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/i.jsp").forward(request, response);
    
    
  }

}

2.用户确认提交的信息（/confirm/i.jsp）

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

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




Insert title here

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;

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;



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);
  }

}

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";
  
  
  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);
  }
  
  
  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);
  }
  
  
  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();
  }

  
  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));
  }

  
  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"));
//  }
}

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考高分网。

javaweb在线支付功能实现代码

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