1
讓我們第一次進入我的情況一個重要的注意事項：最有效的數據收集方式？
- 我有1臺在我的MySQL數據庫與約10000項
目前，收集從表1＃信息時。我每頁收集總共20 - 24行。
的例子是：
Q1：SELECT * FROM表WHERE貓= 1 LIMIT 0,25 R1：ID：1，名稱：事情，資訊：12
的PHP文件這些查詢，由jquery ajax函數調用，並創建一個jquery函數讀取並顯示給用戶的XML文件。
我的問題在這裏。我該如何提高這個過程的穩定速度&。我可以有多達一萬名訪問者同時收集信息，這使我的服務器變得非常緩慢，甚至在某些情況下甚至崩潰。
我幾乎沒有想法，所以我在這裏尋求幫助。這是我目前的數據收集（的實際表現：
public function collectItems($type, $genre, $page = 0, $search = 0)
{
// Call Core (Necessary for Database Interaction
global $plusTG;
// If Search
if($search)
{
$searchString = ' AND (name LIKE "%'.$search.'%")';
}
else
{
$searchString = '';
}
// Validate Query
$search = $plusTG->validateQuery($search);
$type = $plusTG->validateQuery($type);
$genre = $plusTG->validateQuery($genre);
// Check Numeric
if((!is_numeric($genre)))
{
return false;
}
else
{
if(!is_numeric($type))
{
if($type != 0)
{
$typeSelect = '';
$split = explode(',',$type);
foreach($split as $oneType)
{
if($typeSelect == '')
{
$typeSelect .= 'type = '.$oneType.' ';
}
else
{
$typeSelect .= 'OR type = '.$oneType.' ';
}
}
}
}
else
{
$typeSelect = 'type = ' . $type . ' ';
}
//echo $typeSelect;
$limit = ($page - 1) * 20;
if(($type != 0) && ($genre != 0))
{
$items = $plusTG->db->query('SELECT * FROM dream_items WHERE active = 1 AND genre = '.$genre.' AND ('.$typeSelect.')'.$searchString.' ORDER BY name LIMIT '.$limit.',20');
$total = $plusTG->db->query('SELECT COUNT(*) as items FROM dream_items WHERE active = 1 AND genre = '.$genre.' AND ('.$typeSelect.')'.$searchString);
}
elseif(($type == 0) && ($genre != 0))
{
$items = $plusTG->db->query('SELECT * FROM dream_items WHERE active = 1 AND genre = '.$genre.$searchString.' ORDER BY name LIMIT '.$limit.',20');
$total = $plusTG->db->query('SELECT COUNT(*) as items FROM dream_items WHERE active = 1 AND genre = '.$genre.$searchString);
}
elseif(($type != 0) && ($genre == 0))
{
$items = $plusTG->db->query('SELECT * FROM dream_items WHERE active = 1 AND ('.$typeSelect.')'.$searchString.'ORDER BY name LIMIT '.$limit.',20');
$total = $plusTG->db->query('SELECT COUNT(*) as items FROM dream_items WHERE active = 1 AND ('.$typeSelect.')'.$searchString);
}
elseif(($type == 0) && ($genre == 0))
{
$items = $plusTG->db->query('SELECT * FROM dream_items WHERE active = 1'.$searchString.' ORDER BY name LIMIT '.$limit.',20');
$total = $plusTG->db->query('SELECT COUNT(*) as items FROM dream_items WHERE active = 1'.$searchString);
}
$this->buildInfo($items->num_rows, $total->fetch_assoc());
while($singleItem = $items->fetch_assoc())
{
$this->addItem($singleItem);
}
}
return true;
}
構建信息呼叫&添加項調用所添加的項目到DOMXML
這是我的JavaScript（域和文件名過濾）：
function itemRequest(type,genre,page, search)
{
if(ajaxReady != 0)
{
ajaxReady = 0;
$('#item_container').text('');
var searchUrl = '';
var searchLink;
var ajaxURL;
if(search != 0)
{
searchUrl = '&search=' + search;
searchLink = search;
ajaxURL = "/////file.php";
}
else
{
searchLink = 0;
ajaxURL = "////file.php";
}
$.ajax({
type: "GET",
url: ajaxURL,
data: "spec=1&type="+type+"&genre="+genre+"&page="+page+searchUrl,
success: function(itemListing){
$(itemListing).find('info').each(function()
{
var total = $(this).find('total').text();
updatePaging(total, page, type, genre, searchLink);
});
var items = $(itemListing).find('items');
$(items).find('item').each(function()
{
var itemId = $(this).find('id').text();
var itemType = $(this).find('type').text();
var itemGenre = $(this).find('genre').text();
var itemTmId = $(this).find('tm').text();
var itemName = $(this).find('name').text();
buildItem(itemId, itemType, itemGenre, itemTmId, itemName);
});
$('.item_one img[title]').tooltip();
},
complete: function(){
ajaxReady = 1;
}
});
}
構建項目調用此：
function buildItem(itemId, itemType, itemGenre, itemTmId, itemName)
{
// Pick up Misc. Data
var typeName = nameOfType(itemType);
// Create Core Object
var anItem = $('<div/>', {
'class':'item_one'
});
// Create Item Image
$('<img/>', {
'src':'///'+typeName+'_'+itemTmId+'_abc.png',
'alt':itemName,
'title':itemName,
click:function(){
eval(typeName + 'Type = ' + itemTmId);
$('.equipped_item[name='+typeName+']').attr('src','//'+typeName+'_'+itemTmId+'_abc.png');
$('.equipped_item[name='+typeName+']').attr('alt',itemName);
$('.equipped_item[name='+typeName+']').attr('title',itemName);
$('.equipped_item[title]').tooltip();
recentEquipped(typeName, itemTmId, itemName);
updateSelfy();
}
}).appendTo(anItem);
// Favs
var arrayHack = false;
$(favEquips).each(function(){
if(arrayHack == false)
{
if(in_array(itemTmId, this))
{
arrayHack = true;
}
}
});
var itemFaved = '';
if(arrayHack == true)
{
itemFaved = 'activated';
}
$('<div/>',{
'class':'fav',
'id':itemFaved,
click:function(){
if($(this).attr('id') != 'activated')
{
$(this).attr('id','activated');
}
else
{
$(this).removeAttr('id');
}
itemFav(itemTmId, typeName, itemName);
}
}).appendTo(anItem);
$(anItem).appendTo('#item_container');
}
如果任何人都可以幫助我改進此代碼，它將非常感激。