Utils_utility是什么意思

package com.example.week;

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * Created by 生哥 on 2017/12/2.
 */

public class NewUtils {
    private static final String JSON_URL = "https://api.tianapi.com/wxnew/";
    private URL url;
    private HttpURLConnection urlConnection;
    private String data = "";

    public String getJsonUrl(final String pa) {
        try {
            url = new URL(JSON_URL + pa);
            urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setConnectTimeout(5000);
            urlConnection.setReadTimeout(5000);
            int responseCode = urlConnection.getResponseCode();
            if (responseCode == 200) {
                InputStream inputStream = urlConnection.getInputStream();
                byte[] b = new byte[1024];
                int len = 0;
                while ((len = inputStream.read(b)) != -1) {
                    String str = new String(b, 0, len);
                    data += str;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return data;

    }

}