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11 articles

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Oct 11, 2025 · Backend Development

Master Advanced Jackson Techniques in Spring Boot 3: From Files to Streaming

This article dives into advanced Jackson capabilities for Spring Boot 3, covering file, stream, byte array, URL, typed Map, JsonNode, ObjectNode, and streaming JsonParser techniques, each illustrated with concise code examples to help developers build robust, flexible JSON handling in backend services.

Backend DevelopmentJSONJackson

0 likes · 9 min read

Master Advanced Jackson Techniques in Spring Boot 3: From Files to Streaming

Spring Full-Stack Practical Cases

May 31, 2025 · Backend Development

Mastering Jackson ObjectMapper in Spring Boot 3: Real-World Cases & Performance Tips

This article explores Jackson's ObjectMapper in Spring Boot 3, covering basic serialization/deserialization, converting between objects, JSON strings, JsonNode, and collections, custom serializers/deserializers, handling unknown fields, and performance tuning with the Afterburner module and JMH benchmarks.

DeserializationJSONJackson

0 likes · 12 min read

Mastering Jackson ObjectMapper in Spring Boot 3: Real-World Cases & Performance Tips

macrozheng

Dec 19, 2023 · Backend Development

Why Creating a New ObjectMapper Slows Your SpringBoot App – Up to 300× Faster with a Singleton

This article benchmarks the cost of instantiating a new ObjectMapper for each JSON conversion in a SpringBoot project, demonstrates a singleton implementation that boosts read performance by 18× and write performance by up to 300×, and shows how to add custom serializers without sacrificing speed.

JMHJavaObjectMapper

0 likes · 8 min read

Why Creating a New ObjectMapper Slows Your SpringBoot App – Up to 300× Faster with a Singleton

Java Backend Technology

Dec 8, 2023 · Backend Development

Why Reusing a Single Jackson ObjectMapper Boosts JSON Parsing Speed 10×

Using Jackson's ObjectMapper for JSON parsing, this article benchmarks three approaches—creating a new mapper per call, sharing a global singleton, and using ThreadLocal—revealing that a single shared ObjectMapper can achieve up to ten times higher throughput, while ThreadLocal offers only modest gains.

JMHJSONJackson

0 likes · 7 min read

Why Reusing a Single Jackson ObjectMapper Boosts JSON Parsing Speed 10×

macrozheng

Aug 24, 2023 · Backend Development

Why Reusing a Single Jackson ObjectMapper Boosts JSON Performance 10×

This article explains how repeatedly creating Jackson ObjectMapper instances hurts performance, demonstrates a JMH benchmark comparing new, singleton, and ThreadLocal ObjectMapper usages, and concludes that a single globally shared ObjectMapper can achieve up to ten times faster JSON parsing.

BenchmarkJMHJackson

0 likes · 8 min read

Why Reusing a Single Jackson ObjectMapper Boosts JSON Performance 10×

macrozheng

Apr 26, 2022 · Backend Development

Is Creating a New ObjectMapper Every Call Killing Your Performance? A JMH Benchmark

This article examines the performance impact of instantiating a new Jackson ObjectMapper for each JSON parsing operation versus reusing a global instance, using JMH micro‑benchmarks to show that a shared ObjectMapper can be up to ten times faster.

BenchmarkJMHJackson

0 likes · 7 min read

Is Creating a New ObjectMapper Every Call Killing Your Performance? A JMH Benchmark

IT Services Circle

Apr 21, 2022 · Backend Development

Performance Comparison of ObjectMapper Instantiation Strategies Using JMH

This article benchmarks three ObjectMapper usage patterns—creating a new instance per call, sharing a global singleton, and using ThreadLocal—demonstrating that a single shared ObjectMapper can achieve up to ten‑fold higher throughput in JSON parsing.

BenchmarkJMHJackson

0 likes · 7 min read

Performance Comparison of ObjectMapper Instantiation Strategies Using JMH

Programmer DD

Nov 24, 2021 · Backend Development

Master Jackson Mixins: Serialize/Deserialize Java Objects Without Changing Their Code

This tutorial explains how Java developers can use Jackson Mixins to add custom JSON serialization and deserialization behavior to classes that lack default constructors or getters, without modifying the original classes, and shows how to register Mixins via ObjectMapper or custom modules.

DeserializationJSONJackson

0 likes · 7 min read

Master Jackson Mixins: Serialize/Deserialize Java Objects Without Changing Their Code

Senior Brother's Insights

Feb 23, 2021 · Backend Development

Mastering Jackson in Spring Boot: From Basics to Advanced Configuration

This article provides a comprehensive guide to using Jackson with Spring Boot, covering its core modules, Maven dependencies, ObjectMapper usage, JSON tree model, custom deserializers, XML handling, configuration options, and practical code examples for serialization and deserialization.

JSONJacksonJava

0 likes · 18 min read

Mastering Jackson in Spring Boot: From Basics to Advanced Configuration

Programmer DD

Nov 6, 2020 · Backend Development

How to Dynamically Add, Update, and Remove JSON Fields with Jackson in Java

This tutorial demonstrates how to use Jackson's ObjectMapper and ObjectNode to programmatically add, modify, and delete fields in JSON strings or Java objects, providing clear code examples and explaining the underlying JsonNode API for flexible JSON manipulation.

JSONJacksonJava

0 likes · 5 min read

How to Dynamically Add, Update, and Remove JSON Fields with Jackson in Java

Senior Brother's Insights

Jan 6, 2020 · Backend Development

Customizing Spring Boot's ObjectMapper for Date Formatting and JSON Conversion

This tutorial explains how Spring Boot automatically configures Jackson's ObjectMapper, shows how to override it with a custom mapper that formats Date fields, and demonstrates both serialization and deserialization of JSON using the customized ObjectMapper in a Spring MVC controller.

Date FormattingJSONJackson

0 likes · 6 min read

Customizing Spring Boot's ObjectMapper for Date Formatting and JSON Conversion