belClass";
} else {
return "errorClass";
}
}
//remove simple props
JSF 1.2入门，第1部分 构建基本应用程序(14)
时间:2011-08-09 IBM Richard Hightower
更新 calculator.jsp
接下来，更新 calculator.jsp（见清单 25），让它显示错误消息并绑定到 calculatorController， 而不是直接绑定到 Calculator POJO：
清单 25. 更新后的 calculator.jsp
<?xml version="1.0" encoding="ISO-8859-1" ?>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Calculator Application</title>
<link rel="stylesheet" type="text/css"
href="<%=request.getContextPath()%>/css/main.css" />
</head>
<body>
<f:view>
<h:form id="calcForm">
<h4>Calculator 3</h4>
<h:messages infoClass="infoClass" errorClass="errorClass"
layout="table" globalOnly="true"/>
<h:panelGrid columns="3" rowClasses="oddRow, evenRow"
styleClass="formGrid">
<%-- First Number--%>
<h:outputLabel value="First Number" for="firstNumber"
styleClass="#{calculatorController.firstNumberStyleClass}"/>
<h:inputText id="firstNumber" label="First Number"
value="#{calculatorController.calculator.firstNumber}" required="true"
binding="#{calculatorController.firstNumberInput}" />
<h:message for="firstNumber" errorClass="errorClass"/>
<%-- Second Number--%>
<h:outputLabel id="snl" value="Second Number" for="secondNumber"
styleClass="#{calculatorController.secondNumberStyleClass}"/>
<h:inputText id="secondNumber" label="Second Number"
value="#{calculatorController.calculator.secondNumber}" required="true"
binding="#{calculatorController.secondNumberInput}"/>
<h:message for="secondNumber" errorClass="errorClass"/>
</h:panelGrid>
<div>
<h:commandButton action="#{calculatorController.add}" value="Add" />
<h:commandButton action="#{calculatorController.multiply}" value="Multiply" />
<h:commandButton action="#{calculatorController.divide}" value="Divide" />
<h:co
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