Question

I am not able to invoke a method in a JSF backing bean. I am getting this error.

(org.apache.jasper.el.JspMethodNotFoundException: /login.jsp(40,26)
‘#{login_bean.dbDelete}’ Method not found:
[e-mail]() )

The method signature is below:

public void dbDelete(String UName) {
    // 
}

The JSP code calling the method is:

 <h:commandButton action="#{login_bean.dbDelete}" value="Delete" type="submit"/>

How is this caused and how can I solve it?

Answer 1

<h:commandButton action="#{login_bean.dbDelete}" value="Delete" type="submit"/>

This action expects an argumentless method.

public void dbDelete() {
    // ...
}

So to fix this problem, either just remove String UName from your method signature, or provide a valid argument (works in EL 2.2 only):

<h:commandButton action="#{login_bean.dbDelete(uName)}" value="Delete" type="submit"/>