package com.learning.web.servlet; import java.io.IOException; import java.util.ResourceBundle; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.learning.utils.PaymentUtil; @WebServlet("/payOnline") public class PayOnline extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String orderid = request.getParameter("orderid"); String money = request.getParameter("money"); // 银行 String pd_FrpId = request.getParameter("pd_FrpId"); // 发给支付公司需要哪些数据 String p0_Cmd = "Buy"; String p1_MerId = ResourceBundle.getBundle("/WEB-INF/classes/merchantInfo").getString( "p1_MerId"); String p2_Order = orderid; String p3_Amt = money; String p4_Cur = "CNY"; String p5_Pid = ""; String p6_Pcat = ""; String p7_Pdesc = ""; // 支付成功回调地址 ---- 第三方支付公司会访问、用户访问 // 第三方支付可以访问网址(本项目网址) String p8_Url = "http://115.170.37.189/day19pay/callback"; String p9_SAF = ""; String pa_MP = ""; String pr_NeedResponse = "1"; // 加密hmac 需要密钥 String keyValue = ResourceBundle.getBundle("merchantInfo").getString( "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); // 生成url --- url? request.setAttribute("pd_FrpId", pd_FrpId); request.setAttribute("p0_Cmd", p0_Cmd); request.setAttribute("p1_MerId", p1_MerId); request.setAttribute("p2_Order", p2_Order); request.setAttribute("p3_Amt", p3_Amt); request.setAttribute("p4_Cur", p4_Cur); request.setAttribute("p5_Pid", p5_Pid); request.setAttribute("p6_Pcat", p6_Pcat); request.setAttribute("p7_Pdesc", p7_Pdesc); request.setAttribute("p8_Url", p8_Url); request.setAttribute("p9_SAF", p9_SAF); request.setAttribute("pa_MP", pa_MP); request.setAttribute("pr_NeedResponse", pr_NeedResponse); request.setAttribute("hmac", hmac); request.getRequestDispatcher("/confirm.jsp").forward(request, response); } } 

 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib prefix="p" uri="http://www.itcast.cn/tag"%>   
 
订单号：${p2_Order},付款金额 ：${p3_Amt }

 package com.learning.web.servlet; import java.io.IOException; import java.util.ResourceBundle; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.learning.service.OrderService; import com.learning.utils.PaymentUtil; /** * 该Servlet会在支付成功后 进行调用----- 支付公司 、客户 * * @author seawind * */ public class CallbackServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 获得回调所有数据 String p1_MerId = request.getParameter("p1_MerId"); String r0_Cmd = request.getParameter("r0_Cmd"); String r1_Code = request.getParameter("r1_Code"); String r2_TrxId = request.getParameter("r2_TrxId"); String r3_Amt = request.getParameter("r3_Amt"); String r4_Cur = request.getParameter("r4_Cur"); String r5_Pid = request.getParameter("r5_Pid"); String r6_Order = request.getParameter("r6_Order"); String r7_Uid = request.getParameter("r7_Uid"); String r8_MP = request.getParameter("r8_MP"); String r9_BType = request.getParameter("r9_BType"); String rb_BankId = request.getParameter("rb_BankId"); String ro_BankOrderId = request.getParameter("ro_BankOrderId"); String rp_PayDate = request.getParameter("rp_PayDate"); String rq_CardNo = request.getParameter("rq_CardNo"); String ru_Trxtime = request.getParameter("ru_Trxtime"); // 身份校验 --- 判断是不是支付公司通知你 String hmac = request.getParameter("hmac"); String keyValue = ResourceBundle.getBundle("merchantInfo").getString( "keyValue"); // 自己对上面数据进行加密 --- 比较支付公司发过来hamc boolean isValid = 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 (isValid) { // 响应数据有效 if (r9_BType.equals("1")) { // 浏览器重定向 response.setContentType("text/html;charset=utf-8"); response.getWriter().println("
付款成功！等待商城进一步操作！等待收货...
"); } else if (r9_BType.equals("2")) { // 服务器点对点 --- 支付公司通知你 System.out.println("付款成功！"); // 修改订单状态 为已付款 OrderService orderService=new OrderService(); orderService.modifyOrderState(p1_MerId); // 回复支付公司 response.getWriter().print("success"); } } else { // 数据无效 System.out.println("数据被篡改！"); } } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } } 

 package com.learning.utils; import java.io.UnsupportedEncodingException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.Arrays; public class PaymentUtil { private static String encodingCharset = "UTF-8"; /** * 生成hmac方法 * * @param p0_Cmd 业务类型 * @param p1_MerId 商户编号 * @param p2_Order 商户订单号 * @param p3_Amt 支付金额 * @param p4_Cur 交易币种 * @param p5_Pid 商品名称 * @param p6_Pcat 商品种类 * @param p7_Pdesc 商品描述 * @param p8_Url 商户接收支付成功数据的地址 * @param p9_SAF 送货地址 * @param pa_MP 商户扩展信息 * @param pd_FrpId 银行编码 * @param pr_NeedResponse 应答机制 * @param keyValue 商户密钥 * @return */ public static String buildHmac(String p0_Cmd,String p1_MerId, String p2_Order, String p3_Amt, String p4_Cur,String p5_Pid, String p6_Pcat, String p7_Pdesc,String p8_Url, String p9_SAF,String pa_MP,String pd_FrpId, String pr_NeedResponse,String keyValue) { StringBuilder sValue = new StringBuilder(); // 业务类型 sValue.append(p0_Cmd); // 商户编号 sValue.append(p1_MerId); // 商户订单号 sValue.append(p2_Order); // 支付金额 sValue.append(p3_Amt); // 交易币种 sValue.append(p4_Cur); // 商品名称 sValue.append(p5_Pid); // 商品种类 sValue.append(p6_Pcat); // 商品描述 sValue.append(p7_Pdesc); // 商户接收支付成功数据的地址 sValue.append(p8_Url); // 送货地址 sValue.append(p9_SAF); // 商户扩展信息 sValue.append(pa_MP); // 银行编码 sValue.append(pd_FrpId); // 应答机制 sValue.append(pr_NeedResponse); return PaymentUtil.hmacSign(sValue.toString(), keyValue); } /** * 返回校验hmac方法 * * @param hmac 支付网关发来的加密验证码 * @param p1_MerId 商户编号 * @param r0_Cmd 业务类型 * @param r1_Code 支付结果 * @param r2_TrxId 易宝支付交易流水号 * @param r3_Amt 支付金额 * @param r4_Cur 交易币种 * @param r5_Pid 商品名称 * @param r6_Order 商户订单号 * @param r7_Uid 易宝支付会员ID * @param r8_MP 商户扩展信息 * @param r9_BType 交易结果返回类型 * @param keyValue 密钥 * @return */ public static boolean verifyCallback(String hmac, String p1_MerId, String r0_Cmd, String r1_Code, String r2_TrxId, String r3_Amt, String r4_Cur, String r5_Pid, String r6_Order, String r7_Uid, String r8_MP, String r9_BType, String keyValue) { StringBuilder sValue = new StringBuilder(); // 商户编号 sValue.append(p1_MerId); // 业务类型 sValue.append(r0_Cmd); // 支付结果 sValue.append(r1_Code); // 易宝支付交易流水号 sValue.append(r2_TrxId); // 支付金额 sValue.append(r3_Amt); // 交易币种 sValue.append(r4_Cur); // 商品名称 sValue.append(r5_Pid); // 商户订单号 sValue.append(r6_Order); // 易宝支付会员ID sValue.append(r7_Uid); // 商户扩展信息 sValue.append(r8_MP); // 交易结果返回类型 sValue.append(r9_BType); String sNewString = PaymentUtil.hmacSign(sValue.toString(), keyValue); return sNewString.equals(hmac); } /** * @param aValue * @param aKey * @return */ public static String hmacSign(String aValue, String aKey) { byte k_ipad[] = new byte[64]; byte k_opad[] = new byte[64]; byte keyb[]; byte value[]; try { keyb = aKey.getBytes(encodingCharset); value = aValue.getBytes(encodingCharset); } catch (UnsupportedEncodingException e) { keyb = aKey.getBytes(); value = aValue.getBytes(); } Arrays.fill(k_ipad, keyb.length, 64, (byte) 54); Arrays.fill(k_opad, keyb.length, 64, (byte) 92); for (int i = 0; i