Fist off all I'm quit new to this stuff, so sorry if I don't describe my problem properly.
I've built a simple Jax-WS Web Service for Tomcat 6 by using the Eclipse Juno wizard (dynamic web project --> add class --> new Web Service --> create WAR) and AXIS 2.
Everything works fine, but now i want to store some environment entities in the web.xml file and make them accessible from the service.
If I were using a servlet, I would call ServletConfigurator.getinitparam("name"), but how do i do it with a web service?
you might want to take a look at this website for RESTful Web Services API using Java and MySQL.It's pretty informative.
Related
I have been able to create Restful web services with JAX-RS for Tomcat. Using the Netbeans Restful web service from patterns wizard.
But I am not able to create Restfull web servicer from database with Netbeans wizard.
It miss some libraries. I add openJPA and Java EE web api 6 (over the added by the wizard). But it continues not working.
I added javaEE-TomEE 8.0 but did not work, either!
Does anybody know what have I to add to Tomcat to get JPA-Database Restful service working?
Moving to GlassFish is not an answer valid... I want to keep on Tomcat (adding the minimal)
I have made some advances...
With EclipseLink(JPA 2.0) I was able to connect MySQL in a desktop application...
Then I switched to Apache OpenJPA and I was no able to get an EntityManagerFactory...
So it seems I choose a library incomplete...
I imagine, in Tomcat, I have to choose other library than OpenJPA.
I'm trying to consume a web service within an applet.
For that objective i've tried Apache and Apache2, both with good results
but the problem is that the jar dependencies are far too fat for my application
(the jar for axis or axis2 are over 1.5MB, and the applet is less than 200KB)
So i will try consuming the web service with Apache CXF, hoping that the jars
are at least a bit smaller.
Using eclipse one creates an empty project and in the main classes implements
the applet and blah blah, but to create the web service one must use the web service
wizard.
I've used this wizard before, to consume the web service using Axis, but the moment i choose other options i get this message:
****The Apache CXF 2.x Web service runtime in Tomcat v7.0 Server does not support the client project****
What i´m missing?
I've already installed, CXF 2.x runtime, and the Tomcat 7 Server, and of course the Eclipse Web Tools.
This question How to generate web service client with Apache CXF in Eclipse Helios?
shows a very hard solution and it´s one year old!
is there any other way to consume webservices within an applet?
ksoap2 has no documentation on complex webservices, and ksoap2-android
neither
Sorry for a boring question, but any help is greatly apreciated
Apache CXF 2-x Web service runtime Tomcat Server not support client
The Apache CXF 2.x Web service runtime in Tomcat v7.0 Server does not support the client project
Answer: If you see above error during creating web service client in eclipse using Apache CXF means you are using java project to generate the client from WSDL. Latest version of JAX-WS supports Dynamic Web Module v2.5 and up. So create client using apache CXF first you need to create Dynamic web project.
Once dynamic project created then open web service client wizard to create client from WSDL and issue should be resolved.
I am tying to integrate a gwt project with my already running spring project.
i am using eclispe, and i have a Spring MVC application that receives JSON requests.
i am using the built in Tomcat to run my MVC application.
now i would like to create a new GWT project and have it communicate with my spring project with JSON.
i understand that they need to run on the same ip and port so i would not have to make cross site communication.
if i try to run my GWT application as run-as->Web application (which is the normal way for the project) on the same port as the Tomcat server i get an error that the address is already in use (which makes sense)
i tried creating a new dynamic web project and make it look the same as the GWT project. even though i am able to run the application, nothing happens, and the "entry point" is not run (i am not getting any errors or anything) it just runs the default HTML welcome file and thats it. with out any GWT.
what am i doing wrong, i am surly misunderstanding something about how all this should work.
can anyone help me out please.
You need to select that you are running on an external server:
That is a question that can't just be answered with yes or no. It all depends on your overall architecture and what you are trying to achieve.
As I said, if it is both the same application I'd recommend to integrate the Spring project into the web project. (and if that's the case, the spring project does not need to be a web project)
If the spring project is its own application and maybe running on a different server, keep them separated. Extend the spring project so it offers the functionality (via ejb or webservice) the gwt-web project needs.
Nevertheless, I recommend you do some reading about how Java EE applications should be designed and what the different tiers (client, server/service, business, etc) are for. Oracle/Sun offers some good articles. For example: http://java.sun.com/blueprints/guidelines/designing_enterprise_applications_2e/ or http://docs.oracle.com/javaee/5/tutorial/doc/bnaay.html#bnabb.
I know this isn't the best place to put this question but here it goes...
I'm using IBM Websphere Integration Developer...
I used JAX-WS runtime to create webservices from a Java test class, that instantiates severall other classes.
I did this by:
Right clicking on the Java test
class
Web Services -> Create Web Service
Service: Webshpere Process Manager v7.0 Web Service Runtime: IBM
Websphere JAX-WS
Checking "Publish the Web Service" -> Next -> Document Wrapped
Checking "Generate WSDL file into the project"
Checking "Configure WSDL service name" -> Finish
This resulted on the creating of a Delegate Java class on the same package of the test class
The creation of a WSDL file and an XSD file.
The Web Service is working great an this is solved...
No I need to have a similar process to generate a REST web service, and found out the JAX-RS API.
In order to have this I installed the "Websphere Application Server Feature Pack for Web 2.0" and thought that by doing this I would have the abilitty to use no only JAX-WS, JAX-RPC, but also JAX-RS, but this doesn't work.
I need the ability to generate REST Web Services automatically from a Java text class so is or isnt this possible?
Regards
As it turns out the automatization supplied by the usage of JAX-WS and JAX-RPC is not possible at this moment for JAX-RS API.
Despite of this, you can do this quite easily using Rational Application Developer, but not as easily on Websphere Integration Develloper.
Regards
I want to run a servlet in Eclipse. For this I have created a dynamic web project and I have deployed my servlet.java file under the WEB-INF folder. I have also added the servlet.jar file. How can I run the file as a java application?
Servlets run in a servletcontainer. Servlets are not "plain vanilla" java applications. See, they do not have a main() method! Servlets listens on HTTP requests and returns HTTP responses through the network. Running the sole servlet class as a plain vanilla Java application doesn't automagically make them to listen and react on HTTP requests.
Apache Tomcat is a popular servletcontainer. Just download and unzip it. Then in Eclipse (I assume that you already have downloaded the Eclipse Java EE version, else drop it all together and redownload the right version), go to Servers view and add the newly installed Tomcat instance. Then create a Dynamic Web Project wherein you pick the newly integrated server instance from the list. Eclipse will then automatically take the Servlet API libraries in the classpath/buildpath (thus, you do NOT need to download a random "servlet.jar file" separately yourself! this is only receipt for major trouble). Then create a Servlet class and register it in web.xml. Then deploy the project to the newly integrated server and start it. Then in your favourite webbrowser go to http://hostname:port/contextname which is usually http://localhost:8080/webprojectname.
To learn more about servlets (and Eclipse and Tomcat) I strongly recommend you to go through those tutorials. You can also search on youtube for video tutorials using the obvious keywords.
Servlets run in servlet/JSP engines, like Tomcat or Resin or Jetty. You normally don't run them outside a container.
You can certainly deploy your app to a servlet/JSP engine and start in from Eclipse. But it's the app server that you run, which then acts as the home for your servlet.
Servlets cannot be run directly as an Java app.
I recommend two approaches:
Refactor your servlet and put your "java" code (what ever generic code you want to call) in another jar that you call from both the servlet and the Java application.
Run the servlet in a container in Eclipse. See http://www.eclipse.org/jetty/
Communicate with the servlet through HttpRequest's and HttpResponse's