java网上图书商城（9）支付模块

本文实例为大家分享了java网上商城支付模块的具体代码，供大家参考，具体内容如下

1.支付准备

public String paymentPre(HttpServletRequest req, HttpServletResponse resp)  throws ServletException, IOException { req.setAttribute("order", orderService.load(req.getParameter("oid"))); return "f:/jsps/order/pay.jsp";}

2.支付方法

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;} 

3.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）

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;}

4.pay.jsp

<%@ page language="java" import="java.util.*" pageEncoding="GBK"%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <title>pay.jsp</title>   <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0">  <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> <link rel="stylesheet" type="text/css" href="<c:url value='/jsps/css/order/pay.css'/>"> <script type="text/javascript" src="<c:url value='/jquery/jquery-1.5.1.js'/>"></script> <script type="text/javascript">$(function() { $("img").click(function() {  $("#" + $(this).attr("name")).attr("checked", true); });});</script> </head>  <body><div> <span>支付金额：</span><span>¥${order.total }</span> <span>编号：${order.oid }</span></div><form action="<c:url value='/OrderServlet'/>" method="post" id="form1" target="_top"><input type="hidden" name="method" value="payment"/><input type="hidden" name="oid" value="${order.oid }"/><div> <div>选择网上银行</div> <div style="margin-left: 20px;">  <div style="margin-bottom: 20px;">  <input id="ICBC-NET-B2C" type="radio" name="yh" value="ICBC-NET-B2C" checked="checked"/>  <img name="ICBC-NET-B2C" align="middle" src="<c:url value='/bank_img/icbc.bmp'/>"/>     <input id="CMBCHINA-NET-B2C" type="radio" name="yh" value="CMBCHINA-NET-B2C"/>  <img name="CMBCHINA-NET-B2C" align="middle" src="<c:url value='/bank_img/cmb.bmp'/>"/>   <input id="ABC-NET-B2C" type="radio" name="yh" value="ABC-NET-B2C"/>  <img name="ABC-NET-B2C" align="middle" src="<c:url value='/bank_img/abc.bmp'/>"/>     <input id="CCB-NET-B2C" type="radio" name="yh" value="CCB-NET-B2C"/>  <img name="CCB-NET-B2C" align="middle" src="<c:url value='/bank_img/ccb.bmp'/>"/>  </div>   <div style="margin-bottom: 20px;">  <input id="BCCB-NET-B2C" type="radio" name="yh" value="BCCB-NET-B2C"/>  <img name="BCCB-NET-B2C" align="middle" src="<c:url value='/bank_img/bj.bmp'/>"/>   <input id="BOCO-NET-B2C" type="radio" name="yh" value="BOCO-NET-B2C"/>  <img name="BOCO-NET-B2C" align="middle" src="<c:url value='/bank_img/bcc.bmp'/>"/>   <input id="CIB-NET-B2C" type="radio" name="yh" value="CIB-NET-B2C"/>  <img name="CIB-NET-B2C" align="middle" src="<c:url value='/bank_img/cib.bmp'/>"/>   <input id="NJCB-NET-B2C" type="radio" name="yh" value="NJCB-NET-B2C"/>  <img name="NJCB-NET-B2C" align="middle" src="<c:url value='/bank_img/nanjing.bmp'/>"/>  </div>  <div style="margin-bottom: 20px;">  <input id="CMBC-NET-B2C" type="radio" name="yh" value="CMBC-NET-B2C"/>  <img name="CMBC-NET-B2C" align="middle" src="<c:url value='/bank_img/cmbc.bmp'/>"/>   <input id="CEB-NET-B2C" type="radio" name="yh" value="CEB-NET-B2C"/>  <img name="CEB-NET-B2C" align="middle" src="<c:url value='/bank_img/guangda.bmp'/>"/>   <input id="BOC-NET-B2C" type="radio" name="yh" value="BOC-NET-B2C"/>  <img name="BOC-NET-B2C" align="middle" src="<c:url value='/bank_img/bc.bmp'/>"/>   <input id="PINGANBANK-NET" type="radio" name="yh" value="PINGANBANK-NET"/>  <img name="PINGANBANK-NET" align="middle" src="<c:url value='/bank_img/pingan.bmp'/>"/>  </div>  <div style="margin-bottom: 20px;">  <input id="CBHB-NET-B2C" type="radio" name="yh" value="CBHB-NET-B2C"/>  <img name="CBHB-NET-B2C" align="middle" src="<c:url value='/bank_img/bh.bmp'/>"/>   <input id="HKBEA-NET-B2C" type="radio" name="yh" value="HKBEA-NET-B2C"/>  <img name="HKBEA-NET-B2C" align="middle" src="<c:url value='/bank_img/dy.bmp'/>"/>   <input id="NBCB-NET-B2C" type="radio" name="yh" value="NBCB-NET-B2C"/>  <img name="NBCB-NET-B2C" align="middle" src="<c:url value='/bank_img/ningbo.bmp'/>"/>   <input id="ECITIC-NET-B2C" type="radio" name="yh" value="ECITIC-NET-B2C"/>  <img name="ECITIC-NET-B2C" align="middle" src="<c:url value='/bank_img/zx.bmp'/>"/>  </div>  <div style="margin-bottom: 20px;">  <input id="SDB-NET-B2C" type="radio" name="yh" value="SDB-NET-B2C"/>  <img name="SDB-NET-B2C" align="middle" src="<c:url value='/bank_img/sfz.bmp'/>"/>   <input id="GDB-NET-B2C" type="radio" name="yh" value="GDB-NET-B2C"/>  <img name="GDB-NET-B2C" align="middle" src="<c:url value='/bank_img/gf.bmp'/>"/>   <input id="SHB-NET-B2C" type="radio" name="yh" value="SHB-NET-B2C"/>  <img name="SHB-NET-B2C" align="middle" src="<c:url value='/bank_img/sh.bmp'/>"/>   <input id="SPDB-NET-B2C" type="radio" name="yh" value="SPDB-NET-B2C"/>  <img name="SPDB-NET-B2C" align="middle" src="<c:url value='/bank_img/shpd.bmp'/>"/>  </div>  <div style="margin-bottom: 20px;">  <input id="POST-NET-B2C" type="radio" name="yh" value="POST-NET-B2C"/>  <img name="POST-NET-B2C" align="middle" src="<c:url value='/bank_img/post.bmp'/>"/>   <input id="BJRCB-NET-B2C" type="radio" name="yh" value="BJRCB-NET-B2C"/>  <img name="BJRCB-NET-B2C" align="middle" src="<c:url value='/bank_img/beijingnongshang.bmp'/>"/>   <input id="HXB-NET-B2C" type="radio" name="yh" value="HXB-NET-B2C"/>  <img name="HXB-NET-B2C" align="middle" src="<c:url value='/bank_img/hx.bmp'/>"/>   <input id="CZ-NET-B2C" type="radio" name="yh" value="CZ-NET-B2C"/>  <img name="CZ-NET-B2C" align="middle" src="<c:url value='/bank_img/zheshang.bmp'/>"/>  </div> </div> <div style="margin: 40px;">  <a href="javascript:void $('#form1').submit();">下一步</a> </div></div></form> </body></html>

payment.properties

p1_MerId=10001126856keyValue=69cl522AV6q613Ii4W6u8K6XuW8vM1N6bFgyv769220IuYe9u37N4y7rI4Plp8_Url=http/://localhost/:8080/goods/OrderServlet?method/=back

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持武林网。