The value comes out from jsp. However, I don't know how to send the value as ajax data.

I tried to print the jsp value and change it, but it failed. What should I do?
What should I put in the data in ajax?

This is jsp.

The output of “out.println(name + ” : ” +obj.toString());” is “name : test_00”.

The output of “auth.getAttributes()” is “{name=test_00}”.

And I want it to be sent right away when onload Is this correct?

Please tell me the answer how to do this

    <%
    if (auth.isAuthenticated())
    {
    out.println("auth.getErrorMessage() :"+auth.getErrorMessage());
    }
    else
    {
    Map<String, Object> attr = auth.getAttributes();
    
    if (attr.isEmpty())
    {
    out.println("Attribute is empty.");
    }
    else
    {
    Collection<String> keys = attr.keySet();
    for (String name:keys)
    {
    Object obj = attr.get(name);
    
    out.println(name + " : " + obj.toString());
    out.println("<br>");
    }
    }
    }
    %>

<script>
    window.onload  = function() {
    acs();
    }
    
    function acs(){
    $.ajax({
    //url: "/login",
    type : "POST",
    data : '???????',> I don't konw
    dataType: 'json',
    success: function (data) {
    console.log(data);
    }
    },
    
    });
    }
</script>