FreeMarker (FTL) Hello World Tutorial with Example

Lars Vogel says:

Thanks, that got me started. Now I can replace my own template engine with FreeMaker.

Nishant Kanungo says:

I am getting the following exception.

Exception in thread “main” java.lang.NoClassDefFoundError: com/google/common/collect/MapMaker
at freemarker.core.Environment.(Environment.java:93)
at freemarker.template.Template.createProcessingEnvironment(Template.java:367)
at freemarker.template.Template.process(Template.java:237)
at com.infy.freemaker.FTLHelloWorld.main(FTLHelloWorld.java:28)

Please help me out.

Nishant Kanungo says:

We need to add google-collections-1.0-rc2.jar along with the freemaker.jar in the build path.

Sharath says:

Hi Viral Patel,
Can you show me how to use StringTemplateLoader?
I have 3 to 4 values which i need to put it in Map in the same string

Lars Vogel says:

@Viral: :-)

bharat thakarar says:

it helped a lot…
thanx

Nurs says:

I have problem like this java.io.FileNotFoundException: Template src/main/java/helloworld.ftl not found.
at freemarker.template.Configuration.getTemplate(Configuration.java:580)
at freemarker.template.Configuration.getTemplate(Configuration.java:543)

Can you help me?
Thanks

unnati says:

Very easy to understand. thanks

nabil says:

Hi,
it would be preferable to add “throws IOException, TemplateException”

exemple:

public static void main(String[] args) throws IOException, TemplateException
{
}

thank you

Deepesh says:

Could anybody tell me how to send the ftl contents in the email body. I have a requirement where user submits the timesheets and then his Manager should get an email. I have done this with Reading the generated ftl file but want to avoid this reading step and send direct ftl content in email.

Appreciate your help !

Thanks …

Hung says:

Hi Deepesh,
Not sure I get your point. But probably, you can do like something like below:

public static void main(String[] args) {
		String templateStr="Hello ${name}";
		 try {
		 	Template t = new Template("whateverTemplateName", new StringReader(templateStr),
				 new Configuration());
			Map data = new HashMap();
			data.put("name", "John");
			Writer out = new OutputStreamWriter(System.out);
			t.process(data, out);
			out.flush();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

You also may want to read more in javadoc of StringTemplateLoader

Fatman13 says:

Does country_index just get init to 0 by default?

Karthi says:

Very clear.

Thanks a lot.

chandni jain says:

Viral Can You explain step by step process to generate pdf report using xslt-fo

Zeeshan Akhter says:

that’s great effort and its quick start up guide…………

Asha says:

very nice!

sujata says:

shouldn’t the TemplateLoader be set in Configuration, otherwise it give FileNotFoundException.

Amel says:

I develop an application to generate files using freemarker engine. In some case, if there is an exception, even if I catch it, freemarker generate a file that contains this exception. How can I avoid the generation of the file in that case?
Can some one help me?

Aldo says:

Thanks. It worked. I like Freemarker a lot.

Yen says:

I can’t get it to output the file in C: drive.
I am using Eclipse/SuiteCloude IDE

Mahesh A says:

thanx. this is very easy. can you please provide more examples?

ESSEST says:

this is the first time I use freemarker, so i have a question, i have a tree so there is a parent and a children and also the children have there own children, so can i use this code to extract parent and there children.

${key.name}

${key1.name}

${key2.name}

Dmitry says:

BIG THANKS TO YOU MAN! THE BEST TUTORIAL FOR FREEMARKER EVER SEEN!

Sarah says:

Thanks a lot !

Srinivas says:

Hi,
Can i have this code to write to a html file ?

Emilio says:

Hi, I’m newbie using the templates, I want to show images, but if one code has more than one images I don’t know how to do it, I use this

Code:
${feature.code.value}
Mat:
${feature.mat.value}
Obj:
${feature.obj.value}

Emilio says:

Sorry, this is my code:

<#list features as feature>
		<div id="cajas">
			<div id="cajaCODE">Codigo: </div>
			<div id="caja2"><div id="cajaCO">${feature.code.value}</div></div>
			<div id="cajaMAT">Material: </div>
			<div id="cajaOB2"><div id="caja3">${feature.material.value}</div></div>
			<div id="cajaOB">Objeto:</div>
			<div id="cajaOB2"><div id="caja3">${feature.objeto.value}</div></div>
			<#if feature.fotografia.value!="">
				<a href="http://newgis.cesga.es/arqimg/topain/${feature.fotografia.value}" target="_new"><img src="http://localhost:8080/thumb/${feature.fotografia.value}"></a>
			</#if>

		</div>
	</#list>
 

quest says:

Great example.

xinwendashibake says:

there are some problems.

FreeMarker Template example: ${message}

=======================
=== County List ====
=======================

${country_index + 1}. ${country}

xinwendashibake says:


package net.viralpatel.freemarker;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;

public class FTLHelloWorld {

public static void main(String[] args) {

//Freemarker configuration object
Configuration cfg = new Configuration();
try {
//Load template from source folder
Template template = cfg.getTemplate("src/helloworld.ftl");

// Build the data-model
Map data = new HashMap();
data.put("message", "Hello World!");

//List parsing
List countries = new ArrayList();
countries.add("India");
countries.add("United States");
countries.add("Germany");
countries.add("France");

data.put("countries", countries);

// Console output
Writer out = new OutputStreamWriter(System.out);
template.process(data, out);
out.flush();

// File output
Writer file = new FileWriter (new File("src/FTL_helloworld.txt"));
template.process(data, file);
file.flush();
file.close();

} catch (IOException e) {
e.printStackTrace();
} catch (TemplateException e) {
e.printStackTrace();
}
}
}

Steve says:

Since nobody knit-picked yet, let me be the first one. The text file is generated from the output, but not the console. Because the ftl file and the txt file have typos “county” instead of “country” but not the console :)

Justin says:

Thanks a lot.. Only few edit … :)

Pavel says:

Correct template must be

FreeMarker Template example: ${message}

=======================
===  County List   ====
=======================
<#list countries as country>
${country_index + 1}. ${country}
</#list>

minal says:

Hello,

could you please demonstrate how to generate pdf from ftl.?

I tried following code (I just replace .txt extension with .pdf. ) but there is error in generated PDF.

data.put(“message”, “Hello World!”);
//List parsing
List countries = new ArrayList();
countries.add(“India”);
countries.add(“United States”);
countries.add(“Germany”);
countries.add(“France”);

data.put(“countries”, countries);

Configuration cfg = new Configuration();

Template template = cfg.getTemplate(“htmltopdf/src/freemake.ftl”);

// Console output
Writer out = new OutputStreamWriter(System.out);
template.process(data, out);
out.flush();

// File output
Writer file = new FileWriter (new File(“D:\\helloworld.pdf”));
template.process(data, file);
file.flush();
file.close();

Carol says:

Thank you so much!

Thomas says:

Merci beaucoup pour ce tuto ! Thanx so much for your tutorial ! Great help !

ramesh says:

Good content

Rakesh says:

IN FTL , i’m passing String value which has HTML data ex. txt = “welcomeUSER….” something like that , so when the PDF is generated it is displayed has it is which is in the txt value ,rather is there any way to Parse data . like in angularjs we have ng-bind-html ?
all suggestions are welcome and appreciated