JSON parsing and serialization using Jackson in Java

• Java

Common JSON class libraries under Java include gson, JSON lib and Jackson. Jackson is relatively efficient. Jackson is mainly used for JSON and Java object conversion in the project. Some JSON operation methods of Jackson are given below.

1、 Preparatory work

First, go to the official website to download Jackson toolkit. Jackson has 1 X series and 2 X series, up to now 2 The latest version of the X series is 2.2 3，2. The X series has three jar packages to download:

jackson-core-2.2. 3. Jar (core jar package, download address)

jackson-annotations-2.2. 3. Jar (the package provides JSON annotation support, download address)

jackson-databind-2.2. 3. Jar (download address)

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