我遇到了基本的JSF 2.0程序问题!我试图实现Flash范围,我已经将信息传递到第二页,但现在在引用闪存变量时遇到了问题。使用JSF 2.0 Flash范围问题
这是我与它的豆第一页,这工作得很好:
<?xml version='1.0' encoding='UTF-8' ?>
<!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"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<title>Welcome to the JSF PoCs project</title>
</h:head>
<h:body>
<h:form>
<h1>Welcome to the JSF PoCs project</h1>
<h:outputText value="Name: "/>
<h:inputText id="txtName" value="#{registerBean.name}"/>
<h:outputText value="EMail: "/>
<h:inputText id="txtEMail" value="#{registerBean.email}"/>
<h:commandButton value="register" action="#{registerBean.register}"/>
<h:outputText></h:outputText>
</h:form>
</h:body>
</html>
import javax.faces.bean.ManagedBean;
@ManagedBean(name="registerBean")
public class RegisterBean {
private String name;
private String email;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String register() {
JSFUtils.flashScope().put("registerBean", this);
return "next";
}
}
这就是问题的所在!它在heading1标签中显示正确的数据,但不会用相同的数据设置下一个bean变量?
现在我的问题是,为什么它为标题标记工作,但不设置另一个bean变量?
<?xml version='1.0' encoding='UTF-8' ?>
<!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"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:f="http://java.sun.com/jsp/jstl/functions">
<h:head>
<title>Welcome to the JSF PoCs project</title>
</h:head>
<h:body>
<h:form>
<c:set target="${confirmBean}" property="name" value="# {flash.registerBean.name}"/>
<c:set target="${confirmBean}" property="email" value="${flash.registerBean.email}"/>
<h1>Your User Name will be #{flash.registerBean.name} and email will be # {flash.registerBean.email}</h1>
<h:commandButton value="confirm" action="#{confirmBean.confirm}"/>
</h:form>
</h:body>
</html>
import javax.faces.bean.ManagedBean;
@ManagedBean(name="confirmBean")
public class ConfirmBean {
private String name;
private String email;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String confirm() {
JSFUtils.flashScope().put("confirmBean", this);
return "confirmPage";
}
}
按下按钮后,在confirm.xhtml它引导到这个页面:
<?xml version='1.0' encoding='UTF-8' ?>
<!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"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<title>Welcome to the JSF PoCs project</title>
</h:head>
<h:body>
You have now registered with: #{flash.confirmBean.name} and # {flash.confirmBean.email}<br/>
</h:body>
</html>
感谢提前任何帮助!!!!
哎你得到与'@ ViewScope'任何解决方案? – 2012-03-14 15:42:15