jsf中Map值的使用及jsf中数组长度的获取

public class MapBean {

	private Map testMap = new HashMap();

	public MapBean() {
		testMap.put("key1", "value1");
		testMap.put("key2", "value2");
		testMap.put("key3", "value3");
		testMap.put("key4", "value4");
		testMap.put("key5", "value5");
	}

	public Map getTestMap() {
		return testMap;
	}

	public void setTestMap(Map testMap) {
		this.testMap = testMap;
	}
}

 xtml的内容：

<?xml version="1.0" encoding="UTF-8"?>
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
	xmlns:ui="http://java.sun.com/jsf/facelets"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:a4j="http://richfaces.org/a4j"
	xmlns:rich="http://richfaces.org/rich"
	xmlns:c="http://java.sun.com/jstl/core"
	xmlns:fn="http://java.sun.com/jsp/jstl/functions">
	<!-- 显示列表页面 -->
	<h:form>
		<h:panelGrid columns="2">
			<c:forEach items="${mapBean.testMap}" var="entry">
				<h:outputText value="${entry.key}" style="font:12px;width:20px;" />
				<h:inputText value="${entry.value}" style="font:12px;width:150px;" />
			</c:forEach>
		</h:panelGrid>
	</h:form>
</ui:composition>

 

已知key获取value的方法：

<fc:render debugMode="true"
										chartId="#{inforReportBean.chartMap[row.cells[index-1].cellContent].chartID}"
										filename="FusionCharts/#{inforReportBean.chartMap[row.cells[index-1].cellContent].chartStyle.chartFile}"
										width="#{inforReportBean.chartMap[row.cells[index-1].cellContent].widthPx}"
										height="#{inforReportBean.chartMap[row.cells[index-1].cellContent].heightPx}"
										xml="#{inforReportBean.chartMap[row.cells[index-1].cellContent].dataxml}" />

 获取数组的长度

1. ${fn:length(listComment)}     
2. ${fn:length(listComment)}