我希望在服务器请求/响应上编译我的jade,这样我就可以对jade文件进行实时更改并实时查看,而不必每次都重新启动服务器。这是我到目前为止的假冒模型。
var http = require('http')
, jade = require('jade')
, path = __dirname + '/index.jade'
, str = require('fs').readFileSync(path, 'utf8');
function onRequest(req, res) {
req({
var fn = jade.compile(str, { filename: path, pretty: true});
});
res.writeHead(200, {
"Content-Type": "text/html"
});
res.write(fn());
res.end();
}
http.createServer(onRequest).listen(4000);
console.log('Server started.');
我希望自己清楚明白!
答案 0 :(得分:0)
您只在服务器启动时读取文件一次。如果你想让它读取更改,你必须根据要求阅读它,这意味着你的模型看起来更像:
function onRequest(req, res) {
res.writeHead(200, {
"Content-Type": "text/html"
});
fs.readFile(path, 'utf8', function (err, str) {
var fn = jade.compile(str, { filename: path, pretty: true});
res.write(fn());
res.end();
});
}
这样的东西每次都会读取文件,这对于开发来说可能没问题,但是如果只想要在更改内容时重新加载/处理文件,则可以使用文件监视器( fs.watch
可能符合此法案。)
像这样的东西(只是一个未经考验的例子):
var fn;
// Clear the fn when the file is changed
// (I don't have much experience with `watch`, so you might want to
// respond differently depending on the event triggered)
fs.watch(path, function (event) {
fn = null;
});
function onRequest(req, res) {
res.writeHead(200, {
"Content-Type": "text/html"
});
var end = function (tmpl) {
res.write(tmpl());
res.end();
};
if (fn) return end(fn);
fs.readFile(path, 'utf8', function (err, str) {
fn = jade.compile(str, { filename: path, pretty: true});
end(fn);
});
}