Java中如何将JSON格式的字符串转换为Map

<dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.8.8</version>
</dependency>

import com.google.gson.Gson;
import java.util.Map;
public class JsonToMapWithGson {
    public static void main(String[] args) {
        String json = "{\"name\": \"John\", \"age\": 30, \"city\": \"New York\"}";
        Gson gson = new Gson();
        // 将 JSON 字符串转换为 Map
        Map<String, Object> map = gson.fromJson(json, Map.class);
        // 输出转换后的 Map
        System.out.println(map);
    }
}

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.13.0</version>
</dependency>

import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.Map;
public class JsonToMapWithJackson {
    public static void main(String[] args) throws Exception {
        String json = "{\"name\": \"John\", \"age\": 30, \"city\": \"New York\"}";
        ObjectMapper objectMapper = new ObjectMapper();
        // 将 JSON 字符串转换为 Map
        Map<String, Object> map = objectMapper.readValue(json, Map.class);
        // 输出转换后的 Map
        System.out.println(map);
    }
}