简单的ajax分页疑问
- HTML code
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="zh-CN"><head><title>ajax分页</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta name="description" content="" /><meta name="keywords" content="" /><script type="text/javascript">function ajax() { var ajax = false; if(window.XMLHttpRequest) { ajax = new XMLHttpRequest(); } else { ajax = new ActiveXObject("Microsoft.XMLHTTP"); } return ajax;}window.onload = function check(node) { var parameter = "page=" + node; var nokia = ajax(); //alert(nokia);return; nokia.open('POST',"process.php",true); nokia.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); nokia.send(parameter); nokia.onreadystatechange = function () { if(nokia.readyState==4 && nokia.status==200) { document.getElementById('span1').innerHTML = this.responseText; } }}</script><style type="text/css"></style></head> <body> <span id="span1"></span> </body></html>- PHP code
<?php$page = isset($_POST['page'])?$_POST['page']+0:1;if($page==0) {$page =1;}$conn = mysql_connect('localhost','root','111111');mysql_select_db('msg');$sql = 'select count(*) from news';$info = mysql_query($sql,$conn);$msg = mysql_fetch_row($info);$counts = $msg[0]; $perpage = 5; $pages = ceil($counts/$perpage); $start = $page - (5-1)/2;$end = $page + (5-1)/2;$start = $start<1?1:$start;$end = ($start+5-1)>$pages?$pages:($start+5-1);$end = $end>$pages?$pages:$end;$start = ($end-5+1)<1?1:$end-5+1;$link = '';for($i=$start;$i<=$end;$i++) { if($i == $page) { $link .= $i; continue; } $link .= ' <a onclick="check(' . $i . ');" href="#">' . $i . '</a> ';}echo $link;运行上面的html文件 可以显示 1 2 3 4 5
可一单击超链接时，firefox的debug显示 check is not defined
不是已经innerHTML进来了么，而且奇怪的是那个$page如果不加零的话显示的object element，望朋友解答！！！
[解决办法]
这样呢
function check(node) {
var parameter = "page=" + node;
var nokia = ajax();
//alert(nokia);return;
nokia.open('POST',"process.php",true);
nokia.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
nokia.send(parameter);
nokia.onreadystatechange = function () {
if(nokia.readyState==4 && nokia.status==200) {
document.getElementById('span1').innerHTML = this.responseText;
}
}
}
window.onload = check(node);
[解决办法]
- JScript code
window.onload = function (){ check(1);}function check(node) { var parameter = "page=" + node; var nokia = ajax(); //alert(nokia);return; nokia.open('POST',"process.php",true); nokia.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); nokia.send(parameter); nokia.onreadystatechange = function () { if(nokia.readyState==4 && nokia.status==200) { document.getElementById('span1').innerHTML = this.responseText; } }}
------解决方案--------------------
window.onload = function check(node) { ... }
后，函数 check 被绑定到 window.onload 事件，不是公有的
所以你调用 check 会报 方法未定义 错