Freemarker list (length, traversal, subscript, nesting, sort)

1. Freemarker Gets the size of the list:

Java
Java code

1. arraylist<string> list = new arraylist<string> ();

Freemaker
JavaScript code

1. ${list?size}

2. List traversal:

JavaScript code

1. < #list animals as being>
2. <tr>
3. <td>${being.name}${being.price}<td>
4. </tr>
5. </#list >

The subscript number in the 3.list traversal:

_index is a property of list
JavaScript code

1. < #list list as a>
2. ${a_index}
3. </#list >

4. Nesting of list:
JavaScript code

1. < #list jssklist as jsskvo>
2. < #list kclist as kcvo>
3. <#if kcvo.kch=jsskvo.kch> (KCVO with number and name, and JSSKVO only number)
4. ${KCVO.KCM}
5. </#if>
6. </#list >
7. </#list >

5. List sort:
Ascending. Sort_by ()
JavaScript code

1. < #list list?sort_by ("field") as X>
2. </#list >

Descending. Sort_by ()? reverse
JavaScript code

1. < #list list?sort_by ("field")? reverse as X>
2. </#list >

6. The list tag traverses the map:
JavaScript code

1. < #list Avertisementtypemap?keys as key>
2. <option value="${key}" >${avertisementTypeMap[key]}</option>
3. </#list >

http://lauy.iteye.com/blog/1774917

Freemarker list (length, traversal, subscript, nesting, sort)