Servlets or JSP?

[Buli]

Hello,

I'm creating a small web application using Servlets and I wonder is it necessary to use JSP pages. I've read a little about it and I think I can use it, but it's easier for me to use Servlets and PrintWriter - I have some experience with it. Is something wrong in using only Servlets without JSP? Should I connect these two technologies together somehow?

[Tolls]

It gets pretty messy using PrintWriter for outputting your HTML.
JSPs are a lot neater for that, which is why they were created.

Just don't mix code into the JSP...but then you are learning in the correct (IMO) order, so hopefully you won't.
Do all the work of getting any data together that needs to be displayed by the JSP, then simply forward there and use the JSTL tags (or whatever other framework you may be using) to display that data.

[gowthamgutha]

JSP in fact internally uses Servlet code, it dynamically generates Servlet classes having the code that you've written in JSP. JSP is much easier to learn and even you need not restart Tomcat, when you do work with JSP files (modify the code in them).

But JSP is quite slow when compared to that of Servlets, as said earlier, JSP container has to generate servlet classes which takes time, i can say better use Servlets if it is small. They have got really good features.

[Tolls]

Again with the guesswork.

Servlets are for doing the processing and calling the business logic.
JSPs are for displaying the results.
That's all there is to it.

[wright536]

You can use the Servlet to do things that the Jsp does.I don't know whether you understand the MVC model.
v---view(jsp,html) ,c---controller(Servlet) ,m--model(dao,hibernate...).In a word,the Jsp can better display the data.