HttpClient的使用(3)

     * 问卷id，作为从盖娅系统中获取调查问卷的参数
     * </pre>
     */ 
    private Map<String, String> questionTypeToQuestionId = new HashMap<String, String>(); 
 
    private HttpClient          httpClient; 
 
    public boolean addFeedBack(FeedBackModel feedBackModel) { 
        if (feedBackModel == null) { 
            return false; 
        } 
        boolean res = false; 
        // 调用盖娅系统的接口，提交反馈 
        PostMethod postMethod = new PostMethod(feedBackAnswerUrl); 
        postMethod.addParameter(PARAM_QUESTION_ID, feedBackModel.getQuestionId()); 
        postMethod.addParameter(PARAM_ANSWER, feedBackModel.getAnswer()); 
        postMethod.addParameter(PARAM_COOKIE_ID, feedBackModel.getCookieId()); 
        try { 
            int statusCode = httpClient.executeMethod(postMethod); 
            if (statusCode != HttpStatus.SC_OK) { 
                StringBuilder sb = new StringBuilder("fail to add feedback, requestUrl="); 
                sb.append(feedBackAnswerUrl).append(", parameter: ").append(feedBackModel.toString()).append(", HTTP StatusCode=").append(statusCode); 
                log.error(sb.toString()); 
                res = false; 
            } else { 
                res = true; 
            } 
        } catch (HttpException e) { 
            log.error("HttpException occured when addFeedBack, requestUrl=" + feedBackAnswerUrl + ", parameter: " + feedBackModel.toString(), e); 
            res = false;