jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go

Why jsoniter?

Jsoniter is the fastest JSON parser. It could be up to 10x faster than normal parser, data binding included. Shameless self benchmark
Extremely flexible api. You can mix and match three different styles: bind-api, any-api or iterator-api. Checkout your api choices
Unique iterator api can iterate through JSON directly, zero memory allocation! See how iterator works

Show off

Here is a quick show off, for more complete report you can checkout the full benchmark with in-depth optimization to back the numbers up

Bind-API is the best

Bind-api should always be the first choice. Given this JSON document [0,1,2,3]

Parse with Java bind-api

import com.jsoniter.JsonIterator;
JsonIterator iter = JsonIterator.parse("[0,1,2,3]");
int[] val = iter.read(int[].class);
System.out.println(val[3]);

Iterator-API for quick extraction

When you do not need to get all the data back, just extract some.

Parse with Java iterator-api

import com.jsoniter.JsonIterator;
JsonIterator iter = JsonIterator.parse("[0, [1, 2], [3, 4], 5]");
int count = 0;
while(iter.readArray()) {
    iter.skip();
    count++;
}
System.out.println(count); // 4

Any-API for maximum flexibility

Parse with Java any-api

import com.jsoniter.JsonIterator;
JsonIterator iter = JsonIterator.parse("[{'field1':'11','field2':'12'},{'field1':'21','field2':'22'}]".replace('\'', '"'));
Any val = iter.readAny();
System.out.println(val.toInt(1, "field2")); // 22

Notice you can extract from nested data structure, and convert any type to the type to you want.

How to get

<dependency>
    <groupId>com.jsoniter</groupId>
    <artifactId>jsoniter</artifactId>
    <version>0.9.2</version>
</dependency>

Contribution Welcomed !

Report issue or pull request, or email taowen@gmail.com, or

wypb / java