Learn how to use crawler4j to create your own web crawlers.
I'm a freelance web application developer with over fifteen years of experience working with Java and JEE and an interest in code generation. I really enjoy sharing my knowledge with others.
Here's what I've written (so far):
Learn how to create LIKE queries in Spring JPA Repositories.
Learn how to use Jackson to read and write YAML files.
Learn how to access request headers in Spring REST controllers.
Learn what causes the “java.lang.UnsupportedClassVersionError: Unsupported major.minor version error” message, and how to fix it.
Have a look at Groovy’s support for I/O operations and the extensions to Java’s I/O functionality.
Explore ways to iterate over a map in Groovy using standard language features like each, eachWithIndex, and a for-in loop.