将Curl转换为POST api for java

curl -X POST -H "Content-Type: application/json" -d '{"name":"John","age":30}' https://api.example.com/users

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 java.io.IOException;

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

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

        // 设置请求体
        String requestBody = "{\"name\":\"John\",\"age\":30}";
        StringEntity entity = new StringEntity(requestBody, "UTF-8");
        httpPost.setEntity(entity);

        try {
            HttpResponse response = httpClient.execute(httpPost);
            HttpEntity responseEntity = response.getEntity();
            String responseBody = EntityUtils.toString(responseEntity, "UTF-8");

            // 处理响应
            System.out.println(responseBody);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}