Dinesh on Java

Categories: JSTL

JSTL Core <c:out> Tag

JSTL out tag is used to display information on JSP. It can also be used with properties of the bean.

The <c:out> tag displays the result of an expression, similar to the way <%= %> works with a difference that <c:out> tag lets you use the simpler “.” notation to access properties.

For example, to access employee.salary just use tag is <c:out value=”employee.salary”/>.

JSTL <c:out> tag Example:
To display the salary of the employee on JSP, you can use the <c:out> tag like:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>JSTL c out Tag example</title>
</head>
<body>
  <c:out value="${employee.salary}" default="Not Available" escapeXml="true"></c:out>
</body>
</html>

The above statement assumes that employee object is available on this JSP and that employee bean has a property salary with setters and getter.

Attributes of <c:out> tag are:

Required Attributes:

1. value: This attribute needs expression to be evaluated.

Optional Attributes:

1. default: This attribute provides default value if the resulting value is null.
2. escapeXml: This attribute determines whether characters &,’,” in the resulting string should be converted to their corresponding character entity codes. Default value is set to true.

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Dinesh Rajput

Dinesh Rajput is the chief editor of a website Dineshonjava, a technical blog dedicated to the Spring and Java technologies. It has a series of articles related to Java technologies. Dinesh has been a Spring enthusiast since 2008 and is a Pivotal Certified Spring Professional, an author of a book Spring 5 Design Pattern, and a blogger. He has more than 10 years of experience with different aspects of Spring and Java design and development. His core expertise lies in the latest version of Spring Framework, Spring Boot, Spring Security, creating REST APIs, Microservice Architecture, Reactive Pattern, Spring AOP, Design Patterns, Struts, Hibernate, Web Services, Spring Batch, Cassandra, MongoDB, and Web Application Design and Architecture. He is currently working as a technology manager at a leading product and web development company. He worked as a developer and tech lead at the Bennett, Coleman & Co. Ltd and was the first developer in his previous company, Paytm. Dinesh is passionate about the latest Java technologies and loves to write technical blogs related to it. He is a very active member of the Java and Spring community on different forums. When it comes to the Spring Framework and Java, Dinesh tops the list!