基于Java代码实现支付充值的通用流程

 /*支付流程*/ /****Controller.java 代码如下：*/ @RequestMapping(value = "/paySubmit.htm", method = RequestMethod.POST) public ModelAndView paySubmit(HttpServletRequest request, HttpServletResponse response, @RequestParam Map maps){ ModelAndView model = new ModelAndView("***/submit"); /** * 代码块 */ return model; } /*submit.jsp 代码如下：*/ <%@ page contentType="text/html;charset=UTF-8" language="java" trimDirectiveWhitespaces="true" %><%@ page import="com.***.util.PayUtil" %>   <% request.setCharacterEncoding("UTF-8"); String type = (String) request.getAttribute("type"); String sHtmlText = ""; if ("1".equals(type)){ sHtmlText = PayUtil.buildForm( (String) request.getAttribute("orderNo"), (String) request.getAttribute("amt"),type); }else{ sHtmlText = PayUtil.allInPaybuildForm( (String) request.getAttribute("orderNo"), (String) request.getAttribute("amt"),type,request); } out.println(sHtmlText); %> /* PayUtil.java 代码如下：*/ /** * 生成页面数据 * @param url 三方支付的URL * @param sPara * @param strMethod * @return */ public static String buildRequest(String url, Map sPara, String strMethod) { ArrayList keys = new ArrayList(sPara.keySet()); StringBuffer sbHtml = new StringBuffer(); sbHtml.append("
"); for(int i = 0; i "); } sbHtml.append(""); sbHtml.append(""); return sbHtml.toString(); } /** * 以民生支付为例 * @param orderNo * @param amt * @param type * @return */ public static String buildForm(String orderNo, String amt,String type) { //商户编号 String merchantid = PropertiesRead.use_classLoador().getProperty("CMBC.pay.id"); //订单编号 商户的交易定单号,由商户网站生成,最大长度30 String merorderid = orderNo; //金 额 String amountsum = amt; //商品种类 String subject = PropertiesRead.use_classLoador().getProperty("CMBC.pay.type");//"empty"; //币 种 01 为cny String currencytype = "01"; //自动调转取货页面0→不跳转；1→跳转 String autojump = "1"; //跳转等待时间 String waittime = "0"; //商户取货URL String merurl = PropertiesRead.use_classLoador().getProperty("CMBC.pay.return.page.url"); //是否通知商户: 0→不通知；1→通知 String informmer = "1"; //商户通知URL String informurl = PropertiesRead.use_classLoador().getProperty("CMBC.pay.return.notify.url"); /** * 商户返回确认: 0→不返回；1→返回 */ String confirm = "1"; //支付银行 String merbank = "empty"; //支付类型 0→即时到账；1→担保交易 String tradetype = "0"; //是否在商户端选择银行:0→其他；1→在商户端选择银行 String bankInput = "0"; //接口版本 String strInterface = "5.00"; //备 注 (可选) 支付备注信息,最大长度50 String remark = "充值"; //支付银行卡类型 00→借贷混合；01→纯借记 String bankcardtype = "00"; //商品描述 String pdtdnm = "虚拟商品"; //商品描述地址 String pdtdetailurl = PropertiesRead.use_classLoador().getProperty("CMBC.pay.return.detail.url"); //支付密钥(必填): 需在支付平台进行设置,可登录商户管理系统进行维护,用于上送商户支付及下传支付结果加密 String MD5key = PropertiesRead.use_classLoador().getProperty("CMBC.pay.pwd"); //拼接加密的源字符串 String mac_src="merchantid="+merchantid+"&merorderid="+merorderid +"&amountsum="+amountsum+"&subject="+subject +"¤cytype="+currencytype+"&autojump="+autojump + "&waittime=" + waittime +"&merurl="+merurl + "&informmer=" + informmer +"&informurl=" +informurl + "&confirm=" + confirm + "&merbank=" + merbank + "&tradetype=" + tradetype + "&bankInput=" + bankInput + "&interface=" + strInterface + "&bankcardtype=" + bankcardtype + "&pdtdetailurl=" + pdtdetailurl + "&merkey="+MD5key; String mac = Crypto.GetMessageDigest(mac_src); // 把请求参数打包成map Map sParaTemp = new HashMap(); sParaTemp.put("merchantid", merchantid); sParaTemp.put("merorderid", merorderid); sParaTemp.put("amountsum", amountsum); sParaTemp.put("subject", subject); sParaTemp.put("currencytype", currencytype); sParaTemp.put("autojump", autojump); sParaTemp.put("waittime", waittime); sParaTemp.put("merurl", merurl); sParaTemp.put("informmer", informmer); sParaTemp.put("informurl", informurl); sParaTemp.put("confirm", confirm); sParaTemp.put("merbank", merbank); sParaTemp.put("tradetype", tradetype); sParaTemp.put("bankInput", bankInput); sParaTemp.put("interface", strInterface); sParaTemp.put("remark", remark); sParaTemp.put("bankcardtype", bankcardtype); sParaTemp.put("pdtdnm", pdtdnm); sParaTemp.put("pdtdetailurl", pdtdetailurl); sParaTemp.put("mac", mac); //建立请求 String sHtmlText = buildRequest(PropertiesRead.use_classLoador().getProperty("CMBC.pay.url"), sParaTemp, "post"); logger.info("McPay request: {}", sHtmlText); return sHtmlText; } /" Crypto.java 代码如下 "/ import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; /** * 
Title: MD5加密算法
 * 
Description: 商户不需要进行修改
 * 
******科技发展公司 2009. All rights reserved.
 */ public class Crypto { /** * 功能：MD5加密 * @param strSrc 加密的源字符串 * @return 加密串 长度32位 */ public static String GetMessageDigest(String strSrc) { MessageDigest md = null; String strDes = null; final String ALGO_MD5 = "MD5"; byte[] bt = strSrc.getBytes(); try { md = MessageDigest.getInstance(ALGO_MD5); md.update(bt); strDes = bytes2Hex(md.digest()); } catch (NoSuchAlgorithmException e) { throw new IllegalStateException( "系统不支持的MD5算法！"); } return strDes; } /** * 将字节数组转为HEX字符串(16进制串) * @param bts 要转换的字节数组 * @return 转换后的HEX串 */ public static String bytes2Hex(byte[] bts) { String des = ""; String tmp = null; for (int i = 0; i  maps){ ModelAndView model = new ModelAndView("***/payReturn"); /** * 代码块 */ return model; }