还是官网靠谱啊

package com.test.httpclient.getpost;import java.io.IOException;import java.util.ArrayList;import java.util.List;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.ResponseHandler;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;public class HttpRequestUtils {    public static void main(String[] args) throws Exception {        CloseableHttpClient httpclient = HttpClients.createDefault();        String url = "https://blockchain.info/unspent?active=1Cdid9KFAaatwczBwBttQcwXYCpvK8h7FK";        try {            HttpGet httpGet = new HttpGet(url);            CloseableHttpResponse response1 = httpclient.execute(httpGet);                     // Create a custom response handler            ResponseHandler
     
       responseHandler = new ResponseHandler
      
       () {                @Override                public String handleResponse(                        final HttpResponse response) throws ClientProtocolException, IOException {                    int status = response.getStatusLine().getStatusCode();                    if (status >= 200 && status < 300) {                        HttpEntity entity = response.getEntity();                        return entity != null ? EntityUtils.toString(entity) : null;                    } else {                        throw new ClientProtocolException("Unexpected response status: " + status);                    }                }            };                        // The underlying HTTP connection is still held by the response object            // to allow the response content to be streamed directly from the network socket.            // In order to ensure correct deallocation of system resources            // the user MUST call CloseableHttpResponse#close() from a finally clause.            // Please note that if response content is not fully consumed the underlying            // connection cannot be safely re-used and will be shut down and discarded            // by the connection manager.            try {                System.out.println(response1.getStatusLine());                System.out.println(response1.toString());                HttpEntity entity1 = response1.getEntity();                // do something useful with the response body                // and ensure it is fully consumed                String responseBody = httpclient.execute(httpGet, responseHandler);                System.out.println(responseBody);                EntityUtils.consume(entity1);            } finally {                response1.close();            }            /*HttpPost httpPost = new HttpPost("http://httpbin.org/post");            List 
       
         nvps = new ArrayList 
        
         ();            nvps.add(new BasicNameValuePair("username", "vip"));            nvps.add(new BasicNameValuePair("password", "secret"));            httpPost.setEntity(new UrlEncodedFormEntity(nvps));            CloseableHttpResponse response2 = httpclient.execute(httpPost);            try {                System.out.println(response2.getStatusLine());                HttpEntity entity2 = response2.getEntity();                // do something useful with the response body                // and ensure it is fully consumed                EntityUtils.consume(entity2);            } finally {                response2.close();            }*/        } finally {            httpclient.close();        }    }}
        
       
      
     

             
                    
       
        org.apache.httpcomponents
                    
       
        httpclient
                    
       
        4.5.2