【node.js】http、url模块、设置路由

712 05-12

1. http模块

2. url模块

var http = require("http");
var url=require("url");
 
var server = http.createServer(function(req,res){
	//url.parse()可以将一个完整的URL地址，分为很多部分：host、port、pathname、path、query
	var pathname=url.parse(req.url).pathname;
	url.parse()第二个参数为true，就可以将所有的查询变为对象，直接打点调用
	var query=url.parse(req.url,true).query;
	var age=query.age;
 
	console.log("pathname:"+pathname);
	console.log("age:"+age);
 
	res.end();
});
 
server.listen(3000,"127.0.0.1");

3.设置路由req.url

var http = require("http");
 
var server = http.createServer(function(req,res){
	//得到地址栏的url
	var userurl = req.url;
	res.writeHead(200,{"Content-type":"text/html;charset=utf-8"});
 
	if (userurl.substr(0,9) == "/student/") {
		var studentid=userurl.substr(9);
		if (/^\d{10}$/.test(studentid)) {
			res.end("您要查询学生信息，id为"+studentid);
		} else {
			res.end("您输入的学生学号不正确");
		}
	} else if (userurl.substr(0,9) == "/teacher/") {
		var teacherid=userurl.substr(9);
		if (/^\d{6}$/.test(teacherid)) {
			res.end("您要查询老师信息，id为"+teacherid);
		}else{
			res.end("您输入的老师学号不正确");
		}
	}else{
		res.end("请检查url");
	}
});
 
server.listen(3000,"127.0.0.1");