使用 node.js 和 express 发布 JQuery Ajax 请求
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/14061644/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
JQuery Ajax post request with node.js and express
提问by MrMangado
I was trying to make AJAX post request with JQuery to my Node.JS server in Node.JS and Express, but it doesn't works!
我试图在 Node.JS 和 Express 中使用 JQuery 向我的 Node.JS 服务器发出 AJAX 发布请求，但它不起作用！
var express = require('express')
var app = express();
app.listen(8888);
app.configure(function(){
app.use(express.bodyParser());
app.set('views',__dirname + '/views');
app.set('view engine', 'ejs');
app.use(express.static(__dirname + '/public'));
app.use(express.cookieParser());
app.use(app.router);
});
app.get('/', function (req, res){
res.render('ajax.ejs');
});
app.post('/ajax', express.bodyParser(), function (req, res){
console.log(req);
console.log('req received');
res.redirect('/');
});
And this is the ajax.ejs:
这是ajax.ejs：
<html>
<head>
<script src="http://code.jquery.com/jquery-1.6.2.min.js"></script>
<script type="text/javascript">
$('#enter').click(function(){
$.ajax({
url: '/ajax',
type: 'POST',
cache: false,
data: { field1: 1, field2: 2 },
success: function(data){
alert('Success!')
}
, error: function(jqXHR, textStatus, err){
alert('text status '+textStatus+', err '+err)
}
})
});
</script>
</head>
<body>
<form>
<input type="button" id="enter" value="Enter">
</form>
</body>
</html>
When the ajax.ejsis loaded, there isn't any output in the console, so, the post request didn't work. What can I do?
当ajax.ejs被加载，没有在控制台的任何输出，因此，POST请求没有工作。我能做什么？
Thanks advance!
先谢谢了！
回答by asgoth
I found your problem. You need to move your script from your head to your body (after the form tag):
我发现了你的问题。您需要将您的脚本从您的头部移动到您的身体（在 form 标签之后）：
...
</form>
<script type="text/javascript">
$('#enter').click(function(){
...
</script>
</body>
回答by sreepurna
The below code works as per the new releases.
以下代码根据新版本工作。
server.js
服务器.js
var express = require('express')
var app = express();
var bodyparser = require('body-parser');
var urlencodedparser = bodyparser.urlencoded({extended:false})
app.set('views',__dirname + '/views');
app.set('view engine', 'ejs');
app.use(express.static(__dirname + '/public'));
app.use(express.cookieParser());
app.get('/', function (req, res){
res.render('ajax.ejs');
});
app.post('/ajax', urlencodedparser, function (req, res){
console.log(req);
console.log('req received');
res.redirect('/');
});
app.listen(8888);
ajax.ejs
ajax.ejs
<html>
<head>
<script src="http://code.jquery.com/jquery-1.6.2.min.js"></script>
</head>
<body>
<form>
<input type="button" id="enter" value="Enter">
<script type="text/javascript">
$('#enter').click(function(){
$.ajax({
url: '/ajax',
type: 'POST',
cache: false,
data: { field1: 1, field2: 2 },
success: function(data){
alert('Success!')
}
, error: function(jqXHR, textStatus, err){
alert('text status '+textStatus+', err '+err)
}
})
});
</script>
</form>
</body>
</html>
