Java-Gson-Examples/GsonTreeModelRead.java at master · janbodnar/Java-Gson-Examples · GitHub

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package com.zetcode;

import com.google.gson.JsonArray;

import com.google.gson.JsonElement;

import com.google.gson.JsonObject;

import com.google.gson.JsonParser;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.Reader;

import java.nio.charset.StandardCharsets;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

public class GsonTreeModelRead {

public static void main(String[] args) throws FileNotFoundException, IOException {

String fileName = "src/main/resources/cars.json";

Path path = Paths.get(fileName);

try (Reader reader = Files.newBufferedReader(path,

StandardCharsets.UTF_8)) {

JsonParser parser = new JsonParser();

JsonElement tree = parser.parse(reader);

JsonArray array = tree.getAsJsonArray();

for (JsonElement element : array) {

if (element.isJsonObject()) {

JsonObject car = element.getAsJsonObject();

System.out.println("********************");

System.out.println(car.get("name").getAsString());

System.out.println(car.get("model").getAsString());

System.out.println(car.get("price").getAsInt());

JsonArray cols = car.getAsJsonArray("colors");

cols.forEach(col -> {

System.out.println(col);

});

}

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