If you need something that looks like velocity and smells like velocity, maybe it is velocity? Droo: Its not a class. Show 3 more comments. Active Oldest Votes. Improve this answer. V-tech 1 1 silver badge 8 8 bronze badges. Javadoc for StrSubstitutor commons. StrSubstitutor deprecated as of 1. This class will be removed in 2.
Gradle dependency for importing StringSubstitutor is org. I knew java should have an inbuilt way to do this without having to use are freaking template engine to do such a simple thing!
Seems like String. Be aware format also takes an Object It should be noted that MessageFormat can only be reliably used for its namesake, display messages, not for output where technical formatting matters. Numbers for example will be formatted per locale settings, rendering them invalid for technical uses. Add a comment. This is less useful when you need to repeat the same argument more than once.
Other answers here require specifying each argument only once. The output of the following is: My dog is named fido, and Jane Doe owns him. This is what I was looking for. Thank you for giving an implementation. I was trying for it and getting incorrect results. Anyway it solved my problem. Joe, glad I could help. It was a good excuse for me to finally practice writing some code that uses reflection in Java.
Nice Utility. Since java 9, you can now inline the map and pass the populated map as parameter e. This will further simplify calling the "format" method. Create a map of all the objects that will be referenced in the template.
Use a regular expression to find variable references in the template and replace them with their values see step 3. The Matcher class will come in handy for find-and-replace. Split the variable name at the dot. Look up user in your map to get the object and use reflection to obtain the value of name from the object. For the last step, we will create again under that webapp folder and new folder called thymeleaf.
We add thyme. And congratulations you have successfully configured all four Spring Boot Supported Template Engines. At the end of the configuration section, it is important to point out that each of the engines has assigned its own Controller which is responsible for a proper output generation. Now is the right time to write a few last words about the general feeling from all mentioned possibilities.
I have created a sample Gradle project that imports all Temple engines starter. This setup can be found inside the configuration file build. Published at DZone with permission of Miro Wengner. See the original article here.
Web Dev Zone. Thanks for visiting DZone today,. Edit Profile. Sign Out View Profile. Over 2 million developers have joined DZone. A Review of Java Template Engines. Like Join the DZone community and get the full member experience. Join For Free. Here is the deprecated engine that has been widely used over last several years.
Apache Velocity Apache Velocity Template Engine is used for comparison and also to make testing the other three alternatives FreeMarker, Thymeleaf, and Pebble a little bit simpler. Autowired private ServletContext servletContext; Opinions expressed by DZone contributors are their own.
Then use the Thymeleaf language to provide your object to the HTML file to be processed in the engine during runtime. Spring Boots Template engine will build this in the background and present it to the user, but it will show the actual points to the end user! Hope this helps a tiny bit. I know this question has been answered pretty effectively so far, but I want to add my two cents in as I work with Thymeleaf often.
The easiest way to think about a template engine is that it allows some dynamic development of html based on information passed to it by the controller method. This allows you to put logic in that normally wouldn't exist, or say display a certain section if a user is perhaps logged into admin.
If web pages were houses, html is the frame, css is the walls, Javascript is the lights and electricity, and a template engine would pretty much just be the architect designing the plans on the fly before the frame was built based on desires of the buyer of the house user inputs. But it has not always been like this and some Frameworks still don't build everything on small requests. This may sound a little outdated but there is still a lot of websites using this.
And if you build a web app for a customer with slow PCs or other devices and the page contents are performance heavy you might want to do as much work as possible on the server so that the user does not have to wait for long. And also you can cache the rendered pages. There is even server side rendering of react pages to e. And building websites like this does not mean you cannot use AJAX, but if you use templates you need to think about what makes sense.
The "back end" must have HTML, because that's what's delivered to, and rendered by, the client. That said: server-side rendering is still a thing, and has had a resurgence lately--a React app may have its initial rendering done on the server so again the client gets a page rendered with both HTML and associated data, and then starts acting like a normal SPA.
Browsers used to suck. JS used to be a neat add-on, sites were relatively static, and essentially all rendering was done on the server. The back end would get data from wherever it got data from and generate complete HTML pages, and there was little happening on the client side other than some form fields, maybe some validation, and that was about the extent of it.
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THank you.
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