el « Map « JSP-Servlet Q&A

1. Using a variable to access a Map in JSP EL    stackoverflow.com

I would like to use a JSP variable to access the elements of a Map in JSP, but I can't make it work. Here is what I tried:

<p>1. ${backups["2011-06-09_web05"]}</p>
<p>2. <c:set var="key" ...

2. java.util.Map.contains() method call in JSP    stackoverflow.com

Is there a way to call java.util.Map.contains() method in JSP where the Map is a property of a bean.

3. JSP EL and Enums as map keys    stackoverflow.com

I had the great idea of using a map with an enum I defined as a key and a Boolean as a value. Unfortunately I've problems in JSP EL to access ...

4. EL concatenation -> ${map[ ?+? ]}    coderanch.com

5. Accessing value in MAP using EL    coderanch.com

Hi All, I have some queries regarding EL when values is being accessed using Map.. For expression ${colorMap[red]} then method invoked is colorMap.get(pageContext.findAttribute("red")) and for ${colorMap["red"]} method invoked is colorMap.get("red"). You access a map's values through its keys, which you can specify with the [] operator, for example, ${colorMap[red]} and ${colorMap["red"]}. The former specifies an IDENTIFIER for the key, whereas the ...

6. EL param map clarification    coderanch.com

7. EL accessing a java Map    coderanch.com

8. Getting map values using EL in JSP    coderanch.com