在客户端Html文件中Form代码如下:
在服务器端处理'/test' POST请求的代码如下:
var bodyParser = require('body-parser');
// ...
// create application/json parser
var jsonParser = bodyParser.json()
// create application/x-www-form-urlencoded parser
var urlencodedParser = bodyParser.urlencoded({ extended: false })
// ...
//
// request from form of the html file
//
app.post('/test', urlencodedParser, function(req, res) {
if (!req.body) return res.sendStatus(400);
console.log('Username: ' + req.body.username);
console.log('Password: ' + req.body.password);
res.send('Welcome, ' + req.body.username);
});
在客户端使用Node.js发送Form数据的代码
const http = require('http');
var data = {
username: 'foo',
password: "test"
};
var postData = require('querystring').stringify(data);
console.log( postData );
function form()
{
var options = {
method: "POST",
host: "localhost",
port: 80,
path: "/test",
headers: {
"Content-Type": 'application/x-www-form-urlencoded',
"Content-Length": postData.length
}
};
var body = '';
var request = http.request( options, function(res) {
// show results
console.log('STATUS: ' + res.statusCode);
res.setEncoding('utf8');
res.on('data', function(chunk) {
body += chunk;
console.log('BODY: ' + chunk);
});
res.on('end', function(err) {
console.log( ' complete.');
});
});
request.on("error", function(e) {
console.log('upload Error: ' + e.message);
})
request.write( postData );
request.end();
}
form();
客户端使用jQuery的 $.ajax post数据,
Post Data
client.js
$(document).ready(function(){
//try joining the server when the user clicks the connect button
$("#startButton").click(function () {
var filename = $("#input[name=filename]").val();
$.ajax({
type: 'POST',
url: "/update",
// dataType: "jsonp",
data: { "filename": filename} ,
jsonpCallback: 'callback',
success: function (data) {
// ...
},
error: function (xhr, status, error) {
console.log('Error: ' + error.message);
},
});
});
});
//
// Modules
var express = require('express');
var bodyParser = require('body-parser');
//
// Global variables
var app = express();
// body parser
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
/* POST /update listing. */
app.post('/update', function(req, res, next) {
// Checking require
if (!req.body) return res.sendStatus(400);
console.log('filename: ' + req.body.filename);
res.redirect('./');
});
参考文献:
https://github.com/expressjs/body-parser