I am developing a project(Spring+Hibernate+Maven+Intellij Idea for develop) without any application server such as tomcat. Now I don't know how create Web Service from my project to use it in other projcets ?! My Question is how to create Web Service from jar file that created by maven?
You can embed Jetty in your application or use Restlet which provides an embedded server.
Simply add them as dependencies and have all the resolved jars on your classpath (the maven assembly plugin may help you package your application)
Related
I need this file to authorize my API request to an external service. My app is deployed in Elastic Beanstalk with a WAR package and my file is stored in WEB-INF/lib but when I route my service to this address nothing is happening. My java classes are stored in WEB-INF/classes and its subfolders (due to packages). Should I use any absolute address instead of a relative one? Any ideas about what may be happening?
My build.xml file to generate War package with ant:
Looks like you are missing dependencies. I have never seen this issue when building a web app using Spring BOOT and Maven. As well, when building with Maven/Spring BOOT, I always ensure to use spring-boot-maven-plugin that builds an executable JAR file which includes the dependencies.
TO learn how to create a basic Java app with Dependencies and deploy to the Elastic Beanstalk, see this AWS tutorial.
Creating your first AWS Java web application
I have several web services packaged as a .war file that is build by ant. I would like to test these wars as an Eclipse Dynamic Web Service. All the examples and help I've seen are based on Eclipse building the war file but I've not seen anyone deploy an externally build war file to an Eclipse hosted Tomcat service.
I am aware that you can create a war file from a Eclipse Dynamic Web Service, but since we have multiple developers using multiple IDEs and even multiple platforms the wars need to be created via an IDE agnostic Ant script.
Wars were developed so that a service could be portable. I just want to plug one into the Eclipse Tomcat Web Server to test.
Thank you but I don't want to create the war from Eclipse (export), nor import a war into my eclipse as a project. (I know how to do these and they don't do what I want). I want to deploy a war into a Eclipse/Tomcat service to test.
Thanks for reading this.
I am trying to recreate an existing project with Maven (any IDE is ok, but mainly Netbeans), and I'm a bit confused about the best way to do this, so any help is greatly appreciated.
Currently I have an Enterprise application with the following components:
Web application (some jsps, servlets).
Ejb project
Client project (Swing application / applet)
Common project (Contains common files used by the applet and the Web app).
The problem is the packaging and dependencies, currently the Client (Applet) jar is packaged within the Web application, so that when the web app is deployed, the users can access the applet via their browser.
Is there any similar existing archetype for this, or does it require heavy customization ?
Oh, and I am using Glassfish 3.1
Thanks in advance.
So first of all, for me it looks like you need multi module maven project. In that case there will be no single archetype that will fulfill your needs.
When it comes to "the Client (Applet) jar is packaged within the Web application" you can use maven-dependency-plugin (http://maven.apache.org/plugins/maven-dependency-plugin/) and its goal:
dependency:copy - takes a list of artifacts defined in the plugin configuration section and copies them to a specified location, renaming them or stripping the version if desired. This goal can resolve the artifacts from remote repositories if they don't exist in local.
I have a Java Project, for which I'm now creating a Web interface, using a Dynamic Web Project from Eclipse. The Web project consists of a single servlet and two JSP's. Something like this:
/JavaApplication
/src
/lib
/resources
/WebApplication
/src
/Servlet.java
/WebContent
/WEB-INF
index.jsp
other.jsp
Now, I need to reference JavaApplication from WebApplication, in order to use its classes to process web requests. What's the best way to accomplish this ? My idea is to create a .jar of the JavaApplication, containing all the .class files, /resources, and /libs. In this way, I could include the .jar in the web application, and I could have a single .war file that contained the entire application.
What do you think? How is this problem typically solved ?
Note: I don't want to convert the Java Project into a Web project.
In Eclipse project properties, add the project to the Java EE Module Dependencies (Eclipse 3.5 or older)
or Deployment Assembly (Eclipse 3.6 or newer) entry in the project properties.
This way Eclipse will take care about doing the right thing to create a WAR out of this all (it will end in /WEB-INF/lib). No other configuration is necessary, even not some fiddling in Build Path.
Under Eclipse, you can declare Project References for a given project, the web application in your case. To do so, right click on your web application project, then go for Properties > Project References and select the JavaApplication project. This should allow you to call code from the JavaApplication project from the WebApplication without having to build a WAR. This is a solution for development.
For standard deployment (outside the IDE), you should indeed create a standard WAR. To do so, you'll have to package your JavaApplication as a JAR including the .class files and the files under /resources but not the libraries it depends on (JARs under /lib). These dependencies will actually end up in the WEB-INF/lib directory of the WAR, beside the JAR of your JavaApplication. These steps are typically automated with tools like Ant or Maven.
Connecting java app to web app for development :
right click on web project :
properties>project references> add the java project you want to refer
Now in properties tab of web project go to
properties>deployment assembly> add the project manually and run the app
Consider moving up to EAR level, if your web container supports that.
The tricky part with shared code is where should the common code be put. A copy pr web application? A copy in the web container? Overdoing the "share these classes" might end up in class loader problems.
If you are creating two separate web applications refactor common java code into a separate Eclipse project and refer to it from both WAR projects.
EDIT: Apparently I have misread the problem description, and thought you asked about an existing and a new web application sharing code.
If you have an Eclipse project with your application, and another with your web frontend, then you can let your application export the necessary resources which the "Export WAR" in Eclipse Java EE can wrap up in a jar file and put in WEB-INF/lib for you. You need to say this explicitly with a checkmark in Properties -> Java EE Module Dependencies for your web project. Expect you have to experiment a bit - this took me a while to learn.
Typically you would create an API interface using remote service beans from the Java application that expose the methods that you want to invoke in the web application. You would include a proxy of the API interface with your web application that calls the remote service bean in the Java application. Remember that you will need to register the remote bean in the web.xml file.
I have web application written in java using Eclipse. It has just one servlet that does some file manipulations. How do I build war file so I can easily deploy it to my remote server.
Right-click on the project, select 'Export...', then choose web -> WAR.
You should be able to use Maven to package a WAR to deploy to your remote server. It looks a little daunting, but once you create your own WAR file you should be ok, check out:
http://maven.apache.org/plugins/maven-war-plugin/usage.html
In fact you should be able to manage deployment using the Maven Glassfish plugin here:
https://maven-glassfish-plugin.dev.java.net/
That will allow you to start,stop,deploy,undeploy etc... your web app. Example here:
https://maven-glassfish-plugin.dev.java.net/examples/complete.html
Just for the record,
The default build artifact for a
NetBeans Web project is a war
The default build artifact for a simple
Java project is a jar