java服务器端微信、支付宝支付和退款功能

 Map map = new HashMap(); switch (record.getCheckType()) { case 10: map = Alipay.prePay(record.getAmount(),out_trade_no); return ResponseData.ok(map); case 20: map = WXPay.prePay(record.getAmount(),out_trade_no); return ResponseData.ok(map); }

 public class WXPay { private static String url = String.format("https://api.mch.weixin.qq.com/pay/unifiedorder"); //统一下单 public static Map prePay(BigDecimal amount,String out_trade_no){ String entity = genProductArgs(amount,out_trade_no); byte[] buf = Util.httpPost(url, entity); String content = new String(buf); Map xml=decodeXml(content); return getRep(xml); } private static Map getRep(Map xml) { Random random = new Random(); List signParams = new LinkedList(); signParams.add(new BasicNameValuePair("appid", Constants.APP_ID_WX)); signParams.add(new BasicNameValuePair("noncestr", MD5.getMessageDigest(String.valueOf(random.nextInt(10000)).getBytes()))); // signParams.add(new BasicNameValuePair("package", "prepay_id="+xml.get("prepay_id"))); signParams.add(new BasicNameValuePair("package", "Sign=WXPay")); signParams.add(new BasicNameValuePair("partnerid", Constants.MCH_ID)); signParams.add(new BasicNameValuePair("prepayid", xml.get("prepay_id"))); signParams.add(new BasicNameValuePair("timestamp", String.valueOf(System.currentTimeMillis() / 1000))); xml.put("sign", genPackageSign(signParams)); for (int i = 0; i  removeElements(Map xml) { xml.remove("appid"); xml.remove("mch_id"); xml.remove("nonce_str"); xml.remove("trade_type"); //xml.remove("partnerid"); xml.remove("prepay_id"); xml.remove("result_code"); xml.remove("return_code"); xml.remove("return_msg"); return xml; } private static String genProductArgs(BigDecimal amount,String out_trade_no) { StringBuffer xml = new StringBuffer(); String nonceStr = genNonceStr(); xml.append(""); List packageParams = new LinkedList(); packageParams.add(new BasicNameValuePair("appid", Constants.APP_ID_WX)); packageParams.add(new BasicNameValuePair("body", "APP pay test")); packageParams.add(new BasicNameValuePair("mch_id", Constants.MCH_ID)); packageParams.add(new BasicNameValuePair("nonce_str", nonceStr)); packageParams.add(new BasicNameValuePair("notify_url", "填写服务器的支付回调路径")); packageParams.add(new BasicNameValuePair("out_trade_no",out_trade_no)); packageParams.add(new BasicNameValuePair("spbill_create_ip","127.0.0.1")); packageParams.add(new BasicNameValuePair("total_fee", String.valueOf(amount.movePointRight(2)))); // packageParams.add(new BasicNameValuePair("total_fee", "1")); packageParams.add(new BasicNameValuePair("trade_type", "APP")); String sign = genPackageSign(packageParams); packageParams.add(new BasicNameValuePair("sign", sign)); String xmlstring =toXml(packageParams); return xmlstring; } public static String genNonceStr() { Random random = new Random(); return MD5.getMessageDigest(String.valueOf(random.nextInt(10000)).getBytes()); } public static String genPackageSign(List params) { StringBuilder sb = new StringBuilder(); for (int i = 0; i "); for (int i = 0; i "); sb.append(params.get(i).getValue()); sb.append(""); } sb.append(""); return sb.toString(); } }

 public class Alipay { public static Map prePay(BigDecimal payAbleAmount,String out_trade_no){ //String orderInfo = getOrderInfo("订单付款", "订单付款",out_trade_no,"0.01"); String orderInfo = getOrderInfo("订单付款", "订单付款",out_trade_no,String.valueOf(payAbleAmount)); String sign = sign(orderInfo); try { /** * 仅需对sign 做URL编码 */ sign = URLEncoder.encode(sign, "UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } /** * 完整的符合支付宝参数规范的订单信息 */ final String payInfo = orderInfo + "&sign=\"" + sign + "\"&" + getSignType(); Map map = new HashMap(); map.put("payInfo", payInfo); return map; } private static String getOrderInfo(String subject, String body,String out_trade_no,String price) { // 签约合作者身份ID String orderInfo = "partner=" + "\"" + Constants.PARTNER + "\""; // 签约卖家支付宝账号 orderInfo += "&seller_id=" + "\"" + Constants.SELLER + "\""; // 商户网站唯一订单号 orderInfo += "&out_trade_no=" + "\"" + out_trade_no + "\""; // 商品名称 orderInfo += "&subject=" + "\"" + subject + "\""; // 商品详情 orderInfo += "&body=" + "\"" + body + "\""; // 商品金额 orderInfo += "&total_fee=" + "\"" + price + "\""; // 服务器异步通知页面路径 orderInfo += "¬ify_url=" + "\"" + "填写服务器的支付回调路径" + "\""; // 服务接口名称， 固定值 orderInfo += "&service=\"mobile.securitypay.pay\""; // 支付类型， 固定值 orderInfo += "&payment_type=\"1\""; // 参数编码， 固定值 orderInfo += "&_input_charset=\"utf-8\""; // 设置未付款交易的超时时间 // 默认30分钟，一旦超时，该笔交易就会自动被关闭。 // 取值范围：1m～15d。 // m-分钟，h-小时，d-天，1c-当天（无论交易何时创建，都在0点关闭）。 // 该参数数值不接受小数点，如1.5h，可转换为90m。 orderInfo += "&it_b_pay=\"30m\""; // extern_token为经过快登授权获取到的alipay_open_id,带上此参数用户将使用授权的账户进行支付 // orderInfo += "&extern_token=" + "\"" + extern_token + "\""; // 支付宝处理完请求后，当前页面跳转到商户指定页面的路径，可空 orderInfo += "&return_url=\"m.alipay.com\""; // 调用银行卡支付，需配置此参数，参与签名， 固定值 （需要签约《无线银行卡快捷支付》才能使用） // orderInfo += "&paymethod=\"expressGateway\""; return orderInfo; } private static String sign(String content) { return SignUtils.sign(content, Constants.RSA_PRIVATE); } private static String getSignType() { return "sign_type=\"RSA\""; } }

 String strResponse = null; AlipayTradeRefundResponse response = null; try { AlipayClient alipayClient = new DefaultAlipayClient(url,Constants.APPID_ALIPAY,Constants.RSA_PRIVATE,"json","utf-8",Constants.RSA_PUBLIC); AlipayTradeRefundRequest request = new AlipayTradeRefundRequest(); RefundInfo alidata = new RefundInfo(); alidata.setOut_trade_no(out_trade_no); alidata.setRefund_amount(refund_amount); request.setBizContent(JSON.toJSONString(alidata)); response = alipayClient.sdkExecute(request); if (response.isSuccess()) { strResponse="退款成功"; } else { strResponse="退款失败"; } return strResponse; } catch (Exception e) { strResponse="退款出错"; } return strResponse;

 public class WXRefund { private static final String url = "https://api.mch.weixin.qq.com/secapi/pay/refund"; /** * 微信退款 * @param out_trade_no 商户订单号 * @param total_fee 总金额 * @param refund_fee 退款金额 * @return */ public static String doRefund(String out_trade_no,int total_fee,int refund_fee) { InputStream instream = null; KeyStore keyStore = null; CloseableHttpResponse response = null; CloseableHttpClient httpclient = null; StringBuilder text = new StringBuilder(); String key = Constants.MCH_ID; try { /** * 注意PKCS12证书 是从微信商户平台-》账户设置-》 API安全 中下载的 */ keyStore = KeyStore.getInstance("PKCS12"); instream = WXRefund.class.getResourceAsStream("/apiclient_cert.p12");//P12文件 /** * 此处要改 */ keyStore.load(instream, key.toCharArray());// 这里写密码..默认是MCHID /** * 此处要改 */ SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore, key.toCharArray())// 这里也是写密码的 .build(); // Allow TLSv1 protocol only SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext, new String[] { "TLSv1" }, null, SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER); httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build(); //=======================证书配置完成======================== HttpPost httpPost = new HttpPost(url); String xmlstring = getRefunArgs(out_trade_no,total_fee,refund_fee); httpPost.setEntity(new StringEntity(xmlstring)); httpPost.setHeader("Accept", "application/json"); httpPost.setHeader("Content-type", "application/json"); response = httpclient.execute(httpPost); HttpEntity entity = response.getEntity(); if (entity != null) { BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(entity.getContent())); String str; while ((str = bufferedReader.readLine()) != null) { text.append(str); } } EntityUtils.consume(entity); }catch(Exception e){ }finally { if(instream != null){ try { instream.close(); } catch (IOException e) { e.printStackTrace(); } } if(response != null){ try { response.close(); } catch (IOException e) { e.printStackTrace(); } } if(httpclient != null){ try { httpclient.close(); } catch (IOException e) { e.printStackTrace(); } } } Map map = WXPay.decodeXml(text.toString()); String return_msg = map.get("return_msg"); if ("OK".equals(return_msg) && "SUCCESS".equals(map.get("return_code"))) { return "退款成功"; } return return_msg; } //设置请求参数的值 private static String getRefunArgs(String out_trade_no,int total_fee,int refund_fee) { String nonce_str = WXPay.genNonceStr(); List packageParams = new LinkedList(); packageParams.add(new BasicNameValuePair("appid", Constants.APP_ID_WX)); packageParams.add(new BasicNameValuePair("mch_id", Constants.MCH_ID)); packageParams.add(new BasicNameValuePair("nonce_str", nonce_str)); packageParams.add(new BasicNameValuePair("op_user_id", Constants.MCH_ID)); packageParams.add(new BasicNameValuePair("out_refund_no",out_trade_no)); packageParams.add(new BasicNameValuePair("out_trade_no",out_trade_no)); packageParams.add(new BasicNameValuePair("refund_fee", String.valueOf(refund_fee))); packageParams.add(new BasicNameValuePair("total_fee", String.valueOf(total_fee))); String sign = WXPay.genPackageSign(packageParams); packageParams.add(new BasicNameValuePair("sign", sign)); return WXPay.toXml(packageParams); } }