Freemarker - 查询地图(Freemarker - querying a Map)

 在Freemarker中，我有一个Map<Long, ...> （键是Long ）。 
 
 Freemarker的map[key]仅支持字符串键。 所以我尝试过map?api.get(0)但表现得像值不存在。 但如果我这样做 
 
<#list statsForThisBox as projID, val>
Project #${projID?c} has value: <b>${val???c}</b>
</#list>
 
 然后我看到条目在那里。 
 
 项目＃64256具有值：true项目＃0具有值：true 
 
 有没有办法查询Map的Long键？ （除了在Java中创建特殊函数。） 
 
 编辑：我在想类似的东西 
 
map?api.get("java.util.Long"?new(123))

In Freemarker, I have a Map<Long, ...> (the keys are Long).
 
Freemarker's map[key] only supports string keys. So I have tried map?api.get(0) but that behaves like the value is not there. Yet if I do
 
<#list statsForThisBox as projID, val>
Project #${projID?c} has value: <b>${val???c}</b>
</#list>
 
Then I see that the entries are there.
 
Project #64256 has value: true Project #0 has value: true
 
Is there a way to query a Map for a Long key? (Other than creating a special function in Java.)
 
Edit: I am thinking of something like
 
map?api.get("java.util.Long"?new(123))

原文：https://stackoverflow.com/questions/46574081