Tagged articles

Argument Resolver

3 articles · Page 1 of 1

Jul 17, 2026 · Backend Development

Tackle Complex JSON in Spring Boot with a Single JsonPath Annotation

This article explains how to simplify handling deeply nested JSON responses in Spring Boot by creating a custom @JsonPath annotation that leverages JsonPath expressions, allowing one‑line extraction, filtering, and modification of JSON data directly in controller method parameters.

Argument ResolverCustom AnnotationJSON Parsing

0 likes · 10 min read

Tackle Complex JSON in Spring Boot with a Single JsonPath Annotation

Spring Full-Stack Practical Cases

Jun 23, 2026 · Backend Development

Stop Writing Manual if‑else: Master Spring Boot Partial Updates with @JsonMerge

This article explains how to avoid null‑overwrites during partial updates in Spring Boot by using Jackson's @JsonMerge annotation, demonstrates handling of nested objects and null values with @JsonSetter, and shows how to create a custom @JsonMergePatch argument resolver for clean controller code.

@JsonMergeArgument ResolverJackson

0 likes · 9 min read

Stop Writing Manual if‑else: Master Spring Boot Partial Updates with @JsonMerge

Spring Full-Stack Practical Cases

Apr 21, 2026 · Backend Development

Mastering Spring Boot 3 Parameter Conversion: 5 Practical Solutions

This article walks through five comprehensive Spring Boot 3 techniques for converting request parameters—including a custom Converter, PropertyEditor, custom @ConvertUser annotation, argument resolver, and JSON deserializer—showing step‑by‑step implementations, registration details, and runtime screenshots for each approach.

AnnotationArgument ResolverCustom Converter

0 likes · 10 min read

Mastering Spring Boot 3 Parameter Conversion: 5 Practical Solutions