1) Create an action class - ErrorProne.java - and place it in the src folder of the Web Application. The execute() method of this class throws an exception,
2) Configure the action in the struts.xml file within the package element
3) Create the custom JSP that will be displayed when the exception occurs - error-struts2.jsp
package info.icontraining.struts2;
public class ErrorProne {
public String execute() throws Exception {
throw new Exception ( "Routine Code Explosion");
}
}
2) Configure the action in the struts.xml file within the package element
<package ... >
...
<global-results>
<result name="Error">/error-struts2.jsp</result>
</global-results>
<global-exception-mappings>
<exception-mapping exception="java.lang.Exception" result="Error"/>
</global-exception-mappings>
...
<action name="ErrorProne" class="info.icontraining.struts2.ErrorProne">
...
</package>
3) Create the custom JSP that will be displayed when the exception occurs - error-struts2.jsp
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<body>
<p>This is a custom error page that displays when an Exception is thrown in any Struts2 component</p>
<br/>
<s:property value="%{exception.message}" />
<s:property value="%{exceptionStack}" />
</body>
</html>
3) Test the code with the following URL in the browser,
http://localhost:8080/WebAppName/ErrorProne.action
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