j2ee 版本 支付

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8" 
	contentType="text/html; charset=utf-8" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>


  
    
    
  
  
  
	
	

		商品订单号：

		支付金额：

		选择银行：

		中国农业银行
		建设银行

		
	
  

PaymentUtil.java

package com.kdyzm.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"));
//	}
}
 
  
PayServlet.java
 
  
package com.kdyzm.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.kdyzm.utils.PaymentUtil;
//该Servlet处理支付请求并进行重定向
public class PayServlet extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doPost(request, response);
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		String 	p0_Cmd="Buy",
				p1_MerId="自己的商品编号",
				p2_Order=request.getParameter("p2_Order"),
				p3_Amt=request.getParameter("p3_Amt"),
				p4_Cur="CNY",
				p5_Pid="",
				p6_Pcat="",
				p7_Pdesc="",
				p8_Url="http://localhost:8080/day21_2_pay/backServlet",
				p9_SAF="",
				pa_MP="",
				pd_FrpId=request.getParameter("pd_FrpId"),
				pr_NeedResponse="1";
		String keyValue="自己的key";
		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);
		String url="https://www.yeepay.com/app-merchant-proxy/node?"+
		"&p0_Cmd="+p0_Cmd+
		"&p1_MerId="+p1_MerId+
		"&p2_Order="+p2_Order+
		"&p3_Amt="+p3_Amt+
		"&p4_Cur="+p4_Cur+
		"&p5_Pid="+p5_Pid+
		"&p6_Pcat="+p6_Pcat+
		"&p7_Pdesc="+p7_Pdesc+
		"&p8_Url="+p8_Url+
		"&p9_SAF="+p9_SAF+
		"&pa_MP="+pa_MP+
		"&pd_FrpId="+pd_FrpId+
		"&pr_NeedResponse="+pr_NeedResponse+
		"&hmac="+hmac;
		response.sendRedirect(url);
	}
}
 
  
BackServlet.java
 
  
package com.kdyzm.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//显示支付结果的页面
public class BackServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doPost(request, response);
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		String r1_Code=request.getParameter("r1_Code");
		PrintWriter pw=response.getWriter();
		if("1".equals(r1_Code))
		{
			String p1_MerId=request.getParameter("p1_MerId");
			String r3_Amt=request.getParameter("r3_Amt");
			String r6_Order=request.getParameter("r6_Order");
			String rp_PayDate=request.getParameter("rp_PayDate");
			pw.println("支付成功！
"
					+ "商户编号："+p1_MerId+"
"
					+ "支付金额："+r3_Amt+"
"
					+"商户订单号："+r6_Order+"
"
					+"支付成功时间："+rp_PayDate);
		}
		else
		{
			pw.println("支付失败！");
		}
	}

}