求TP大神帮我看看，为什么不能验证登陆？
<!-- 弹出登陆框 --><br /><div class="theme-popover"><br /> <div class="theme-poptit"><br /> <a href="javascript:;" title="关闭" class="close">×</a><br /> <h3 style="font-size:20px;">会员登陆</h3><br /> </div><br /> <div class="theme-popbod dform"><br /> <form class="theme-signin" name="loginform"><br /> <ol><br /> <li><strong>用户名：</strong><input class="ipt" type="text" name="username" size="20" placeholder="手机/邮箱/用户名"/></li><br /> <li><strong>密码：</strong><input class="ipt" type="password" name="password" size="20" placeholder="请输入你的密码"/></li><br /> <li><input id="btnEnter" class="btn btn-primary" type="submit" name="submit" value="登 录 " /></li><br /> <li style="margin-left:30%;margin-top:-12%;"><a href="">忘记密码 ?</a></li><br /> <li style="margin-left:-20%;margin-top:12%;"><input type="checkbox">记住账号</li><br /> <li><br/><div id="datainfo"></div></li><br /> </ol><br /> </form><br /> </div><br /></div>[code=javascript]<script type="text/javascript"><br /> $(function(){<br /> //提交表单<br /> $('#btnEnter').click(function()<br /> {<br /> var username=$('input[name="username"]').val();<br /> var password=$('input[name="password"]').val();<br /> //alert(password);<br /><br /> $.get('__URL__/doLogin',{'username':username,'password':password},function(data)<br /> {<br /> if(data=='验证成功')<br /> {<br /> window.location='__APP__/index/index';<br /> }<br /> else if(data=='验证失败')<br /> {<br /> $('#datainfo').html("管理员登录失败.");<br /> }<br /> });<br /><br /> $('input[class="boxcontent"]').blur(function()<br /> {<br /> $('#datainfo').html("");<br /> });<br /> });<br /> });<br /></script> //登陆验证<br /> public function doLogin()<br /> {<br /> $username=$_GET['username'];<br /> $password=$_GET['password'];<br /> $user=M('member');<br /> $where['username']=$username;<br /> $where['password']=md5($password);<br /> $count=$user->where($where)->count();<br /> if($count)<br /> {<br /> $_SESSION['username']=$username;<br /> echo '验证成功';<br /> }<br /> else<br /> {<br /> echo '验证失败';<br /> }<br /> }
