模块很类似于Java中的类，也是可以继承的，有自己的变量和方法
nj_dome.js
var http = require(‘http‘);
var User = require("./model/User");//导入user的模块
var Teacher = require("./model/Teacher");//导入teacher的模块
http.createServer(function (request, response) {
response.writeHead(200, {‘Content-Type‘: ‘text/html; charset=utf-8‘});
if(request.url!=="/favicon.ico"){
/*user = new User(1,"张三",20);//创建一个user并调用方法
user.enter();*/
teacher = new Teacher(2,"李老师",30);//创建一个teacher
teacher.enter();
teacher.teach(response);
response.end(‘ ‘);
}
}).listen(8000);
console.log(‘Server running at http://127.0.0.1:8000/‘);
user.js
function User(id,name,age){
this.id=id;
this.name=name;
this.age=age;
this.enter=function(){
console.log(this.name + "进入图书馆");
}
}
module.exports = User;
teacher.js继承了User的模块
var User = require("./User");
function Teacher(id,name,age){
User.apply(this,[id,name,age]);//继承user模块
this.teach=function(res){//新建自己的方法
res.write(this.name+"讲课");
}
}
module.exports = Teacher;
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读取路由中的方法获取字符串，利用字符串找对应的函数
如http://localhost:8000/login获取login 然后找对应的login函数
nj_router.js
var http = require(‘http‘);
var url = require(‘url‘);//node自带的URL
var router = require(‘./model/router‘);//导入函数文件
http.createServer(function (request, response) {
response.writeHead(200, {‘Content-Type‘: ‘text/html; charset=utf-8‘});
if(request.url!=="/favicon.ico"){
var pathname = url.parse(request.url).pathname;//获取路径名称
pathname = pathname.replace(/\//,""); //正则去掉/
console.log(pathname);
router[pathname](request,response);//根据路径名称获取到函数从而调用函数
response.end(‘ ‘);
}
}).listen(8000);
console.log(‘Server running at http://127.0.0.1:8000/‘);
router.js
module.exports={
login:function(req,res){
res.write("我是login方法");
},
zhuce:function(req,res){
res.write("我是注册方法");
}
}
