Скачать или смотреть java template language

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java template language (jtl) is often associated with template engines that are used to generate text output based on templates filled with dynamic data. one of the most popular template engines in the java ecosystem is apache freemarker.

in this tutorial, we will explore the basics of using apache freemarker, including how to set it up, create templates, and process those templates with java code.

step 1: setup

1. **add freemarker dependency**: if you are using maven, add the following dependency to your `pom.xml`:



if you are not using maven, you can download the freemarker jar from the [apache freemarker website](https://freemarker.apache.org/downloa...) and add it to your project’s classpath.

step 2: create a template

create a template file named `hello.ftl` (the `.ftl` is the standard file extension for freemarker templates). here’s an example of what the content might look like:



step 3: write java code to process the template

now, we will write a java program to load this template and populate it with data.



explanation of the code

1. **configuration setup**: the `configuration` object is set up to locate templates. the directory path should point to where your `.ftl` files are located.

2. **loading the template**: the `gettemplate` method is used to load the template file.

3. **data model preparation**: a map is created to hold the data that will be dynamically inserted into the template.

4. **template processing**: the `process` method is called on the template with the data model, and the output is written to a `stringwriter`.

5. **output**: the processed string is printed to the console, and there’s also an option to write the output to a file named `output.txt`.

running the example

1. ensure to update the template directory path in the java code to where you placed the `hello.ftl` template.
2. compile and run the `freemarkerexample` class.
3. you should see the output in the console and a file named `outpu ...

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