jackson将字符串反序列化为参数化映射

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

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

public class JacksonExample {
    public static void main(String[] args) {
        String jsonString = "{\"key1\":\"value1\",\"key2\":\"value2\"}";

        ObjectMapper objectMapper = new ObjectMapper();

        try {
            Map<String, String> map = objectMapper.readValue(jsonString, new TypeReference<Map<String, String>>() {});
            System.out.println(map);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}