=Resource, provider-id=Default Executor Service)
INFO - Auto-creating a Resource with id 'comp/DefaultManagedExecutorService' of type 'javax.enterprise.concurrent.ManagedExecutorService for 'test'.
INFO - Configuring Service(id=comp/DefaultManagedScheduledExecutorService, type=Resource, provider-id=Default Scheduled Executor Service)
INFO - Auto-creating a Resource with id 'comp/DefaultManagedScheduledExecutorService' of type 'javax.enterprise.concurrent.ManagedScheduledExecutorService for 'test'.
INFO - Configuring Service(id=comp/DefaultManagedThreadFactory, type=Resource, provider-id=Default Managed Thread Factory)
INFO - Auto-creating a Resource with id 'comp/DefaultManagedThreadFactory' of type 'javax.enterprise.concurrent.ManagedThreadFactory for 'test'.
INFO - Enterprise application "D:\github\tomee\examples\javamail\EmailServiceTest" loaded.
INFO - Creating dedicated application classloader for EmailServiceTest
INFO - Assembling app: D:\github\tomee\examples\javamail\EmailServiceTest
INFO - Using providers:
INFO - org.apache.johnzon.jaxrs.JohnzonProvider@2687f956
INFO - org.apache.cxf.jaxrs.provider.JAXBElementProvider@1ded7b14
INFO - org.apache.johnzon.jaxrs.JsrProvider@29be7749
INFO - org.apache.johnzon.jaxrs.WadlDocumentMessageBodyWriter@5f84abe8
INFO - org.apache.openejb.server.cxf.rs.EJBAccessExceptionMapper@4650a407
INFO - org.apache.cxf.jaxrs.validation.ValidationExceptionMapper@30135202
INFO - REST Application: http://127.0.0.1:4204/test/ -&gt; org.apache.openejb.server.rest.InternalApplication
INFO - Service URI: http://127.0.0.1:4204/test/email -&gt; Pojo org.superbiz.rest.EmailService
INFO - POST http://127.0.0.1:4204/test/email/ -&gt; String lowerCase(String)
INFO - Deployed Application(path=D:\github\tomee\examples\javamail\EmailServiceTest)
DEBUG: JavaMail version 1.4ea
DEBUG: java.io.FileNotFoundException: D:\java\jdk8\jre\lib\javamail.providers (The system cannot find the file specified)
DEBUG: !anyLoaded
DEBUG: not loading resource: /META-INF/javamail.providers
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc]}
DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
DEBUG: !anyLoaded
DEBUG: not loading resource: /META-INF/javamail.address.map
DEBUG: java.io.FileNotFoundException: D:\java\jdk8\jre\lib\javamail.address.map (The system cannot find the file specified)
DEBUG: setDebug: JavaMail version 1.4ea
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth false
DEBUG SMTP: trying to connect to host "your.mailserver.host", port 25, isSSL false
INFO - Undeploying app: D:\github\tomee\examples\javamail\EmailServiceTest
INFO - Stopping network services
INFO - Stopping server services</code></pre>
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