我分了两个组，Admin和Home，在Lib目录下放了QueryAction.class.php,其中有这么一个函数

public function ajaxGetIterm()
{
$id = $_REQUEST['id'];
$iterm = M('iterm');
$result = $iterm->where('id='.$id)->limit(1)->select();
if($result)
$this->ajaxReturn($result[0],"查询成功！",1);
else
$this->ajaxReturn($result[0],"查询失败！",0);
}


在Admin中建立AdminQueryAction.class.php,代码如下

class AdminQueryAction extends QueryAction
{
}

然后在页面中使用Ajax：
[backcolor=rgb(255,255,255)]$.post("/tengfei/index.php/Admin/AdminQuery/ajaxGetIterm", {id:64}, function(data){console.log(data)},'json')[/backcolor]
[backcolor=rgb(255,255,255)]在IE和Webkit下会出现错误，然而[/backcolor]
[backcolor=rgb(255,255,255)]如果不使用继承，直接在AdminQueryAction中写函数[/backcolor]
[backcolor=rgb(255,255,255)]。如：[/backcolor]
[backcolor=rgb(255,255,255)]class AdminQueryAction extends Action
{
public function ajaxGetIterm()
{
$id = $_REQUEST['id'];
$iterm = M('iterm');
$result = $iterm->where('id='.$id)->limit(1)->select();
if($result)
$this->ajaxReturn($result[0],"查询成功！",1);
else
$this->ajaxReturn($result[0],"查询失败！",0);
}
}[/backcolor]
[backcolor=rgb(255,255,255)][/backcolor]
[backcolor=rgb(255,255,255)]则不会有任何问题[/backcolor]
[backcolor=rgb(255,255,255)][/backcolor]
[backcolor=rgb(255,255,255)]经过仔细检查，发现前一种方法返回的json在头部添加了BOM信息ef bb bf，其他方面别无二致。[/backcolor]
[backcolor=rgb(255,255,255)][/backcolor]
[backcolor=rgb(255,255,255)]也许是我个人的问题，谢谢。[/backcolor]