Implement a multithreaded service on SpringBoot, which receives a list of URLs from a specific file and in several threads reads the URLs content and writes all data from all threads into one large XML file.
The number of threads is specified in the application settings.
XML file structure:
<Data>
<item>
<url></url>
<item_data></item_data>
</item>
</Data>
mvn clean install
mvn spring-boot:run