list Freemarker 中的字符串列表
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List of String in Freemarker
提问by Lily
I have a list of string in java code:
我在java代码中有一个字符串列表：
List<String> keywords = new ArrayList<String>();
keywords.add("Apple");
keywords.add("Banana");
and I would like to display the keywords using Freemarker: Apple, Banana
我想使用 Freemarker 显示关键字：Apple、Banana
How to do that?
怎么做？
PS:
I read through the manual and found some articles suggesting using <#list>, but the output is:
Apple
PS：我通读了手册，发现了一些建议使用的文章<#list>，但输出是：Apple
Banana
香蕉
采纳答案by idrosid
FreeMarker preserves your spaces (and EOL) but does not add any by itself. So, just put everything in the same line:
FreeMarker 会保留您的空间（和 EOL），但不会自行添加任何空间。因此，只需将所有内容放在同一行中：
<#list myListName as item>${item}</#list>
回答by NickGreen
If you want a comma-separated list, you can use the following:
如果你想要一个逗号分隔的列表，你可以使用以下内容：
<#list seq as x>
${x_index + 1}. ${x}<#if x_has_next>,</#if>
</#list>
see: http://freemarker.org/docs/ref_directive_list.html#pageTopTitle
请参阅：http: //freemarker.org/docs/ref_directive_list.html#pageTopTitle
回答by Vincent Cantin
Since the version 2.3.20 of Freemarker, there is a built-in command for comma-separated lists.
从 Freemarker 的 2.3.20 版本开始，有一个用于逗号分隔列表的内置命令。
For example, the template:
例如，模板：
<#assign colors = ["red", "green", "blue"]>
${colors?join(", ")}
<#assign colors = ["red", "green", "blue"]>
${colors?join(", ")}
.. will generate:
.. 会产生：
red, green, blue
红、绿、蓝
回答by Erik Pragt
Since version 2.3.23, you can also use the following code:
从 2.3.23 版本开始，您还可以使用以下代码：
<#list users as user>
<div>
${user}<#sep>, </#sep>
</div>
</#list>
Taken from the sep directive.
取自sep 指令。
回答by skaffman
Freemarker provides some features for whitespace control, see http://freemarker.sourceforge.net/docs/dgui_misc_whitespace.html
Freemarker 提供了一些空白控制的功能，参见http://freemarker.sourceforge.net/docs/dgui_misc_whitespace.html
