1.API网址
http://freemarker.sourceforge.net/docs/
2.一个Table的例子
- freemarker 对表格的控制
- 这里将所有需要在一个区域显示到数据全部add到一个叫做zbj的list中了
- <#assign a2=zbj> -->将list zbj赋值给a2,这里也应该判空的...
- <#if zbj?exists>
- <#list 0..zbj?size-1 as a1> -->从0--->zbj?size-1循环,此时可以将数据全部循环一边
- <#if a1%(4*ldList?size)==0> <tr></#if> -->模板语言支持运算符操作在这里用到了取余判断并写<tr>
- <td height="23"><input type="text" size="7" id="input1" value=${a2[a1]} name="alldata"/></td> -->写数据
- </#list>
- </#if>
- freemarker有一个内置函数叫做chunk,没有试出来,才做了这样的处理,应该chunk更能方便到将数据制作成需要到格子吧....
3.常用语法
- =======常用语法==========
- 三.
- EG.一个对象BOOK
- 1.输出 ${book.name}
- 空值判断:${book.name?if_exists },
- ${book.name?default(‘xxx’)}//默认值xxx
- ${ book.name!"xxx"}//默认值xxx
- 日期格式:${book.date?string('yyyy-MM-dd')}
- 数字格式:${book?string.number}--20
- ${book?string.currency}--<#-- $20.00 -->
- ${book?string.percent}—<#-- 20% -->
- 插入布尔值:
- <#assign foo=ture />
- ${foo?string("yes","no")} <#-- yes -->
- =============逻辑判断===========
- 2.
- a:
- <#if condition>...
- <#elseif condit
- inc 发布于2007-09-08 16:18:57
- ion2>...
- <#elseif condition3>......
- <#else>...
- 其中空值判断可以写成<#if book.name?? >
- </#if>
- b:
- <#switch value>
- <#case refValue1>
- ...
- <#break>
- <#case refValue2>
- ...
- <#break>
- ...
- <#case refValueN>
- ...
- <#break>
- <#default>
- ...
- </#switch>
- ========循环读取==========
- 3.
- <#list sequence as item>
- ...
- </#list>
- 空值判断<#if bookList?size = 0></#list>
- e.g.
- <#list employees as e>
- ${e_index}. ${e.name}
- </#list>
- <#if mole?default(0)!=0>
- =============用来压缩空白空间和空白的行========
- 用例
- <#assign x = " moo ">
- (<#compress>
- 1 2 3 4 5
- ${moo}
- test only
- I said, test only
- )
- 输出
- (1 2 3 4 5
- moo
- test only
- I said, test only)
- =======Sequence内置的计数器=======
- 3. Sequence内置的计数器: xxx_index
- 用途:显示序号
- 模板:
- <#list employees as e>
- ${e_index}. ${e.name}
- </#list>
- 输出:
- 1. Readonly
- 2. Robbin
- =======Sequence内置的分段器==============
- 4. Sequence内置的分段器: chunk
- 用途:某些比较BT的排版需求
- 模板:
- <#assign seq = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']>
- <#list seq?chunk(4) as row>
- <ul>
- <li><#list row as cell>${cell} </#list></li>
- </ul>
- </#list>
- <#list seq?chunk(4, '-') as row>
- <tr>
- <td><#list row as cell>${cell} </#list></td>
- </tr>
- </#list>
- 输出:
- <ul>
- <li>a</li>
- <li>b</li>
- <li>c</li>
- <li>d</li>
- </ul>
- <ul>
- <li>e</li>
- <li>f</li>
- <li>g</li>
- <li>h</li>
- </ul>
- <ul>
- <li>i</li>
- <li>j</li>
- </ul>
- <tr>
- <td>a</td>
- <td>b</td>
- <td>c</td>
- <td>d</td>
- </tr>
- <tr>
- <td>e</td>
- <td>f</td>
- <td>g</td>
- <td>h</td>
- </tr>
- <tr>
- <td>i</td>
- <td>j</td>
- <td>-</td>
- <td>-</td>
- </tr>
- ==========.设置缺省格式指令setting ============
- <#setting number_format = "#"/>
- ${1.234}
- 输出1
- <#setting number_format="0.##">
- ${1.234}
- 输出
- 1.23
- ==========包含文件指令 include ============
- <#include "header.htm"/>
- ==========导入macros指令 import =======
- <#import "../macros/pagination.ftl" as pagination>
- ==========freemarker的list============
- Scalar String:${scalarString}
- Scalar Number:${scalarNumber}
- Object is:${scalarObject}
- List使用样例-List元素为Scalar对象:
- <#list scalarList as value0>
- Scalar List值:${value0}
- </#list>
- List使用样例-List元素为User对象:
- <#list userList as listUser>
- List对象User Id值:${listUser.userId}
- </#list>
- Map使用样例-Map Values元素为Scalar :
- <#list scalarMap?keys as mykey>
- Scalar Map key is :${mykey}
- Scalar Map value is:${scalarMap[mykey]}
- </#list>
- Map使用样例-Map Values元素为User对象:
- <#list userMap?keys as key1>
- <#assign mapUser="${userMap[key1]}" >
- User Object is :${mapUser}
- <#--
- 以下方法有问题
- User is :${mapUser.userId} <br>
- -->
- </#list>
- =======FreeMarker中list排序=======
- 升序:
- <#list list?sort_by("time") as v>
- </#list>
- 降序:
- <#list list?sort_by("time") as v>
- </#list>
- ========freemarker在模板中定义变量=======
- 在模板中定义的变量有三种类型:
- plain变量:可以在模板的任何地方访问,包括include指令插入的模板,使用assign指令创建和替换
- <#include "/WEB-INF/index/top.html">
- =======freemarker.properties配置=========
- (1)解决输出中文乱码问题:
- default_encoding=UTF-8
- locale=zh_CN
- number_format=#
- (2)提高freemarker的性能
- template_update_delay=60000
- (3)freemarker的标签种类:
- ${..}
- # 代表是FTL tags
- <#if ...></#if>
- <#list totalList as elementObject>...</#list>
- @ ,代表用户自定义的标签
- <#-- --> 注释标签,注意不是<!-- -->
- ==============将图片整除换行====== <#if (u_index+1)%4=0>当图片超过五个就换行=======
- <table width="100%">
- <tr>
- <td><table width="100%">
- <tr>
- <#if map["最新-图片"]?exists>
- <#list map["最新-图片"] as u>
- <#if (u_index+1)%4=0>
- <td><table width="70" height="65" border="0" cellpadding="0" cellspacing="0">
- <tr>
- <td align="center" valign="middle" bgcolor="#6F7074">
- <a target="_blank" href="shownews.page?id=${u.id?default("")}&mole=2 "><img src="${u.chartpath?default('')}" width="67" height="41" border="0" /></a></td>
- </tr>
- <tr>
- <td align="center" bgcolor="#6F7074">
- <a target="_blank" href="shownews.page?id=${u.id?default("")}&mole=2 " class="tableff">
- <@jf.greet title=u.title len=4 /></a>
- </td>
- </tr>
- </table></td></tr><tr >
- <#else>
- <td><table width="70" height="65" border="0" cellpadding="0" cellspacing="0">
- <tr>
- <td align="center" valign="middle" bgcolor="#6F7074">
- <a target="_blank" href="shownews.page?id=${u.id?default("")}&mole=2 "><img src="${u.chartpath?default('')}" width="67" height="41" border="0" /></a></td>
- </tr>
- <tr>
- <td align="center" bgcolor="#6F7074">
- <a target="_blank" href="shownews.page?id=${u.id?default("")}&mole=2 " class="tableff">
- <@jf.greet title=u.title len=4 /></a>
- </td>
- </tr>
- </table></td>
- </#if>
- </#list>
- </#if>
- </tr>
- </table>
- </td>
- </tr>
- </table>
- </tr>
- </table></td>
- </#if>
- </#list>
- </#if>
- </tr>
- </table>
- </td>
- </tr>
- </table>
- =================freemarker中在application
- ${Application.web_title}
- 在类里:
- list=dser.indexvideo(cvo);
- if(list.size()!=0){
- map.put("最新",list);}
- 在html静态页里:
- <#import "/WEB-INF/ftl/index.ftl" as jf>
- (index.ftl
- <#macro greet title len>
- <#if title?length != 0>
- <#if (title?length>len)>
- ${title[0..len-1]} <#else>
- ${title?trim}
- </#if>
- <#else>
- ${title?default("")}
- </#if>
- </#macro>
- <#--时间比较-->
- <#macro vstime start end>
- <#if start?default("")==""||end?default("")=="">
- --
- <#else>
- <#assign starts=start?replace("-","") >
- <#assign ends=end?replace("-","") >
- <#if (starts?number>ends?number)>
- <font color="red">以过期</font>
- <#else>
- 未过期
- </#if>
- </#if>
- </#macro>
- )
- <#if map["最新"]?exists>
- <#list map["最新"] as u>
- ${u.filepath?default('')}
- <@jf.greet title=u.title len=6 />
- </#list></#if>