JSF页面中给定的输入未将该值设置为托管Bean变量 [英] Input given in JSF page does not set that value to managed bean variable
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问题描述
是JSF的新手.我在我的应用程序中使用JSF 2和primefaces 4.0.如标题中所述，xhtml页面中给定的输入值未将值设置为ManagedBean.我已经尝试了所有可能的组合.
Am a newbie to JSF. Am using JSF 2 and primefaces 4.0 in my application. As stated in the Title, the input value given in the xhtml page, does not set the value to the ManagedBean. I have tried all the possible combination.
growlMessage.xhtml
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
</h:head>
<h:body>
<h:form>
<p:growl id="growl" showDetail="true" sticky="true" />
<p:panel id="panelID" header="Growl">
<h:panelGrid columns="2" cellpadding="5">
<h:outputLabel for="msg" value="Message:" />
<p:inputText id="msg" value="#{growlView.message}" required="true" />
</h:panelGrid>
<p:commandButton value="Save" actionListener="#{growlView.saveMessage}"/>
</p:panel>
</h:form>
</h:body>
</html>
` GrowlView.java:
import java.io.Serializable;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.context.FacesContext;
@ManagedBean
@ViewScoped
public class GrowlView implements Serializable{
private String message;
public GrowlView() {
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public void saveMessage(){
System.out.println("@@@@@ hello");
System.out.println("@@@@@"+ getMessage());
FacesContext context = FacesContext.getCurrentInstance();
context.addMessage(null, new FacesMessage("Successful", "Your message: "+message));
context.addMessage(null, new FacesMessage("Second message", "Additional Message details"));
}
}
推荐答案
尝试以下代码:使用process和partialSubmit属性:
try this following code: using the process and partialSubmit attributes:
<p:commandButton value="Save" actionListener="#{growlView.saveMessage}" update="growl" process="@form" partialSubmit="true"/>
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