如何在Java中以正确的方式将List<>项目作为POST数据发送？

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import com.google.gson.Gson;

public class PostListDataExample {
    public static void main(String[] args) {
        // 创建HttpClient对象
        HttpClient httpClient = HttpClientBuilder.create().build();

        // 目标URL
        String url = "http://example.com/api/endpoint";

        // 创建HttpPost对象
        HttpPost httpPost = new HttpPost(url);

        // 创建List对象并添加数据
        List<String> dataList = new ArrayList<>();
        dataList.add("Item 1");
        dataList.add("Item 2");
        dataList.add("Item 3");

        // 将List转换为JSON字符串
        Gson gson = new Gson();
        String json = gson.toJson(dataList);

        try {
            // 设置请求体
            StringEntity requestEntity = new StringEntity(json);
            httpPost.setEntity(requestEntity);

            // 设置请求头信息
            httpPost.setHeader("Content-Type", "application/json");

            // 执行HttpPost请求
            HttpResponse response = httpClient.execute(httpPost);

            // 获取响应结果
            HttpEntity responseEntity = response.getEntity();
            String responseString = EntityUtils.toString(responseEntity);
            System.out.println("Response: " + responseString);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}