nodejs/cjms/framework/lib/Response.js

var CallLog = require('./CallLog.js');

function Response(req, res) {
    this._req = req;
    /**
     * @type ServerResponse
     */
    this._res = res;
    this.codeMap = require('../../conf/code.inc.js');
}

/**
 * sucess
 * @param {Array|String|Number} data 返回的数据
 * @param {String} msg 返回的msg
 * @param {String} debugMsg 调试的msg
 * @author benzhan
 */
Response.prototype.success = function(data, msg, debugMsg) {
    var code = CODE_SUCCESS;
    this.debugMsg = debugMsg;

    msg = msg || this.codeMap[code];
    if (DEBUG && debugMsg) {
        msg = msg + " 【调试信息:" + debugMsg + "】";
    }

    var ret = {
        result : 1,
        code : code,
        msg : msg,
        data : data
    };

    this.exitData(ret);
};

/**
 * error with code
 * @param {Number} code
 * @param {String} msg
 * @param {String} debugMsg
 * @param {String} extData
 * @author benzhan
 */
Response.prototype.error = function(code, msg, debugMsg, extData) {
    this.debugMsg = debugMsg;

    msg = msg || this.codeMap[code];
    if (DEBUG && debugMsg) {
        msg = msg + " 【调试信息:" + debugMsg + "】";
    }

    var ret = {
        result : 0,
        code : code,
        msg : msg
    };

    if (extData) {
        ret['data'] = extData;
    }

    this.exitData(ret);
};

Response.prototype.exitData = function(ret) {
    var json = JSON.stringify(ret);
    if (!this._res._headerSent) {
        this._res.header('Content-Type', 'application/json');
    }
    this.exitMsg(json, ret['code']);
};

Response.prototype.exitMsg = function(content, code) {
    var res = this._res;
    var req = this._req;
    code = code || CODE_SUCCESS;

    //必须是字符串
    if(typeof content != "string") {
        content = JSON.stringify(content);
    }

    //jquery jsonp callback处理
    if (req.query && req.query.callback) {
        if(/^jQuery(\d+)_(\d+)$/.test(req.query.callback)) {
            content = req.query.callback + '(' + content + ');';
        }
    }

    // 记录访问日志
    var objCallLog = new CallLog(this);
    objCallLog.logSelfCall(code, content);

    if (!res.finished) {
        res.write(content);
        res.end();
    }
};

module.exports = Response;