A JSP expression is used to insert the value of a scripting language expression, converted into a string, into the data stream returned to the client using response object.
The syntax for an expression is as follows:
<%= scripting-language-expression %>
Example of JSP expression Tag :
On index.jsp, user enters name that send as request to user.jsp which prints username as output.
index.jsp
user.jsp
The syntax for an expression is as follows:
<%= scripting-language-expression %>
Example of JSP expression Tag :
On index.jsp, user enters name that send as request to user.jsp which prints username as output.
index.jsp
<html>
<body>
<form action="user.jsp">
<input type="text" name="username">
<input type="submit" value="Submit"><br/>
</form>
</body>
</html>
user.jsp
<html>
<body>
<% ="Welcome! "+ request.getParameter("username") %>
</body>
</html>
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