问未定义包含express.js和节点0.10.29的Post

EN

var express = require('express');
var app = express();

app.configure(function(){
   app.use(express.json());
   app.use(express.urlencoded());
   app.use(express.methodOverride());
   app.use(app.router);
});

module.exports.start = function(){

  app.get('/', function(req, res){
      console.log("params: " + req.params);
      res.send("got it");
  });

  app.post('/test', function(req, res){
      console.log("Post test: " + req.body.name);//this is undefined
      res.send(req.body);
  });

  app.set('port', process.env.Port || 3000);
  app.listen(app.get('port'), function(){
      if (process.env.NODE_ENV == 'production') {
          console.log("listening on port: " + app.get('port'));
      }
      console.log("listening on port: " + app.get('port'));
  });