当我运行我的 server.js 时，就像
...
var app = require('express')(), mysql = require('mysql');
var mysqlConn = mysql.createConnection(connParam);
var controllers = {mysql: require('./controller/mysql.js')(app, mysqlConn, null)};
...
和控制器/mysql.js
...
module.exports = function (app, conn, data) {
...
app.get('/mysql', mysqlController);
function mysqlController (req, res, next) {
console.log('reached mysqlController');
conn.connect(function (err) {
if (!err) {
console.log('mysql connection established');
}
else {
console.log('mysql connection ERROR');
}
});
conn.query('select * from users', function (err, sqlRes) {
if (!err) {
console.log('\tdb query success from conn');
app.render('mysql/index.jade', {title: 'App | MySql:index', result: sqlRes},
function (err, html) {
console.log('\trendering mysql/index');
res.send(html);
conn.end(function (err) {
console.log('mysql connection closed');
});
});
}
else {
console.log('\tError processing query from db');
res.send("ERROR 505");
}
});
}
对于第一个请求，我得到了预期的结果，但第二次，它没有连接......
:~/workspace/noder$ node server.js
Server listening to port: 8080
reached mysqlController
mysql connection established
db query success from conn
rendering mysql/index
mysql connection closed
reached mysqlController
mysql connection ERROR
Error processing query from db
有人可以在这里帮助我吗...