ajax 页面刷新

1.PHP public function actionSavedeDail(){ $update = array('model_id'=>$_POST['id'],'model_sql'=>$_POST['model_sql'],'model_sql_type'=>$_POST['model_sql_type'],'source'=>$_POST["source"]); $rs = $this->genClass->Savesql('model_sql',$update); //echo "修改成功"; $act=1; $this->assign('act',$act); // $this->display('Task/Detailed'); } 2.view <form method="post" action="./SavedeDail" name="detailForm0" id="detailForm0"> <textarea style="width:100%;height:90%;background:#FFFFCE;" name="model_sql">{$modellist.model_sql}</textarea> <input type="button" value="更新" style="margin-bottom:2px;position:absolute;z-index:9999" onclick="SavedeDailSam('detailForm0');" /> <input type="hidden" name="id" value="{$modellist.id}"/> <input type="hidden" name="model_sql_type" value="0"/> <input type="hidden" name="source" value="0"/> </form> 3.js function SavedeDailSam(id) { var form_id = id; if(!form_id){ return false; } $a=$("#"+id).serialize(); jQuery.ajax({ type: "POST",url: './SavedeDail',data: $("#"+id).serialize(),success: function(data){ alert(data); } }); }