Spring Batch ItemProcessor Tutorial: Validate and Filter CSV Data in Spring Boot 3

Published: 05 July 2025
on channel: Spring Java Lab
47
3

Tired of invalid data crashing your batch jobs? In this Spring Batch tutorial, you'll learn how to master the ItemProcessor to validate and filter CSV records before they ever touch your database.

We’ll walk through a real-world scenario of cleaning "dirty" data—ensuring your Oracle DB stays clean and efficient.

✅ Topics Covered:

Reading CSV Files: Quick setup with FlatFileItemReader.

Custom Validation: Filtering records with null names, invalid emails, or incorrect country codes (e.g., non-India).

Filtering Logic: How to return null in ItemProcessor to skip unwanted records.

Database Writing: Saving only the "clean" records to Oracle DB using JpaItemWriter.

📚 Complete Spring Batch Masterclass (Free): Access all tutorials, code snippets, and database schemas in one place: 👉 https://spring-java-lab.blogspot.com/p/spr...

📺 Missed the first part? Watch it here: Spring Batch: Read CSV File and Import to DB 👉    • Spring Batch: Read CSV File and Import to DB  

💬 Got a specific validation error? Drop it in the comments below, and I’ll help you debug!

🔔 Support a New Creator: If this helped you, please Like & Subscribe. It helps me create more Java & Spring Boot content for you!

#SpringBatch #SpringBoot #JavaTutorial #ItemProcessor #DataValidation #CSVtoDB #OracleDB #BackendDevelopment


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