TypeError：Object＃<IncomingMessage>没有方法'render'

我正在开发一个简单的应用程序与node.js和expression，几乎一切都好，但我得到这个错误：

res.render("aggregatedCostList",{ ^ TypeError: Object #<IncomingMessage> has no method 'render' at /home/arpho/Projects/myBalance/routes/index.js:90:11 at /home/arpho/Projects/myBalance/node_modules/async/lib/async.js:116:25 at /home/arpho/Projects/myBalance/node_modules/async/lib/async.js:24:16 at /home/arpho/Projects/myBalance/routes/index.js:87:7 at /home/arpho/Projects/myBalance/node_modules/orientdb/lib/orientdb/db.js:539:24 at toRidsFromORIDsOfDocument (/home/arpho/Projects/myBalance/node_modules/orientdb/lib/orientdb/db.js:507:16) at toRidsFromORIDsOfDocuments (/home/arpho/Projects/myBalance/node_modules/orientdb/lib/orientdb/db.js:534:9) at Object.callback (/home/arpho/Projects/myBalance/node_modules/orientdb/lib/orientdb/db.js:302:9) at EventEmitter.Manager.readResponse (/home/arpho/Projects/myBalance/node_modules/orientdb/lib/orientdb/connection/manager.js:218:21) at Socket.<anonymous> (/home/arpho/Projects/myBalance/node_modules/orientdb/lib/orientdb/connection/manager.js:167:14) 

当我在提交表单后尝试访问list_purchase时，发生在post和get中。

这是我的app.js的 isan摘录：

  app.set('port', process.env.PORT || 3000); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.favicon()); app.use(express.logger('dev')); app.use(express.bodyParser()); app.use(express.methodOverride()); app.use(express.cookieParser('your secret here')); app.use(express.session()); app.use(app.router); app.use(express.static(path.join(__dirname, 'public'))); //app.get('/new_post', routes.new_post_form); //app.post('/new_post', routes.new_post); app.get('/list_purchase',routes.list_purchase) app.post('/list_purchase',routes.filtered_list_purchase) 

这是我的index.js的摘录：

  exports.filtered_list_purchase = function(res,req){ debug('filtering') debug(req.req.body) range = req.req.body.range aggr = req.req.body.aggr var intervals = Aggregation.makeIntervals(Aggregation,range,aggr) debug(intervals) for(var i =0;i<intervals.length;i++){ debug('dentro il for') debug(intervals[i]) //aggiungo agli items di intervals il campo query var item = intervals[i] var where = Aggregation.makeClausolaWhere(Aggregation,item) intervals[i].query = "select sum(price) as sum from purchase "+where intervals[i].inizio = Aggregation.getDate(Aggregation,intervals[i].inizio) intervals[i].fine = Aggregation.getDate(Aggregation,intervals[i].fine) } debug(intervals) var count = 0 function iterator(item,next){module.db.command(item.query,function(e,o){if(e) {return console.dir(e)} delete item.query //cancello il campo per risparmiare banda count += 1 if (o.length>0){item.subTotal = o[0].sum}else{item.subTotal = 0} next(e,o)}) } async.each(intervals,iterator,function(err){if(err){return console.dir(err)} res.render("aggregatedCostList",{ aggregation:Aggregation.aggregation.name[aggr], data:intervals }) }) } 

定义我的表单的模板：

costList.jade

扩展聚合块内容表thead th b Acquisto th b Prezzo th b Nota th b Data – each a in locals.purchases

  tr th a(href="/purchase/"+a['@rid']) p #{a.purchase} th p #{a.price} th p #{a.nota} th p #{a.data} p ----------------------------------------------------------------------------------------------------------- p Totale: #{locals.totale} a(href="/new_purchase") aggiungi acquisto 

aggregation.jade：

 extends layout block aggregation form(action=locals.next,method="post") p label lasso temporale input(name="range",type="text") p label aggregazione select(name='aggr') option(value='d') day option(value='w') week option(value='m') month option(value='y') year input(type="submit",value='aggrega') 

对我来说是正确的，我无法find在我的代码中肯定的错误

Answer 1

 function(res,req) 

你的参数是向后的。

Express通过请求，然后是响应。