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 class="divContent">
 <span class="spanPrice">支付金额：</span><span class="price_t">¥${order.total }</span>
 <span class="spanOid">编号：${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 class="divBank">
 <div class="divText">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();" class="linkNext">下一步</a>
 </div>
</div>
</form>
 </body>
</html>

payment.properties

p1_MerId=10001126856
keyValue=69cl522AV6q613Ii4W6u8K6XuW8vM1N6bFgyv769220IuYe9u37N4y7rI4Pl
p8_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服务器之家。