java http/https post/get 請求 ，攜帶header參數

import com.alibaba.fastjson.JSONObject;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
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.nio.charset.Charset;

public class HttpPostJsonUtil {

    public static JSONObject doPost(String url, JSONObject jsonObject) {
        HttpClient client = HttpClientBuilder.create().build();
        HttpPost post = new HttpPost(url);
        JSONObject response = null;
        post.addHeader("Content-type","application/json; charset=utf-8");
        post.setHeader("Accept", "application/json");

        try {
            post.setEntity(new StringEntity(jsonObject.toString(), Charset.forName("UTF-8")));
            HttpResponse res = client.execute(post);
            if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                HttpEntity entity = res.getEntity();
                String result = EntityUtils.toString(entity);
                response = JSONObject.parseObject(result);
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return response;
    }

    public static JSONObject doGet(String url) {
        HttpClient client = HttpClientBuilder.create().build();
        HttpGet get = new HttpGet(url);
        JSONObject response = null;
        get.addHeader("Content-type","application/json; charset=utf-8");
        get.setHeader("Accept", "application/json");

        try {
            HttpResponse res = client.execute(get);
            if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                HttpEntity entity = res.getEntity();
                String result = EntityUtils.toString(entity);
                response = JSONObject.parseObject(result);
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return response;
    }

}

　方法中，jsonObject 參數可以換成 list 或者 map ，只要將 

jsonObject.toString() 換成

JSONObject.toJSONString(list) 或者

JSONObject.toJSONString(map)