Javascript NodeJS新增-TypeError:无法读取属性';电子邮件';未定义的
我是NodeJS新手,有以下错误: 我的代码非常简单。这是我的apps.js文件:Javascript NodeJS新增-TypeError:无法读取属性';电子邮件';未定义的,javascript,node.js,typeerror,ejs,body-parser,Javascript,Node.js,Typeerror,Ejs,Body Parser,我是NodeJS新手,有以下错误: 我的代码非常简单。这是我的apps.js文件: var express = require('express'); var mysql = require('mysql'); var body_parser = require('body-parser'); var app = express(); app.set("view engine", "ejs"); app.set(body_parser.urlencod
var express = require('express');
var mysql = require('mysql');
var body_parser = require('body-parser');
var app = express();
app.set("view engine", "ejs");
app.set(body_parser.urlencoded({extended: true}));
var connection = mysql.createConnection({
host: 'localhost',
user: 'root',
database: 'join_us'
});
app.get("/", function(req, res){
var q = "SELECT COUNT(*) AS count FROM users";
connection.query(q, function(err, results){
if (err) throw err;
var count = results[0].count;
res.render("home", {count: count});
});
});
app.post("/register", function(req, res){
var person = {
email: req.body.email
};
connection.query('INSERT INTO users SET ?', person, function(err, result) {
if (err) throw err;
res.redirect("/");
});
});
app.listen(3000, function(){
console.log("Server running on 3000!");
});
这是my home.ejs文件:
<h1>JOIN US</h1>
<p class="lead">Enter your email to join <strong><%= count %></strong>
others on our waitlist. We are 100% not a cult. </p>
<form method="POST" action='/register'>
<input type="text" class="form" name="email" placeholder="Enter Your Email">
<button>Join Now</button>
</form>
我知道已经有一些类似的问题,但没有一个答案对我有用。谢谢:)诸如
主体解析器
之类的中间件应该使用use()
方法设置,而不是set()
,该方法用于其他类型的应用程序配置目的
因此,替换这一行:
app.set(body_parser.urlencoded({extended: true})); // incorrect
与:
app.set(body_parser.urlencoded({extended: true})); // incorrect
app.use(body_parser.urlencoded({extended: true})); // correct