一、流程分析
二、代码
1.view层
(1)list.jsp
1 <body> 2 <p class="pLink"> 3 <a href="<c:url value='/admin/AdminOrderServlet?method=findByStatus&status=1'/>">未付款</a> | 4 <a href="<c:url value='/admin/AdminOrderServlet?method=findByStatus&status=2'/>">已付款</a> | 5 <a href="<c:url value='/admin/AdminOrderServlet?method=findByStatus&status=3'/>">已发货</a> | 6 <a href="<c:url value='/admin/AdminOrderServlet?method=findByStatus&status=4'/>">交易成功</a> | 7 <a href="<c:url value='/admin/AdminOrderServlet?method=findByStatus&status=5'/>">已取消</a> 8 </p> 9 <div class="divMain"> 10 <div class="title"> 11 <div style="margin-top:7px;"> 12 <span style="margin-left: 150px;margin-right: 280px;">商品信息</span> 13 <span style="margin-left: 40px;margin-right: 100px;">金额</span> 14 <span style="margin-left: 50px;margin-right: 53px;">订单状态</span> 15 <span style="margin-left: 100px;">操作</span> 16 </div> 17 </div> 18 <br/> 19 <table align="center" border="0" width="100%" cellpadding="0" cellspacing="0"> 20 21 22 23 <c:forEach items="${pb.beanList}" var="order"> 24 25 <tr class="tt"> 26 <td width="320px">订单号：<a href="<c:url value='/admin/AdminOrderServlet?method=load&oid=${order.oid }'/>">${order.oid }</a></td> 27 <td width="200px">下单时间：${order.orderTime }</td> 28 <td width="178px"> </td> 29 <td width="205px"> </td> 30 <td> </td> 31 </tr> 32 <tr style="padding-top: 10px; padding-bottom: 10px;"> 33 <td colspan="2"> 34 <c:forEach items="${order.orderItems }" var="item"> 35 <img border="0" width="70" src="<c:url value='/${item.book.image_b }'/>"/> 36 </c:forEach> 37 </td> 38 <td style="padding-left: 0"> 39 <span class="price_t">¥${order.total }</span> 40 </td> 41 <td> 42 <c:choose> 43 <c:when test="${order.status eq 1 }">(等待付款)</c:when> 44 <c:when test="${order.status eq 2 }">(准备发货)</c:when> 45 <c:when test="${order.status eq 3 }">(等待确认)</c:when> 46 <c:when test="${order.status eq 4 }">(交易成功)</c:when> 47 <c:when test="${order.status eq 5 }">(已取消)</c:when> 48 </c:choose> 49 </td> 50 <td> 51 <a href="<c:url value='/admin/AdminOrderServlet?method=load&oid=${order.oid }'/>">查看</a><br/> 52 <c:if test="${order.status eq 1 }"> 53 <a href="<c:url value='/admin/AdminOrderServlet?method=load&oid=${order.oid }&btn=cancel'/>">取消</a><br/> 54 </c:if> 55 <c:if test="${order.status eq 2 }"> 56 <a href="<c:url value='/admin/AdminOrderServlet?method=load&oid=${order.oid }&btn=deliver'/>">发货</a><br/> 57 </c:if> 58 </td> 59 </tr> 60 61 </c:forEach> 62 63 64 65 66 67 </table> 68 <br/> 69 <%@include file="/jsps/pager/pager.jsp" %> 70 </div> 71 </body> 72 </html>
(2)desc.jsp
1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> 2 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 3 <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %> 4 5 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 6 <html> 7 <head> 8 <title>订单详细</title> 9 10 <meta http-equiv="pragma" content="no-cache"> 11 <meta http-equiv="cache-control" content="no-cache"> 12 <meta http-equiv="expires" content="0"> 13 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 14 <meta http-equiv="description" content="This is my page"> 15 <meta http-equiv="content-type" content="text/html;charset=utf-8"> 16 <!-- 17 <link rel="stylesheet" type="text/css" href="styles.css"> 18 --> 19 <link rel="stylesheet" type="text/css" href="<c:url value='/adminjsps/admin/css/order/desc.css'/>"> 20 </head> 21 22 <body> 23 <div class="divOrder"> 24 <span>订单号：${oder.oid } 25 <c:choose> 26 <c:when test="${order.status eq 1 }">(等待付款)</c:when> 27 <c:when test="${order.status eq 2 }">(准备发货)</c:when> 28 <c:when test="${order.status eq 3 }">(等待确认)</c:when> 29 <c:when test="${order.status eq 4 }">(交易成功)</c:when> 30 <c:when test="${order.status eq 5 }">(已取消)</c:when> 31 </c:choose> 32 下单时间：${order.orderTime } 33 </span> 34 </div> 35 <div class="divRow"> 36 <div class="divContent"> 37 <dl> 38 <dt>收货人信息</dt> 39 <dd>${order.address }</dd> 40 </dl> 41 </div> 42 <div class="divContent"> 43 <dl> 44 <dt>商品清单</dt> 45 <dd> 46 <table cellpadding="0" cellspacing="0"> 47 <tr> 48 <th class="tt">商品名称</th> 49 <th class="tt" align="left">单价</th> 50 <th class="tt" align="left">数量</th> 51 <th class="tt" align="left">小计</th> 52 </tr> 53 54 55 56 <c:forEach items="${order.orderItems }" var="item"> 57 58 <tr style="padding-top: 20px; padding-bottom: 20px;"> 59 <td class="td" width="400px"> 60 <div class="bookname"> 61 <img align="middle" width="70" src="<c:url value='/${item.book.image_b }'/>"/> 62 ${item.book.bname } 63 </div> 64 </td> 65 <td class="td" > 66 <span>¥${item.book.currPrice }</span> 67 </td> 68 <td class="td"> 69 <span>${item.quantity }</span> 70 </td> 71 <td class="td"> 72 <span>¥${item.subtotal }</span> 73 </td> 74 </tr> 75 76 </c:forEach> 77 78 79 </table> 80 </dd> 81 </dl> 82 </div> 83 <div class="divBtn"> 84 <span class="spanTotal">合 计：</span> 85 <span class="price_t">¥${order.total }</span><br/> 86 87 <c:if test="${order.status eq 2 and btn eq 'deliver' }"> 88 <a id="deliver" href="<c:url value='/admin/AdminOrderServlet?method=deliver&oid=${order.oid }'/>">发 货</a> 89 </c:if> 90 <c:if test="${order.status eq 1 and btn eq 'cancel' }"> 91 <a id="cancel" href="<c:url value='/admin/AdminOrderServlet?method=cancel&oid=${order.oid }'/>">取 消</a> 92 </c:if> 93 </div> 94 </div> 95 </body> 96 </html>
2.servlet层
(1)AdminOrderServlet.java
1 public class AdminOrderServlet extends BaseServlet { 2 private OrderService service = new OrderService(); 3 /** 4 * 获取当前请求的url 5 * @param req 6 * @return 7 */ 8 private String getUrl(HttpServletRequest req) { 9 String url = req.getRequestURI() + "?" + req.getQueryString(); 10 /* 11 * 如果url中存在pc参数，截取掉，如果不存在那就不用截取。 12 */ 13 int index = url.lastIndexOf("&pc="); 14 if(index != -1) { 15 url = url.substring(0, index); 16 } 17 return url; 18 } 19 20 /** 21 * 获取当前页 22 * @param req 23 * @return 24 */ 25 private int getPc(HttpServletRequest req) { 26 int pc = 1; 27 String param = req.getParameter("pc"); 28 if(param != null && !param.trim().isEmpty()) { 29 try { 30 pc = Integer.parseInt(param); 31 } catch (Exception e) { 32 e.printStackTrace(); 33 } 34 } 35 return pc; 36 } 37 38 /** 39 * 查询所有订单 40 * @param req 41 * @param resp 42 * @return 43 * @throws ServletException 44 * @throws IOException 45 */ 46 public String findAll(HttpServletRequest req, HttpServletResponse resp) 47 throws ServletException, IOException { 48 int pc = getPc(req); 49 PageBean<Order> pb = service.findAll(pc); 50 pb.setUrl(getUrl(req)); 51 req.setAttribute("pb", pb); 52 return "f:/adminjsps/admin/order/list.jsp"; 53 } 54 55 /** 56 * 查看订单详细信息 57 * @param req 58 * @param resp 59 * @return 60 * @throws ServletException 61 * @throws IOException 62 */ 63 public String load(HttpServletRequest req, HttpServletResponse resp) 64 throws ServletException, IOException { 65 String oid = req.getParameter("oid"); 66 Order order = service.load(oid); 67 req.setAttribute("order", order); 68 String btn = req.getParameter("btn");//btn说明了用户点击哪个超链接来访问本方法的 69 req.setAttribute("btn", btn); 70 return "/adminjsps/admin/order/desc.jsp"; 71 } 72 73 /** 74 * 取消订单 75 * @param req 76 * @param resp 77 * @return 78 * @throws ServletException 79 * @throws IOException 80 */ 81 public String cancel(HttpServletRequest req, HttpServletResponse resp) 82 throws ServletException, IOException { 83 String oid = req.getParameter("oid"); 84 /* 85 * 校验订单状态 86 */ 87 int status = service.findStatus(oid); 88 if(status != 1) { 89 req.setAttribute("code", "error"); 90 req.setAttribute("msg", "状态不对，不能取消！"); 91 return "f:/adminjsps/msg.jsp"; 92 } 93 service.updateStatus(oid, 5);//设置状态为取消！ 94 req.setAttribute("code", "success"); 95 req.setAttribute("msg", "您的订单已取消，您不后悔吗！"); 96 return "f:/adminjsps/msg.jsp"; 97 } 98 99 /** 100 * 发货功能 101 * @param req 102 * @param resp 103 * @return 104 * @throws ServletException 105 * @throws IOException 106 */ 107 public String deliver(HttpServletRequest req, HttpServletResponse resp) 108 throws ServletException, IOException { 109 String oid = req.getParameter("oid"); 110 /* 111 * 校验订单状态 112 */ 113 int status = service.findStatus(oid); 114 if(status != 2) { 115 req.setAttribute("code", "error"); 116 req.setAttribute("msg", "状态不对，不能发货！"); 117 return "f:/adminjsps/msg.jsp"; 118 } 119 service.updateStatus(oid, 3);//设置状态为取消！ 120 req.setAttribute("code", "success"); 121 req.setAttribute("msg", "您的订单已发货，请查看物流，马上确认吧！"); 122 return "f:/adminjsps/msg.jsp"; 123 } 124 125 /** 126 * 根据状态查询 127 * @param req 128 * @param resp 129 * @return 130 * @throws ServletException 131 * @throws IOException 132 */ 133 public String findByStatus(HttpServletRequest req, HttpServletResponse resp) 134 throws ServletException, IOException { 135 int pc = getPc(req); 136 String status = req.getParameter("status"); 137 PageBean<Order> pb = service.findByStatus(status, pc); 138 pb.setUrl(getUrl(req)); 139 req.setAttribute("pb", pb); 140 return "f:/adminjsps/admin/order/list.jsp"; 141 } 142 143 144 }
3.service层
(1)OrderService.java
1 public class OrderService { 2 private OrderDao dao = new OrderDao(); 3 4 /** 5 * 我的订单 6 * @param uid 7 * @param pc 8 * @return 9 */ 10 public PageBean<Order> myOrders(String uid, int pc) { 11 try { 12 JdbcUtils.beginTransaction(); 13 PageBean<Order> pb = dao.findByUser(uid, pc); 14 JdbcUtils.commitTransaction(); 15 return pb; 16 } catch (SQLException e) { 17 try { 18 JdbcUtils.rollbackTransaction(); 19 } catch (SQLException e1) { 20 e1.printStackTrace(); 21 } 22 throw new RuntimeException(e); 23 } 24 } 25 26 /** 27 * 生成订单 28 * @param order 29 */ 30 public void createOrder(Order order) { 31 try { 32 JdbcUtils.beginTransaction(); 33 dao.add(order); 34 JdbcUtils.commitTransaction(); 35 } catch (SQLException e) { 36 try { 37 JdbcUtils.rollbackTransaction(); 38 } catch (SQLException e1) { 39 e1.printStackTrace(); 40 } 41 e.printStackTrace(); 42 } 43 } 44 45 /** 46 * 根据id加载订单 47 * @param id 48 * @return 49 */ 50 public Order load(String id) { 51 try { 52 return dao.findById(id); 53 } catch (SQLException e) { 54 throw new RuntimeException(e); 55 } 56 } 57 58 /** 59 * 修改订单状态 60 * @param id 61 * @param status 62 */ 63 public void updateStatus(String id, int status) { 64 try { 65 dao.updateStatus(id, status); 66 } catch (SQLException e) { 67 throw new RuntimeException(e); 68 } 69 } 70 71 /** 72 * 查找订单状态 73 * @param id 74 * @return 75 */ 76 public int findStatus(String id) { 77 try { 78 return dao.findStatus(id); 79 } catch (SQLException e) { 80 throw new RuntimeException(e); 81 } 82 } 83 84 /** 85 * 查找所有订单 86 * @param pc 87 * @return 88 */ 89 public PageBean<Order> findAll(int pc) { 90 try { 91 return dao.findAll(pc); 92 } catch (SQLException e) { 93 throw new RuntimeException(e); 94 } 95 } 96 97 /** 98 * 根据状态查询 99 * @param status 100 * @param pc 101 * @return 102 */ 103 public PageBean<Order> findByStatus(String status, int pc) { 104 try { 105 return dao.findByStatus(status, pc); 106 } catch (SQLException e) { 107 throw new RuntimeException(e); 108 } 109 } 110 111 112 }
4.dao层
(1)OrderDao.java
1 public class OrderDao { 2 private QueryRunner qr = new TxQueryRunner(); 3 /** 4 * 按用户id查找 5 * @param uid 6 * @return 7 * @throws SQLException 8 */ 9 public PageBean<Order> findByUser(String uid, int pc) throws SQLException { 10 List<Expression> exprList = new ArrayList<Expression>(); 11 exprList.add(new Expression("uid", "=", uid)); 12 return findByCriteria(exprList, pc); 13 } 14 15 /** 16 * 按条件查找 17 * @param exprList 18 * @return 19 * @throws SQLException 20 */ 21 private PageBean<Order> findByCriteria(List<Expression> exprList, int pc) throws SQLException { 22 /* 23 * 1. 得到pageSize 24 * 2. 得到totalRecords 25 * 3. 得到beanList 26 * 4. 创建PageBean，返回 27 */ 28 // 1. 得到pageSize 29 int ps = PageConfig.ORDER_PAGE_SIZE; 30 31 // 2. 通过exprList来生成where子句 32 StringBuilder sb = new StringBuilder(" where 1=1"); 33 List<Object> params = new ArrayList<Object>(); 34 for(Expression expr : exprList) { 35 sb.append(" and ").append(expr.getName()).append(" ") 36 .append(expr.getOperator()).append(" "); 37 if(!expr.getOperator().equalsIgnoreCase("is null")) { 38 sb.append("?"); 39 params.add(expr.getValue()); 40 } 41 } 42 43 // 3. 总记录数 44 String sql = "select count(*) from t_order" + sb; 45 Number number = (Number)qr.query(sql, new ScalarHandler(), params.toArray()); 46 int tr = number.intValue(); 47 48 // 4. 得到beanList，即当前页记录 49 sql = "select * from t_order" + sb + " order by ordertime desc limit ?,?"; 50 params.add((pc - 1) * ps);//当前页首行记录的下标 51 params.add(ps); 52 53 List<Order> beanList = qr.query(sql, new BeanListHandler<Order>(Order.class), params.toArray()); 54 // 虽然已经获取所有的订单，但每个订单中并没有订单条目。 55 // 遍历每个订单，为其加载它的所有订单条目 56 for(Order order : beanList) { 57 loadOrderItem(order); 58 } 59 60 // 5. 创建PageBean，设置参数 61 PageBean<Order> pb = new PageBean<Order>(); 62 pb.setBeanList(beanList); 63 pb.setCurrentPage(pc); 64 pb.setPageSize(ps); 65 pb.setTotalRecords(tr); 66 return pb; 67 } 68 69 /* 70 * 为指定的order载它的所有OrderItem 71 */ 72 private void loadOrderItem(Order order) throws SQLException { 73 String sql = "select * from t_orderItem where oid=?";//t_orderItem已经包含book表的一些字段 74 List<Map<String,Object>> mapList = qr.query(sql, new MapListHandler(), order.getOid()); 75 List<OrderItem> orderItems = toOrderItemList(mapList); 76 order.setOrderItems(orderItems); 77 } 78 79 /** 80 * 把多个Map转换成多个OrderItem 81 * @param mapList 82 * @return 83 */ 84 private List<OrderItem> toOrderItemList(List<Map<String, Object>> mapList) { 85 List<OrderItem> items = new ArrayList<OrderItem>(); 86 OrderItem item = null; 87 for(Map<String,Object> map : mapList) { 88 item = toOrderItem(map); 89 items.add(item); 90 } 91 return items; 92 } 93 94 /* 95 * 把一个Map转换成一个OrderItem 96 */ 97 private OrderItem toOrderItem(Map map) { 98 OrderItem item = CommonUtils.toBean(map, OrderItem.class); 99 Book book = CommonUtils.toBean(map, Book.class); 100 item.setBook(book); 101 return item; 102 } 103 104 /** 105 * 生成订单 106 * @param order 107 * @throws SQLException 108 */ 109 public void add(Order order) throws SQLException { 110 /* 111 * 1. 插入订单 112 */ 113 String sql = "insert into t_order values (?,?,?,?,?,?)"; 114 Object [] params = {order.getOid(), order.getOrderTime(), order.getTotal(), order.getStatus(), order.getAddress(), order.getUser().getUid()}; 115 qr.update(sql, params); 116 117 /* 118 * 2. 循环遍历订单的所有条目,让每个条目生成一个Object[] 119 * 多个条目就对应Object[][] 120 * 执行批处理，完成插入订单条目 121 */ 122 sql = "insert into t_orderItem values (?,?,?,?,?,?,?,?)"; 123 List<OrderItem> items = order.getOrderItems(); 124 int len = items.size(); 125 Object [][] params2 = new Object[len][]; 126 OrderItem item = null; 127 Book book = null; 128 for(int i=0 ; i<len ; i++) { 129 item = items.get(i); 130 book = item.getBook(); 131 params2[i] = new Object[]{item.getOrderItemId(), item.getQuantity(), item.getSubtotal(),book.getBid(), 132 book.getBname(), book.getCurrPrice(), book.getImage_b(), item.getOrder().getOid()}; 133 } 134 qr.batch(sql, params2); 135 } 136 137 /** 138 * 根据id查找 139 * @param id 140 * @return 141 * @throws SQLException 142 */ 143 public Order findById(String id) throws SQLException { 144 String sql = "select * from t_order where oid=?"; 145 Order order = qr.query(sql, new BeanHandler<Order>(Order.class), id); 146 loadOrderItem(order); 147 return order; 148 } 149 150 /** 151 * 修改订单状态 152 * @param id 153 * @param status 154 * @throws SQLException 155 */ 156 public void updateStatus(String id, int status) throws SQLException { 157 String sql = "update t_order set status=? where oid=?"; 158 qr.update(sql, status, id); 159 } 160 161 /** 162 * 查找订单状态 163 * @param id 164 * @return 165 * @throws SQLException 166 */ 167 public int findStatus(String id) throws SQLException { 168 String sql = "select status from t_order where oid=?"; 169 Number status = (Number) qr.query(sql, new ScalarHandler(), id); 170 return status.intValue(); 171 } 172 173 /** 174 * 查询所有订单 175 * @param pc 176 * @return 177 * @throws SQLException 178 */ 179 public PageBean<Order> findAll(int pc) throws SQLException { 180 List<Expression> exprList = new ArrayList<Expression>(); 181 return findByCriteria(exprList, pc); 182 } 183 184 /** 185 * 根据状态查询 186 * @param status 187 * @param pc 188 * @return 189 * @throws SQLException 190 */ 191 public PageBean<Order> findByStatus(String status, int pc) throws SQLException { 192 List<Expression> exprList = new ArrayList<Expression>(); 193 exprList.add(new Expression("status", "=", status)); 194 return findByCriteria(exprList, pc); 195 } 196 197 }
项目源码：
http://pan.baidu.com/s/1gdVELIr