如何在JSP中的onClick（按钮）上调用Java Script函数？

Question

I would like to trigger the js function onClick from button. for some reason i am facing Function not defined.

Need to call this in JSP

// doUpdate function details
boolean doUpdate = request.getParameter("update")!=null;
String stateButton = request.getParameter("update");

if (doUpdate && catalogID != null && companyID != 0) {
    if(catalogManager!=null) {
        boolean success = catalogManager.updateStatus(new Integer(catalogID).intValue(),user, stateButton);
        if((stateButton.equals("Active")) && success) { 
    %>          
        <span class="TitleLevel01"><font color=green>Catalog is Activated.</font></span>
    <%
        }
        if((stateButton.equals("Active")) && !success) {
    %>
        <span class="TitleLevel01"><font color=red>Cannot activate subcatalog with Inactive parent.</font></span>
    <%      
        }
        if(!stateButton.equals("Active")) {
    %>                  
            <span class="TitleLevel01"><font color=green>Catalog is Deactivated.</font></span>
    <%      
            }
        }
    }

from this Form (looks like this)

 <form name="maintain_catalog_frm" id="maintain_catalog_frm" >
    <input type=hidden name="PID" value="">
    <input type="submit" name="update" value="Inactive" onClick="return doUpdate(document.maintain_catalog_frm);" >
    </form>

Answer 1

It means that the javascript is still not loaded.

It could be your cache, or you could be having some wrong path to the JS file. What is the path to the JS file , and has it been downloaded?

Answer 2

Do you have js in the jsp or have you included js file in your jsp?

Include your script in in your jsp.

It looks like you have a jsp not js to execute here.

Is companyid and catalogue initialised properly?