我的行动类别有2个变量:id1和id2。 采用了<代码>_,将其重新用作地图钥匙。
我无法利用这一代码检索地图价值:
<s:property value="%{mymap[id1_id2]}" />
我应如何收回地图价值?
在OGNL中,id1_id2的表述将假定存在一个名为id1_id2的变量,因为它具有一个完全的法律识别特征。
如果你想减轻创伤,你需要:
<s:property value="%{mymap[id1 + _ + id2]}" />
我可能会产生一个单独的变量,作为关键用途:
<s:set var="mapKey" value="%{id1 + _ + id2}" />
<s:property value="%{mymap[#mapKey]}" />
或者更可能的话,我就这样说了,除了观察层之外。
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