Question

我正在使用Node JS，为学校项目构建应用程序，其中图片必须由Mysql数据库上传，编辑和删除。我已经管理了上传页面，图片可以编辑，但我无法使用DELETE查询成功。在我的网页上，用户必须按删除按钮才能删除包含驱动程序，团队等数据的图片行。这是我的代码：

INDEX.EJS

<% if(pictures.length){ %>     
            <table style="width:100%">
                <tr>
                    <th>Image</th>
                    <th>Driver</th>
                    <th>Team</th>
                    <th>Location</th>                       
                    <% if(admin) { %>
                    <th>Edit</th>
                    <th>Delete</th>
                    <% } %>
                </tr>
    <% } %>
        <% for (var i = 0; i < pictures.length; i++) { %>
            <tr>
                <td><img src="images/<%= pictures[i].image %>" /></td>
                <td><%= pictures[i].driver %></td>
                <td><%= pictures[i].team %></td>
                <td><%= pictures[i].location %></td>                    
                <% if(admin) { %>
                <td><a href="/edit/<%= pictures[i].id %>" >Edit</a></td>
                <td><a href="/edit/delete/<%= pictures[i].id %>">Delete</a></td>
                <% } %>

    <% } %>
            </tr>                   
            </table>    

</div>

EDIT.JS

router.get('/delete/:id', function(req, res) {
  var id = req.params.id;
  req.getConnection(function (err, connection) {
    connection.query("DELETE FROM pictures WHERE id = ? ", [id], function(err, results) {
         res.redirect('/');
         console.log('Some data has been deleted')
    });
  });
});

APP.JS

var express = require('express'),
    path = require('path'),
    session = require('express-session'),
    bodyParser = require('body-parser'), // Anders kan er geen POST worden gebruikt, de POST zit in de body
    mysql = require('mysql'),
    myConnection = require('express-myconnection');

// Set up de database
var dbOptions = {
    host: 'localhost',
    user: 'fcdeen_user',
    password: 'wEvGT9ctm8KUxdTD',
    database: 'fcdeen'
};

// Definieer de routers
var indexRoutes = require('./routes/index'),    
    loginRoutes = require('./routes/login'),
    uploadRoutes = require('./routes/upload'),
    editRoutes = require('./routes/edit');

// Applicatie wordt aangemaakt
var app = express();

// Gebruik de session
app.use(session({
  secret: "Its_A_veRy_DarK_SecreT",
  resave: false,
  saveUninitialized: true
}));

// Voeg de bodyparser middleware aan de app toe, handelt de POST requests af
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));

// Voeg connectie middleware toe aan app
app.use(myConnection(mysql, dbOptions, 'single'));

// Set de view engine op EJS
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// Hierdoor weet express welke static file er gebruikt moet worden
app.use(express.static('public'));

// Verbind de Routers met de routes
app.use('/', indexRoutes);
app.use('/login', loginRoutes);
app.use('/upload', uploadRoutes);
app.use('/edit', editRoutes);

app.get('/', function(req, res) {
  res.render('index');
});

// Start de server, App luistert naar poort 8080
app.listen(8080);
console.log('Launch at port 8080');

当我按下删除按钮时，我收到此错误：

无法GET / 10（10是我要删除的行的ID）

使用Node js删除网站上的行

0 个答案: