Iterating through map and checking if key is present in another map

I'm iterating through my map:

I put my map in the controller model attribute like:

model.addAttribute("myMap", realMapObject);

JSP Code:

<c:forEach items="${myMap}" var="entry">

..... works perfectly iteration itself

.....

And I need to check if myMap entry key is present in another map (anotherMap). I tried this :

model.addAttribute("anotherMap", realMapObjectAnotherMap);

JSP Code:

<c:forEach items="${myMap}" var="entry">

    .....

    .....works perfectly 

 <c:choose>

 <c:when test="${not empty ${anotherMap['${entry.key}']}}">

        <h2>${entry.key} - YES</h2>

 </c:when>



 <c:otherwise>

        <h2>${entry.key} - NOT</h2>

 </c:otherwise>

 </c:choose>

I'm getting this error:

contains invalid expression(s): javax.el.ELException: Error Parsing:

edited Nov 13 '18 at 2:07

Cœur

17.7k9106145

asked Oct 23 '12 at 16:27

Gandalf StormCrow

9,53158143231

add a comment |

I'm iterating through my map:

I put my map in the controller model attribute like:

model.addAttribute("myMap", realMapObject);

JSP Code:

<c:forEach items="${myMap}" var="entry">

..... works perfectly iteration itself

.....

And I need to check if myMap entry key is present in another map (anotherMap). I tried this :

model.addAttribute("anotherMap", realMapObjectAnotherMap);

JSP Code:

<c:forEach items="${myMap}" var="entry">

    .....

    .....works perfectly 

 <c:choose>

 <c:when test="${not empty ${anotherMap['${entry.key}']}}">

        <h2>${entry.key} - YES</h2>

 </c:when>



 <c:otherwise>

        <h2>${entry.key} - NOT</h2>

 </c:otherwise>

 </c:choose>

I'm getting this error:

contains invalid expression(s): javax.el.ELException: Error Parsing:

edited Nov 13 '18 at 2:07

Cœur

17.7k9106145

asked Oct 23 '12 at 16:27

Gandalf StormCrow

9,53158143231

add a comment |

I'm iterating through my map:

I put my map in the controller model attribute like:

model.addAttribute("myMap", realMapObject);

JSP Code:

<c:forEach items="${myMap}" var="entry">

..... works perfectly iteration itself

.....

And I need to check if myMap entry key is present in another map (anotherMap). I tried this :

model.addAttribute("anotherMap", realMapObjectAnotherMap);

JSP Code:

<c:forEach items="${myMap}" var="entry">

    .....

    .....works perfectly 

 <c:choose>

 <c:when test="${not empty ${anotherMap['${entry.key}']}}">

        <h2>${entry.key} - YES</h2>

 </c:when>



 <c:otherwise>

        <h2>${entry.key} - NOT</h2>

 </c:otherwise>

 </c:choose>

I'm getting this error:

contains invalid expression(s): javax.el.ELException: Error Parsing:

edited Nov 13 '18 at 2:07

Cœur

17.7k9106145

asked Oct 23 '12 at 16:27

Gandalf StormCrow

9,53158143231

I'm iterating through my map:

I put my map in the controller model attribute like:

model.addAttribute("myMap", realMapObject);

JSP Code:

<c:forEach items="${myMap}" var="entry">

..... works perfectly iteration itself

.....

And I need to check if myMap entry key is present in another map (anotherMap). I tried this :

model.addAttribute("anotherMap", realMapObjectAnotherMap);

JSP Code:

<c:forEach items="${myMap}" var="entry">

    .....

    .....works perfectly 

 <c:choose>

 <c:when test="${not empty ${anotherMap['${entry.key}']}}">

        <h2>${entry.key} - YES</h2>

 </c:when>



 <c:otherwise>

        <h2>${entry.key} - NOT</h2>

 </c:otherwise>

 </c:choose>

I'm getting this error:

contains invalid expression(s): javax.el.ELException: Error Parsing:

java jsp el

edited Nov 13 '18 at 2:07

Cœur

17.7k9106145

asked Oct 23 '12 at 16:27

Gandalf StormCrow

9,53158143231

edited Nov 13 '18 at 2:07

Cœur

17.7k9106145

asked Oct 23 '12 at 16:27

Gandalf StormCrow

9,53158143231

edited Nov 13 '18 at 2:07

Cœur

17.7k9106145

edited Nov 13 '18 at 2:07

Cœur

17.7k9106145

edited Nov 13 '18 at 2:07

Cœur

17.7k9106145

asked Oct 23 '12 at 16:27

Gandalf StormCrow

9,53158143231

asked Oct 23 '12 at 16:27

Gandalf StormCrow

9,53158143231

asked Oct 23 '12 at 16:27

Gandalf StormCrow

9,53158143231

add a comment |

1 Answer
1

active

oldest

votes

You can't nest EL expressions like ${ ${ } }. You need to do it in the same single EL expression.

<c:when test="${not empty anotherMap[entry.key]}">

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

You can't nest EL expressions like ${ ${ } }. You need to do it in the same single EL expression.

<c:when test="${not empty anotherMap[entry.key]}">

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