Javascript NodeJS req.body JSON不存在,但没有值
index.js:Javascript NodeJS req.body JSON不存在,但没有值,javascript,jquery,node.js,Javascript,Jquery,Node.js,index.js: var express = require('express'); var server = express(); var bodyParser = require('body-parser'); server.use(express.static('public')); server.use(bodyParser.json()); server.post('/saveentry', (req, res) => { console.log(req.body)
var express = require('express');
var server = express();
var bodyParser = require('body-parser');
server.use(express.static('public'));
server.use(bodyParser.json());
server.post('/saveentry', (req, res) => {
console.log(req.body);
res.send("Eintrag gespeichert");
});
server.listen(80, 'localhost');
index.html:
<html>
<head>
<title>Gästebuch</title>
</head>
<body>
<div id="guestbook"></div>
<input type="text" id="entry" name="entry">
<button id="submit">Senden</button>
<script
src="https://code.jquery.com/jquery-3.3.1.min.js"
integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
crossorigin="anonymous"></script>
<script>
var formData = {
entry: $("#entry").val()
}
$('#submit').click(function()
{
$.ajax({
type: 'POST',
url: '/saveentry',
data: JSON.stringify(formData),
dataType: "text",
contentType : "application/json",
success: function (data) {
console.log(data);
}
});
});
</script>
</body>
</html>
Gästebuch
森登
var formData={
分录:$(“#分录”).val()
}
$(“#提交”)。单击(函数()
{
$.ajax({
键入:“POST”,
url:“/saveentry”,
数据:JSON.stringify(formData),
数据类型:“文本”,
contentType:“应用程序/json”,
成功:功能(数据){
控制台日志(数据);
}
});
});
这是我按下“Senden”时控制台中的结果:
{条目:''}
如何获取表单中输入的文本?我还能试什么?我没有在线找到解决方案。您应该从回调函数中的输入接收值:
$('#submit').click(function() {
var formData = {
entry: $("#entry").val()
};
$.ajax({
type: 'POST',
url: '/saveentry',
data: JSON.stringify(formData),
dataType: "text",
contentType : "application/json",
success: function (data) {
console.log(data);
}
});
});