我有一个h:commandLink内幕rich:dataTable。当我单击命令链接时，我将 FacesMessage 添加到上下文并重定向到相同的消息。我h:messages在页面上有一个标签来显示任何面孔消息。我能够显示消息，但我收到以下警告并且消息没有被清除。
警告：JSF1095：在我们尝试为 flash 设置传出 cookie 时，响应已经提交。存储到闪存中的任何值在下一次请求时都将不可用。
我正在使用 JSF2.0、RF4.0.0.Final。以下是代码
索引.xhtml
<?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:f="http://java.sun.com/jsf/core"
xmlns:rich="http://richfaces.org/rich">
<h:head>
<title>DataTable Test</title>
</h:head>
<h:body>
<h:form prependId="false">
<rich:panel header="Data table test">
<br/><br/>
<rich:dataTable id="dTable" value="#{myBean.allInventory}" var="inv" style="margin: auto; width: 100%; min-width: 750px;"
rows="10" onrowmouseover="this.style.backgroundColor='#A0A0A0'"
onrowmouseout="this.style.backgroundColor='#{a4jSkin.tableBackgroundColor}'">
<rich:column>
<f:facet name="header">
<h:outputText value="Sl No" />
</f:facet>
<h:outputText value="#{inv.slno}" />
</rich:column>
<rich:column>
<f:facet name="header">
<h:outputText value="Item 1" />
</f:facet>
<h:commandLink id="docMessage" title="Click for details" action="#{myBean.cLink(inv)}" value="#{inv.item1}"/>
</rich:column>
<rich:column>
<f:facet name="header">
<h:outputText value="Item 2" />
</f:facet>
<h:outputText value="#{inv.item2}" />
</rich:column>
<f:facet name="footer">
<rich:dataScroller id="dataScroll" for="dTable"/>
</f:facet>
</rich:dataTable>
<h:messages id="messages" globalOnly="true" layout="table" ></h:messages>
</rich:panel>
</h:form>
</h:body>
MyBean.java
package com.mypkg;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.enterprise.context.SessionScoped;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.inject.Named;
@Named
@SessionScoped
public class MyBean implements Serializable {
private List<Inventory> allInventory = null;
/**
* @return the allInventory
*/
public List<Inventory> getAllInventory() {
if (allInventory == null) {
allInventory = new ArrayList<Inventory>();
for (int i = 0; i < 100; i++) {
Inventory e = new Inventory();
e.setSlno(i + 1);
e.setItem1("Item1" + Math.random());
e.setItem2("Item2" + Math.random());
allInventory.add(e);
}
}
return allInventory;
}
public String cLink(Inventory inv) {
FacesContext.getCurrentInstance().getExternalContext().getFlash().setKeepMessages(true);
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Sample Error Message", "Sample Error Message"));
return "index?faces-redirect=true";
}
/**
* @param allInventory the allInventory to set
*/
public void setAllInventory(List<Inventory> allInventory) {
this.allInventory = allInventory;
}
}
库存.java
/* * 要更改此模板，请选择工具 | 模板 * 并在编辑器中打开模板。*/
package com.mypkg;
public class Inventory {
private int slno;
private String item1;
private String item2;
/**
* @return the slno
*/
public int getSlno() {
return slno;
}
/**
* @param slno the slno to set
*/
public void setSlno(int slno) {
this.slno = slno;
}
/**
* @return the item1
*/
public String getItem1() {
return item1;
}
/**
* @param item1 the item1 to set
*/
public void setItem1(String item1) {
this.item1 = item1;
}
/**
* @return the item2
*/
public String getItem2() {
return item2;
}
/**
* @param item2 the item2 to set
*/
public void setItem2(String item2) {
this.item2 = item2;
}
}