JSP for loop to determine which button is clicked _jsp programming

1, do the message board, encountered in the database for the loop, to determine the click of which button is the case?

2, click into the JS method

Copy Code code as follows:

<script>
function method (ID) {
alert (ID);
}
</script>

Copy Code code as follows:

<%for (User u:list) {%>

<input type= "button" Id=<%=u.getid () onclink= "method" (' <%=u.getid ()%> "')%>

<%}%>

3, see clearly onclink inside the assembling method first ', after '.