Question

我刚刚使用Beans测试了我的GlassFish实验。我遇到的问题是唯一的问题是我的财产message。我打电话的时候似乎并不喜欢。但是我对任何其他属性没有任何问题。

这是我的课程，它可以获取，设置和执行某些操作。

@ManagedBean(name = "userNumberBean")
@SessionScoped
public class UserNumberBean implements Serializable {

Integer randomInt;
Integer userNumber;
String response;
String message = "";

/**
 * Creates a new instance of UserNumberBean
 */
public UserNumberBean() {

}
public Integer getUserNumber() {
    return userNumber;
}

public void setUserNumber(Integer userNumber) {
    this.userNumber = userNumber;
}

public String getMessage() {
    return message;
}

public String getResponse() {
    try {

        if (userNumber != null && userNumber.equals(randomInt)) {
            FacesContext fc = FacesContext.getCurrentInstance();
            ExternalContext ec = fc.getExternalContext();
            ec.redirect("index.html");
            this.message = "Yay,you guessed it!";
            response = "";
            return response;
        }
        response = "Sorry, "+userNumber+" isn't corret. Guess again.";
    } catch (Exception e) {
        response = "Unable to redirect page.";
    }
    return response;
}

public void generateRandomNumber() {
    try {
        Random randomGR = new Random();
        randomInt = new Integer(randomGR.nextInt(10));
        System.out.println("Random number generated is: "+randomInt);
        FacesContext fc = FacesContext.getCurrentInstance();
        ExternalContext ec = fc.getExternalContext();
        ec.redirect("greeting.xhtml");
    } catch (IOException e) {
        FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_ERROR
                , e.getMessage(), "");
        FacesContext.getCurrentInstance().addMessage(null, facesMsg);
    }
}

}

这是我使用userNumberBean.message

调用邮件的地方

    <body>

    <ui:composition template="./template.xhtml">

        <ui:define name="title">
            Greeting
        </ui:define>

        <ui:define name="box" class="subContainer greyBox">
            <h4>Hi, my name is Duke!</h4>

            <h5>Would you like to play a guessing game?</h5>
            <h:form>
                <h4><h:outputText escape="false" value="#{userNumberBean.message}"/></h4>
                <p:commandButton id="submit" value="Play" action="#{userNumberBean.generateRandomNumber()}" />
            </h:form>
        </ui:define>

    </ui:composition>

</body>

类'org.usd.csci.guessnumber.UserNumberBean'没有属性'message'

0 个答案: