Wizzer.cn

适应场景：Sails框架、微信公众号数据配置在数据库中，支持多个公众号。
1、Model定义（Waterline）
文件路径：/api/models/wx/Wx_config.js

/**
 * Created by root on 10/25/15.
 */
var moment = require('moment');
module.exports = {
  schema: true,
  autoCreatedAt: false,
  autoUpdatedAt: false,
  attributes: {
    id: {
      type: 'integer',
      autoIncrement: true,
      primaryKey: true
    },
    appname: {
      type: 'string',
      required: true
    },
    ghid: {//原始ID
      type: 'string',
      unique: true,
      required: true
    },
    appid: {
      type: 'string',
      unique: true,
      required: true
    },
    appsecret: {
      type: 'string',
      unique: true,
      required: true
    },
    encodingAESKey:{
      type: 'string',
      unique: true,
      required: true
    },
    token: {
      type: 'string',
      unique: true,
      required: true
    },
    access_token: {
      type: 'string'
    },
    expire_time: {
      type:'integer',
      defaultsTo:function(){
        return 0;
      }
    },
    createdBy:{
      type: 'integer'
    },
    createdAt:{
      type:'integer',
      defaultsTo:function(){
        return moment().format('X');
      }
    }
  }
};

2、Sails默认不支持微信xml post，改造之
文件路径：/config/http.js

rawParser: function(req, res, next) {
      switch(req.headers['content-type']) {
        case 'text/xml':
          require('body-parser').raw({ type: 'text/xml' })(req, res, next);
          break;
        default :
          next();
      }
    },
    order: [
      'startRequestTimer',
      'cookieParser',
      'session',
      'myRequestLogger',
      'rawParser',
      'bodyParser',
      'handleBodyParserError',
      'compress',
      'methodOverride',
      'poweredBy',
      '$custom',
      'router',
      'www',
      'favicon',
      '404',
      '500'
    ],

3、控制类
文件路径：/api/controllers/open/WeixinController.js
微信公众号后台配置路径：http://127.0.0.1/open/weixin/api?wxid=1

/**
 * Created by root on 10/25/15.
 */
module.exports = {
  api: function (req, res) {
    var id = req.query.wxid;
    Wx_config.findOne(id).exec(function (err, conf) {
      if (err)return res.send(200, 'fail');
      if (req.body) {
        WeixinService.loop(req, function (data) {
          if (data.type = 'text') {//用户发送纯文本
            var msg = {toUserName: data.openid, fromUserName: conf.ghid, content: 'Node.js Test...'};
            WeixinService.sendTextMsg(res, msg);//向用户回复消息
          }
        });
      }
      //签名
      if (WeixinService.checkSignature(req, conf.token)) {
        res.send(200, req.query.echostr);
      } else {
        res.send(200, 'fail');
      }
    });
  }
};

4、微信服务工具类
文件路径：/api/services/WeixinService.js

/**
 * Created by root on 10/26/15.
 */
var sha1 = require('sha1'), xml2js = require('xml2js');
module.exports = {
  /**
   * 签名验证
   * @param req
   * @param token
   * @returns {boolean}
   */
  checkSignature: function (req, token) {
    var signature = req.query.signature,
      timestamp = req.query.timestamp,
      nonce = req.query.nonce,
      echostr = req.query.echostr;
    // 按照字典排序
    var array = [token, timestamp, nonce];
    array.sort();
    // 连接
    var str = sha1(array.join(""));
    // 对比签名
    return str == signature;
  },
  /**
   * 监听用户消息
   * @param req
   * @param callback
   */
  loop: function (req, callback) {
    var body = req.body.toString('utf-8');
    var data = {};
    xml2js.parseString(body, function (err, json) {
      if (err) {
      } else {
        console.log('json::' + JSON.stringify(json));
        data.type = json.xml.MsgType;
        data.openid = json.xml.FromUserName;
        if (data.type == 'text') {
          data.txt = json.xml.Content;
        } else if (data.type == 'image') {
          data.pic = json.xml.PicUrl;
        }
        return callback(data);
      }
    });
  },
  /**
   * 发送文本消息
   * @param res
   * @param msg
   */
  sendTextMsg: function (res, msg) {
    var time = Math.round(new Date().getTime() / 1000);

    var funcFlag = msg.funcFlag ? msg.funcFlag : 0;

    var output = "" +
      "<xml>" +
      "<ToUserName><![CDATA[" + msg.toUserName + "]]></ToUserName>" +
      "<FromUserName><![CDATA[" + msg.fromUserName + "]]></FromUserName>" +
      "<CreateTime>" + time + "</CreateTime>" +
      "<MsgType><![CDATA[text]]></MsgType>" +
      "<Content><![CDATA[" + msg.content + "]]></Content>" +
      "<FuncFlag>" + funcFlag + "</FuncFlag>" +
      "</xml>";

    res.type('xml');
    res.send(output);
  },
  /**
   * 发送图文消息
   * @param res
   * @param msg
   */
  sendNewsMsg: function (res, msg) {
    var time = Math.round(new Date().getTime() / 1000);
    var articlesStr = "";
    for (var i = 0; i < msg.articles.length; i++) {
      articlesStr += "<item>" +
        "<Title><![CDATA[" + msg.articles[i].title + "]]></Title>" +
        "<Description><![CDATA[" + msg.articles[i].description + "]]></Description>" +
        "<PicUrl><![CDATA[" + msg.articles[i].picUrl + "]]></PicUrl>" +
        "<Url><![CDATA[" + msg.articles[i].url + "]]></Url>" +
        "</item>";
    }

    var funcFlag = msg.funcFlag ? msg.funcFlag : 0;
    var output = "" +
      "<xml>" +
      "<ToUserName><![CDATA[" + msg.toUserName + "]]></ToUserName>" +
      "<FromUserName><![CDATA[" + msg.fromUserName + "]]></FromUserName>" +
      "<CreateTime>" + time + "</CreateTime>" +
      "<MsgType><![CDATA[news]]></MsgType>" +
      "<ArticleCount>" + msg.articles.length + "</ArticleCount>" +
      "<Articles>" + articlesStr + "</Articles>" +
      "<FuncFlag>" + funcFlag + "</FuncFlag>" +
      "</xml>";

    res.type('xml');
    res.send(output);
  }
};

Nodejs版本：0.12.7
Sails版本：0.11.0
require相关组件，记得安装。
参考项目1：https://github.com/node-webot/wechat-api
参考项目2：https://github.com/JeremyWei/weixin_api

Html：

姓名状态是否在线操作



用户名

datatables初始化：

var datatable;
  function initDatatable() {
    datatable = $('.datatable').DataTable({
      "processing": false,
      "serverSide": true,
      "select": true,
      "ordering": true,
      "language": {
        "url": "/plugins/datatables/cn.json"
      },
      "preDrawCallback": function () {
        sublime.closeLoadingbar($(".main-content"));
        sublime.showLoadingbar($(".main-content"));
      },
      "drawCallback": function () {
        sublime.closeLoadingbar($(".main-content"));
      },
      "ajax": {
        "url": "/private/sys/user/data",
        "type": "post",
        "data": function (d) {
          d.unitid = $('#unitid').val();
          d.loginname=$('#loginname').val();
          d.nickname=$('#nickname').val();
        }
      },
      "order":[[0,"desc"]],
      "columns": [
        {"data": "loginname", "bSortable": true},
        {"data": "nickname", "bSortable": true},
        {"data": "disabled", "bSortable": true},
        {"data": "online", "bSortable": true}
      ],
      "columnDefs": [
        {
          "render": function (data, type, row) {
            return 'html.....';
          },
          "targets": 4
        },
        {
          "render": function (data, type, row) {
            if (data) {
              return '';
            } else {
              return '';
            }
          },
          "targets": 3
        },
        {
          "render": function (data, type, row) {
            if (!data) {
              return '';
            } else {
              return '';
            }
          },
          "targets": 2
        }
      ]
    });
    datatable.on('click', 'tr', function () {
      $(this).toggleClass('selected');
    });
    $("#searchBtn").on('click',function(){
      datatable.ajax.reload(null, false);
    });
  }

重新加载数据：

datatable.ajax.reload(null, false);//当前页
datatable.ajax.reload();//回到第一页

排序：通过后台参数 order数组得到dir:asc/desc，通过order的column下标，获取columns数组中的data字段名，两者结合写排序条件
后台把所有参数打印出来，你就知道代码应该怎么写了……over

响应的数据格式：

{
              "draw": draw,
              "recordsTotal": pageSize,
              "recordsFiltered": count,
              "data": list
            }

Nodejs 后端完整代码：

data: function (req, res) {
    var pageSize = parseInt(req.body.length);
    var start = parseInt(req.body.start);
    var page = start / pageSize + 1;
    var draw = parseInt(req.body.draw);
    var unitid = req.body.unitid || 1;
    var loginname = req.body.loginname || '';
    var nickname = req.body.nickname || '';
    var order = req.body.order || [];
    var columns = req.body.columns || [];
    var sort = {};
    var where = {unitid: unitid};
    if (loginname) {
      where.loginname = {'like':'%'+loginname+'%'};
    }
    if (nickname) {
      where.nickname = {'like':'%'+nickname+'%'};
    }
    if (order.length > 0) {
      sort[columns[order[0].column].data] = order[0].dir;
    }
    Sys_user.count(where).exec(function (err, count) {
      if (!err && count > 0) {
        Sys_user.find(where)
          .sort(sort)
          .paginate({page: page, limit: pageSize})
          .exec(function (err, list) {
            return res.json({
              "draw": draw,
              "recordsTotal": pageSize,
              "recordsFiltered": count,
              "data": list
            });
          });
      } else {
        return res.json({
          "draw": draw,
          "recordsTotal": pageSize,
          "recordsFiltered": 0,
          "data": []
        });
      }
    });
  },