I have a pretty large web application that I am converting from struts1 to struts2. I have been looking into everything I need to change in the jsp files but I also have many java files that I assume will need to be changed as well. In my login.jsp file there is a directory included that has a Header.java file. In this file as well as many others, these two lines are at the top:
import org.apache.struts.config.MessageResourcesConfig;
import org.apache.struts.util.MessageResources;
What do I need to change these lines to in order to make it work with struts2?
MessageResourceConfig and MessageResource are Struts1 classes to handle the message resources files. You can find some info about this functionality in many tutorials and examples, like this: http://www.laliluna.de/articles/posts/struts-message-resources-tutorial.html. In Struts2 the same functionality is handled automatically by the framework, but to know how it works and what you should do I suggest to you to take a look at the official website of Struts2:
https://struts.apache.org/getting-started/message-resource-files.html.
As you'll see in the official documentation you won't need anymore the two imports.
Related
I have a spring boot application that makes use of a library, and both use swagger to generate documentation. Right now what I see when I access the swagger main page is a combo box with two options, one for the main application, and another one for the library. So far so good. The problem is that we decided to serve the documentation of the main application in a static file, but the library should remain as it is now, annotation-based.
Does anyone know how to mix a static file and an annotation-based one?
If it is not possible, I can generate the yaml file of the library and serve it as a static one as well, it should be ok, but in this case, how can I serve both files and show them in a combo so the users can choose which one they want to visualize?
Thanks in advance for any help.
I'm working on learning JSP and the Play framework, and I understand that it runs on Scala and renders views based on templates, but what if I just want to use plain HTML rather than scala templates?
The situation I'm in is that I'm designing the site to match a visual template, so I'm using Dreamweaver to build the html files. I really like Play framework though, so I'd like to continue using it. So, what are my options here?
I don't get. Play's views are not just nice html files, of course you can (or even should) use your favorite tools for design part, anyway you have to also learn how to include a dynamic parts in it.
Of course you can use DreamWeaver for that task as it has feature for editing source code. But I can ensure you from my own experience, that there are better tools for every-day work with Play's views than DW.
You can also use plain HTML in your /public folder however in this scenario you won't be able to make it dynamic, so it has no sense, as you can create the pages without any framework - just using static files created with DW.
In general words: you need to verify your needs, cause from your question I read: "I like Play framework, anyway I don't want to use it for its job..."
After-comments edit:
You don't have to make views dynamic. If you won't pass any arguments into the view and will put there pure HTML it will be 'relatively cheap' way for displaying static pages as well. Just you need to remeber to leave first line of the file empty. So you don't need to use File index = new File... instead just put your bare HTML code into ie: app/views/staticContact.scala.html and then use an action:
public static Result staticContact(){
return ok(views.html.staticContact.render());
}
On the quite other hand, last time I was wondering if it wasn't better to put HTML code of the static pages into the DB, in such case you could create an editing page, where you could change HTML without redeploying the application. All what you will need it was just fetching HTML from DB and displaying it in one generic view. For better performance you can use included Cache implementation.
GET / controllers.Assets.at(path="/public/html", file="index.html")
This is working for play 2.0.1 for /public/html/index.html file
I have a web page with lots of text.Is there any means through which I can translate it,without using resource bundle(which involves using properties files,requiring key value pairs for all words.)?
Thanks for your precious time.
An alternative is to create separate views for each language. So a "mypage_en_US.html" for the US-english version and a "mypage_en_GB.html" for the british-english version. This gives you total control over the text and layout but has the drawback of possible code duplication if there is any logic in your view.
Wicket uses pretty clean views which should hardly contain any logic so this works pretty well there.
Just be innovative here. If you are getting shitty copy pase work. Write a program to convert the properties file and then use that properties file using google translate api, but yeah end of the day you will have to go with properties file.
I belive there would be other way too using google translate api again, would love to hear that myself too
Depends on your web framework.
For example, Wicket can apply I18N on webpages in two ways :
- using I18N files and resourcesbundles, with placeholders where required in the page
- by having totally separate pages, one for each language. The page template itself is postfixed with the locale, much like property files : HomePage_en.html, HomePage_fr.html, etc.
Other web frameworks may have similar features. If you're using raw JSP/Servlets, I'm afraid you're pretty much on your own.
But it's totally possible to implement your own templating system. For example, you could use a set of Freemarker templates, and load the one that matches the desired locale.
I'm trying to put PrettyTime into JSP as a tag. Found this page - http://www.ke-cai.net/2010/03/formatting-time-with-prettytime-jsp-tag.html - as the only source of the tag. But I've never used Maven, so I can't figure out how to get that prettyTime.tag file along with the source code. Can someone suggest something or should I just go ahead and write a tag myself?
From what I can see in that article, all Maven will be doing is pulling in the java library. You can do this manually, and include it in your standard way (ie, in your "lib").
He seems to be telling you then how to write your own jsp tag (suggesting you call it "prettyTime.tag"), and then how to reference it.
Side note, you may want to consider reading up on and adopting Maven, its quite a powerful build management helper for java web app development.
That's just a blog of someone else. It's available by the manufacturer's site: http://ocpsoft.com/prettytime/
It's however a JSF tag, which means that you have to install and use JSF as well.
Instead of using a server-side component, you can use javascript. See the jQuery timeago plugin
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.