问正在读取CSV文件返回java.io.FileNotFoundException：

EN

    String constantURL = AppConst.INTERNAL_ASSETS_CONFIG_ROOT_URL + "whitelist/RMWhitelist.csv";
    logger.info("constantURL >  " + constantURL);

    BufferedReader br = null;
    String line = "";
    String cvsSplitBy = ",";
    try{         

        br = new BufferedReader(new InputStreamReader(new FileInputStream(constantURL)));      
        while ((line = br.readLine()) != null) {
           String[] country = line.split(cvsSplitBy);
           System.out.println("Country [code= " + country[0] + " , name=" + country[1] + "]");
        }
    }catch(Exception e){
        e.printStackTrace();
    }

 INFO: constantURL >  http://localhost:7001/shops/config/whitelist/milRMWhitelist.csv
 java.io.FileNotFoundException: http:\localhost:7001\app\config\whitelist\RMWhitelist.csv (The filename, directory name, or volume label syntax is incorrect)

final String file = this.httpRequestPoster.sendGetRequest(AppUrlConst.CONFIG_URL + "other.csv", "");
    Reader reader = new StringReader(file);
    final CSVReaderBuilder<UpgradeVO> customerVOCSVReaderBuilder = new CSVReaderBuilder<UpgradeVO>(reader);
    customerVOCSVReaderBuilder.strategy(CSVStrategy.UK_DEFAULT);
    CSVReader<UpgradeVO> customerVOCSVReader = customerVOCSVReaderBuilder.entryParser(new UpgradeParser()).build();
    Iterator<UpgradeVO> customerVOIterator = customerVOCSVReader.iterator();
    while (customerVOIterator.hasNext()) {
        UpgradeVO upgradeVO = customerVOIterator.next();
        logger.info(UpgradeVO.getServiceId());
    }