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.
Related
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.
I'm just starting out with Spring MVC having been trying to pickup Java(Web) for the few months.
I'm sure what I'm trying to achieve is very simply, but I can't find a solution that really works.
I'd like to include another controller/view inside a view. This could be a menu, or some other dynamically generated content. For example, let's say in a side bar of an application I need to display a list of categories. I don't want to have to retrieve these categories in every controller/view that needs to use them. I'd like to include another controller/view into the main page view so that this content can be placed in multiple views but managed by a single piece of code.
ASP.NET MVC has something called PartialViews, and most PHP frameworks seem to offer this kind of functionality, but I can't find anything like this in spring.
The closest I've come to resolving this issue is to use the jsp:include tag, which does work, infact it's almost the solution, but it generates errors in Eclipse because obviously Eclipse can't locate the path, as it's a spring RequestMapping i.e. /include/categories rather than a direct link to a physical file.
The other solution is to use Javascript to dynamically load content into the sidebar, but I don't want to do that.
Is there a 'correct' way to do this, or is there a way to supress the errors generated by eclipse for the jsp:include tag?
If the content your are including is static and you don't have a lot of different pages, your approach with including jsps is ok. Otherewise, look at the templating frameworks like Tiles or Thymeleaf.
I am incredibly confused here. I've been using Google Appengine for our webserver and it's been working out great so far, but I had a request to have the webpages load without the .html extension. I've been doing some reading and see that I need to create an app.yaml file to map the url to something else? This is what I have in my file so far:
application: company-website
version: 1
runtime: java
threadsafe: true
handlers:
- url: /about
script: about.html
I've been trying to read how to do this on their documentation site but I can't seem to find anything referencing how to remove the extension and still have it point to the right html file. Can anyone help me out? Can I just do this in the appengine-web.xml file, also? It seems like I could just do it in there without creating an app.yaml file.
Any help would be appreciated. Thanks!
edit: tried some more things.. Tried moving the file I'm trying to remove the extension on to its own folder like so:
/root
-index.html
-/about
-index.html
And this was OK, when I typed my domain.com/about/ it appears to be working but when I typed domain.com/about it does not. Very frustrating.
In an ideal world we would have the option to configure a rewrite like apache's mod_rewrite in the underlying web server. Sadly it is not possible to configure a rewrite on such a level.
I searched around a bit and found that the most common answer for a rewrite is to user either UrlRewriteFilter or to wire up the servlets yourself. Both options are explained in
Catch-all URL rewrite on Google App Engine (Java)
Pretty URLs in Google App Engine
Both work in the same way and will require the app to serve static content through app engine. This will result in app engine instance hours and slower responses since all you static files move from Google's content delivery network (cdn) to your bottleneck app. The aproaches possibly also require you to deploy your static files as resource instead (How-To configure static-files and resources), at least that is how i have done this before.
These are the 'pure Java' options you have. The app.yaml approach that Josep Valls described will work in with Java on App Engine. The main question here is if the app.yaml configuration is low level enough to be a rewrite that google recognizes in its cdn, or whether you'll still burn through instance hours because all content is served through instances.
The documentation tells us:
For efficiency, App Engine stores and serves static files separately
from application files. Static files are not available in the
application's file system. If you have data files that need to be read
by the application code, the data files must be application files, and
must not be matched by a static file pattern.
Since this comes right before the section that explains how to configure the static file pattern handlers one should assume that the configuration of such handlers will not break the logic that is mentioned above - that is
stores and serves static files separately from application files
Whether this assumption is correct is an easy experiment which i shall conduct given time and report my findings here.
These are all the existing options I could find and know of. If anyone knows more on this topic, please comment / respond.
EDIT (7.12.2015)
My maven target appengine:devserver is completely oblivious to settings in the app.yaml. I'll have to experiment with this during one of the next deployment phases or use mvn gcloud:run.
... later that day:
Rewriting the URL via Servlet (like with Paul Tuckey's UrlRewriteFilter) does not work for static files. You would have to deploy the files as resource files. Static files reside somewhere else and will not be found if forwarded to by a servlet. At least that's how i understand it.
In Python and Go you can use regular expression matching in your url handlers; if Java also uses app.yaml you could probably do this:
- url: /(about|other|sections)$
static_files: \1\.html
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 am trying to build a search engine using java and the lucene API as part of a project. For the last step, we plan to build a web UI (a local host would do) for the same. Are there UI softwares/plugins for eclipse which will allow me to call the functions present in the java classes?
Essentially I would want to have a search box and a search key, pressing which will throw up the search results(which is computed from the java program). javascript cannot call java code I understand. So using that is eliminated?
Any suggestions on what to use will be greatly appreciated. I have pretty poor knowledge in front end design!
Cheers!
AB
If all you have is a simple screen with a entry field and a button and you simply want to return an html table. I would go with a servlet and two jsps. Your servlet can call your search engine and then have the jsp format the data into the table. If you do not know web apis this is probably the easiest entry.
I think, If your using JAVA, that you should look into JSF.
It's a rather easy to maintain and work with library for just the uses you describe.
I recommend these tutorials to get you started: http://www.coreservlets.com/JSF-Tutorial/jsf2/#Tutorial-Intro
There are lots of options to achieve this.
you can create web-ui using jsp.
I have also created same type of project using Lucene, here i have used spring mvc.i have provided all the back-end process as REST api which any web-ui can use.
Please do not look into JSF; it is an overengineered pile for your task.
Sure you can call your java code from javascript, you can make it really simple with something like DWR.
However, for your project I would suggest GWT as then you only deal with Java and it will generate javascript, html and css for you.
For your project you dont really need an "enterprise" level framework like spring or a fullstack JavaEE, you could keep it real oldschool with only JSPs and html/javascript. However thats a bit too flaky for my taste, so go with GWT.
With GWT you basically set it up, define your module, entrance point (look at the hello world), and then you add a layout to your page like something to place the searchbox into and the resultbox to. Then you call your other Java code and classes from there like you normally would.
I would suggest you to use GWT in your application because GWT enables you to call java methods and it will also convert Javascript and css for your Java modules after GWT compile.
GWT reference :- http://code.google.com/webtoolkit/gettingstarted.html
If you're going to use GWT, you could aslo check Vaadin.
Creating a search UI is really simple, and the tutorial show a criteria /result table application taht could be adapted.