In JSP, java code can be
written inside the jsp page using the scriptlet tag. Let's see what are the
scripting elements first.
JSP Scripting elements
The scripting elements provides the ability to insert java code
inside the jsp. There are three types of scripting elements:
- scriptlet tag
- expression tag
- declaration tag
JSP scriptlet tag
A scriptlet tag is used to execute java source code in JSP
Syntax:
<% java source code %>
Example of JSP scriptlet tag
In this example, we are displaying a welcome message.
<html>
<body>
<% out.print("welcome to jsp"); %>
</body>
</html>
Example of JSP
scriptlet tag
In this example, we have created two files index.html and
welcome.jsp. The index.html file gets the username from the user and the
welcome.jsp file prints the username with the welcome message.
index.html
<html>
<body>
<form action="welcome.jsp">
<input type="text" name="uname">
<input type="submit" value="go"><br/>
</form>
</body>
</html>
welcome.jsp
<html>
<body>
<%
String name=request.getParameter("uname");
out.print("welcome "+name);
%>
</form>
</body>
</html>
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