javax.servlet.ServletException: Cannot get value for express
I m having problem with running of my JSP page which is calling managed bean properties. I dont know wht thing is missing but I hope with review of u ppl I will got the solution..
convert.jsp:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%@taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<html>
<head>
</head>
<body>
<f:view>
<html>
<head>
<title>Celsius converter</title>
</head>
<body>
<h1>Celcius Convertersss</h1>
<hr>
<h:form>
<h:inputText value="#{pageBean.celsius}" />
<h:outputText value="Celsius" /><br/>
<h:outputText value="#{pageBean.fahrenheit}" />
<h:outputText value="Fahrenheit" /><br/>
<h:commandButton value="Convert" action="#{pageBean.convertToFahrenheit}" />
</h:form>
</body>
</html>
</f:view>
</body>
</html>faces-config.xml:
<?xml version="1.0"?> <!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> <!--Now this config file is empty--> <managed-bean> <managed-bean-name>pageBean</managed-bean-name> <managed-bean-class>jsfbean.PageBean</managed-bean-class> <managed-bean-scope>request</managed-bean-scope> </managed-bean> </faces-config>
PageBean:
package jsfbean;
public class PageBean {
private Double celsius = null;
private Double fahrenheit = null;
public PageBean(){
}
public void setCelsius(Double celsius){
this.celsius = celsius;
}
public Double getCelsius(){
return celsius;
}
public void setFahrenheit(Double fahrenheit){
this.fahrenheit = fahrenheit;
}
public Double getFahrenheit(){
return fahrenheit;
}
public void convertToFahrenheit(){
setFahrenheit(new Double(getCelsius().doubleValue() * 1.8 + 32));
}
}
web.xml:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"> <web-app> <display-name>The simplest JSF application.</display-name> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.jsf</url-pattern> </servlet-mapping> <listener> <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class> </listener> </web-app>
Please share if u have solve this problem....
Thx