获取get请求返回值

  Map<String, Object> map = new HashMap<>(8);
            map.put("uid", entity.getUid());
            String result = HttpURLConnectionUtil.get(IELTS_URL, map);
            JSONObject jsonObject = JSONObject.fromObject(result);
            Map<String,Object> map1 = (Map<String, Object>) jsonObject.get("data");
            phone = map1.get("phone").toString();

    public static String get(String url, Map<String, Object> param) {
    
        StringBuilder builder = new StringBuilder();
        try {
    
            StringBuilder params = new StringBuilder();
            for (Entry<String, Object> entry : param.entrySet()) {
    
                if (entry.getValue() != null) {
    
                    params.append(entry.getKey());
                    params.append("=");
                    params.append(entry.getValue().toString());
                    params.append("&");
                }
            }
            if (params.length() > 0) {
    
                params.deleteCharAt(params.lastIndexOf("&"));
            }
            URL restServiceURL = new URL(url + (params.length() > 0 ? "?" + params.toString() : ""));
            HttpURLConnection httpConnection = (HttpURLConnection) restServiceURL.openConnection();
            httpConnection.setRequestMethod("GET");
            httpConnection.setRequestProperty("Accept", "application/json");
            if (httpConnection.getResponseCode() != 200) {
    
                throw new RuntimeException("HTTP GET Request Failed with Error code : "
                        + httpConnection.getResponseCode());
            }
            InputStream inStrm = httpConnection.getInputStream();
            byte[] b = new byte[1024];
            int length = -1;
            while ((length = inStrm.read(b)) != -1) {
    
                builder.append(new String(b, 0, length));
            }
        } catch (MalformedURLException e) {
    
            e.printStackTrace();
        } catch (IOException e) {
    
            e.printStackTrace();
        }
        return builder.toString();
    }