EJB (Im Fresher)

What is the DIfference between Servlets and JspThey use the same underlying technology. JSP was added to servlets to make it easier for non-Java web page writers to write web pages in a Java environment.
Before JSP, to write a web page you had to write a servlet with lots of text printing statements to output the HTML. With JSP, you write a HTML page and control the data display by inserting special JSP tags that call Java code behind the scenes (you can also directly include Java code as 'scriptlets', but this is no longer considered good practice). When you deploy a JSP page on the server, the server's JSP engine actually compiles it into a servlet, saving you all the hassle.

This means, in principle, you don't need to know Java to write a dynamic Java server web page. It was originally intended for large coding shops where the roles are distinct, i.e. Java the developers are not HTML savvy, and there are non-Java web page designers.

In practice, JSP makes it simple to quickly write dynamic web pages, and servlets are now used for non-HTML intensive application areas (i.e. where Java code dominates).

JSP frameworks like Apache's Struts (http://jakarta.apache.org/struts/) make life even easier by providing an application skeleton and a bunch of useful JSP custom tags.

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