How to Read a txt File Using Spring Boot

Discover how to easily read a `txt` file in your Spring Boot application with this practical guide. You'll learn to use `ClassPathResource` and `BufferedReader` to manage file input seamlessly.
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How to Read a txt File Using Spring Boot: A Step-by-Step Guide

Reading a .txt file in a Spring Boot application might seem daunting at first, especially if you're new to Java. However, it’s a straightforward process that can be accomplished with just a few lines of code. In this guide, we’ll walk you through the entire process, from accessing the file to storing its contents in a string array.

Understanding the Problem

In many applications, you may need to read data from external text files to utilize that information within your application. For instance, you might have a .txt file filled with keywords, and you want to store them in a string array to use them for processing or display.

Your goal is simple: Read a .txt file and assign its words into a String array. We’ll assume you're working with a file located within the classpath of your Spring Boot application.

Step-by-Step Solution

1. Prepare Your Text File

2. Set Up Your Spring Boot Application

3. Using ClassPathResource

To read a file from the classpath, you can utilize ClassPathResource, which provides a way to load files. Here’s how to implement it:

[[See Video to Reveal this Text or Code Snippet]]

4. Breakdown of the Code

ClassPathResource: This is used to locate the .txt file in your resources folder.

BufferedReader: This enables you to read the text stream efficiently.

split(","): This splits the concatenated string into an array based on the specified delimiter (in this case, a comma).

5. Run Your Application

Conclusion

Reading a .txt file in Spring Boot is a simple task when you have the right approach. By utilizing ClassPathResource and Java I/O classes, you can efficiently access and manipulate text files as needed in your applications.

Now, you're equipped with the knowledge to read text files effectively within your Spring Boot projects!

Feel free to experiment with different files and layouts. Happy coding!