프로그래머/JAVA
[JSP] scriptlet, expression, EL(Expression Language) Tag
얼짱가면
2013. 3. 26. 13:14
JSP scriptlet :
<% out.print(4+5); %>
JSP expression :
<%= 4+5 %>
EL(Expression Language) Tag :
${4+5}
[EL 사용 (예)]
|
Basic Arithmetic |
Numeric |
Alphabetic | |||
|
EL Expression |
Result |
EL Expression |
Result |
EL Expression |
Result |
|
${1} |
1 |
${1 < 2} |
true |
${'a' < 'b'} |
true |
|
${1 + 2} |
3 |
${1 lt 2} |
true |
${'hip' > 'hit'} |
false |
|
${1.2 + 2.3} |
3.5 |
${1 > (4/2)} |
false |
${'4' > 3} |
true |
|
${1.2E4 + 1.4} |
12001.4 |
${1 gt (4/2)} |
false |
|
|
|
${-4 - 2} |
-6 |
${4.0 >= 3} |
true |
|
|
|
${21 * 2} |
42 |
${4.0 ge 3} |
true |
|
|
|
${3/4} |
0.75 |
${4 <= 3} |
false |
|
|
|
${3 div 4} |
0.75 |
${4 le 3} |
false |
|
|
|
${3/0} |
Infinity |
${100.0 == 100} |
true |
|
|
|
${10%4} |
2 |
${100.0 eq 100} |
true |
|
|
|
${10 mod 4} |
2 |
${(10*10) != 100} |
false |
|
|
|
${(2==2) ? 3 : 4} |
3 |
${(10*10) ne 100} |
false |
|
|