javabean+servlet+mysql的一个书城项目

package cn.itcast.goods.order.web.servlet; import java.io.IOException; import java.math.BigDecimal; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Properties; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import cn.itcast.commons.CommonUtils; import cn.itcast.goods.cart.domain.CartItem; import cn.itcast.goods.cart.service.CartItemService; import cn.itcast.goods.order.domain.Order; import cn.itcast.goods.order.domain.OrderItem; import cn.itcast.goods.order.service.OrderService; import cn.itcast.goods.pager.PageBean; import cn.itcast.goods.user.domain.User; import cn.itcast.servlet.BaseServlet; public class OrderServlet extends BaseServlet { private OrderService orderService = new OrderService(); private CartItemService cartItemService = new CartItemService(); /** * 获取当前页码 * @param req * @return */ private int getPc(HttpServletRequest req) { int pc = 1; String param = req.getParameter("pc"); if(param != null && !param.trim().isEmpty()) { try { pc = Integer.parseInt(param); } catch(RuntimeException e) {} } return pc; } /** * 截取url，页面中的分页导航中需要使用它做为超链接的目标！ * @param req * @return */ /* * http://localhost:8080/goods/BookServlet?methed=findByCategory&cid=xxx&pc=3 * /goods/BookServlet + methed=findByCategory&cid=xxx&pc=3 */ private String getUrl(HttpServletRequest req) { String url = req.getRequestURI() + "?" + req.getQueryString(); /* * 如果url中存在pc参数，截取掉，如果不存在那就不用截取。 */ int index = url.lastIndexOf("&pc="); if(index != -1) { url = url.substring(0, index); } return url; } /** * 支付准备 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String paymentPre(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.setAttribute("order", orderService.load(req.getParameter("oid"))); return "f:/jsps/order/pay.jsp"; } /** * 支付方法 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String payment(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { Properties props = new Properties(); props.load(this.getClass().getClassLoader().getResourceAsStream("payment.properties")); /* * 1. 准备13个参数 */ String p0_Cmd = "Buy";//业务类型，固定值Buy String p1_MerId = props.getProperty("p1_MerId");//商号编码，在易宝的唯一标识 String p2_Order = req.getParameter("oid");//订单编码 String p3_Amt = "0.01";//支付金额 String p4_Cur = "CNY";//交易币种，固定值CNY String p5_Pid = "";//商品名称 String p6_Pcat = "";//商品种类 String p7_Pdesc = "";//商品描述 String p8_Url = props.getProperty("p8_Url");//在支付成功后，易宝会访问这个地址。 String p9_SAF = "";//送货地址 String pa_MP = "";//扩展信息 String pd_FrpId = req.getParameter("yh");//支付通道 String pr_NeedResponse = "1";//应答机制，固定值1 /* * 2. 计算hmac * 需要13个参数 * 需要keyValue * 需要加密算法 */ String keyValue = props.getProperty("keyValue"); String hmac = PaymentUtil.buildHmac(p0_Cmd, p1_MerId, p2_Order, p3_Amt, p4_Cur, p5_Pid, p6_Pcat, p7_Pdesc, p8_Url, p9_SAF, pa_MP, pd_FrpId, pr_NeedResponse, keyValue); /* * 3. 重定向到易宝的支付网关 */ StringBuilder sb = new StringBuilder("https://www.yeepay.com/app-merchant-proxy/node"); sb.append("?").append("p0_Cmd=").append(p0_Cmd); sb.append("&").append("p1_MerId=").append(p1_MerId); sb.append("&").append("p2_Order=").append(p2_Order); sb.append("&").append("p3_Amt=").append(p3_Amt); sb.append("&").append("p4_Cur=").append(p4_Cur); sb.append("&").append("p5_Pid=").append(p5_Pid); sb.append("&").append("p6_Pcat=").append(p6_Pcat); sb.append("&").append("p7_Pdesc=").append(p7_Pdesc); sb.append("&").append("p8_Url=").append(p8_Url); sb.append("&").append("p9_SAF=").append(p9_SAF); sb.append("&").append("pa_MP=").append(pa_MP); sb.append("&").append("pd_FrpId=").append(pd_FrpId); sb.append("&").append("pr_NeedResponse=").append(pr_NeedResponse); sb.append("&").append("hmac=").append(hmac); resp.sendRedirect(sb.toString()); return null; } /** * 回馈方法 * 当支付成功时，易宝会访问这里 * 用两种方法访问： * 1. 引导用户的浏览器重定向(如果用户关闭了浏览器，就不能访问这里了) * 2. 易宝的服务器会使用点对点通讯的方法访问这个方法。（必须回馈success，不然易宝服务器会一直调用这个方法） * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String back(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { /* * 1. 获取12个参数 */ String p1_MerId = req.getParameter("p1_MerId"); String r0_Cmd = req.getParameter("r0_Cmd"); String r1_Code = req.getParameter("r1_Code"); String r2_TrxId = req.getParameter("r2_TrxId"); String r3_Amt = req.getParameter("r3_Amt"); String r4_Cur = req.getParameter("r4_Cur"); String r5_Pid = req.getParameter("r5_Pid"); String r6_Order = req.getParameter("r6_Order"); String r7_Uid = req.getParameter("r7_Uid"); String r8_MP = req.getParameter("r8_MP"); String r9_BType = req.getParameter("r9_BType"); String hmac = req.getParameter("hmac"); /* * 2. 获取keyValue */ Properties props = new Properties(); props.load(this.getClass().getClassLoader().getResourceAsStream("payment.properties")); String keyValue = props.getProperty("keyValue"); /* * 3. 调用PaymentUtil的校验方法来校验调用者的身份 * >如果校验失败：保存错误信息，转发到msg.jsp * >如果校验通过： * * 判断访问的方法是重定向还是点对点，如果要是重定向 * 修改订单状态，保存成功信息，转发到msg.jsp * * 如果是点对点：修改订单状态，返回success */ boolean bool = PaymentUtil.verifyCallback(hmac, p1_MerId, r0_Cmd, r1_Code, r2_TrxId, r3_Amt, r4_Cur, r5_Pid, r6_Order, r7_Uid, r8_MP, r9_BType, keyValue); if(!bool) { req.setAttribute("code", "error"); req.setAttribute("msg", "无效的签名，支付失败！（你不是好人）"); return "f:/jsps/msg.jsp"; } if(r1_Code.equals("1")) { orderService.updateStatus(r6_Order, 2); if(r9_BType.equals("1")) { req.setAttribute("code", "success"); req.setAttribute("msg", "恭喜，支付成功！"); return "f:/jsps/msg.jsp"; } else if(r9_BType.equals("2")) { resp.getWriter().print("success"); } } return null; } /** * 取消订单 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String cancel(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String oid = req.getParameter("oid"); /* * 校验订单状态 */ int status = orderService.findStatus(oid); if(status != 1) { req.setAttribute("code", "error"); req.setAttribute("msg", "状态不对，不能取消！"); return "f:/jsps/msg.jsp"; } orderService.updateStatus(oid, 5);//设置状态为取消！ req.setAttribute("code", "success"); req.setAttribute("msg", "您的订单已取消，您不后悔吗！"); return "f:/jsps/msg.jsp"; } /** * 确认收货 * @param req * @param res