The jackson-databind data binding package provides object-bound parsing-based API (ObjectMapper) and tree-model parsing-based API (JsonNode) object-bound parsing-based API and tree-model parsing-based API rely on stream-model parsing-based API. Jackson-annotations annotation packages provide standard annotation functions.
#Java json compare generator
Jackson's internal implementation generates and parses json through json Generator and json Parser of the high-performance streaming mode API. The jackson-core core package provides an API based on stream pattern parsing, which 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 runtime occupies less memory and performs better Jackson parses large json files faster than other Java json frameworks such as Gson. Jackson relies on fewer jar packages and is easy to use. Spring MVC The default json parser is Jackson. According to statistics from Github, Jackson is one of the most popular JSON parsers. The Jackson community is relatively active and updates faster. Jackson is a widely used Java open source framework for serializing and deserializing json. Brief introductionĬhoosing a suitable JSON library should be considered from many aspects:įirst, I briefly introduce the identity background of the four libraries. The four JSON libraries are Gson, FastJson, Jackson and Json-lib. At the same time, according to the test results, we analyze if we choose the most suitable JSON libraries according to the actual application scenarios. Next, we take four commonly used JSON libraries for performance testing and comparison. In general, we don't need to be overly concerned about the performance of JSON parsing constructs, except on systems with high performance requirements.Īt present, there are many kinds of open source JSON libraries for Java. JSON is a fairly common data transfer format in both Web and server development. Only those who have tested them by themselves are the most trustworthy. But it's better to see a hundred things than to hear them. Every time I see on the Internet what people say about how good a library is, crush other libraries. This article uses JMH to test the performance of several common JSON parsing libraries in Java.
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