Java使用HttpClient发送Get请求和Post请求

Java使用HttpClient发送Get请求和Post请求

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
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;

public class HttpClientUtil {
    /**
    *HttpClient发送Get请求
    */
    public void doHttpClientGet() {
        //定义请求路径
        String url="http://localhost:8080/hello.do";
        //创建默认的httpClient实例
        CloseableHttpClient httpClient =HttpClients.createDefault();
        try {
            //创建Get方式请求对象
            HttpGet httpGet = new HttpGet(url);
            //发送get请求
            CloseableHttpResponse httpResponse = httpClient.execute(httpGet);
            try{
                //response实体
                HttpEntity entity = httpResponse.getEntity();
                if (null != entity){
                    System.out.println("响应状态码:"+ httpResponse.getStatusLine());
                    System.out.println("-------------------------------");
                    System.out.println("响应内容:" + EntityUtils.toString(entity));
                    System.out.println("-------------------------------");                    
                }
            }catch(Exception e){
                e.printStackTrace();
            }finally{
                httpResponse.close();
            }
        }catch(Exception e){
               e.printStackTrace(); 
        }finally{
            try{
                httpClient.close();
            } catch (Exception e){
                e.printStackTrace();
            }
        }
    }



    /**
    *HttpClient发送Get请求
    */
    public void doHttpClientPost() {
        //定义请求路径
        String url="http://localhost:8080/hello.do";
        //定义编码格式
        String encoding="utf-8";
        //
        String Authorization="密匙";
        //创建默认的httpClient实例
        CloseableHttpClient httpClient = null;
        httpClient=HttpClients.createDefault();
        try {
            //创建Get方式请求对象
            HttpPost httpPost = new HttpPost(url);
            //装填参数
            List list = new ArrayList();
            list.add(new BasicNameValuePair("name", "top"));
            list.add(new BasicNameValuePair("age", "25"));


            try{
                httpPost.setHeader("Authorization",Authorization);
                httpPost.setEntity(new UrlEncodedFormEntity(list, encoding));
                //发送post请求
                CloseableHttpResponse httpResponse = httpClient.execute(httpPost);
                //response实体
                HttpEntity entity = httpResponse.getEntity();
                if (null != entity){
                    System.out.println("响应状态码:"+ httpResponse.getStatusLine());
                    System.out.println("-------------------------------");
                    System.out.println("响应内容:" + EntityUtils.toString(entity));
                    System.out.println("-------------------------------");                    
                }
            }catch(Exception e){
                e.printStackTrace();
            }finally{
                httpResponse.close();
            }
        }catch(Exception e){
               e.printStackTrace(); 
        }finally{
            try{
                httpClient.close();
            } catch (Exception e){
                e.printStackTrace();
            }
        }
    }       
}