I have completed my Java web application and trying to deploy to the web host for hosting. But how do I 'compile everything'? I tried to build the project and landed with the following files.
projectname.properties, projectbname.iml, projectname.xml,
module_projectname.xml
Do I just place them on the public hosted folder and its done? Or is there any guide. I keep coming across guides which assumes I know how to build. None seems to elaborate how to actually build and what files I need for hosting.
I am familiar with a website and where to place the html/css/js files. But this being a Java web app with all sorts of files, its confusing me. Please help.
Project Structure
Project Structure
I would suggest use heroku to deploy your web app. Heroku is very simple cloud based hosting quite useful for beginners and is easy to start with.
First read Getting Started with Java on Heroku carefully and then
follow the below instruction to deploy your app.
Deploying from IntelliJ IDEA
Related
i have searched for various solutions in need of creating a simple java class with a deploy method. This deploy method should get the path of the war file and deploy it in app engine google account. i tried to get the jars of it and use these methods.. but i didnt had any details for help even after searching. so any good suggestions? on how to deploy it directly in google app engine
You mean programmatically deploy to GAE?
Sure, it's possible. Take a look at AppCfg source and extract classes relevant to deploy.
I've been doing some research into how to make Apple flat packages from a Java webapp. There doesn't seem to be much out on the subject. I found a website that details the contents of a flat package but it seems like a bit of a project to start from scratch. Anyone have any experience building PKGs? Does anyone know of any libraries to aid in the process?
EDIT:
It seems I may not have been clear in my request. My goal is to have users go to a website that requires them to enter some information. After they've entered their information my code would create a PKG for them that contains some information about them. For example, maybe the postinsall script would run the command "say 'Hello USERNAME_THEY_ENTERED'". Silly example but it's the general idea. The user would then be able to run the PKG and the install that takes place would be customized with their information.
Why would you want a web application in a pkg file? What servlet container accepts pkg files?
Web applications are meant to be packaged as WAR or EAR files (since we are talking about Java) and to be deployed on a servlet container like tomcat, jetty, websphere, glassfish, jboss, ... running on a server. The client computer then uses a browser to access to web application on the server.
PKG files can be compared to MSI files. These are meant to facilitate the installation of software (or libraries) on a client. For that the website you linked seems to have valid information.
I am not sure why you want to do that for a webapp but we have done it for a standalone Java App (which actually was a collection of webapps including the server).
If this works for you, try to prepare your application.app folder using jarBundler. It provides an Ant task that will make things much easier.
If this does not work for you (as unfortunately was the case for us), then you have to prepare the application.app folder by hand and script adding the java resources. Start from an existing app, generated with Jar Bundler for instance, and adjust accordingly.
Then you need to install XCode and get PackageMaker. This app has a GUI but you really need to read the doc. The biggest issue we have met is that you cannot script the package build process.
I need to add that, unless you need to run some post-install scripts, building a DMG is probably much easier.
I'm new to IBM Rational Application Developer. I'm running RAD 7.5.5 and want to use GWT as the front end for an application I'm writing. What I'm asking is basically if someone has had experience with this, and if so, explain in a few simple steps how it's done or maybe refer me to an example somewhere online where this is explained.
Deploying to WebSphere is no different then deploying to any other Application Server, or even a servlet container. You just need to compile your GWT app and package it in a WAR/EAR file. You deploy the application and have whatever HTML file you want the GWT app to appear in, include the nocache.js.
If you generate your app either using the command line script, through Eclipse, or with Maven, this HTML file will be generated for you. GWT is server agnostic, unless you want to use GWT-RPC, in which case you need a Java backend. You could run GWT on a plain Apache server if you wanted.
I just needed to create a little interface for a project. So I decided to take given code and to run it on Google AppEngine. My problem is, that I'm experienced in JavaScript and got some basic knowledge of Java, but I got no clue how a Java webapp has to be structured. I started Eclipse and installed the AppEngine-addon, downloaded Rhino and env.js (which is necessary for the bunch of code I need to run) but then found me in the situation of sitting on this files not knowing where to put them.
It would be great if someone could tell me in which directory to put which files for Rhino (I assume it's "/war/WEB-INF/lib/"), how to add the env.js-file and how to access all these files inside the .java-file which is the index of the app.
I don't know about app engine in particular, but I have had good success using Rhino jsc to compile script files which extend the Servlet API. The end result is a nice WAR file which you can deploy in any servlet container, and perhaps App Engine as well. See here for my relevant blog post about this technique, and here for a sample Eclipse project.
Have you taken a look at this tutorial on running Rhino on GAE?
It's a link from the official "Will it play in App Engine?" thread.
http://www.appenginejs.org/ may be of interest as well.
so now i think i have learned all basics and terminology for java. but what i don´t know is how to code and display a web page with Netbeans in Java.
the most tutorials contains lots of talks about different technologies "Java uses Java Beans, JSP and servlets" and so on. Where can i find short practical tutorials that actually teach me where to code what and then compile and where to put all the files (war, jar, ear..) in Glassfish to be able to see the output from a Web browser. Simples things that makes one understand all these different "layers" which are just classes using classes. Feels like i never get to know how i can put up a web server with Java cause I can´t find this kind of tutorials.
Would be great if someone could send some links to such practical stuff.
Thanks.
This is the first such document I found: http://www.java-tips.org/java-tutorials/tutorials/introduction-to-java-servlets-with-netbeans.html
More:
http://netbeans.org/kb/docs/web/quickstart-webapps.html
http://blogs.oracle.com/jonasdias/entry/webservices_with_jsp_on_netbeans
http://www.fuzzylizard.com/archives/2005/09/18/628/
http://cit.wta.swin.edu.au/cit/subjects/CITP0014/tutorials/netbeans/tomcat/Running_Tomcat_from_Netbeans.html
http://supportweb.cs.bham.ac.uk/documentation/java/servlets/netbeans-webapps/
I even found a small ebook on this (PDF!) http://www.comp.dit.ie/bduggan/Courses/projects/Getting%20Started%20with%20Tomcat%20&%20NetBeans.pdf
How do I code and display a web page with NetBeans in Java?
Let's go! Fire up NetBeans. I'm using NetBeans 6.7.1 with the Java EE stuff installed, and I've got a GlassFish installed and tied up, so I don't have to care about that stuff. Your setup might differ in the details.
Do a File->New Project, and pick "Java Web" from the categories. Select "Web Application" and hit Next. Enter a project name and tweak the location, if liked. Hit Next. The next page should have a server selection drop-down; as hinted above, mine has "GlassFIsh v2.1" selected. That's fine - as long as NetBeans can interact with a Java application server of some sort, this crash course will run okay.
Make a note of the "context path" - this will be based on the project name, and basically forms the base of the URL at which your application will reside. Hit Next. Ignore the next page, for now, which talks about various frameworks, and hit Finish.
Churn, churn. You should eventually see your web project created. It's a very simple application which contains a single JSP file, and that will be open in the main editor. It's got a bunch of HTML in it, and some JSP syntax.
Take a look at the project structure. You've got a "web pages" folder which contains a WEB-INF directory, and an index.jsp file. That's the same file you're looking at. WEB-INF is a standard directory which contains the metadata used to deploy your application, and also the compiled classes that power it.
The only thing you should need to do now, in order to get to the original objective, is to hit the big ol' Run button, or right-click on the project and select "Run" from the menu. NetBeans will compile, and then fire up your application server and deploy the application to it. Finally, your web browser should pop open a new tab with the classic "Hello, world" page in it.
At this point, what do you actually have? You've got an empty web project with a single JSP file in it. You could customise it, but that's maybe not very exciting. What you're really looking at is a basic framework in which you can apply your learning of JSP and of servlets as you get to grips with them.
How to proceed with said knowledge transfer? I recommend a decent book or two. The one I used to get going was "Beginning JSP, JSF and Tomcat Web Development: From Novice to Professional" (Zambon, Guilio; Apress; ISBN 1-59059-904-7), which has a decent beginner's guide to how JSP and servlets work together, and a handy reference guide for the former.
As soon as possible, you're going to want to migrate away from raw servlets and JSP to tying them together in a slightly more flexible way using one of the frameworks I skipped over earlier. I'm not going to tell you which one to learn; there are several pretty decent ones. Try Spring MVC, or Struts. Once again, I'd suggest getting a decent book.
I would start by taking a look at servlets and JSP. I found this book helpful when I read it: Head First Servlets and JSP
Netbeans comes with many sample projects, create a few and browse the source code.
A already working sample is always a good starting-point for your coding.
If you're also interested in using Eclipse, which makes it very simple to create and deploy web applications here's a nice tutorial - WTP Tutorials
Hi to start code and setting up web server with java follow the following procedure.
First you need to install Apache-Tomcat or Jetty any web container or servlet container.
And you have set the classpath of servlet-api.jar file.
Next you will have to save your web-page code stuff in web-apps folder of tomcat.In web-apps folder there you have to create a web-inf folder in which web.xml file is stored.And after writing servlet and jsp programs the compiled class files are stored in classes folder of web-inf folder.JSP files are stored along with WEB-INF folder.
You have to keep all the jar files in LIB folder of classes folder.
The web container will take care of initalizing servlet, loading class using inti method.Using service method it will create two objects request and response.
The Java EE stack is quite a mouthful. I suggest you just look at writing a Web Application (WAR), and deploy it to Tomcat.
Unfortunately doing a full WAR-file deployment is rather tedious so you generally want some help from your IDE or the web container.
The easiest place to start is probably installing and starting Tomcat and then fiddle with the files in the file system. There is an example application.