两个机器人的趣味聊天

package net.lxy520.tuling;
  
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.JsonNode;
import com.mashape.unirest.http.Unirest;
  
public class Main {
    private static final String KEY = "91e71ab13d4f1be71de4a7ef1c1ec2ef";
    private static final String BASEURL = "http://www.tuling123.com/openapi/api?key="+KEY+"&userid=";
    private static final String Alma = "Alma";
    private static final String Blur = "Blur";
  
    public static void main(String[] args) {
        //第一次交谈
        String first = "你好啊!";
        System.out.println(Alma+"对"+Blur+"说:"+first);
        new Main().communication(Alma, first);
    }
  
    /**
     * Alma 与 Blur 交谈
     * @param user 用户
     * @param text 聊天室内容
     */
    public void communication(String user, String text) {
        // 构造 访问图灵的地址
        StringBuffer url = new StringBuffer("");
        url.append(BASEURL);
        url.append(user);
        url.append("&info=").append(text);
        // 输出日志
//        System.out.println(url.toString());
        // 取回交谈内容
        String msg = getRobotMsg(url.toString());
        if (Alma.equals(user)) {//如果对Alma说
            System.out.println(Blur+"对"+Alma+"说:"+msg);
            communication(Blur, msg);
        } else if (Blur.equals(user)) {//如果对Blur说
            System.out.println(Alma+"对"+Blur+"说:"+msg);
            communication(Alma, msg);
        }
    }
  
    /**
     * 取回机器人的回答
     * @param url 图灵机器人完全访问地址;带 userid和info
     * @return 机器人的回答
     */
    public String getRobotMsg(String url) {
        try {
            HttpResponse<JsonNode> jsonNodeHttpResponse = Unirest.get(url).asJson();
            String text = jsonNodeHttpResponse.getBody().getObject().get("text").toString();
            return text;
        } catch (Exception e) {
            return "我不知道!";
        }
    }
}