Reader應用---》訪問URL後獲取返回值

private String retrieveResult(String code, int phase, String generalTestCode) {
        String jsonResult = "";
        try {
            //URL url = new URL(resultUrl + "?ResumeID=" + code + "&cpxh=" + phase + "&Authorization=cgnpc2010");
            URL url = new URL(resultUrl + "?ResumeID=" + code + "&GeneralTestCode=" + generalTestCode +  "&Authorization=cgnpc2010");
            Reader reader = new InputStreamReader(new BufferedInputStream(url
                    .openStream()), "gb2312");
            int c;
            while ((c = reader.read()) != -1) {
                jsonResult += (char) c;
            }
            reader.close();
        } catch (Exception exp) {
            log.error("EvaluateManagerNormStarImpl.retrieveResult", exp);
        }
        return jsonResult;
    }