JSF datatable 中使用 commandlink 和 commandbutton 问题

fengchong719

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我在JSF开发中遇到了一个问题。首先我的环境如下:
jsf 1.2 , myeclipce 8.5 , tomcat 6
代码如下，在datatable 外面的 commandlink 可以使用，而使用datatable 里的 commandlink 则是跳回本页，有没有大虾知道是怎么回事？
jsf coding:

<body>
	<f:view>
		<h:form id="actionForm">
		<h:panelGrid styleClass="titleBackground" id="listTitle" columns="1">
			<h:outputText styleClass="PrimarySubheader" id="label_GeneralProfile" value="用户搜索"></h:outputText>
		</h:panelGrid>
		<h:panelGrid columns="5">
			<h:outputLabel value="用户名称" styleClass="outputLabel"></h:outputLabel>
			<h:inputText value="#{pc_UserView.user.userName}"></h:inputText>
			<h:outputText styleClass="outputLabel" value="" style="margin-left: 20px"></h:outputText>
			<h:outputLabel value="用户状态" styleClass="outputLabel"></h:outputLabel>
			<h:selectOneMenu value="#{pc_UserView.user.state}">
				<f:selectItem itemLabel="" itemValue=""/>
				<f:selectItem itemLabel="正常" itemValue="1"/>
				<f:selectItem itemLabel="非正常" itemValue="2"/>
			</h:selectOneMenu>
			
			<h:outputLabel value="用户帐号" styleClass="outputLabel"></h:outputLabel>
			<h:inputText value="#{pc_UserView.user.loginId}"></h:inputText>
			<h:outputText styleClass="outputLabel" value="" style="margin-left: 20px"></h:outputText>
			<h:commandButton id="display" value="Display." type="submit" action="#{pc_UserView.getUserList}"></h:commandButton>
			
		</h:panelGrid>

		<h:dataTable id="userTable" value="#{pc_UserView.allUsers}" var="userObj" 
				styleClass="dataTable" headerClass="headerClass" footerClass="footerClass"
				rowClasses="rowClass1, rowClass2" border="1" cellpadding="2" cellspacing="0" 
				style="text-align: left" width="100%" >
			<h:column id="userId">
				<f:facet name="header">
					<h:outputText styleClass="SecondarySubheader" value="用户标识"></h:outputText>
				</f:facet>
				<h:outputText value="#{userObj.userId}"></h:outputText>
				<f:attribute value="180" name="width" />
			</h:column>
			<h:column id="userName">
				<f:facet name="header">
					<h:outputText styleClass="SecondarySubheader" value="用户名称"></h:outputText>
				</f:facet>
				<h:outputText value="#{userObj.userName}"></h:outputText>
			</h:column>
			<h:column id="loginId">
				<f:facet name="header">
					<h:outputText styleClass="SecondarySubheader" value="登录账号"></h:outputText>
				</f:facet>
				<h:outputText value="#{userObj.loginId}"></h:outputText>
			</h:column>
			<h:column id="state">
				<f:facet name="header">
					<h:outputText styleClass="SecondarySubheader" value="用户状态"></h:outputText>
				</f:facet>
				<h:outputText value="#{userObj.state == 1 ? '正常' : '非正常'}"></h:outputText>
			</h:column>
			<h:column id="lastUpdateDate">
				<f:facet name="header">
					<h:outputText styleClass="SecondarySubheader" value="最后更新时间"></h:outputText>
				</f:facet>
				<h:outputText value="#{userObj.lastUpdateDate}"></h:outputText>
			</h:column>
			<h:column id="options">
				<f:facet name="header">
					<h:outputText styleClass="SecondarySubheader" value="操作"></h:outputText>
				</f:facet>
				<h:commandLink value="Edit" action="#{pc_UserEdit.toEdit}" immediate="true" >
					<f:param name="userId" value="#{userObj.userId}"></f:param>
				</h:commandLink>
			</h:column>
		</h:dataTable>
		<h:commandLink value="Edit" action="#{pc_UserEdit.toEdit}" immediate="true" >
					<f:param name="userId" value="#{userObj.userId}"></f:param>
		</h:commandLink>
		</h:form>
		
	</f:view>
</body>

navigation rule coding :

<?xml version="1.0" encoding="UTF-8"?>
<faces-config version="1.2" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd">
	
	<!-- Managed Beans -->
	<managed-bean>
		<managed-bean-name>pc_UserView</managed-bean-name>
		<managed-bean-class>com.ideal.user.managed.UserView</managed-bean-class>
		<managed-bean-scope>request</managed-bean-scope>
		<managed-property>
			<property-name>user</property-name>
			<property-class>com.ideal.user.vo.UserBean</property-class>
			<value>#{user}</value>
		</managed-property>
	</managed-bean>
	<managed-bean>
		<managed-bean-name>pc_UserEdit</managed-bean-name>
		<managed-bean-class>com.ideal.user.managed.UserEdit</managed-bean-class>
		<managed-bean-scope>request</managed-bean-scope>
		<managed-property>
			<property-name>user</property-name>
			<property-class>com.ideal.user.vo.UserBean</property-class>
			<value>#{user}</value>
		</managed-property>
	</managed-bean>
	<managed-bean>
		<managed-bean-name>pc_UserRegister</managed-bean-name>
		<managed-bean-class>com.ideal.user.managed.UserRegister</managed-bean-class>
		<managed-bean-scope>request</managed-bean-scope>
	</managed-bean>
	<managed-bean>
		<managed-bean-name>pc_Index</managed-bean-name>
		<managed-bean-class>com.ideal.user.managed.Index</managed-bean-class>
		<managed-bean-scope>request</managed-bean-scope>
	</managed-bean>
	<!-- View Object Beans -->
	<managed-bean>
		<managed-bean-name>user</managed-bean-name>
		<managed-bean-class>com.ideal.user.vo.UserBean</managed-bean-class>
		<managed-bean-scope>request</managed-bean-scope>
	</managed-bean>
	<!-- 全局 
	<navigation-rule>
		<navigation-case>
			<from-outcome>edit</from-outcome>
			<to-view-id>/userEdit.jsp</to-view-id>
		</navigation-case>
	</navigation-rule>-->
	<!-- 局部 -->
	<navigation-rule>
		<from-view-id>/userView.jsp</from-view-id>
		<navigation-case>
			<from-action>#{pc_UserView.toRegister}</from-action>
			<from-outcome>register</from-outcome>
			<to-view-id>/userRegister.jsp</to-view-id>
		</navigation-case>
		<navigation-case>
			<from-outcome>edit</from-outcome>
			<to-view-id>/userEdit.jsp</to-view-id>
		</navigation-case>
	</navigation-rule>
	
	<navigation-rule>
		<from-view-id>/userEdit.jsp</from-view-id>
		<navigation-case>
			<from-action>#{pc_userEdit.submitAction}</from-action>
			<from-outcome>success</from-outcome>
			<to-view-id>/userView.jsp</to-view-id>
		</navigation-case>
		<navigation-case>
			<from-action>#{pc_userEdit.submitAction}</from-action>
			<from-outcome>exception</from-outcome>
			<to-view-id>/userEdit.jsp</to-view-id>
		</navigation-case>
	</navigation-rule>
	
	<navigation-rule>
		<from-view-id>/userRegister.jsp</from-view-id>
	</navigation-rule>
	<navigation-rule>
		<from-view-id>/index.jsp</from-view-id>
		<navigation-case>
			<from-action>#{pc_Index.toUserView}</from-action>
			<from-outcome>userView</from-outcome>
			<to-view-id>/userView.jsp</to-view-id>
		</navigation-case>
	</navigation-rule>
</faces-config>

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