in http-session/src/main/java/org/apache/struts/helloworld/action/HelloWorldAction.java [44:54]
public String execute() throws Exception {
messageStore = new MessageStore();
//Action included a query string parameter of userName
//or a form field with name of userName
if (userName != null) {
messageStore.setMessage(messageStore.getMessage() + " " + userName);
}
increaseHelloCount();
return SUCCESS;
}