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How to Pretty-Print JSON in Java using Gson?

Patricia Arquette
Patricia ArquetteOriginal
2024-11-26 13:04:13961browse

How to Pretty-Print JSON in Java using Gson?

How to Pretty-Print JSON in Java

If you're working with the json-simple library and need to prettify your JSON data for readability, you'll need to look elsewhere for a solution.

Google's GSON library is a popular choice for this task:

import com.google.gson.*;

Gson gson = new GsonBuilder().setPrettyPrinting().create();
JsonParser jp = new JsonParser();
JsonElement je = jp.parse(uglyJsonString);
String prettyJsonString = gson.toJson(je);

A newer version of this library statically parses JSON strings:

Gson gson = new GsonBuilder().setPrettyPrinting().create();
JsonElement je = JsonParser.parseString​(uglyJsonString);
String prettyJsonString = gson.toJson(je);

Don't forget to include the necessary dependency in your Gradle configuration:

implementation 'com.google.code.gson:gson:2.8.7'

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