public String httpGet(String path) {
        HttpURLConnection con = null;
        String result = null;
        try {
            URL url = baseURI.resolve(path).toURL();
            con = createConnection(url, "GET", false);
            con.connect();
            result = readDataFromConnection(con);
        } catch (Exception e) {
            LOGGER.errorWithApp(null, "uri:" + path + " return error: " + e.getMessage());
            result = errorMessage;
        } finally {
            if (con != null) {
                con.disconnect();
            }
        }
        return result;
    }
for get method

@param path
@return
registry/registry-mesh/src/main/java/com/alipay/sofa/rpc/registry/mesh/client/MeshApiClient.java