actually it four pages document . the first one is login page and after giving the information to this page ,the next jsp page verify the user is authorised user or not , if it is authorised then show the next link of his or her deparment detail then this department jsp is also connect to their employee jsp page and show their detail,but whenever i give the information the first jsp page show an exception .please help how make a database connection through jsp in oracle 8i with detail of each step .