java web 电子书店系统

package org.javaee.severlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.javaee.dao.OrderOperation; public class ProcessOrder extends HttpServlet { public ProcessOrder() { super(); } /** * Destruction of the servlet. <br> */ public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } /** * The doGet method of the servlet. <br> * * This method is called when a form has its tag value method equals to get. * * @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 doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request,response); /** * 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 { //设置中文响应编码 response.setContentType("text/html;charset=gbk"); //获取session对象 HttpSession session=request.getSession(); //获取order.jsp页面中的用户输入数据信息 String username=request.getParameter("username"); String zipcode=request.getParameter("zipcode"); String phone=request.getParameter("phone"); String creditcard=request.getParameter("creditcard"); // 计算价钱 Object total=session.getAttribute("total"); double zje=0; if(total!=null){ zje=((Double)total).doubleValue(); } //进行数据库操作时，需要保存订单信息，因此调用订单业务类实例中的方法，实现数据库操作 //根据操作结果进行页面转向 OrderOperation op=new OrderOperation(); int i=op.saveOrder(username, zipcode, phone, creditcard, zje); if(i>0){ response.sendRedirect("../jsp/success.jsp"); session.invalidate(); }else{ response.sendRedirect("../jsp/order.jsp"); } } /** * Initialization of the servlet. <br> * * @throws ServletException if an error occurs */ public void init() throws ServletException { // Put your code here } }