From form submission return value is implemented using post or get method_javascript skills

You can use jquery's post or get method to achieve this ($.post(url, params, callback) $.get(url, params, callback) )

Return value: XMLHttpRequest

Parameters:

•url (String): URL address of the loading page.
•params (Map): (Optional) Key/value pair parameters sent to the server.
•callback (Function): (optional) Function executed when the remote page is loaded.

When we submit a form, we usually require a pop-up of success/failure after the submission operation is completed. prompt box. At this time, the callback function is used.

Example:

Page submission form

Copy code Code 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 the changes to the code stream settings?")) {
$.post("<%=basePath%>old/ResolutionAction-resolution.action?type=set",args, function(data) {
alert(data);
});
}

}

The server

executes the action and returns the return value

Copy the code and the code is as follows:

//. . . . . action method
getResponse().setContentType("text/html;charset=UTF-8");
getResponse().getWriter().print("Execution successful!");