javascript - Nodejs - 多个发布请求

Question

我已经使用 Nodejs 创建了一个小型快速服务器，目前我能够处理单个发布请求 - 以检查用户是否存在。

我需要合并一个额外的发布请求，这将允许我注册一个新用户。注册请求来自一个单独的 HTML 页面，其中包含一个标准注册表格。

鉴于我看到的帖子标题示例都是相同的:

app.post('/', function (req, res)

我如何区分请求？

我的代码:

var express = require('express');
var bodyParser = require('body-parser');
var mysql = require('mysql');

var connection = mysql.createConnection({
    host: '127.0.0.1',
    user: 'root',
    password: '12345678',
    database: 'project_eclipse',
    port: 3306
});

connection.connect(function (err) {
    if (!err) {
        console.log("Database is connected ... \n\n");
    } else {
        console.log("Error connecting database ... \n\n");
    }
});

var app = express();


// instruct the app to use the `bodyParser()` middleware for all routes

app.use(bodyParser());
app.use(express.static(__dirname + '/public'));

app.post('/', function (request, response) {

    console.log('searching for user:  ', request.body.usr);
    //console.log(request.body.pass);
    var usr = request.body.usr;
    var pass = request.body.pass;

    connection.query('SELECT * FROM eclipse_users WHERE username=? AND password = md5(?)', [usr, pass], function (err, rows, fields) {

        if (!err) {
            //console.log('The solution is: ', rows);
            var n_rows = rows.length;
            console.log('number of rows returned: ', n_rows);
            if (n_rows == 1) response.json({
                msg: 'user exists'
            });
            else response.json({
                msg: 'user does not exist'
            });
        } else {
            console.log('Error while performing Query.');
            connection.end();
        }
    });
});

app.listen(80, "127.0.0.1");
console.log('Server running at http://127.0.0.1:80/');

Answer 1

变体 1，另一个 url:

app.post('/registration', function (req, res) {
    // ...
});

变体2，参数作用:

app.post('/:action', function (req, res) {
    if (req.param('action') === 'registration') {
        // ...
    }
});

变体 3，通过帖子执行操作:

app.post('/', function (req, res) {
    if (req.param('action') === 'registration') {
        // ...
    }
});