从MySQL服务器获取到Node.js程序后，如何通过response.write方法写入数据？

Question

I'm developing a small web app by NodeJS and I'm stuck at this point. Please review my code:

var config = require('./config.json');
var mysql = require('mysql');
var http = require('http');
var url = require('url');

http.createServer(function(request, response){
    var path = url.parse(request.url).pathname;
    if (path=='/ajax.html') {
        displayData(function(result) {
             console.log('Result' + result);
             response.write(result, 'utf8');
        });
    }
});


function displayData(callback) {
    var connection = mysql.createConnection({
        host     : config.host,
        user     : config.user,
        password : config.password,
        database : config.database,
    });
    connection.connect();
    var query = connection.query("SELECT name FROM `table` WHERE `id` = '1'");  
    query.on('result', function(row) {
        callback(row.name);
    });
}

I tested and realised that the response object in displayData is not itself anymore so that I am just able to view my result data in console.log and can not use response.write to view it in browser.

Please help what should I do to solve this problem?

Answer 1

完成向其中写入数据后，您必须调用response.end() 。