本文实例为大家分享了基于Express框架使用POST传递Form数据的具体代码，供大家参考，具体内容如下
客户端使用Form发送数据
在客户端Html文件中Form代码如下：
<!-- POST test --> <form action=\"/test\" method=\"post\" id=\"foo\" > <input type=\"text\" name=\"username\"> <input type=\"password\" name=\"password\"> <input type=\"submit\"> </form>
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);
});
客户端使用Node.js发送数据
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发送数据
客户端使用jQuery的 $.ajax post数据，
<!DOCTYPE html> <html> <head> <meta charset=\"utf-8\"> <title>Post Data</title> <script src=\"jquery.min.js\" type=\"text/javascript\"></script> <script src=\"client.js\" type=\"text/javascript\"></script> </head> <body> <!-- POST test --> <form action=\'/update\' method=\'post\' id=\'foo\' > Parameters <table border=\"0\"> <tr> <td> File Name</td> <td> <input type=\"text\" name=\"filename\" value = \"foo.txt\" /></td> </tr> </table> </form> <button name=\"button1\" id=\'startButton\' > Update</button> </body> </html>
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);
},
});
});
});
server端使用node.js解析数据
//
// 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(\'./\');
});
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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