Need help with servlets!!!

Question

Hi, I'm a beginner in Oracle and Servlets. So far I was able to make a servlet which could run a query to an existing table of an oracle database and return this data in an HTML form generated by that same servlet.
I need some help on making a servlet that can accept user input and make an insert into that same existing table.
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Answer 1

I suggest you break up the problem into manageable sub projects and solve each one in isolation. First, create a 'hello world' servlet. Search google for examples. Here is one problem with your code: if WelcomeServlet3 is in a package called 'myServlets, then you would use something like this: <servlet-class>myServlets.WelcomeServlet3<;/servlet-class> in the web.xml file.
Next, is your database connection: I suggest you create a database connection in a class with a 'public static void main(String[] args) method to call it. Have the configuration data within the class. Dont get it from an xml file. This way, you can run it stand-alone by right clicking on the class and choosing 'run as application' and therefore ensure it works.
Next go to the tomcat home page and read up on how to configure a database in tomcat by putting the configuration data in an xml file. Make sure you're reading the about the version of tomcat you're using. For all versions of tomcat, its something like this: If your web application is called 'myWebProject', then there should be an configuration xml file called 'myWebProject.xml' that goes under one of the tomcat sub folders. You use JNI to get the configuration data out of that xml file to configure the database. There is no database configuration data in the web.xml file.