Jackson's internal implementation generates and parses json through the high-performance stream mode API's JsonGenerator and JsonParser. Jackson core package, which provides relevant API based on "stream mode" parsing, includes JsonPaser and JsonGenerator. Jackson's core module consists of three parts Jackson has a flexible API that can be easily extended and customized. Jackson runs with low memory consumption and good performance Jackson relies on fewer jar packages, which is easy to use.Ĭompared with other Java json frameworks such as Gson, Jackson can parse large json files faster. According to statistics in Github, Jackson is one of the most popular json parsers, and the default json parser of Spring MVC is Jackson.
#Java json compare update
Jackson community is relatively active and the update speed is relatively fast. Jackson is a widely used Java open source framework for serializing and deserializing json.
FastJson uses the original algorithm to improve the speed of parse to the extreme, surpassing all JSON libraries. Therefore, it is necessary to formulate a reference. The type of reference may appear, which may lead to errors in the conversion of JSON. FastJson will have some problems in the conversion of complex types of Bean to JSON. No dependency, no exception, no extra jar, can run directly on JDK. FastJsonįastJson is a high performance JSON processor written in Java language, developed by Alibaba company. As long as there are get and set methods in the class, gson can completely realize the conversion of complex types from JSON to bean or bean to JSON, which is the artifact of JSON parsing. Before using this kind of object conversion, you need to create the type of the object and its members before you can successfully convert the JSON string into the corresponding object. Gson has no dependency and does not need extra jar s. The application of gson mainly includes two conversion functions: toJson and fromJson. Gson was originally developed by Google to meet the internal needs of Google, but it has been applied by many companies or users since the first version was released in May 2008. Gson is currently the most versatile tool for JSON parsing. The four JSON libraries are: Gson, FastJson, Jackson, and JSON lib.
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