el - What does it mean by ${ } dollor and brackets in jsp? -

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i saw in jsp file, guessed brought in. come from? db? source of jsp file? or scripts?

the ${} symbol java expression language

you can check documentation @ oracle

quote oracle :

el can :

  • dynamically read application data stored in javabeans components, various data structures, , implicit objects

  • dynamically write data, such user input forms, javabeans components

  • invoke arbitrary static , public methods

  • dynamically perform arithmetic operations


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