HttpURLConnection get请求解压gzip格式的数据

我就是我 2022-05-21 02:42 160阅读 0赞

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();
    }