IE的Ajax缓存问题解决方法

yanglu — Wed, 30 Dec 2009 08:49:25 +0000

IE对Ajax请求使用缓存，可以说有好有坏，但在用到即时数据请求时，就需要防止IE缓存Ajax，具体方法：
在AJAX请求页面后加个随机函数,比如使用随机时间函数。
在javascript发送的URL后加上qtime=Math.random()，例如:

URL+"&"+"qtime="+Math.random();

友情链接点击次数无刷新统计FORDZ7.0

yanglu — Sun, 28 Dec 2008 18:31:41 +0000

　　本插件可分为3个部分安装，分别是1.功能实现部分，此部分为必须；2.前台显示部分，此部分主要是在前台显示点击次数，为可选安装；3.后台管理部分，此部分主要是能在后台友情链接管理每项的点击次数，也为可选安装，不过本人推荐安装此部分。

　　功能实现部分
　　数据库升级ALTER TABLE `cdb_forumlinks` ADD `hits` SMALLINT( 6 ) UNSIGNED NOT NULL DEFAULT ’0′;
　　本插件的功能得于实现，必须对友情链接表增加一个字段，以存储点击次数，对论坛的后续升级没有影响。
　　打开文件/include/cache.func.php ，查找

if($flink['logo']) {
$tightlink_content .= '
	
.$flink['logo'].'" border="0" alt="'.$flink['name'].'" />

.$flink['url'].'" target="_blank">'.$flink['name'].'
'.$flink['description'].'
';
} else {
$tightlink_content .= '
	

.$flink['url'].'" target="_blank">'.$flink['name'].'
'.$flink['description'].'
';
}
} else {
if($flink['logo']) {
$tightlink_logo .= '.$flink['url'].'" target="_blank">.$flink['logo'].'" border="0" alt="'.$flink['name'].'" /> ';
} else {
$tightlink_text .= '
	.$flink['name'].'" href="'.$flink['url'].'" target="_blank">'.$flink['name'].'
 
';
}li>

　　替换成以下代码：

if($flink['logo']) {
$tightlink_content .= '
	
.$flink['logo'].'" border="0" alt="'.$flink['name'].'" />

.$flink['id'].'\', \'returnhits\')" href="'.$flink['url'].'" target="_blank">'.$flink['name'].'
'.$flink['description'].'
';
} else {
$tightlink_content .= '
	

.$flink['id'].'\', \'returnhits\')" href="'.$flink['url'].'" target="_blank">'.$flink['name'].'
'.$flink['description'].'
';
}
} else {
if($flink['logo']) {
$tightlink_logo .= '.$flink['id'].'\', \'returnhits\')" href="'.$flink['url'].'" target="_blank">.$flink['logo'].'" border="0" alt="'.$flink['name'].'" /> ';
} else {
$tightlink_text .= '
	.$flink['name'].'" onclick="ajaxget(\'ajax.php?action=uplinkhit&linkid='.$flink['id'].'\', \'returnhits\')" href="'.$flink['url'].'" target="_blank">'.$flink['name'].'
 
';
}li>

　　打开文件/ajax.php ，查找：include template(‘footer_ajax’);　　在下面添加

//-----友情链接点击统计hack by yglu.cn ----begin----
} elseif($action == 'uplinkhit') {
 
$id = $linkid;
//防止重复点击请从下行开始，不需要的可以删除
if (!empty($_DCOOKIE['hits'])) {
 
$rs = $db-&gt;query("SELECT * FROM {$tablepre}forumlinks WHERE id='$id'");
$row = $db-&gt;fetch_array($rs);
showmessage(''.$row['name'].' 被点击了'.$row['hits'].'次', '', 1);
 
} else {
//防止重复点击到这里结束
$rs = $db-&gt;query("UPDATE {$tablepre}forumlinks SET hits = hits + 1 WHERE id = '$id'");
$rs = $db-&gt;query("SELECT * FROM {$tablepre}forumlinks WHERE id='$id'");
$row = $db-&gt;fetch_array($rs);
dsetcookie('hits', $id, 86400);
showmessage(''.$row['name'].' 被点击了'.$row['hits'].'次', '', 1);
 
}
//-----友情链接点击统计hack by yglu.cn ----end----

前台显示部分
　　打开文件/templates/default/discuz.htm（如果有多个风格，就要修改每个风格文件下的discuz.htm），查找

{lang board_links}

　　替换成:

{lang board_links}

　
后台管理部分
打开文件/admin/misc.inc.php ，查找

if(!submitcheck('linksubmit')) {
?&gt;
<script type="text/JavaScript">// 
var rowtypedata = &#91;
&#91;
  &#91;1,'', 'td25'],
  &#91;1,'
<input type="text" class="txt" name="newdisplayorder[]" size="3">&#039;, 'td28'],
  &#91;1,'
<input type="text" class="txt" name="newname[]" size="15">&#039;],
  &#91;1,'
<input type="text" class="txt" name="newurl[]" size="20">&#039;],
  &#91;1,'
<input type="text" class="txt" name="newdescription[]" size="30">&#039;, 'td26'],
  &#91;1,'
<input type="text" class="txt" name="newlogo[]" size="20">&#039;]
&#93;
&#93;
// ]]>
shownav('adv', 'misc_link');
showsubmenu('nav_misc_links');
showtips('misc_link_tips');
showformheader('misc&operation=link');
showtableheader();
showsubtitle(array('', 'display_order', 'misc_link_edit_name', 'misc_link_edit_url', 'misc_link_edit_description', 'misc_link_edit_logo'));
$query = $db-&gt;query("SELECT * FROM {$tablepre}forumlinks ORDER BY displayorder");
while($forumlink = $db-&gt;fetch_array($query)) {
showtablerow('', array('class="td25"', 'class="td28"', '', '', 'class="td26"'), array(
'
.$forumlink['id'].'" />',
'
.$forumlink[id].']" size="3" type="text" value="'.$forumlink['displayorder'].'" />',
'
.$forumlink[id].']" size="15" type="text" value="'.$forumlink['name'].'" />',
'
.$forumlink[id].']" type="text" value="'.$forumlink['url'].'" />',
'
.$forumlink[id].']" size="30" type="text" value="'.$forumlink['description'].'" />',
'
.$forumlink[id].']" type="text" value="'.$forumlink['logo'].'" />'
));
}
echo '
 
  
 
  
'.$lang['misc_link_add'].'
 
 
';
showsubmit('linksubmit', 'submit', 'del');
showtablefooter();
showformfooter();
} else {
if(is_array($delete)) {
$ids = $comma = '';
foreach($delete as $id) {
$ids .= "$comma'$id'";
$comma = ',';
}
$db-&gt;query("DELETE FROM {$tablepre}forumlinks WHERE id IN ($ids)");
}
if(is_array($name)) {
foreach($name as $id =&gt; $val) {
$db-&gt;query("UPDATE {$tablepre}forumlinks SET displayorder='$displayorder[$id]', name='$name[$id]', url='$url[$id]',description='$description[$id]',logo='$logo[$id]' WHERE id='$id'");
}
}
if(is_array($newname)) {
foreach($newname as $key =&gt; $value) {
if($value) {
$db-&gt;query("INSERT INTO {$tablepre}forumlinks (displayorder, name, url, description, logo) VALUES ('$newdisplayorder[$key]', '$value', '$newurl[$key]', '$newdescription[$key]', '$newlogo[$key]')");
}
}
}
updatecache('forumlinks');
cpmsg('forumlinks_succeed', $BASESCRIPT.'?action=misc&operation=link', 'succeed');
}

　　替换成：

if(!submitcheck('linksubmit')) {
?&gt;
<script type="text/JavaScript">// 
var rowtypedata = &#91;
&#91;
  &#91;1,'', 'td25'],
  &#91;1,'
<input type="text" class="txt" name="newdisplayorder[]" size="3">&#039;, 'td28'],
  &#91;1,'
<input type="text" class="txt" name="newname[]" size="15">&#039;],
  &#91;1,'
<input type="text" class="txt" name="newurl[]" size="20">&#039;],
  &#91;1,'
<input type="text" class="txt" name="newdescription[]" size="30">&#039;, 'td26'],
  &#91;1,'
<input type="text" class="txt" name="newlogo[]" size="20">&#039;],
  &#91;1,'
<input type="text" class="txt" name="newhits[]" size="7">&#039;]
&#93;
&#93;
// ]]>
shownav('adv', 'misc_link');
showsubmenu('nav_misc_links');
showtips('misc_link_tips');
showformheader('misc&operation=link');
showtableheader();
showsubtitle(array('', 'display_order', 'misc_link_edit_name', 'misc_link_edit_url', 'misc_link_edit_description', 'misc_link_edit_logo', '点击次数'));
$query = $db-&gt;query("SELECT * FROM {$tablepre}forumlinks ORDER BY displayorder");
while($forumlink = $db-&gt;fetch_array($query)) {
showtablerow('', array('class="td25"', 'class="td28"', '', '', 'class="td26"'), array(
'
.$forumlink['id'].'" />',
'
.$forumlink[id].']" size="3" type="text" value="'.$forumlink['displayorder'].'" />',
'
.$forumlink[id].']" size="15" type="text" value="'.$forumlink['name'].'" />',
'
.$forumlink[id].']" type="text" value="'.$forumlink['url'].'" />',
'
.$forumlink[id].']" size="30" type="text" value="'.$forumlink['description'].'" />',
'
.$forumlink[id].']" type="text" value="'.$forumlink['logo'].'" />',
'
.$forumlink[id].']" size="7" type="text" value="'.$forumlink['hits'].'" />'
));
}
echo '
 
  
 
  
'.$lang['misc_link_add'].'
 
 
';
showsubmit('linksubmit', 'submit', 'del');
showtablefooter();
showformfooter();
} else {
if(is_array($delete)) {
$ids = $comma = '';
foreach($delete as $id) {
$ids .= "$comma'$id'";
$comma = ',';
}
$db-&gt;query("DELETE FROM {$tablepre}forumlinks WHERE id IN ($ids)");
}
if(is_array($name)) {
foreach($name as $id =&gt; $val) {
$db-&gt;query("UPDATE {$tablepre}forumlinks SET displayorder='$displayorder[$id]', name='$name[$id]', url='$url[$id]',description='$description[$id]',logo='$logo[$id]',hits='$hits[$id]' WHERE id='$id'");
}
}
if(is_array($newname)) {
foreach($newname as $key =&gt; $value) {
if($value) {
$db-&gt;query("INSERT INTO {$tablepre}forumlinks (displayorder, name, url, description, logo, hits) VALUES ('$newdisplayorder[$key]', '$value', '$newurl[$key]', '$newdescription[$key]', '$newlogo[$key]', '$newhits[$key]')");
}
}
}
updatecache('forumlinks');
cpmsg('forumlinks_succeed', $BASESCRIPT.'?action=misc&operation=link', 'succeed');
}

　　到此全部完成，更新缓存，OK!附件里有修改好的文件。
友情链接点击统计FOR7.0.rar

翱翔白鹭 » ajax

IE的Ajax缓存问题解决方法

友情链接点击次数无刷新统计FORDZ7.0

.$flink['url'].'" target="_blank">'.$flink['name'].'

.$flink['url'].'" target="_blank">'.$flink['name'].'

.$flink['id'].'\', \'returnhits\')" href="'.$flink['url'].'" target="_blank">'.$flink['name'].'

.$flink['id'].'\', \'returnhits\')" href="'.$flink['url'].'" target="_blank">'.$flink['name'].'

{lang board_links}

{lang board_links}