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This article explains how to replace verbose manual if‑else checks with concise javax.validation annotations in Spring Boot, covering built‑in constraints, dependency setup, custom validators, validation groups, and global exception handling to create a unified, maintainable validation workflow.
The article shows how to integrate JSR‑303 bean validation into Dubbo services by adding the necessary Maven dependencies, annotating parameter classes, enabling validation on provider and consumer, customizing the validation filter to return a unified FacadeResult, disabling the default filter, and extending validation with custom annotations for clean, maintainable RPC parameter checks.
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