Meeting.prototype.getData = function(){
    var self = this;
    return new Promise(function(resolve,reject){
        debug("getData options"+self.options);
        var req = http.request(self.options, function(res) {
            res.setEncoding('utf8');
            var resData = [];
            res.on('data', function (chunk) {
                resData.push(chunk);
            });
            res.on('end', function() {
                var data = resData.join("");
                debug("res end"+data);
                return resolve(data);
            })
        });
        req.on('error', function(e) {
            debug("problem with request:"+ e.message);
            return reject(e.message);
        });
        debug("req postData:"+ self.postData);
        req.write(self.postData);
        req.end();

    });
};

这里的reject如果reject(e)，就会报错是不是就这么写还是其他写法？