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node.js - Nodejs + Expressjs + EJS + Mongodb

转载 作者：太空宇宙 更新时间：2023-11-04 02:05:09 25 4
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我是 Nodejs 和 mongodb 的新手，尝试将数据插入数据库并在提交表单时获取 404。不确定代码中有什么问题。任何帮助，将不胜感激。这是我的代码，如下所示。

App.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var mongo = require('mongodb');

var index = require('./routes/index');
var restaurant = require('./routes/restaurant');
var shopping = require('./routes/shopping');
var hotel = require('./routes/hotel');
var aboutus = require('./routes/about');
var event = require('./routes/event');
var admin = require('./routes/admin');



var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', index);
app.use('/restaurant',restaurant);
app.use('/shop',shopping);
app.use('/hotel',hotel);
app.use('/about',aboutus);
app.use('/event',event);
app.use('/admin',admin);
app.use('/insert',admin);
app.use('/get-data',admin);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Page Not Found');
  err.status = 404;
  next(err);
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;

admin.js

var express = require('express');
var router = express.Router();
var mongo = require('mongodb');
var mongoClient = mongo.MongoClient;
var assert = require('assert');

var url = 'mongodb://localhost:27017/aligarhcity';

/* GET home page. */
router.get('/', function(req, res, next) {
    res.render('admin', { title: 'Aligarh City'});
});

//READ THE DATA FROM DATABASE
router.get('/get-data', function(req,res,next){
    var resultArray = [];
    mongoClient.connect(url,function (err,db) {
    assert.equal(null,err);
    var cursor = db.collection('shopping').find();
    cursor.forEach(function(doc,err){
        assert.equal(null,err);
        resultArray.push(doc);
    },function () {
        db.close();
        res.render('/admin',{item:resultArray});
    });
});
});

//iNSERT THE DATA IN THE DATABASE
router.post('/insert', function(req,res,next){
    var shop = {
     shop_name:req.body.shop_name,
     shop_address:req.body.shop_address,
     shop_city:req.body.shop_city,
     shop_zip:req.body.shop_zip,
     shop_email:req.body.shop_email,
     shop_phone:req.body.shop_phone,
     shop_rating_5: '10',
     shop_rating_4: '10',
     shop_rating_3: '10',
     shop_rating_2: '10',
     shop_rating_1: '10'
 };
 console.log(shop_name,shop_city,shop_address,shop_zip,shop_email,shop_phone);
 mongoClient.connect(url,function (err,db) {
     assert.equal(null,err);
     db.collection('shopping').insertOne(shop,function (err, result) {
        assert.equal(null,err);
        console.log('Item Inserted Successfully');
        db.close();
     });
 });
 res.redirect('/');
});

module.exports = router;

Admin.ejs

<!DOCTYPE html>
<html>
<head>
    <title><%=title%></title>
    <link rel='stylesheet' href='/stylesheets/style.css' />
</head>
<body bgcolor="White" height="100%">
<table height="100%" width="100%" border=0>
    <tr width="100%">
        <td width="100%" height="100%">
            <table width="100%" height="100%"  background="/images/city.gif" border=0>
                <tr width="100%" height="100%">
                    <td width="100%" height="100%">
                        <% include template/header.ejs%>
                        <h1 align="center"><img src="/images/aligarh.png"  height="450" width="1000"></h1>
                    </td>
                </tr>
            </table>
        </td>
    </tr>
    <tr width="100%">
        <td width="100%">
            <div>
            <form action="/insert" method="post">
                <table width="30%" border="1">
                    <tr>
                        <td>
                            <label for="shop_name">Shop Name:</label>
                        </td>
                        <td align="left">
                            <input type="text" id="shop_name" name="shop_name" placeholder="Enter your shop name" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <label for="shop_address">Shop Address</label>
                        </td>
                        <td align="left">
                            <input type="text" id="shop_address" name="shop_address" placeholder="Enter your shop address" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <label for="shop_city">Shop City</label>
                        </td>
                        <td align="left">
                            <input type="text" id="shop_city" name="shop_city" placeholder="Enter your shop city" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <label for="shop_zip">Shop Zip</label>
                        </td>
                        <td align="left">
                            <input type="text" id="shop_zip" name="shop_zip" placeholder="Enter your shop zip" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <label for="shop_email">Shop Email</label>
                        </td>
                        <td align="left">
                            <input type="text" id="shop_email" name="shop_email" placeholder="Enter your shop email" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <label for="shop_phone">Shop Phone</label>
                        </td>
                        <td align="left">
                            <input type="text" id="shop_phone" name="shop_phone" placeholder="Enter your shop phone" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <input type="submit" value="Submit"/>
                        </td>
                    </tr>
                </table>
            </form>
            </div>
        </td>
    </tr>
    <tr>
        <td>
            <table border="1">
                <tr>
                    <td>
                        <a href="/get-data"> Load Data</a>
                    </td>
                </tr>
                <tr>
                    <td>
                       <%
                        var item=[];
                        item.forEach(function (items) { %>
                        <li>
                            <%=items.shop_name%> <br>
                            <%=items.shop_address%> <br>
                            <%=items.shop_zip%>
                        </li>

                       <% })
                        %>
                    </td>
                </tr>
            </table>
        </td>
    </tr>
</table>
</body>
</html>

最佳答案

404主要来自服务器，检查您的快速实现，您尝试访问的路由是否以代码实现

关于node.js - Nodejs + Expressjs + EJS + Mongodb，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44601005/

25 4 0
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