I did a little work with the dashboard JSF app, but didn’t like it. I think I’ll go back to the original plan with multiple JSP pages.
In my managed bean, I threw a String into the JSF message and displayed that message on the index.jsp
package com.mcnz.jsf.bean;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
public class RPSBean {
private String clientGesture = null;
private String computerGesture = null;
public String getClientGesture() {return clientGesture;}
public void setClientGesture(String clientGesture) {this.clientGesture = clientGesture;}
public String getComputerGesture() {return computerGesture;}
public void setComputerGesture(String computerGesture) {this.computerGesture = computerGesture;}
public String doRockPaperScissorsGame() {
String result = "success";
java.util.Map requestParameterMap = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
this.computerGesture = "rock";
String message = null;
if (clientGesture.equalsIgnoreCase("scissors")){
//result = "youlose";
message = "I picked Rock. You lose!";
}
if (clientGesture.equalsIgnoreCase("paper")){
//result = "youwin";
message = "I picked rock. You win!";
}
if (clientGesture.equalsIgnoreCase("rock")){
//result = "tie";
message = "We both picked rock. It's a tie.";
}
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, message, null));
return result;
}
}
Personally, that’s not a good use of message. After all, that should really be for errors or warning, not normal communication between client and server.
I just used the h:messages JSF tag for display. It worked, but as I said, I don’t like it. I’m going back and will now focus on input validation.
<body>
Please chose between Rock Paper and Scissors:
<h:form id="rpsgame" >
<h:inputText id="gesture" value="#{rpsbean.clientGesture}"></h:inputText>
<h:commandButton id="submit" type="submit" value="Play!" action="#{rpsbean.doRockPaperScissorsGame}" ></h:commandButton>
</h:form>
<h:messages/>
</body>
