每当我尝试在CMD中运行带有节点的JS代码时，我都会收到此错误：
哦，因为stackoverflow需要来自mySQL数据库的许可，所以机器人可能无法运行。
TypeError: Cannot read property 'length' of undefined
at Query._callback (C:\Users\George\Desktop\bot2\websitebot.js:138:9)
at Query.Sequence.end (C:\Users\George\node_modules\mysql\lib\protocol\sequences\Sequence.js:86:24)
at Query.ErrorPacket (C:\Users\George\node_modules\mysql\lib\protocol\sequences\Query.js:94:8)
at Protocol._parsePacket (C:\Users\George\node_modules\mysql\lib\protocol\Protocol.js:280:23)
at Parser.write (C:\Users\George\node_modules\mysql\lib\protocol\Parser.js:74:12)
at Protocol.write (C:\Users\George\node_modules\mysql\lib\protocol\Protocol.js:39:16)
at Socket.<anonymous> (C:\Users\George\node_modules\mysql\lib\Connection.js:109:28)
at emitOne (events.js:96:13)
at Socket.emit (events.js:188:7)
at readableAddChunk (_stream_readable.js:176:18)
这是我正在尝试运行的代码，老实说我不知道为什么我会收到这些错误。如果有人在这里帮助我：
//The required liberys for the bot to work
var Steam = require('steam')
var SteamUser = require('steam-user');
var SteamTotp = require('steam-totp');
var SteamConfirm = require('steamcommunity-mobile-confirmations');
var SteamTradeOffers = require('steam-tradeoffers');
var TradeOfferManager = require('steam-tradeoffer-manager');
var TOTP = require('onceler').TOTP;
var request = require('request');
var mysql = require('mysql');
var offers = new SteamTradeOffers();
var apik = 'xxx'; //The API Key of the bot.
var botsteamid = 'xxx'; //The SteamID of the bot.
var identitysecret = 'xxx'; //The identity secret of the bot.
var sharedsecret = 'xxx'; //The shared secret of the bot
var botusername = 'xxx';
var botpassword = 'xxx';
var admin = 'xxx'; //The steamid of the Admin.
var botid = 'xxx'; //The ID of the bot..
var pooling_interval = 10000; // 10 seconds by default, the bot checks for outgoing confirmations every X seconds, defined here
//Setting up device identity
var deviceid=SteamTotp.getDeviceID(botsteamid);
//Making the bot log in.
var details = {
"accountName" : botusername, // Bot username
"password" : botpassword, // Bot password
"twoFactorCode" : SteamTotp.generateAuthCode(sharedsecret)
};
var client = new SteamUser();
var manager = new TradeOfferManager({
"steam" : client,
"domain" : "localhost", //localhost
"language" : "en",
})
//Setting up the MySQL Connection - This is where I have errors.
var connection = mysql.createConnection({
host : 'xxx', // MYSQL , LEAVE IT AS LOCALHOST IF YOU RUN IT ON THE SAME SERVER AS THE WEBSITE AND DATABASE
user : 'xxx', // MYSQL USERNAME
password : 'xxx', // MYSQL PASSWORD
database : 'xxx', // MYSQL DATABASENAME
charset : 'utf8_general_ci'
});
connection.connect();
client.logOn(details);
//Checking mobile confirmations
function checkConfirmations(steamcommunityMobileConfirmations){
steamcommunityMobileConfirmations.FetchConfirmations((function (err, confirmations)
{
if (err)
{
console.log('Confirmations error: '+err);
if(err=='Error: 503') // This is an error you can most likely ignore, except if it's spammed a lot - To fix it simply restart the bot
{
}
if(err=='Error: Invalid protocol: steammobile:') // - To fix it simply restart the bot
{
// A fix should be coming soon!
}
return;
}
if(confirmations.length>0)
{
console.log('[SERVER] Received ' + confirmations.length + ' confirmations');
}
if ( ! confirmations.length)
{
return;
}
steamcommunityMobileConfirmations.AcceptConfirmation(confirmations[0], (function (err, result)
{
if (err)
{
console.log(err);
return;
}
console.log('[SERVER] Confirmation handling result: ' + result);
}).bind(this));
}).bind(this));
}
//Done with the functions, time to do commands.
//Logging the bot in
client.on('loggedOn', function(details)
{
client.on('webSession', function(sessionID, cookies){
manager.setCookies(cookies, function(err) {
if(err) {
console.log('setCookies error: '+err);
process.exit(1); // Fatal error since we couldn't get our API key
return;
}
var steamapi=manager.apiKey;
var SteamcommunityMobileConfirmations = require('steamcommunity-mobile-confirmations');
var steamcommunityMobileConfirmations = new SteamcommunityMobileConfirmations(
{
steamid: botsteamid,
identity_secret: identitysecret,
device_id: deviceid,
webCookie: cookies,
});
setInterval(function(){
checkConfirmations(steamcommunityMobileConfirmations)
}, pooling_interval);
console.log("[SERVER] The Bot has logged in!");
client.addFriend(admin);
client.setPersona(Steam.EPersonaState.LookingToTrade);
});
offers.setup({
sessionID: sessionID,
webCookie: cookies,
APIKey: apik
});
});
});
function checkWithdraw(){
connection.query("SELECT * FROM `withdraw` WHERE active=1 AND `botid`='"+botid+"' AND tradestatus='Queued' LIMIT 1", function(err, row, fields) {
if (!row.length) {
return;
}
var tradeid = row[0].id;
var sendItems = (row[0].assetids).split(',');
var item=[],num = 0;
for (i = 0; i < sendItems.length; i++) {
item[num] = {
appid: 730,
contextid: 2,
amount: 1,
assetid: sendItems[i]
}
num++;
}
offers.makeOffer ({
partnerSteamId: row[0].steamid,
accessToken: row[0].token,
itemsFromMe: item,
itemsFromThem: [],
message: 'Withdraw from '
},
function(err, response) {
if (err) {
console.log(err);
return;
}
console.log('Tradeoffer sent to ' + row[0].steamid);
tradeofferquery = response;
tradeofferid = (tradeofferquery['tradeofferid']);
connection.query('UPDATE `withdraw` SET `tradeid`=\''+tradeofferid+'\', `tradestatus`="Sent" WHERE `id`=\''+tradeid+'\'', function(err, row, fields) {});
})
});
}
function checkDeposit(){
connection.query("SELECT * FROM `deposits` WHERE `credited`=\'0\' AND `tradestatus`=\'Queued\' AND `botid`='"+botid+"' LIMIT 1", function(err, row, fields) {
if (!row.length) {
return
}
offers.getHoldDuration({partnerSteamId: row[0].steamid, accessToken: row[0].token}, function(err, response)
{
if (err)
{
return;
}
escrowduration = response;
thesd = (escrowduration['their']);
if(thesd === 0){
var tradeid = row[0].id;
var sendItems = (row[0].assetids).split(',');
var item=[],num = 0;
for (i = 0; i < sendItems.length; i++) {
item[num] = {
appid: 730,
contextid: 2,
amount: 1,
assetid: sendItems[i]
}
num++;
}
console.log(item);
offers.makeOffer ({
partnerSteamId: row[0].steamid,
accessToken: row[0].token,
itemsFromMe: [],
itemsFromThem: item,
message: 'Deposit to , code: ' + row[0].code
}, function(err, response) {
if (err) {
console.log(err);
return;
}
console.log('Tradeoffer sent to ' + row[0].steamid);
tradeofferquery = response;
tradeofferid = (tradeofferquery['tradeofferid']);
connection.query('UPDATE `deposits` SET `tradeid`=\''+tradeofferid+'\', `tradestatus`="Sent" WHERE `id`=\''+tradeid+'\'', function(err, row, fields) {});
})
} else {
connection.query('DELETE FROM `deposits` WHERE `steamid`=\''+ row[0].steamid +'\'', function(err, row, fields) {});
console.log('They are in escrow');
}
});
});
}
//Keeping track of sent offers.
manager.on('sentOfferChanged', function(offer, oldState) {
console.log("Offer #" + offer.id + " changed: " + TradeOfferManager.getStateName(oldState) + " -> " + TradeOfferManager.getStateName(offer.state));
connection.query('UPDATE `deposits` SET `tradestatus`=\''+TradeOfferManager.getStateName(offer.state)+'\' WHERE `tradeid`=\''+offer.id+'\'');
connection.query('UPDATE `withdraw` SET `tradestatus`=\''+TradeOfferManager.getStateName(offer.state)+'\' WHERE `tradeid`=\''+offer.id+'\'');
if(offer.state == TradeOfferManager.ETradeOfferState.Accepted) {
offer.getReceivedItems(function(err, items) {
if(err) {
console.log("Couldn't get received items: " + err);
} else {
items.forEach(function(item)
{
console.log('Recieved: ' + item.name);
connection.query('INSERT INTO `bank` (`botid`,`assetid`,`img`,`name`,`status`) VALUES (\''+botid+'\',\''+item.assetid+'\',\''+item.icon_url+'\',\''+item.market_name+'\',\'1\')', function(err, row, fields) {});
})
}
});
}
if(offer.state != (TradeOfferManager.ETradeOfferState.Accepted || TradeOfferManager.ETradeOfferState.Active)) {
connection.query('DELETE FROM `deposits` WHERE `tradeid`=\''+offer.id+'\'');
connection.query('DELETE FROM `withdraw` WHERE `tradeid`=\''+offer.id+'\'');
}
});
//Processing incomming offers
manager.on('newOffer', function(offer)
{
offer.decline(function(err)
{
console.log('[DEBUG] Declined Counter offer.');
if (err)
{
console.log('Decline error: '+err);
}
connection.query('DELETE FROM `deposits` WHERE `tradeid`=\''+offer.id+'\'');
connection.query('DELETE FROM `withdraw` WHERE `tradeid`=\''+offer.id+'\'');
});
});
setInterval(function() {
checkDeposit();
checkWithdraw();
}, 5000);
//Numeric and float
function is_float(mixed_var)
{
return +mixed_var === mixed_var && (!isFinite(mixed_var) || !! (mixed_var % 1));
}
function isNumeric(n){
return (typeof n == "number" && !isNaN(n));
}
//Setting up chat commands for the admin
client.on('friendMessage#'+admin+'', function(steamID, message)
{
console.log("[SERVER] Admin to Bot: " + message);
if((message.indexOf("ping") == 0) || (message.indexOf("/cmd") == 0))
{
checkDeposit();
client.chatMessage(admin, 'Pong!');
}
if((message.indexOf("pong") == 0) || (message.indexOf("/cmd") == 0))
{
checkWithdraw();
client.chatMessage(admin, 'Pong!');
}
if(message.indexOf("/code") == 0)
{
var code = SteamTotp.generateAuthCode(sharedsecret);
client.chatMessage(admin, '[SERVER] Your login code: '+code+'');
}
});
答案 0 :(得分：0)
如果我正确地解答你的问题，这就是错误发生的地方。
connection.query("SELECT * FROM `withdraw` WHERE active=1 AND `botid`='"+botid+"' AND tradestatus='Queued' LIMIT 1", function(err, row, fields) {
if (!row.length) {
return;
}
我也是一个新的mysql区域，但我会尝试编写类似这样的代码：
connection.query("SELECT * FROM `withdraw` WHERE active=1 AND `botid`= ? AND tradestatus='Queued' LIMIT 1",botid , function(err, rows, fields) {
if (!rows.length) {
return;
}
我所做的是将您输入“botid”的地方改为“？”相反，它在您的函数之前从botid获取值，而行现在只是用于代码清除的行。
正如你所说，我无法访问你的数据库，但我希望这可能会有效。让我知道！