HttpURLConnection get请求解压gzip格式的数据

最近项目在使用 http://wthrcdn.etouch.cn/weather_mini

获取天气预报数据，但此接口只能用get方法请求，而且返回数据一直是乱码，原来返回数据用gzip格式压缩了，所以我的方

法中增加了判断是否为gzip并解压

public static String sendGet(String url, String param) {
    StringBuffer stringBuffer = new StringBuffer();
    try {
        String urlNameString = url + "?" + param;
        URL realUrl = new URL(urlNameString);

        HttpURLConnection httpURLConnection = (HttpURLConnection) realUrl.openConnection();
        //在这里设置一些属性，详细见UrlConnection文档，HttpURLConnection是UrlConnection的子类
        //设置连接超时为5秒
        httpURLConnection.setConnectTimeout(5000);
        //设定请求方式(默认为get)
        httpURLConnection.setRequestMethod("GET");
        httpURLConnection.setRequestProperty("accept", "*/*");
        httpURLConnection.setRequestProperty("Accept-Charset", "UTF-8");
        httpURLConnection.setRequestProperty("contentType", "UTF-8");
        httpURLConnection.setRequestProperty("Content-type", "application/x-www-form-urlencoded;charset=UTF-8");
        //建立到远程对象的实际连接
        httpURLConnection.connect();
        GZIPInputStream gZIPInputStream = null;
        String encoding = httpURLConnection.getContentEncoding();
        if(encoding.equals("gzip")){
            gZIPInputStream = new GZIPInputStream(httpURLConnection.getInputStream());
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(gZIPInputStream));
            String line = null;
            while ((line = bufferedReader.readLine()) != null) {
                //转化为UTF-8的编码格式
                line = new String(line.getBytes("UTF-8"));
                stringBuffer.append(line);
            }
            bufferedReader.close();
        }else{
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(httpURLConnection.getInputStream()));
            String line = null;
            while ((line = bufferedReader.readLine()) != null) {
                //转化为UTF-8的编码格式
                line = new String(line.getBytes("UTF-8"));
                stringBuffer.append(line);
            }
            bufferedReader.close();
        }
        //返回打开连接读取的输入流，输入流转化为StringBuffer类型，这一套流程要记住，常用


        httpURLConnection.disconnect();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return stringBuffer.toString();
}