tp5框架ajax异步添加数据的代码实现

[js]
<script type="text/javascript">
 function adddhm(){
 var oid=$("input[name=&#39;oid&#39;]").val();
 var uname=$("input[name=&#39;uname&#39;]").val();
 var dhm=$("input[name=&#39;dhm&#39;]").val();
 var _class=$("select[name=&#39;class&#39;]").val();
 var otime=$("input[name=&#39;otime&#39;]").val();
 if(!oid){
 alert(&#39;订单号不能为空！&#39;);
 return false;
 }
 if(!uname){
 alert(&#39;用户名不能为空！&#39;);
 return false;
 }
 if(!dhm){
 alert(&#39;兑换码不能为空！&#39;);
 return false;
 }
 if(!_class){
 alert(&#39;适用课程不能为空！&#39;);
 return false;
 }
 if(!otime){
 alert(&#39;下单时间不能为空！&#39;);
 return false;
 }
 $.ajax({
 type:"POST",
 data:{oid:oid,uname:uname,dhm:dhm,class:_class,otime:otime},
 url:"{:url(&#39;add&#39;)}",
 success:function(data){
 alert(data.msg);
 }
 });
 $("#myform")[0].reset() ;
 return false;
 }
 </script>
[/js]

[php]
 public function add()
 {
 if(request()->isPost()){
 $_data=input('post.');
 $data=array();
 foreach ($_data as $k => $v) {
 $data[$k]=trim($v);
 }
 $validate = validate('dhm');
 if(!$validate->check($data)){
 $msg=$validate->getError();
 return json(['error'=>2,'msg'=>$msg]);
 }
 $add=db('dhm')->insert($data);
 if($add){
 return json(['error'=>0,'msg'=>'添加成功！']);
 }else{
 return json(['error'=>1,'msg'=>'添加失败，请重新添加！']);
 }
 return;
 }
 return view();
 }
[/php]