nodejs中使用velocity

学习nodejs框架发现都是jade，不复杂，也不想学，如果会velocity就不用再学jade了。
可以直接在nodejs中使用velocity，因为npm里有velocityjs。
用express建一个项目express demo目录如下：

│  app.js            //node app.js 启动
│  package.json
│
├─public
│  ├─css
│  ├─img
│  └─js
├─routes
│      index.js
│      user.js
└─views              //vm模板
        footer.vm
        head.vm
        index.vm
        mainBody.vm

改package.json(默认是jade，其实不改也没关系)

{
  "name": "cjx",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node app.js"
  },
  "dependencies": {
    "express": "3.4.3",
    "jade": "*",
    "velocityjs":"0.4.2"
  }
}

稍改app.js就行

/**
 * Module dependencies.
 */
var express = require('express')		//express
var velocity = require('velocityjs')	//velocityjs
var routes = require('./routes')
var user = require('./routes/user')
var http = require('http')				//
var fs = require('fs')					//
var path = require('path')				//
var routes = require('./routes')		//
var app = express()						//app
var cwd = process.cwd()					//cwd
console.log("cwd="+cwd);

// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'vm');
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')));

//全用vm模板引擎
app.engine('vm',function(path,options,fn){
	var template = fs.readFileSync(path).toString();
	var macros = {
	    parse: function(file) {
		    var template = fs.readFileSync(cwd + '/views/' + file).toString()
			return this.eval(template);
	    }
	}
	try{
		fn(null, velocity.render(template, options, macros))
	}catch(err){
		console.log(err);
		fn(err)
	}
});//end engine	

app.use(express.static(cwd+"/public"));
app.use(express.logger());

app.get('/index', routes.index);


//设端口
var port = process.argv[2];
port = /^\d{4,5}$/.test(port) ? port :app.get('port');
console.log('Listening on', port);

http.createServer(app).listen(port, function(){
	console.log('Server listening on port ' + port);
}).on('error',function(err){
	console.log('错了',err.code);
});

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