购物车及支付

购物车设计

实体类

 1 import java.io.Serializable;
 2 import java.util.HashMap;
 3 import java.util.Map;
 4 
 5 import com.itheima.domain.Book;
 6 /*
 7  * 购物车：
 8  * 同一本书对应着一个购物项
 9  */
10 public class Cart implements Serializable {
11     //key:购物项对应的书籍的ID，value：书籍对应的购物项
12     private Map<String, CartItem> items = new HashMap<String, CartItem>();
13     private int totalNum;//总数量
14     private float totalMoney;//总金额：付款金额
15     public Map<String, CartItem> getItems() {
16         return items;
17     }
18     public int getTotalNum() {
19         totalNum = 0;
20         for(Map.Entry<String, CartItem> me:items.entrySet()){
21             totalNum+=me.getValue().getNum();
22         }
23         return totalNum;
24     }
25     public float getTotalMoney() {
26         totalMoney = 0;
27         for(Map.Entry<String, CartItem> me:items.entrySet()){
28             totalMoney+=me.getValue().getPrice();
29         }
30         return totalMoney;
31     }
32     //项购物车的items中添加一本书
33     public void addBook(Book book){
34         if(items.containsKey(book.getId())){
35             //items有这本书对应的购物项了
36             CartItem item = items.get(book.getId());
37             item.setNum(item.getNum()+1);
38         }else{
39             CartItem item = new CartItem(book);
40             item.setNum(1);
41             items.put(book.getId(), item);
42         }
43     }
44 }

Cart

 1 import java.io.Serializable;
 2 
 3 import com.itheima.domain.Book;
 4 /**
 5  * 代表着一个购物项，一项就对应着一本书
 6  * @author wzhting
 7  *
 8  */
 9 public class CartItem implements Serializable {
10     private Book book;
11     private int num;//数量
12     private float price;//小计
13     
14     public CartItem(Book book){
15         this.book  = book;
16     }
17 
18     public Book getBook() {
19         return book;
20     }
21 
22     public void setBook(Book book) {
23         this.book = book;
24     }
25 
26     public int getNum() {
27         return num;
28     }
29 
30     public void setNum(int num) {
31         this.num = num;
32     }
33 
34     public float getPrice() {
35         return book.getMoney()*num;
36     }
37 
38 //    public void setPrice(float price) {
39 //        this.price = price;
40 //    }
41     
42 }

CartItem

控制层

 1 public class ControllerServlet extends HttpServlet {
 2     private BusinessService s = new BusinessServiceImpl();
 3     public void doGet(HttpServletRequest request, HttpServletResponse response)
 4             throws ServletException, IOException {
 5         String op = request.getParameter("op");
 6         if("buyBook".equals(op)){
 7             buyBook(request,response);
 8         }else if("delOneFormCart".equals(op)){
 9             delOneFormCart(request,response);
10         }else if("changeCartItemNum".equals(op)){
11             changeCartItemNum(request,response);
12         }
13     }
14     //修改购物项的数量
15     private void changeCartItemNum(HttpServletRequest request,
16             HttpServletResponse response)throws ServletException, IOException {
17         String bookId = request.getParameter("bookId");
18         String newnum = request.getParameter("newnum");
19         Cart cart = (Cart) request.getSession().getAttribute("cart");
20         cart.getItems().get(bookId).setNum(Integer.parseInt(newnum));
21         response.sendRedirect(request.getContextPath()+"/showCart.jsp");
22     }
23     //从购物车中删除一项
24     private void delOneFormCart(HttpServletRequest request,
25             HttpServletResponse response) throws ServletException, IOException{
26         String bookId = request.getParameter("bookId");
27         Cart cart = (Cart) request.getSession().getAttribute("cart");
28         cart.getItems().remove(bookId);
29         response.sendRedirect(request.getContextPath()+"/showCart.jsp");
30     }
31     //把书籍放入购物车
32     private void buyBook(HttpServletRequest request,
33             HttpServletResponse response)throws ServletException, IOException {
34         //获取要购物买的书籍
35         String bookId = request.getParameter("bookId");
36         Book book = s.findBookById(bookId);
37         //从HttpSession中先查，不在时创建一个新的购物车
38         HttpSession session = request.getSession();
39         Cart cart = (Cart)session.getAttribute("cart");
40         if(cart==null){
41             cart = new Cart();
42             session.setAttribute("cart", cart);
43         }
44         //把书籍放入购物车中
45         cart.addBook(book);
46         //提示购买成功
47         response.getWriter().write("<script type='text/javascript'>alert('购买成功')</script>");
48         response.setHeader("Refresh", "0;URL="+request.getContextPath());
49     }
50     public void doPost(HttpServletRequest request, HttpServletResponse response)
51             throws ServletException, IOException {
52         doGet(request, response);
53     }
54 
55 }

ControllerServlet

视图层　

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%@ include file="/top.jsp"%>
 3     <c:if test="${empty sessionScope.cart.items}">
 4         您还没有购买任何商品    
 5     </c:if>
 6     <c:if test="${!empty sessionScope.cart.items }">
 7         <h3>您购买的商品如下</h3>
 8         <table border="1" width="438">
 9             <tr>
10                 <th>书名</th>
11                 <th>数量</th>
12                 <th>单价</th>
13                 <th>小计</th>
14                 <th>操作</th>
15             </tr>
16             <c:forEach items="${sessionScope.cart.items}" var="me" varStatus="vs">
17                 <tr class="${vs.index%2==0?'odd':'even'}">
18                     <td>${me.value.book.name}</td>
19                     <td><input type="text" size="3" value="${me.value.num}" onchange="changeNum(this,${me.value.num},'${me.key}')"/></td>
20                     <td>${me.value.book.money}</td>
21                     <td>${me.value.price}</td>
22                     <td>
23                         <a href="javascript:delOneItem('${me.key}')">删除</a>
24                     </td>
25                 </tr>
26             </c:forEach>
27             <tr>
28                 <td colspan="5" align="right">
29                     总数量：${sessionScope.cart.totalNum}&nbsp;&nbsp;
30                     应付金额：${sessionScope.cart.totalMoney}&nbsp;&nbsp;
31                     <a href="${pageContext.request.contextPath}/servlet/ControllerServlet?op=genOrders">去付款</a>
32                 </td>
33             </tr>
34         </table>
35     </c:if>
36     <script type="text/javascript">
37         //输入验证：客户端验证（js）；服务器段验证（保证安全）；开发中：客户端+服务器段
38     
39         function delOneItem(bookId){
40             var sure = window.confirm("确定要删除该项吗？");
41             if(sure){
42                 window.location.href="${pageContext.request.contextPath}/servlet/ControllerServlet?op=delOneFormCart&bookId="+bookId;
43             }
44         }
45         function changeNum(inputObj,oldNum,bookId){
46             var newnum = inputObj.value;
47             
48             if(!/^[1-9][0-9]*$/.test(newnum)){
49                 alert("请输入正确的数值");
50                 inputObj.value = oldNum;
51                 return;
52             }
53             
54             var sure = window.confirm("确定要修改数量吗");
55             if(sure){
56                 window.location.href="${pageContext.request.contextPath}/servlet/ControllerServlet?op=changeCartItemNum&bookId="+bookId+"&newnum="+newnum;
57             }else{
58                 inputObj.value = oldNum;
59             }
60         }
61     </script>
62   </body>
63 </html>

ShowCart

生成订单

表的设计

实体类设计

 1 import java.io.Serializable;
 2 import java.util.ArrayList;
 3 import java.util.List;
 4 //订单
 5 public class Orders implements Serializable {
 6     private String ordersnum;//订单号，作为主键
 7     private float money;//订单金额----购物车的总金额
 8     private int num;//有多少件商品
 9     private int status;//订单状态  0未付款 1已付款 2 已发货
10     private Customer customer;
11     private List<OrdersItem> items = new ArrayList<OrdersItem>();//该订单对应的订单项
12     
13     public String getOrdersnum() {
14         return ordersnum;
15     }
16     public void setOrdersnum(String ordersnum) {
17         this.ordersnum = ordersnum;
18     }
19     public float getMoney() {
20         return money;
21     }
22     public void setMoney(float money) {
23         this.money = money;
24     }
25     public int getNum() {
26         return num;
27     }
28     public void setNum(int num) {
29         this.num = num;
30     }
31     public int getStatus() {
32         return status;
33     }
34     public void setStatus(int status) {
35         this.status = status;
36     }
37     public Customer getCustomer() {
38         return customer;
39     }
40     public void setCustomer(Customer customer) {
41         this.customer = customer;
42     }
43     public List<OrdersItem> getItems() {
44         return items;
45     }
46     public void setItems(List<OrdersItem> items) {
47         this.items = items;
48     }
49     
50 }

Orders

 1 import java.io.Serializable;
 2 
 3 public class OrdersItem implements Serializable {
 4     private String id;//主键
 5     private int num;//订单项数量
 6     private float money;//小计
 7     private Book book;
 8     public String getId() {
 9         return id;
10     }
11     public void setId(String id) {
12         this.id = id;
13     }
14     public int getNum() {
15         return num;
16     }
17     public void setNum(int num) {
18         this.num = num;
19     }
20     public float getMoney() {
21         return money;
22     }
23     public void setMoney(float money) {
24         this.money = money;
25     }
26     public Book getBook() {
27         return book;
28     }
29     public void setBook(Book book) {
30         this.book = book;
31     }
32     
33 }

OrdersItem

控制器设计

 1 public class ControllerServlet extends HttpServlet {
 2     private BusinessService s = new BusinessServiceImpl();
 3     public void doGet(HttpServletRequest request, HttpServletResponse response)
 4             throws ServletException, IOException {
 5         String op = request.getParameter("op");
 6         if("showMyOrders".equals(op)){
 7             showMyOrders(request,response);
 8         }
 9     }
10     //查看用户自己的订单
11     private void showMyOrders(HttpServletRequest request,
12             HttpServletResponse response) throws ServletException, IOException{
13         HttpSession session = request.getSession();
14         Customer c = (Customer) session.getAttribute("customer");
15         if(c==null){
16             response.getWriter().write("<script type='text/javascript'>alert('请先登录')</script>");
17             response.setHeader("Refresh", "0;URL="+request.getContextPath()+"/login.jsp");
18             return;
19         }
20         List<Orders> os = s.findOrdersByCustomer(c.getId());
21         request.setAttribute("os", os);
22         request.getRequestDispatcher("/showOrders.jsp").forward(request, response);
23     }
24 }

ControllerServlet

DAO层

 1 import org.apache.commons.dbutils.QueryRunner;
 2 import org.apache.commons.dbutils.handlers.BeanHandler;
 3 import org.apache.commons.dbutils.handlers.BeanListHandler;
 4 
 5 import com.itheima.dao.OrdersDao;
 6 import com.itheima.domain.Orders;
 7 import com.itheima.domain.OrdersItem;
 8 import com.itheima.util.DBCPUtil;
 9 
10 public class OrdersDaoMySQLImpl implements OrdersDao {
11     private QueryRunner qr = new QueryRunner(DBCPUtil.getDataSource());
12 
13     public void save(Orders os) {
14         if(os==null)
15             throw new IllegalArgumentException("保存的订单不能为空");
16         if(os.getCustomer()==null)
17             throw new IllegalArgumentException("请设置订单所属的客户");
18         //保存订单的基本信息
19         try {
20             qr.update("insert into orders (ordersnum,money,num,status,customerid) values(?,?,?,?,?)", 
21                     os.getOrdersnum(),os.getMoney(),os.getNum(),
22                     os.getStatus(),os.getCustomer().getId());
23             //保存订单项信息
24             List<OrdersItem> items = os.getItems();
25             if(items!=null&&items.size()>0){
26                 for(OrdersItem item:items){
27                     qr.update("insert into ordersitem (id,num,money,bookid,ordersnum) values(?,?,?,?,?)", 
28                             item.getId(),item.getNum(),item.getMoney(),
29                             item.getBook().getId(),os.getOrdersnum());
30                 }
31             }
32         } catch (SQLException e) {
33             throw new RuntimeException(e);
34         }
35     }
36 
37     public void update(Orders os) {
38         try {
39             qr.update("update orders set money=?,num=?,status=? where ordersnum=?", 
40                     os.getMoney(),os.getNum(),
41                     os.getStatus(),os.getOrdersnum());
42         } catch (SQLException e) {
43             throw new RuntimeException(e);
44         }
45     }
46 
47     public Orders findByOrdersNum(String ordersNum) {
48         try {
49             return qr.query("select * from orders where ordersnum=?", new BeanHandler<Orders>(Orders.class), ordersNum);
50         } catch (SQLException e) {
51             throw new RuntimeException(e);
52         }
53     }
54 
55     public List<Orders> findOrdersByCustomer(String customerId) {
56         try {
57             return qr.query("select * from orders where customerid=? order by ordersnum desc", new BeanListHandler<Orders>(Orders.class), customerId);
58         } catch (SQLException e) {
59             throw new RuntimeException(e);
60         }
61     }
62 
63 }

OrdersDaoMySQLImpl

视图层

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%@ include file="/top.jsp"%>
 3     <c:if test="${empty os}">
 4         您还没有下过单    
 5     </c:if>
 6     <c:if test="${!empty os }">
 7         <h3>一个月的订单如下</h3>
 8         <table border="1" width="438">
 9             <tr>
10                 <th>订单号</th>
11                 <th>金额</th>
12                 <th>状态</th>
13                 <th>操作</th>
14             </tr>
15             <c:forEach items="${os}" var="o" varStatus="vs">
16                 <tr class="${vs.index%2==0?'odd':'even'}">
17                     <td>${o.ordersnum}</td>
18                     <td>${o.money}</td>
19                     <td>
20                         <c:choose>
21                             <c:when test="${o.status==0}">
22                                 未付款<a href="${pageContext.request.contextPath}/servlet/ControllerServlet?op=payUI&ordersnum=${o.ordersnum}">付款</a>
23                             </c:when>
24                             <c:when test="${o.status==1}">
25                                 已付款
26                             </c:when>
27                             <c:otherwise>
28                                 已发货
29                             </c:otherwise>
30                         </c:choose>
31                     </td>
32                     <td>
33                         <a href="">详细</a>
34                     </td>
35                 </tr>
36             </c:forEach>
37         </table>
38     </c:if>
39    
40   </body>
41 </html>

ShowOrders.jsp

在线支付

支付过程图：

油条类

  1 import java.io.UnsupportedEncodingException;
  2 import java.security.MessageDigest;
  3 import java.security.NoSuchAlgorithmException;
  4 import java.util.Arrays;
  5 
  6 public class PaymentUtil {
  7 
  8     private static String encodingCharset = "UTF-8";
  9     
 10     /**
 11      * 生成hmac方法
 12      * 
 13      * @param p0_Cmd 业务类型
 14      * @param p1_MerId 商户编号
 15      * @param p2_Order 商户订单号
 16      * @param p3_Amt 支付金额
 17      * @param p4_Cur 交易币种
 18      * @param p5_Pid 商品名称
 19      * @param p6_Pcat 商品种类
 20      * @param p7_Pdesc 商品描述
 21      * @param p8_Url 商户接收支付成功数据的地址
 22      * @param p9_SAF 送货地址
 23      * @param pa_MP 商户扩展信息
 24      * @param pd_FrpId 银行编码
 25      * @param pr_NeedResponse 应答机制
 26      * @param keyValue 商户密钥
 27      * @return
 28      */
 29     public static String buildHmac(String p0_Cmd,String p1_MerId,
 30             String p2_Order, String p3_Amt, String p4_Cur,String p5_Pid, String p6_Pcat,
 31             String p7_Pdesc,String p8_Url, String p9_SAF,String pa_MP,String pd_FrpId,
 32             String pr_NeedResponse,String keyValue) {
 33         StringBuilder sValue = new StringBuilder();
 34         // 业务类型
 35         sValue.append(p0_Cmd);
 36         // 商户编号
 37         sValue.append(p1_MerId);
 38         // 商户订单号
 39         sValue.append(p2_Order);
 40         // 支付金额
 41         sValue.append(p3_Amt);
 42         // 交易币种
 43         sValue.append(p4_Cur);
 44         // 商品名称
 45         sValue.append(p5_Pid);
 46         // 商品种类
 47         sValue.append(p6_Pcat);
 48         // 商品描述
 49         sValue.append(p7_Pdesc);
 50         // 商户接收支付成功数据的地址
 51         sValue.append(p8_Url);
 52         // 送货地址
 53         sValue.append(p9_SAF);
 54         // 商户扩展信息
 55         sValue.append(pa_MP);
 56         // 银行编码
 57         sValue.append(pd_FrpId);
 58         // 应答机制
 59         sValue.append(pr_NeedResponse);
 60         
 61         return PaymentUtil.hmacSign(sValue.toString(), keyValue);
 62     }
 63     
 64     /**
 65      * 返回校验hmac方法
 66      * 
 67      * @param hmac 支付网关发来的加密验证码
 68      * @param p1_MerId 商户编号
 69      * @param r0_Cmd 业务类型
 70      * @param r1_Code 支付结果
 71      * @param r2_TrxId 易宝支付交易流水号
 72      * @param r3_Amt 支付金额
 73      * @param r4_Cur 交易币种
 74      * @param r5_Pid 商品名称
 75      * @param r6_Order 商户订单号
 76      * @param r7_Uid 易宝支付会员ID
 77      * @param r8_MP 商户扩展信息
 78      * @param r9_BType 交易结果返回类型
 79      * @param keyValue 密钥
 80      * @return
 81      */
 82     public static boolean verifyCallback(String hmac, String p1_MerId,
 83             String r0_Cmd, String r1_Code, String r2_TrxId, String r3_Amt,
 84             String r4_Cur, String r5_Pid, String r6_Order, String r7_Uid,
 85             String r8_MP, String r9_BType, String keyValue) {
 86         StringBuilder sValue = new StringBuilder();
 87         // 商户编号
 88         sValue.append(p1_MerId);
 89         // 业务类型
 90         sValue.append(r0_Cmd);
 91         // 支付结果
 92         sValue.append(r1_Code);
 93         // 易宝支付交易流水号
 94         sValue.append(r2_TrxId);
 95         // 支付金额
 96         sValue.append(r3_Amt);
 97         // 交易币种
 98         sValue.append(r4_Cur);
 99         // 商品名称
100         sValue.append(r5_Pid);
101         // 商户订单号
102         sValue.append(r6_Order);
103         // 易宝支付会员ID
104         sValue.append(r7_Uid);
105         // 商户扩展信息
106         sValue.append(r8_MP);
107         // 交易结果返回类型
108         sValue.append(r9_BType);
109         String sNewString = PaymentUtil.hmacSign(sValue.toString(), keyValue);
110         return sNewString.equals(hmac);
111     }
112     
113     /**
114      * @param aValue
115      * @param aKey
116      * @return
117      */
118     public static String hmacSign(String aValue, String aKey) {
119         byte k_ipad[] = new byte[64];
120         byte k_opad[] = new byte[64];
121         byte keyb[];
122         byte value[];
123         try {
124             keyb = aKey.getBytes(encodingCharset);
125             value = aValue.getBytes(encodingCharset);
126         } catch (UnsupportedEncodingException e) {
127             keyb = aKey.getBytes();
128             value = aValue.getBytes();
129         }
130 
131         Arrays.fill(k_ipad, keyb.length, 64, (byte) 54);
132         Arrays.fill(k_opad, keyb.length, 64, (byte) 92);
133         for (int i = 0; i < keyb.length; i++) {
134             k_ipad[i] = (byte) (keyb[i] ^ 0x36);
135             k_opad[i] = (byte) (keyb[i] ^ 0x5c);
136         }
137 
138         MessageDigest md = null;
139         try {
140             md = MessageDigest.getInstance("MD5");
141         } catch (NoSuchAlgorithmException e) {
142 
143             return null;
144         }
145         md.update(k_ipad);
146         md.update(value);
147         byte dg[] = md.digest();
148         md.reset();
149         md.update(k_opad);
150         md.update(dg, 0, 16);
151         dg = md.digest();
152         return toHex(dg);
153     }
154 
155     public static String toHex(byte input[]) {
156         if (input == null)
157             return null;
158         StringBuffer output = new StringBuffer(input.length * 2);
159         for (int i = 0; i < input.length; i++) {
160             int current = input[i] & 0xff;
161             if (current < 16)
162                 output.append("0");
163             output.append(Integer.toString(current, 16));
164         }
165 
166         return output.toString();
167     }
168 
169     /**
170      * 
171      * @param args
172      * @param key
173      * @return
174      */
175     public static String getHmac(String[] args, String key) {
176         if (args == null || args.length == 0) {
177             return (null);
178         }
179         StringBuffer str = new StringBuffer();
180         for (int i = 0; i < args.length; i++) {
181             str.append(args[i]);
182         }
183         return (hmacSign(str.toString(), key));
184     }
185 
186     /**
187      * @param aValue
188      * @return
189      */
190     public static String digest(String aValue) {
191         aValue = aValue.trim();
192         byte value[];
193         try {
194             value = aValue.getBytes(encodingCharset);
195         } catch (UnsupportedEncodingException e) {
196             value = aValue.getBytes();
197         }
198         MessageDigest md = null;
199         try {
200             md = MessageDigest.getInstance("SHA");
201         } catch (NoSuchAlgorithmException e) {
202             e.printStackTrace();
203             return null;
204         }
205         return toHex(md.digest(value));
206 
207     }
208     
209 //    public static void main(String[] args) {
210 //        System.out.println(hmacSign("AnnulCard1000043252120080620160450.0http://localhost/SZXpro/callback.asp杩?4564868265473632445648682654736324511","8UPp0KE8sq73zVP370vko7C39403rtK1YwX40Td6irH216036H27Eb12792t"));
211 //    }
212 }

PaymentUtil

控制层servlet

 1 public class ControllerServlet extends HttpServlet {
 2     private BusinessService s = new BusinessServiceImpl();
 3     public void doGet(HttpServletRequest request, HttpServletResponse response)
 4             throws ServletException, IOException {
 5         String op = request.getParameter("op");
 6         if("payUI".equals(op)){
 7             payUI(request,response);
 8         }else if("pay".equals(op)){
 9             pay(request,response);
10         }else if("showMyOrders".equals(op)){
11             showMyOrders(request,response);
12         }
13     }
14     //支付：准备数据
15     private void pay(HttpServletRequest request, HttpServletResponse response)  throws ServletException, IOException{
16         String ordersnum = request.getParameter("ordersnum");
17         String money = request.getParameter("money");
18         
19         String pd_FrpId = request.getParameter("pd_FrpId");//支付通道
20         
21         String p0_Cmd = "Buy";
22         String p1_MerId = "10001126856";//在第三方申请的编号
23         String p2_Order = ordersnum;
24         String p3_Amt = money;
25         String p4_Cur = "CNY";
26         String p5_Pid = "aaa";
27         String p6_Pcat = "bbb";
28         String p7_Pdesc = "ccc";
29         String p8_Url = "http://localhost:8080/day23_00_bookstore/servlet/PaymentResponse";
30         String p9_SAF = "1";
31         String pa_MP = "";
32         String pr_NeedResponse = "1";
33         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, "69cl522AV6q613Ii4W6u8K6XuW8vM1N6bFgyv769220IuYe9u37N4y7rI4Pl");
34         request.setAttribute("p0_Cmd",p0_Cmd );
35         request.setAttribute("p1_MerId",p1_MerId );
36         request.setAttribute("p2_Order",p2_Order );
37         request.setAttribute("p3_Amt",p3_Amt );
38         request.setAttribute("p4_Cur",p4_Cur );
39         request.setAttribute("p5_Pid",p5_Pid );
40         request.setAttribute("p6_Pcat",p6_Pcat );
41         request.setAttribute("p7_Pdesc",p7_Pdesc );
42         request.setAttribute("p8_Url",p8_Url );
43         request.setAttribute("p9_SAF",p9_SAF );
44         request.setAttribute("pa_MP",pa_MP );
45         request.setAttribute("pd_FrpId",pd_FrpId );
46         request.setAttribute("pr_NeedResponse",pr_NeedResponse );
47         request.setAttribute("hmac",hmac );
48         request.getRequestDispatcher("/sure.jsp").forward(request, response);
49     }
50     //转向支付页面
51     private void payUI(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
52         String ordersnum = request.getParameter("ordersnum");
53         Orders o = s.findOrdersByNum(ordersnum);
54         request.setAttribute("o", o);
55         request.getRequestDispatcher("/pay.jsp").forward(request, response);
56     }
57     //生成订单，然后转向选择银行页面
58     private void genOrders(HttpServletRequest request,
59             HttpServletResponse response) throws ServletException, IOException{
60         //判断用户是否登录
61         HttpSession session = request.getSession();
62         Customer c = (Customer) session.getAttribute("customer");
63         if(c==null){
64             response.getWriter().write("<script type='text/javascript'>alert('请先登录')</script>");
65             response.setHeader("Refresh", "0;URL="+request.getContextPath()+"/login.jsp");
66             return;
67         }
68         //把购物车---->订单
69         Cart cart = (Cart)session.getAttribute("cart");
70         Orders os = new Orders();
71         String ordersnum = System.nanoTime()+"";
72         os.setOrdersnum(ordersnum);
73         os.setMoney(cart.getTotalMoney());
74         os.setNum(cart.getTotalNum());
75         os.setCustomer(c);
76         //把购物项---->订单项
77         Map<String, CartItem> items = cart.getItems();
78         for(Map.Entry<String, CartItem> me:items.entrySet()){
79             OrdersItem oitem = new OrdersItem();
80             oitem.setId(UUID.randomUUID().toString());
81             oitem.setNum(me.getValue().getNum());
82             oitem.setMoney(me.getValue().getPrice());
83             oitem.setBook(me.getValue().getBook());
84             os.getItems().add(oitem);
85         }
86         //生成订单
87         s.saveOrders(os);
88         //转向付款页面：把订单号传过去
89         response.sendRedirect(request.getContextPath()+"/servlet/ControllerServlet?op=payUI&ordersnum="+ordersnum);
90     }
91 
92     public void doPost(HttpServletRequest request, HttpServletResponse response)
93             throws ServletException, IOException {
94         doGet(request, response);
95     }
96 
97 }

ControllerServlet

响应

 1 import java.io.IOException;
 2 
 3 import javax.servlet.ServletException;
 4 import javax.servlet.http.HttpServlet;
 5 import javax.servlet.http.HttpServletRequest;
 6 import javax.servlet.http.HttpServletResponse;
 7 
 8 import com.itheima.domain.Orders;
 9 import com.itheima.service.BusinessService;
10 import com.itheima.service.impl.BusinessServiceImpl;
11 import com.itheima.util.PaymentUtil;
12 //接受支付结果的处理
13 public class PaymentResponse extends HttpServlet {
14     private BusinessService s = new BusinessServiceImpl();
15     public void doGet(HttpServletRequest request, HttpServletResponse response)
16             throws ServletException, IOException {
17         String p1_MerId = request.getParameter("p1_MerId");
18         String r0_Cmd= request.getParameter("r0_Cmd");
19         String r1_Code= request.getParameter("r1_Code");//1代表成功
20         String r2_TrxId= request.getParameter("r2_TrxId");
21         String r3_Amt= request.getParameter("r3_Amt");
22         String r4_Cur= request.getParameter("r4_Cur");
23         String r5_Pid= request.getParameter("r5_Pid");
24         String r6_Order= request.getParameter("r6_Order");//订单号
25         String r7_Uid= request.getParameter("r7_Uid");
26         String r8_MP= request.getParameter("r8_MP");
27         String r9_BType= request.getParameter("r9_BType");//为“1”: 浏览器重定向;为“2”: 服务器点对点通讯.
28         String hmac= request.getParameter("hmac");
29         //验证信息的正确性
30         boolean b = 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, "69cl522AV6q613Ii4W6u8K6XuW8vM1N6bFgyv769220IuYe9u37N4y7rI4Pl");
31         if(b){
32             if("1".equals(r1_Code)){
33                 //支付成功
34                 if("2".equals(r9_BType)){
35                     response.getWriter().write("success");
36                 }
37                 //更改订单的状态
38                 Orders o = s.findOrdersByNum(r6_Order);
39                 if(o==null){
40                     response.getWriter().write("没有改订单");
41                     return;
42                 }
43                 o.setStatus(1);
44                 s.updateOrders(o);
45                 response.getWriter().write("<script type='text/javascript'>alert('支付成功')</script>");
46                 response.setHeader("Refresh", "0;URL="+request.getContextPath());
47             }else{
48                 response.getWriter().write("支付失败！请与网站联系");
49             }
50         }else{
51             response.getWriter().write("返回的信息有误,请与网站联系");
52         }
53     }
54 
55     public void doPost(HttpServletRequest request, HttpServletResponse response)
56             throws ServletException, IOException {
57         doGet(request, response);
58     }
59 
60 }

PaymentResponse

视图层

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 
 3 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 4 <html>
 5   <head>
 6     <title>在线支付</title>
 7     
 8     <meta http-equiv="pragma" content="no-cache">
 9     <meta http-equiv="cache-control" content="no-cache">
10     <meta http-equiv="expires" content="0">
11     <!--
12     <link rel="stylesheet" type="text/css" href="styles.css">
13     -->
14 
15   </head>
16   
17   <body>
18     <form action="${pageContext.request.contextPath}/servlet/ControllerServlet?op=pay" method="post">
19         <table width="60%">
20             <tr>  
21                 <td bgcolor="#F7FEFF" colspan="4">
22                      订单号：<INPUT TYPE="text" NAME="ordersnum" value="${o.ordersnum}" readonly="readonly"> 
23                      支付金额：<INPUT TYPE="text" NAME="money" size="6" value="0.01" readonly="readonly">元
24                  </td>
25             </tr>
26             <tr><td><br/></td></tr>
27             <tr>
28                 <td>请您选择在线支付银行</td>
29             </tr>
30             <tr>
31               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="CMBCHINA-NET">招商银行 </td>
32               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="ICBC-NET">工商银行</td>
33               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="ABC-NET">农业银行</td>
34               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="CCB-NET">建设银行 </td>
35             </tr>
36             <tr>
37               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="CMBC-NET">中国民生银行总行</td>
38               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="CEB-NET" >光大银行 </td>
39               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="BOCO-NET">交通银行</td>
40               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="SDB-NET">深圳发展银行</td>
41             </tr>
42             <tr>
43               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="BCCB-NET">北京银行</td>
44               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="CIB-NET">兴业银行 </td>
45               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="SPDB-NET">上海浦东发展银行 </td>
46               <td><INPUT TYPE="radio" NAME="pd_FrpId" value="ECITIC-NET">中信银行</td>
47             </tr>
48             <tr><td><br/></td></tr>
49             <tr>
50               <td><INPUT TYPE="submit" value="确定支付"></td>
51             </tr>
52          </table>
53         
54     </form>
55   </body>
56 </html>

pay.jsp

 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 2 <html>
 3   <head>
 4     <title>title</title>
 5     
 6     <meta http-equiv="pragma" content="no-cache">
 7     <meta http-equiv="cache-control" content="no-cache">
 8     <meta http-equiv="expires" content="0">
 9     <!--
10     <link rel="stylesheet" type="text/css" href="styles.css">
11     -->
12 
13   </head>
14   
15   <body>
16     <form id="f1" action="https://www.yeepay.com/app-merchant-proxy/node" method="post">
17         <input type="hidden" name="p0_Cmd" value="${p0_Cmd}"/>
18         <input type="hidden" name="p1_MerId" value="${p1_MerId}"/>
19         <input type="hidden" name="p2_Order" value="${p2_Order}"/>
20         <input type="hidden" name="p3_Amt" value="${p3_Amt}"/>
21         <input type="hidden" name="p4_Cur" value="${p4_Cur}"/>
22         <input type="hidden" name="p5_Pid" value="${p5_Pid}"/>
23         <input type="hidden" name="p6_Pcat" value="${p6_Pcat}"/>
24         <input type="hidden" name="p7_Pdesc" value="${p7_Pdesc}"/>
25         <input type="hidden" name="p8_Url" value="${p8_Url}"/>
26         <input type="hidden" name="p9_SAF" value="${p9_SAF}"/>
27         <input type="hidden" name="pa_MP" value="${pa_MP}"/>
28         <input type="hidden" name="pd_FrpId" value="${pd_FrpId}"/>
29         <input type="hidden" name="pr_NeedResponse" value="${pr_NeedResponse}"/>
30         <input type="hidden" name="hmac" value="${hmac}"/>
31     </form>
32     <script type="text/javascript">
33         window.onload=function(){
34             document.getElementById("f1").submit();
35         }
36     </script>
37   </body>
38 </html>

Sure.jsp

订单的查询和修改

控制层

 1 public class ControllerServlet extends HttpServlet {
 2     private BusinessService s = new BusinessServiceImpl();
 3     public void doGet(HttpServletRequest request, HttpServletResponse response)
 4             throws ServletException, IOException {
 5         String op = request.getParameter("op");
 6         if("showMyOrders".equals(op)){
 7             showMyOrders(request,response);
 8         }
 9     }
10     //查看用户自己的订单
11     private void showMyOrders(HttpServletRequest request,
12             HttpServletResponse response) throws ServletException, IOException{
13         HttpSession session = request.getSession();
14         Customer c = (Customer) session.getAttribute("customer");
15         if(c==null){
16             response.getWriter().write("<script type='text/javascript'>alert('请先登录')</script>");
17             response.setHeader("Refresh", "0;URL="+request.getContextPath()+"/login.jsp");
18             return;
19         }
20         List<Orders> os = s.findOrdersByCustomer(c.getId());
21         request.setAttribute("os", os);
22         request.getRequestDispatcher("/showOrders.jsp").forward(request, response);
23     }
24     public void doPost(HttpServletRequest request, HttpServletResponse response)
25             throws ServletException, IOException {
26         doGet(request, response);
27     }
28 
29 }

ControllerServlet

视图层

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%@ include file="/top.jsp"%>
 3     <c:if test="${empty os}">
 4         您还没有下过单    
 5     </c:if>
 6     <c:if test="${!empty os }">
 7         <h3>一个月的订单如下</h3>
 8         <table border="1" width="438">
 9             <tr>
10                 <th>订单号</th>
11                 <th>金额</th>
12                 <th>状态</th>
13                 <th>操作</th>
14             </tr>
15             <c:forEach items="${os}" var="o" varStatus="vs">
16                 <tr class="${vs.index%2==0?'odd':'even'}">
17                     <td>${o.ordersnum}</td>
18                     <td>${o.money}</td>
19                     <td>
20                         <c:choose>
21                             <c:when test="${o.status==0}">
22                                 未付款<a href="${pageContext.request.contextPath}/servlet/ControllerServlet?op=payUI&ordersnum=${o.ordersnum}">付款</a>
23                             </c:when>
24                             <c:when test="${o.status==1}">
25                                 已付款
26                             </c:when>
27                             <c:otherwise>
28                                 已发货
29                             </c:otherwise>
30                         </c:choose>
31                     </td>
32                     <td>
33                         <a href="">详细</a>
34                     </td>
35                 </tr>
36             </c:forEach>
37         </table>
38     </c:if>
39    
40   </body>
41 </html>

ShowOrders.jsp

合群是堕落的开始优秀的开始是孤行

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原文地址：https://www.cnblogs.com/biaogejiushibiao/p/9363370.html