Accessing Multikey Map in Struts2

Question

Does Struts2 support Multikey Map?

If so, can I access it like,

<s:property value="multiKeuMap[#k1][#k2][#k3]">

Thanks

Commons' MultiMap allows multiple values under the same key, which is different than a map with multiple keys. — Dave Newton, May 12 '12 at 12:48
Thanks for the comments guys.. Struts2 has no support for Commons MultiMap. I had figured out an alternative way. — Rajkumar Palani, Jun 05 '12 at 05:29

score 0 · Answer 1 · answered Sep 05 '12 at 11:36

Below code snippet retrieving value from multi key map using two keys. (using ognl expression).

    MultiKeyMap keyMap = new MultiKeyMap();//MultiKeyMap Creation
    keyMap.put("1","2","OneTwo");//storing value
    OgnlContext context = new OgnlContext();// Ognl Context
    context.put("vap", keyMap);
    Object expression = Ognl.parseExpression("vap.get(\"1\",\"2\")");// Ognl expression //to retrive value from multikeyMap
    System.out.println(Ognl.getValue(expression, context));//Printing value.

Can you try this expression for your requirement "multiKeuMap.get(\"k1\",\"k2\")"

In Jsp page can you try with this expression "multiKeuMap.get('k1','k2')"

score 0 · Accepted Answer · answered Dec 04 '12 at 18:37

0

Struts OGNL supports Java collections and doesn't have support for MultiKeyMap.

Apache Struts documentation says that it supports Maps,Lists and Sets.

http://struts.apache.org/2.0.11.2/docs/ognl.html

answered Dec 04 '12 at 18:37

Rajkumar Palani

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Accessing Multikey Map in Struts2

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