fastjson

FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.

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Java

fastjson

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.

FASTJSON 2.0.x has been released, faster and more secure, we recommend you upgrade to the latest version.

Fastjson Goals

Provide the best performance on the 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)

Documentation

Documentation Home
Contributing Code
Frequently Asked Questions
FASTJSON 1.x User Upgrade Guid https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn

Benchmark

Eishay benchmark https://github.com/eishay/jvm-serializers/wiki
fastjson2 benchmark https://github.com/alibaba/fastjson2/wiki/fastjson_benchmark

Download

Maven

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.31</version>
</dependency>

Gradle via JCenter

compile 'com.alibaba:fastjson:2.0.28'

Please see this Wiki Download Page for more repository info.

License

Fastjson is released under the Apache 2.0 license.

Copyright 1999-2020 Alibaba Group Holding Ltd.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at the following link.

     http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.