key value键值对形式的json数据如何转换为json字符串

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-databind</artifactId>

<version>2.13.1</version>

</dependency>
import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.HashMap;

import java.util.Map;

public class JsonConversionExample {

public static void main(String[] args) {

try {

// 创建一个Map作为键值对的载体

Map<String, Object> keyValueMap = new HashMap<>();

keyValueMap.put("key1", "value1");

keyValueMap.put("key2", "value2");

// 创建ObjectMapper实例

ObjectMapper objectMapper = new ObjectMapper();

// 将Map转换为JSON字符串

String jsonString = objectMapper.writeValueAsString(keyValueMap);

// 输出JSON字符串

System.out.println(jsonString);

} catch (Exception e) {

e.printStackTrace();

}

}

}