jsf 使用(转贴)

转自:http://bbs.hexiao.cn/read.php?fid=11&tid=333

JSF中并没有提供判断标签，请问大家对应这种情况是怎么处理的啊？
代码如下：
     
     

xml 代码

 

1. <ui:define name="QueryResultList">  
2.            <h:form style="margin:0px;">  
3.            <table width="90%" align="center">  
4.            <tr><td>  
5.                  <rich:dataTable id="datalist" rows="#{orgModel.pageSize}"  
6.                        onRowMouseOver="this.style.backgroundColor='#BDDFFF'"  
7.                        onRowMouseOut="this.style.backgroundColor='#F6F6F6'"  
8.                        columns="6" align="center" cellpadding="0" cellspacing="0"  
9.                        width="100%" border="0" var="org" value="#{orgModel.list}"  
10.                        rowClasses="row1class,row2class" colClasses="col15,col15,col10,col20,col10,col10,col10,col10"  
11.                        >  
12.                        <f:facet name="header">  
13.                              <rich:columnGroup>  
14.                                    <rich:column colspan="1">  
15.                                          <h:outputLabel value="机构名称"/>  
16.                                    rich:column>  
17.                                    <rich:column colspan="1">  
18.                                          <h:outputLabel value="机构代码" />  
19.                                    rich:column>  
20.                                    <rich:column colspan="1">  
21.                                          <h:outputLabel value="机构级别" />  
22.                                    rich:column>                                       
23.                                    <rich:column colspan="1">  
24.                                          <h:outputLabel value="备注" />  
25.                                    rich:column>  
26.                                    <rich:column colspan="1" >  
27.                                          <h:outputLabel value="修改" />  
28.                                    rich:column>  
29.                                    <rich:column colspan="1">  
30.                                          <h:outputLabel value="删除" />  
31.                                    rich:column>  
32.                                    <rich:column colspan="1">  
33.                                          <h:outputLabel value="业务用户浏览" />  
34.                                    rich:column>  
35.                                       
36.                              rich:columnGroup>  
37.                        f:facet>  
38.   
39.                        <h:column>  
40.                              <div align="center">  
41.                              <h:commandLink value="#{org.name}" action="#{orgModel.showSubList}">  
42.                                    <f:param value="#{org.code}" name="code"/>  
43.                              h:commandLink>                                 
44.                              div>  
45.                        h:column>  
46.                        <h:column>  
47.                              <h:outputText value="#{org.code}" />  
48.                        h:column>  
49.                        <h:column>  
50.                              <h:outputText value="#{org.orgLevel}" />  
51.                        h:column>                                       
52.                        <h:column>  
53.                              <h:outputText value="#{org.memo}" />  
54.                        h:column>  
55.                           
56.                        <h:column>  
57.                              <div align="center">  
58.                                 
59.                              <h:commandLink value="【修改】" action="#{orgModel.onUpdateInit}">  
60.                                    <f:param value="#{org.id}" name="id"/>  
61.                              h:commandLink>         
62.                              div>  
63.                        h:column>         
64.                        <h:column>  
65.                        <div align="center">  
66.                           如果org.allowDelete==true   
67.                                          <h:commandLink value="【删除】" action="#{orgModel.onDelete}">  
68.                                                <f:param value="#{org.id}" name="id"/>  
69.                                            h:commandLink>  
70.   
71.                         否则           <h:outputText value="不允许删除"/>                        div>                       
72.                        h:column>                                 
73.                        <h:column>  
74.                              <div align="center">  
75.                              <h:commandLink value="【浏览用户】" action="#{orgModel.onUpdateInit}">  
76.                                    <f:param value="#{org.id}" name="id"/>  
77.                              h:commandLink>         
78.                              div>  
79.                        h:column>                                                                                                   
80.                  rich:dataTable>  
81.                  td>tr>  
82.                  <tr><td>  
83.                  <rich:datascroller for="datalist" maxPages="#{orgModel.pages}" />  
84.            td>tr>  
85.            table>  
86.            h:form>  
87.      ui:define>  

看红色部分，当org.allowDelete==true时，输出一个链接，否则输出“不允许操作”几个字，应该怎么实现啊？

呵呵，啊
我找到了解决办法了

xml 代码

 

1. <h:column rendered="${org.allowDelete}">  
2.                           <div align="center">  
3.                                       <h:commandLink value="【删除】" action="#{orgModel.onUpdateInit}">  
4.                                             <f:param value="#{org.id}" name="id"/>  
5.                                       h:commandLink>  
6.                           div>                       
7.                     h:column>  
8.                     <h:column rendered="${!org.allowDelete}">  
9.                           <div align="center">  
10.                                 <h:outputText value="不允许删除"/>  
11.                           div>                       
12.                     h:column>