代码：https://github.com/fengchunjian/nodejs_examples/tree/master/routerv5
//vim views/login.html
<html>
<head>
</head>
<body>
登录界面
</body>
</html>
//vim models/optfile.js
var fs = require('fs')
module.exports = {
readImg : function(path, res) {
fs.readFile(path, "binary", function(err, file) {
if (err) {
console.log(err);
return;
} else {
console.log("异步读取图片完成");
res.write(file, "binary");
res.end();
}
});
},
writefile : function(path, data, recall) {
fs.writeFile(path, data, function(err) {
if (err) {
throw err;
}
console.log("异步写文件完成");
recall("异步写文件完成");
});
},
readfile : function(path, recall) {
fs.readFile(path, function(err, data) {
if (err) {
console.log(err);
} else {
recall(data);
}
});
console.log("异步读文件完成");
},
}
//vim models/router.js
var optfile = require("./optfile");
function getRecall(req, res) {
res.writeHead(200, {'Content-Type':'text/html;charset=utf-8'});
function recall(data) {
res.write(data);
res.end();
}
return recall;
}
module.exports = {
readImg : function(path, res) {
res.writeHead(200, {'Content-Type':'image/jpeg'});
optfile.readImg("./imgs/nodejs.jpg", res);
},
writefile : function(req, res) {
recall = getRecall(req, res);
optfile.writefile("./file.txt", "异步文件写入", recall);
},
login : function(req, res) {
recall = getRecall(req, res);
optfile.readfile("./views/login.html", recall);
},
zhuce : function(req, res) {
recall = getRecall(req, res);
optfile.readfile("./views/zhuce.html", recall);
}
}
//vim routercall.js
var http = require('http');
var url = require('url');
var router = require('./models/router');
http.createServer(function (request, response) {
if(request.url!=="/favicon.ico") {
var pathname = url.parse(request.url).pathname;
pathname = pathname.replace(/\//, '');
router[pathname](request, response);
console.log("主程序执行完毕");
}
}).listen(8000);
console.log('Server running at http://127.0.0.1:8000/');
node routercall.js
Server running at http://127.0.0.1:8000/
异步读文件完成
主程序执行完毕
主程序执行完毕
异步读取图片完成
