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JEE KURZUS 5. HÉT
SETENY.JANOS@TIGRA.HU
1
Új forráskód: 

glassfish4-samples-rest
github.com/jseteny/tigra-jee-kurzus
Debug
// TODO: 1. a lap betöltésekor miért kapjuk rögtön az alábbi hibát?
(lásd TODO: 2.)
// TODO: 2. hogyan javítsuk ezt a hibát?
ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default task-63)
RESTEASY002005: Failed executing GET /messages:
org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure:
Could not find MessageBodyWriter for response object of type:
java.util.LinkedList of media type: text/html
@GET

@Produces("application/json")

public List<Message> getMessages() {

return singleton.getMessages();
}
Debug
// TODO: 2. hogyan javítsuk ezt a hibát?
ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default
task-63) RESTEASY002005: Failed executing GET /messages:
org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure:
Could not find MessageBodyWriter for response object of type:
java.util.LinkedList of media type: text/html
Debug
// TODO: 2. hogyan javítsuk ezt a hibát?
ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default
task-63) RESTEASY002005: Failed executing GET /messages:
org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure:
Could not find MessageBodyWriter for response object of type:
java.util.LinkedList of media type: text/html
@GET

@Produces("application/json")

public List<Message> getMessages() {

return singleton.getMessages();
}
Debug
// TODO: 2b honnan tudjuk, hogy ezt az osztályt betölti
// a WildFly (JBoss)?

@Stateless

@Provider

public class MessageListWriter implements
MessageBodyWriter<List<Message>> {
Debug
// TODO: 2b honnan tudjuk, hogy ezt az osztályt betölti
// a WildFly (JBoss)?

@Stateless

@Provider

public class MessageListWriter implements
MessageBodyWriter<List<Message>> {
15:26:36,877 INFO [org.jboss.as.ejb3.deployment] (MSC service
thread 1-3) WFLYEJB0473: JNDI bindings for session bean named
'MessageListWriter' in deployment unit 'deployment "message-
board.war"' are as follows:
java:global/message-board/MessageListWriter!javax.ws.rs.ext.MessageBodyWriter
java:app/message-board/MessageListWriter!javax.ws.rs.ext.MessageBodyWriter
java:module/MessageListWriter!javax.ws.rs.ext.MessageBodyWriter
java:global/message-board/MessageListWriter
java:app/message-board/MessageListWriter
java:module/MessageListWriter
INFO [org.jboss.resteasy.resteasy_jaxrs.i18n]
(ServerService Thread Pool -- 29) RESTEASY002205: Adding provider class
org.glassfish.samples.rest.messageboard.entities.MessageListWriter
from Application class
org.glassfish.samples.rest.messageboard.resources.JaxRsApplication
Debug
TODO: 4. miért van app/ a fönti URL-ben?
(http://localhost:8080/message-board/app/messages)
Debug
TODO: 4. miért van app/ a fönti URL-ben?
(http://localhost:8080/message-board/app/messages)
@ApplicationPath("/app")

public class JaxRsApplication extends Application {



@Override

public Set<Class<?>> getClasses() {
Debug
package org.glassfish.samples.rest.messageboard.entities;



// TODO: 5. JPA illetve EntityManager kezeli-e ezt az osztályt?

public class Message {
Debug
package org.glassfish.samples.rest.messageboard.entities;



// TODO: 5. JPA illetve EntityManager kezeli-e ezt az osztályt?

public class Message {
// Akkor kezelné, ha evvel ez annotációval rendelkezne

@Entity

public class Message {
Debug
Honnan jön az alábbi színes fölirat?
Debug
public class Message {





@Override

public String toString() {

return "<span class='created'>CREATED: " 

+ created + "</span> <span class='uniqueId'>ID: "

+ uniqueId 

+ "</span> <span class='message'>MESSAGE: " 

+ message + "</span>";

}

}
Honnan jön az alábbi színes fölirat?
index.html:
<style>

.created {

color: green

}



.uniqueId {

color: red

}



.message {

color: black

}

</style>

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Jee kurzus 5. het

  • 1. JEE KURZUS 5. HÉT SETENY.JANOS@TIGRA.HU 1
  • 3. Debug // TODO: 1. a lap betöltésekor miért kapjuk rögtön az alábbi hibát? (lásd TODO: 2.) // TODO: 2. hogyan javítsuk ezt a hibát? ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default task-63) RESTEASY002005: Failed executing GET /messages: org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure: Could not find MessageBodyWriter for response object of type: java.util.LinkedList of media type: text/html @GET
 @Produces("application/json")
 public List<Message> getMessages() {
 return singleton.getMessages(); }
  • 4. Debug // TODO: 2. hogyan javítsuk ezt a hibát? ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default task-63) RESTEASY002005: Failed executing GET /messages: org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure: Could not find MessageBodyWriter for response object of type: java.util.LinkedList of media type: text/html
  • 5. Debug // TODO: 2. hogyan javítsuk ezt a hibát? ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default task-63) RESTEASY002005: Failed executing GET /messages: org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure: Could not find MessageBodyWriter for response object of type: java.util.LinkedList of media type: text/html @GET
 @Produces("application/json")
 public List<Message> getMessages() {
 return singleton.getMessages(); }
  • 6. Debug // TODO: 2b honnan tudjuk, hogy ezt az osztályt betölti // a WildFly (JBoss)?
 @Stateless
 @Provider
 public class MessageListWriter implements MessageBodyWriter<List<Message>> {
  • 7. Debug // TODO: 2b honnan tudjuk, hogy ezt az osztályt betölti // a WildFly (JBoss)?
 @Stateless
 @Provider
 public class MessageListWriter implements MessageBodyWriter<List<Message>> { 15:26:36,877 INFO [org.jboss.as.ejb3.deployment] (MSC service thread 1-3) WFLYEJB0473: JNDI bindings for session bean named 'MessageListWriter' in deployment unit 'deployment "message- board.war"' are as follows: java:global/message-board/MessageListWriter!javax.ws.rs.ext.MessageBodyWriter java:app/message-board/MessageListWriter!javax.ws.rs.ext.MessageBodyWriter java:module/MessageListWriter!javax.ws.rs.ext.MessageBodyWriter java:global/message-board/MessageListWriter java:app/message-board/MessageListWriter java:module/MessageListWriter INFO [org.jboss.resteasy.resteasy_jaxrs.i18n] (ServerService Thread Pool -- 29) RESTEASY002205: Adding provider class org.glassfish.samples.rest.messageboard.entities.MessageListWriter from Application class org.glassfish.samples.rest.messageboard.resources.JaxRsApplication
  • 8. Debug TODO: 4. miért van app/ a fönti URL-ben? (http://localhost:8080/message-board/app/messages)
  • 9. Debug TODO: 4. miért van app/ a fönti URL-ben? (http://localhost:8080/message-board/app/messages) @ApplicationPath("/app")
 public class JaxRsApplication extends Application {
 
 @Override
 public Set<Class<?>> getClasses() {
  • 10. Debug package org.glassfish.samples.rest.messageboard.entities;
 
 // TODO: 5. JPA illetve EntityManager kezeli-e ezt az osztályt?
 public class Message {
  • 11. Debug package org.glassfish.samples.rest.messageboard.entities;
 
 // TODO: 5. JPA illetve EntityManager kezeli-e ezt az osztályt?
 public class Message { // Akkor kezelné, ha evvel ez annotációval rendelkezne
 @Entity
 public class Message {
  • 12. Debug Honnan jön az alábbi színes fölirat?
  • 13. Debug public class Message {
 
 
 @Override
 public String toString() {
 return "<span class='created'>CREATED: " 
 + created + "</span> <span class='uniqueId'>ID: "
 + uniqueId 
 + "</span> <span class='message'>MESSAGE: " 
 + message + "</span>";
 }
 } Honnan jön az alábbi színes fölirat? index.html: <style>
 .created {
 color: green
 }
 
 .uniqueId {
 color: red
 }
 
 .message {
 color: black
 }
 </style>