如何使用httpclient post方法将数据传递给api

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.util.ArrayList;
import java.util.List;

public class HttpClientExample {
    public static void main(String[] args) {
        HttpClient httpClient = HttpClientBuilder.create().build();
        HttpPost httpPost = new HttpPost("http://api.example.com");

        try {
            // 设置请求参数
            List<NameValuePair> params = new ArrayList<>();
            params.add(new BasicNameValuePair("param1", "value1"));
            params.add(new BasicNameValuePair("param2", "value2"));
            httpPost.setEntity(new UrlEncodedFormEntity(params));

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

            // 处理响应
            int statusCode = response.getStatusLine().getStatusCode();
            HttpEntity entity = response.getEntity();
            String responseBody = EntityUtils.toString(entity);

            System.out.println("Status Code: " + statusCode);
            System.out.println("Response Body: " + responseBody);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}