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Fastjson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object. Fastjson can work with arbitrary Java objects including pre-existing objects that you do not have source-code of.

• Provide best performance in server side and android client.
• Provide simple toJSONString() and parseObject() methods to convert Java objects to JSON and vice-versa.
• Allow pre-existing unmodifiable objects to be converted to and from JSON.
• Extensive support of Java Generics.
• Allow custom representations for objects.
• Support arbitrarily complex objects (with deep inheritance hierarchies and extensive use of generic types).

https://github.com/alibaba/fastjson/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98

the latest JAR

or via Maven:

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>VERSION_CODE</version>
</dependency>

or via Gradle:

compile 'com.alibaba:fastjson:VERSION_CODE'

replace VERSION_CODE with real version name such as 2.0.28 released in Here or Here or Here.

Samples : https://github.com/alibaba/fastjson/wiki/Samples-DataBind

https://github.com/alibaba/fastjson/wiki/%E5%9C%A8-Spring-%E4%B8%AD%E9%9B%86%E6%88%90-Fastjson

https://github.com/alibaba/fastjson/wiki/Integrate-Fastjson-in-JAXRS

https://github.com/alibaba/fastjson/wiki/Use-Fastjson-in-Kotlin

https://github.com/alibaba/fastjson/wiki/Best-Practice-for-JSON-Fastjson%EF%BC%88JSON-Fastjson%E6%9C%80%E4%BD%B3%E5%AE%9E%E8%B7%B5%EF%BC%89