From form submission return values are implemented using post or get Methods

You can use the post or get method of jquery to implement ($. post (url, params, callback) $. get (url, params, callback ))

Return Value:XMLHttpRequest

Parameters:

• Url (String): the URL address of the loaded page.
• Params (Map): (optional) Key/value pair parameters sent to the server.
• Callback (Function): (optional) Function executed when the remote page is loaded.

When submitting a form, a prompt box Indicating successful or failed operations is displayed after the submission is complete. At this time, the callback function will be used.

Example:

Page Submission Form
Copy codeThe Code is as follows:
Function onSubmita ()
{
Var args = {
"Resolution. cif": $ ("input [name = 'Resolution. cif ']"). val (),
"Resolution. fourCif": $ ("input [name = 'Resolution. fourCif ']"). val (),
"Resolution. HeightP": $ ("input [name = 'Resolution. HeightP ']"). val (),
"Resolution. widthP": $ ("input [name = 'Resolution. widthP ']"). val (),
"Resolution. vga": $ ("input [name = 'Resolution. vga ']"). val ()
};
If (confirm ("are you sure you want to submit modifications to the bitstream settings? ")){
$. Post ("<% = basePath %> old/ResolutionAction-resolution.action? Type = set ", args, function (data ){
Alert (data );
});
}

}

Server

Execute the action and return the returned value
Copy codeThe Code is as follows:
//..... Action Method
GetResponse (). setContentType ("text/html; charset = UTF-8 ");
GetResponse (). getWriter (). print ("execution successful !");