httpclient如何發送get請求

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

/**
 * Created by Administrator on 2018/4/11.
 */
public class HttpClientTest {


    public static void main(String[] args) {
        try {

            String charset = "UTF-8";
            //創建CloseableHttpClient
            CloseableHttpClient httpClient = HttpClients.custom().build();
            String url = "http://www.baidu.com";

            //如果有帶參數,直接在url後面加?號拼接 例如 http://www.baidu.com?a=n&b=n

            //請求方式
            HttpGet get = new HttpGet(url);
            //接收請求返回對象
            HttpEntity entity =httpClient.execute(get).getEntity();
            //使用EntityUtils 把httpEntity請求返迴流讀取成字元串
            String result = EntityUtils.toString(entity,charset);
            System.out.println(result);

            EntityUtils.consume(entity);
            httpClient.close();

        } catch (IOException e) {
            e.printStackTrace();
        }

    }

}