Forum:

bean in JSP cannot be resolved

Ranch Hand

Posts: 51

posted 15 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

My first tutorial on JSF ... I get a warning om my JSP file using JSF tags ...

userLogin.jsp

<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>

<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
	<base href="<%=basePath%>">

<title>My JSF 'userLogin.jsp' starting page</title>
	
</head>
  
<body>
	<f:view>
		<f:loadBundle basename="com.jsfdemo.MessageBundle" var="bundle"/>

<h:form id="loginForm" rendered="true">
		<h:panelGrid>
			<h:outputLabel rendered="true" for="userName">
				<h:outputText value="#{bundle.user_name_label}" />
			</h:outputLabel>
			<h:inputText value="#{UserBean.userName}" rendered="true"
				required="true" id="userName" />		
		</h:panelGrid>
		<br>
	
		<h:panelGrid>
			<h:outputLabel rendered="true" for="password">
				<h:outputText value="#{bundle.user_password_label}" />
			</h:outputLabel>
			<h:inputSecret value="#{UserBean.password}" rendered="true"
				required="true" redisplay="false" id="password" />		
		</h:panelGrid>
		<br>
		<h:commandButton value="#{bundle.login_button_label}" rendered="true"
			action="#{UserBean.loginUser}" id="submit" />
			 
	</h:form>
</f:view>
</body>
</html>

I get a yellow exclamation mark which complains on all UserBean that "UserBean cannot be resolved" ...

faces-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN" "http://java.sun.com/dtd/web-facesconfig_1_1.dtd">

<faces-config >
	
	<managed-bean>
		<managed-bean-name>UserBean</managed-bean-name>
		<managed-bean-class>
			com.jsfdemo.bean.UserBean
		</managed-bean-class>
		<managed-bean-scope>session</managed-bean-scope>
		<managed-property>
			<property-name>userName</property-name>
			<property-class>java.lang.String</property-class>
			<value></value>
		</managed-property>
		<managed-property>
			<property-name>password</property-name>
			<property-class>java.lang.String</property-class>
			<value></value>
		</managed-property>
	</managed-bean>
	
	<navigation-rule>
		<from-view-id>/userLogin.jsp</from-view-id>
		<navigation-case>
			<from-outcome>success</from-outcome>
			<to-view-id>/userLoginSuccess.jsp</to-view-id>
		</navigation-case>
		<navigation-case>
			<from-outcome>failure</from-outcome>
			<to-view-id>/userLogin.jsp</to-view-id>
		</navigation-case>
	</navigation-rule>
	<navigation-rule>
		<from-view-id>/userLoginSuccess.jsp</from-view-id>
	</navigation-rule>

</faces-config>

UserBean

package com.jsfdemo.bean;

import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;

/**
 * @author Riyad
 *
 */
public class UserBean { //extends Object {

private String password;
	private String userName;
	
	public UserBean() {

}

/**
	 * @return Returns the password.
	 */
	public String getPassword() {
		return password;
	}

/**
	 * @param password The password to set.
	 */
	public void setPassword(String password) {
		this.password = password;
	}

/**
	 * @return Returns the userName.
	 */
	public String getUserName() {
		return userName;
	}

/**
	 * @param userName The userName to set.
	 */
	public void setUserName(String userName) {
		this.userName = userName;
	}
	
    public String loginUser() {
        if("myeclipse".equals(getUserName()) && "myeclipse".equals(getPassword()))
            return "success";
       
        FacesContext facesContext = FacesContext.getCurrentInstance();
        FacesMessage facesMessage = new FacesMessage(
            "You have entered an invalid user name and/or password");
        facesContext.addMessage("loginForm", facesMessage);
       
        return "failure";
    } 
}

Maybe the scope problem, or maybe MyEclipse related issues ???

Bauke Scholtz

Ranch Hand

Posts: 2458

posted 15 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

It's just a warning, not an error. Just run it. Does it work? No worries then.

An IDE is just a tool, not some magic.

She still doesn't approve of my superhero lifestyle. Or this shameless plug:

Gift giving made easy with the permaculture playing cards

https://coderanch.com/t/777758/Gift-giving-easy-permaculture-playing