java json string to map

YOU.com answered on June 17, 2021 Popularity 8/10 Helpfulness 4/10

answer java json string to map

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java json string to map

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import com.google.gson.Gson;
import java.lang.reflect.Type;
import java.util.Map;

public class JsonToMapExample {
    public static void main(String[] args) {
        String jsonString = "{\"name\": \"John\", \"age\": 30, \"city\": \"New York\"}";

        // Create a Gson instance
        Gson gson = new Gson();

        // Define the type of the Map
        Type mapType = Map.class;

        // Convert the JSON string to a Map
        Map<String, Object> map = gson.fromJson(jsonString, mapType);

        // Print the map
        for (Map.Entry<String, Object> entry : map.entrySet()) {
            System.out.println(entry.getKey() + ": " + entry.getValue());
        }
    }
}

Popularity 8/10 Helpfulness 4/10 Language java

Source: Grepper

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Contributed on Sep 11 2023

YOU.com

0 Answers Avg Quality 2/10

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java json string to map

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package com.mkyong;

import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;
import java.util.Map;

public class JacksonMapExample1 {

    public static void main(String[] args) {

        ObjectMapper mapper = new ObjectMapper();
        String json = "{\"name\":\"mkyong\", \"age\":\"37\"}";

        try {

            // convert JSON string to Map
            Map<String, String> map = mapper.readValue(json, Map.class);

			// it works
            //Map<String, String> map = mapper.readValue(json, new TypeReference<Map<String, String>>() {});

            System.out.println(map);

        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: mkyong.com

Tags: java

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Contributed on Jul 13 2022

Amine BENHAMMOU

0 Answers Avg Quality 2/10

map json string to java object

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ObjectMapper objectMapper = new ObjectMapper();
String json = "{ \"color\" : \"Black\", \"type\" : \"BMW\" }";
Car car = objectMapper.readValue(json, Car.class);

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: java

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Contributed on Jun 17 2021

Talented Tarantula

0 Answers Avg Quality 2/10

java json string to map

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