从HTML页面执行Nodejs脚本?
我目前正在使用Express.js创建我的网站。我的主服务器脚本称为index.coffee
。我还创建了一个脚本request.js
,该脚本发出GET请求并显示响应
console.log(list);
从控制台运行脚本时,我没有任何问题: node request.js
我的问题是:如何使页面上的“获取此列表”按钮通过在同一页面上显示列表(即request.js
在服务器上执行并显示结果)来响应单击?
app.js
/** * Module dependencies.
*/
var express = require('express')
, routes = require('./routes');
var app = module.exports = express.createServer();
// Configuration
app.configure(function(){
app.set('views', __dirname + '/views');
app.set ('view engine', 'coffee');
app.register('.coffee', require('coffeekup').adapters.express);
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(__dirname + '/public'));
});
app.configure('development', function(){
app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
});
app.configure('production', function(){
app.use(express.errorHandler());
});
app.get('/', function(req, res) {
res.render('index',{ layout: false });
});
app.listen(3000);
console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
索引咖啡
doctype 5html ->
head ->
body
p->“嘿”
回答:
我使用普通的JS而非咖啡脚本,因此这是每个Fosco注释(称为server.js
)的示例:
var express = require('express'), list = require('./request.js').Request; // see template
var app = express.createServer();
app.use(express.static(__dirname + '/public')); // exposes index.html, per below
app.get('/request', function(req, res){
// run your request.js script
// when index.html makes the ajax call to www.yoursite.com/request, this runs
// you can also require your request.js as a module (above) and call on that:
res.send(list.getList()); // try res.json() if getList() returns an object or array
});
app.listen(80);
编写index.html
文件,然后将其保存在/public
节点应用目录的子文件夹中(通过暴露在上方express.static
)。:
<html> <body>
<div id="button">Get this List</div>
<div id="response"></div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#button').click(function() {
// run an AJAX get request to the route you setup above...
// respect the cross-domain policy by using the same domain
// you used to access your index.html file!
$.get('http://www.yoursite.com/request', function(list) {
$('#response').html(list); // show the list
});
});
});
</script>
</body
</html>
如果将 request.js 作为模块包含在内,则可能如下所示:
var RequestClass = function() { // run code here, or...
};
// ...add a method, which we do in this example:
RequestClass.prototype.getList = function() {
return "My List";
};
// now expose with module.exports:
exports.Request = RequestClass;
node server.js
在您的服务器上运行。然后前往www.yoursite.com/index.html
以上是 从HTML页面执行Nodejs脚本? 的全部内容, 来源链接: utcz.com/qa/436214.html