import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
 
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import javax.xml.bind.DatatypeConverter;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.*;

/**
 * Created by xenia on 2017/6/6.
 
 */

public class JavaNetURLRESTFulClient {
    public static void main(String[] args) throws ClientProtocolException, IOException {
        //認證資訊物件，用於包含訪問翻譯服務的使用者名稱和密碼
String path = "http://************";
        //1.建立客戶端訪問伺服器的httpclient物件   開啟瀏覽器
HttpClient httpclient = new DefaultHttpClient();
        //2.以請求的連線地址建立get請求物件     瀏覽器中輸入網址
 
HttpGet httpget = new HttpGet(path);

        //username:password--->訪問的使用者名稱，密碼,並使用base64進行加密，將加密的位元組資訊轉化為string型別，encoding--->token
String encoding = DatatypeConverter.printBase64Binary("username:password".getBytes("UTF-8"));

        httpget.setHeader("Authorization", "Basic " +encoding);
        //3.向伺服器端傳送請求 並且獲取響應物件  瀏覽器中輸入網址點選回車
HttpResponse response = httpclient.execute(httpget);
        //4.獲取響應物件中的響應碼
StatusLine statusLine = response.getStatusLine();//獲取請求物件中的響應行物件
int responseCode = statusLine.getStatusCode();//從狀態行中獲取狀態碼
System.out.println(responseCode);
            if (responseCode == 200) {
                //5.  可以接收和傳送訊息
HttpEntity entity = response.getEntity();
                //6.從訊息載體物件中獲取操作的讀取流物件
InputStream input = entity.getContent();
                BufferedReader br = new BufferedReader(new InputStreamReader(input));
                String str1 = br.readLine();
                String result = new String(str1.getBytes("gbk"), "utf-8");
                System.out.println("伺服器的響應是:" + result);
                br.close();
                input.close();
            } else {
                System.out.println("響應失敗!");
            }
        }
    }

執行結果：

200
伺服器的響應是:{"events":375383}

其中：{"events":375383}是請求API的響應體（返回的JSON資料）