Why not output JSP page c label but output variable name???????-CodePudding

The content is the background variables over

<% @ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" % & gt;
<% @ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="FMT" % & gt;
<% @ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" % & gt;
<% @ the include file="../../basePath. JSP "% & gt;
Page output for: ${content_var}
Please give directions

CodePudding user response:

Not clear version? I specifically looked at TLD also define ah

 & lt; Tag> 
 
Like & amp; lt; %=... & gt; , but for expressions. 
 
 Out 
 Org, apache taglibs. The standard. The tag. Rt. Core. OutTag 
<body - content> JSP 
 
 
Expression to be evaluated. 
 
 Value 
 True 
 True//support el 
 
 
 
The Default value if the resulting value is null. 
 
 Default 
 False 
 True 
 
 
 
Determines been characters & amp; lt; , & amp; gt; , & amp; amp; , ', "in the 
The resulting string should be converted to their 
Corresponding character entity codes. The Default value is 
True. 
 
 EscapeXml 
 False 
 True

But if you want to output also don't have to out direct ${content_var}

CodePudding user response:

Long time no use JSP, but literally
Var is a variable name, the value is the value, so try,

CodePudding user response:

Long time no use JSP, but literally
Var is a variable name, the value is the value, so try,

So,,,,,,,,,,,,,,,,,,

CodePudding user response:

Check the content have no value? So why not just output and define a variable?

CodePudding user response:

Without direct output to introduce variable because to split the content of the content, traverse, judgment, branch output

CodePudding user response:

{{a}} & lt;/p> The output is empty,

The ${a} & lt;/p> Output ${a},

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