javaweb在线支付功能实现代码

javaweb在线支付功能实现代码

本文实例为大家分享了javaweb在线支付功能的具体实现代码，供大家参考，具体内容如下

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);

}

}

2.用户确认提交的信息（confirm.jsp）

<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<%@taglib prefix="p" uri="http://itcast.cn/tag"%>

method="get">

type="hidden" name="p0_Cmd" value="${p0_Cmd }" />

type="hidden" name="p1_MerId" value="${p1_MerId }" />

type="hidden" name="p2_Order" value="${p2_Order }" />

type="hidden" name="p3_Amt" value="${p3_Amt }" />

type="hidden" name="p4_Cur" value="${p4_Cur }" />

type="hidden" name="p5_Pid" value="${p5_Pid }" />

type="hidden" name="p6_Pcat" value="${p6_Pcat }" />

type="hidden" name="p7_Pdesc" value="${p7_Pdesc }" />

type="hidden" name="p8_Url" value="${p8_Url }" />

type="hidden" name="p9_SAF" value="${p9_SAF }" />

type="hidden" name="pa_MP" value="${pa_MP }" />

name="pr_NeedResponse" value="${pr_NeedResponse }" />

type="hidden" name="hmac" value="${hmac }" />

value="确认支付" />

3.网站获得第三方支付的信息

package com.learning.web.servlet;

import java.io.IOException;

import java.util.ResourceBundle;

iVSDpRKdmport 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("

} 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);

}

}

文件：

merchantInfo.properties

p1_MerId=10001126856

keyValue=69cl522AV6q613Ii4W6u8K6XuW8vM1N6bFgyv769220IuYe9u37N4y7rI4Pl

responseURL=http://localhost:8080/onlinepay/servlet/PaymentResponse

工具类：PaymentUtil

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 < keyb.length; i++) {

k_ipad[i] = (byte) (keyb[i] ^ 0x36);

k_opad[i] = (byte) (keyb[i] ^ 0x5c);

}

MessageDigest md = null;

try {

md = MessageDigest.getInstance("MD5");

} catch (NoSuchAlgorithmException e) {

return null;

}

md.update(k_ipad);

md.update(value);

byte dg[] = md.digest();

md.reset();

md.update(k_opad);

md.update(dg, 0, 16);

dg = md.digest();

return toHex(dg);

}

public static String toHex(byte input[]) {

if (input == null)

return null;

StringBuffer output = new StringBuffer(input.length * 2);

for (int i = 0; i < input.length; i++) {

int current = input[i] & 0xff;

if (current < 16)

output.append("0");

output.append(Integer.toString(current, 16));

}

return output.toString();

}

/**

*

* @param args

* @param key

* @return

*/

public static String getHmac(String[] args, String key) {

if (args == null || args.length == 0) {

return (null);

}

StringBuffer str = new StringBuffer();

for (int i = 0; i < args.length; i++) {

str.append(args[i]);

}

return (hmacSign(str.toString(), key));

}

/**

* @param aValue

* @return

*/

public static String digest(String aValue) {

aValue = aValue.trim();

byte value[];

try {

value = aValue.getBytes(encodingCharset);

} catch (UnsupportedEncodingException e) {

value = aValue.getBytes();

}

MessageDigest md = null;

try {

md = MessageDigest.getInstance("SHA");

} catch (NoSuchAlgorithmException e) {

e.printStackTrace();

return null;

}

return toHex(md.digest(value));

}

// public static void main(String[] args) {

// System.out.println(hmacSign("AnnulCard1000043252120080620160450.0http://localhost/SZXpro/callback.asp杩?4564868265473632445648682654736324511","8UPp0KE8sq73zVP370vko7C39403rtK1YwX40Td6irH216036H27Eb12792t"));

// }

}

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