//d

// dpackage servlet;import java.io.IOException;import java.io.PrintWriter;import java.util.ArrayList;import javax.servlet.RequestDispatcher;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import dao.StudentDao;public class QueryServlet extends HttpServlet {/** * Constructor of the object. */public QueryServlet() {super();}/** * Destruction of the servlet. <br> */public void destroy() {super.destroy(); // Just puts "destroy" string in log// Put your code here}/** * The doPost method of the servlet. <br> * * This method is called when a form has its tag value method equals to post. *  * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {String sname=request.getParameter("sname");try{sname=new String(sname.getBytes("ISO-8859-1"));}catch(Exception ex){ex.printStackTrace();}//Data access object daoStudentDao studentDao = new StudentDao();ArrayList stus = studentDao.queryStuByName(sname);request.setAttribute("stus", stus);//ԃsessionӠࠉìԃrequestһŜԃredirct׽ʽ͸תìȒՋʱΪ՝̬˽ߝԃrequestޏʡ؊Դ//jump to jspServletContext application = this.getServletContext();RequestDispatcher rd = application.getRequestDispatcher("/queryResult.jsp");rd.forward(request, response);}/** * Initialization of the servlet. <br> * * @throws ServletException if an error occurs */public void init() throws ServletException {// Put your code here}}// - - d