[ExtJS] ExtJs4.2 Form form Submission

Basic code:

<script>

Ext.onready (function () {ext.create (' Ext.form.Panel ', {title: ' Login ', Bodypadding:5, width:350,//will go through AJAX     Submit to this URL URL: ' ${pagecontext.request.contextpath}/back/login.do ',//The Form field fields will be vertically arranged, full width frame:true,        Layout: ' Auto ',//The fields DefaultType: ' TextField ', items: [{fieldlabel: ' username ', Name: ' Name ',        Allowblank:false,blanktext: ' username cannot be empty '},{Fieldlabel: ' Password ', inputtype: ' Password ', name: ' pwd ',        Allowblank:false,blanktext: ' Password cannot be empty '},{Fieldlabel: ' User type ', Name: ' Type ', Allowblank:false,    Hidden:true,//Hide component default false value:1//form default}],//Reset and save button.        Buttons: [{text: ' Reset ', Handler:function () {this.up (' form '). GetForm (). reset (); }}, {text: ' Save ', Formbind:true,//only enabled once the form is valid disabled:true, ha       Ndler:function () {var form = this.up (' form '). GetForm ();     if (Form.isvalid ()) {Form.submit ({success:function (form, action) {                    Ext.Msg.alert (' Hint information ', ACTION.RESULT.RESTMSG); }, Failure:function (form, action) {Ext.Msg.alert (' hint info ', ACTION.RESULT.RESTMSG                    );            }                }); }}], RenderTo:Ext.getBody ()}); }); </script>

No added field check, verification code, password encryption, and so on, just the implementation of the pure login function, the specific details temporarily ignored!

Login.do the corresponding program:

    /*** Login * *@return     */@RequestMapping ("/login") @ResponseBody Public voidLogin (@RequestParam string name, @RequestParam string pwd, @RequestParamintType,writer Writer) {String valmsg=""; Try{User User=NewUser ();            User.setuname (name);            User.setpwd (PWD);            User.setutype (type); User GetUser=userservice.queryuser (user); if(getuser!=NULL) {valmsg=showresultmsg (true, "Login Successful"); //Jump to homepage}Else{valmsg=showresultmsg (false, "User does not exist!"); }        } Catch(Exception e) {e.printstacktrace (); Valmsg=showresultmsg (true, "Login Failed"); }finally {            Try{writer.write (valmsg); } Catch(IOException e) {e.printstacktrace (); }        }    }

Results returned:

{"Result":true, "restmsg": "Login successful!"}

[ExtJS] ExtJs4.2 Form form Submission