Three data submission methods for ext

1. Ext form Ajax submission (default submission method)

1. 1. Function login (item ){
2. 2.
3. 3. If (validatorform ()){
4. 4. // set the logon button to disabled during logon to prevent repeated submission.
5. 5. This. Disabled = true;
6. 6.
7. 7. // The first parameter can be submit or load
8. 8. formpanl. Form. doaction ('submit ',{
9. 9.
10. 10. url: 'user. do? Method = login ',
11. 11.
12. 12. Method: 'post ',
13. 13.
14. 14. // if there are parameters other than the form, you can add them here. I am currently blank. You can also omit the following sentence.
15. 15. Params :'',
16. 16.
17. 17. // The first parameter is to pass in the form, and the second is the Ext. Form. Action object used to obtain the JSON data transmitted by the server.
18. 18. Success: function (Form, Action ){
19. 19.
20. 20. Ext. msg. Alert ('operation', action. Result. data );
21. 21. This. Disabled = false;
22. 22.
23. 23 .},
24. 24. Failure: function (Form, Action ){
25. 25.
26. 26. Ext. msg. Alert ('Warning ', 'user name or Password error! ');
27. 27. // Logon Failed. Set the submit button to operable.
28. 28. This. Disabled = false;
29. 29.
30. 30 .}
31. 31 .});
32. 32. This. Disabled = false;
33. 33 .}
34. 34 .}

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2. Non-Ajax submission of ext forms

1. 1. // The following two rows must be added for non-Ajax form submission! Onsubmit: Ext. emptyfn, submit: function (){
2. 2. // set the action address again
3. 3. This. getel (). Dom. Action = 'user. do? Method = login '; this. getel (). Dom. method = 'post ';
4. 4. // submit the submit
5. 5. This. getel (). Dom. Submit ();
6. 6 .},

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3. Ajax submission of ext

1. 1.
2. 2.
3. 3. Ext. Ajax. Request ({
4. 4. // request address
5. 5. url: 'login. Do ',
6. 6. // submit the parameter group
7. 7. Params :{
8. 8. loginname: Ext. Get ('loginname'). Dom. value,
9. 9. loginpassword: Ext. Get ('loginpassword'). Dom. Value
10. 10 .},
11. 11. // callback upon success
12. 12. Success: function (response, options ){
13. 13. // obtain the response JSON string
14. 14. var responsearray = ext. util. JSON. Decode (response. responsetext );
15. 15. If (responsearray. Success = true ){
16. 16. Ext. msg. Alert ('congratulation ',' you have successfully logged on! ');
17. 17 .}
18. 18. else {
19. 19. Ext. msg. Alert ('failed', 'logon failed, please log on again ');
20. 20 .}
21. 21 .}
22. 22 .});

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