sencha touch2 Login examples - sencha-touch-2

Question

I need a cross-domain user login request instance, please help me, thank you！！
My code
Ext.data.JsonP.request({
url: 'http://25.30.2.3:8080/newvbo/applyaction!longin',
params: {
username:'13881901678',
password:'111111',
},
success: function(response, opts) {
alert('1');
},
failure: function(response, opts) {
alert('2');
}
});
My question is, I not receive the server returns the value, I wrong?

Answer 1

You can Try this
Ext.Ajax.request({
method:'GET',
contentType:'application/json; charset=utf-8',
dataType:'json',
url:'http://........Login',
disableCaching: false,
withCredentials: true,
useDefaultXhrHeader: false,
callbackKey: 'callback',
params: {
EmailId:Ext.getCmp('usernametwoway').getValue(),
Password:Ext.getCmp('loginpasswordtwoway').getValue(),
},
success:function(response)
{
console.log(response);
var res = response.responseText;
var jsonarr = Ext.decode(response.responseText);
console.log(jsonarr);
var myres = jsonarr[0].Result;
console.log(myres);
switch(myres)
{
case '1':
console.log("Registration response is successfully");
Ext.Viewport.setActiveItem({xtype:'passengerdetailstwoway'});
break;
case '0':
console.log("Failed");
Ext.Msg.alert("Error","Login Failed",Ext.emptyFn);
break;
Based on the responce you can Specify the Switch case..

Answer 2

Hi #jesse you can try for cross-domain something like this,
Ext.Ajax.request({
url: 'your_url_path',
timeout: 90000,
params: {
withCredentials: true,
useDefaultXhrHeader: false,
username:'13881901678',
password:'111111',
},
success: function(response, o) {
if(response != '') {
alert('1')
}
},
failure: function(response, o) {
alert('2')
}
})
For cross-domain you need put withCredentials: true and useDefaultXhrHeader: false.
I hope help you.

Answer 3

I would like to suggest you a different approach because sending login credentials as GET parameter to remote server over http is not a good idea, instead you should use POST method over HTTPS. Now you would think JSONP doesn't support POST so how can I do this, but if you are going to install your app on Phone or iPad it would do remote call from browser without using JsonP, which means you can use normal AJAX proxy to do whatever you want. Check this out:
How to use json proxy to access remote services during development
Which means this should work:
var obj = new Object();
obj.userId = username;
obj.password = password;
var data = Ext.JSON.encode(obj);
Ext.Ajax.request({
url : 'https://login_url',
method : "POST",
headers: {
'Content-Type': 'application/json'
},
params : data,
useDefaultXhrHeader : false,
withCredentials: true,
success : function(response) {
},
failure : function(response) {
}
});