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Spring Expression Language (SPEL) Tutorial

SpEL is an exression language supporting the features of querying and manipulating an object graph at runtime.

There are many expression languages available such as JSP EL, OGNL, MVEL and JBoss EL. SpEL provides some additional features such as method invocation and string templating functionality.

SpEL API

The SpEL API provides many interfaces and classes. They are as follows:

  • Expression interface
  • SpelExpression class
  • ExpressionParser interface
  • SpelExpressionParser class
  • EvaluationContext interface
  • StandardEvaluationContext class

Hello SPEL Example

Other SPEL Example

Let's see a lot of useful examples of SPEL. Here, we are assuming all the examples have been written inside the main() method.

Using concat() method with String

Converting String into byte array

Getting length after converting string into bytes

Converting String contents into uppercase letter

Next TopicOperators In Spel




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