If you are only interested in converting Java objects to and from JSON string then the third method is most appropriate for you. Data binding: converts JSON to and from POJO’s Tree model: provides a mutable in-memory tree representation of a JSON documentģ. Streaming API or incremental parsing/generation: reads and writes JSON content as discrete eventsĢ.
Jackson offers three methods for processing JSON format, each of them having its pros and cons:ġ.
Jackson aims to be the best possible combination of fast, correct, lightweight, and ergonomic for developers. Jackson is a multi-purpose Java library for processing JSON data format. Depending upon your need, you can choose any of them. It doesn't mean those other libraries are not useful, they also have their own strength like Gson is much simpler to use as compared to Jackson and json-simple is a really light-weight library without any third-party dependency.Īs the purpose of this article is to make you, a Java developer aware of useful JSON library, I leave the decision of choosing the JSON library for yourself.
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If you need a resource, check out this Jackson Quick Start: JSON Serialization With Java Made Easy - a free course on Udemy to learn Jackson API basics. It's a very useful, versatile, and high-performance library for parsing JSON and CSV files and I think every Java developer should know about it. You can also read Java XML and JSON to learn more about the pros and cons of JSON over XML.Īnd, if you are new to JSON Parsing in Java then I highly recommend you check out Jackson library.
The JSON is an acronym for JavaScript Object Notation, is a lightweight data-interchange format, an alternative to XML, but smaller, faster, and easier to parse.īecause JSON uses the JavaScript syntax for describing data objects, it is language and platform-independent and many parsers and libraries have been developed over the years. If you are new to JSON, probably heard about it but don't know what is JSON there here is a brief introduction of JSON for you. In this article, I am going to share 5 useful JSON libraries that I believe every Java JEE developer should be aware of.
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