- html文件代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>我的node.js首页</title>
</head>
<body>
</body>
</html>
- 通过buffer流读取html文件
var fs = require('fs');
function wuwa(callback)
{
fs.open('.././webpage/firstpage.html','r',function (err,fd) {
var readbyte = Buffer.alloc(1024);
var offset = 0;
var len = readbyte.length;
var readposition = null;
function saiwa(callback) {
fs.read(fd, readbyte, offset, len, readposition, function (err, readBytes) {
if (err) throw new err('~oh,no');
//console.log(readbyte.slice(0, readBytes).toString('utf8'));
var ret = readbyte.slice(0, readBytes).toString('utf8');
callback(ret);
})
}
saiwa(function (data) {
callback(data)
})
})
}
module.exports = wuwa;
- 新建一个文件调取buffer读取定义好的函数
var weirwa=require('./readwebpage');
console.log(weirwa);
weirwa(function (data) {
console.log(data);
});
输出结果：
[Function: wuwa]
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>我的node.js首页</title>
</head>
<body>
</body>
</html>
Process finished with exit code 0
- 创建server返回结果
var http = require('http');
var url = require('url');
var weirwa=require('./readwebpage');
http.createServer(function (req,res) {
res.writeHead(200,{'content-Type':'text/plain; charset=UTF-8'});
weirwa(function (data) {
res.end(data);
});
console.log("url: "+url.parse(req.url));
}).listen(3000);
- 输出结果
