Java中Spring Boot支付宝扫码支付及支付回调的实现代码
前言:最近开发支付宝支付功能,总结一下做个分享
官方文档:https://opendocs.alipay.com/apis
支付宝沙箱地址: https://openhome.alipay.com/platform/appDaily.htm?tab=info
支付宝支付流程:
准备工作:获取支付宝沙箱数据(APPID,支付宝网关,RSA2秘,沙箱支付账号等)
集成SpringBoot,使用Java代码发起支付请求
支付宝收到支付请求后,返回HTML代码片段,用于前端展示二维码
扫码支付成功后,支付宝发送同步、异步通知请求,同步、异步通知路径可在配置文件中进行配置
收到异步通知结果后,进行验签,验签通过,返回成功信息通知支付宝不在进行异步通知
此时支付宝支付流程完成,调用支付宝查询接口,确认支付成功
一、获取支付宝沙箱数据
打开上述沙箱地址,获取沙箱配置,查看下图信息
二、集成SpringBoot,使用Java代码发起支付请求
1、在pom.xml文件添加支付宝依赖
<!-- 支付宝支付 --> <dependency> <groupId>com.alipay.sdk</groupId> <artifactId>alipay-sdk-java</artifactId> <version>3.7.26.ALL</version> </dependency>
2、在项目中新建一个支付宝工具类
public class AlipayConfig { // ↓↓↓↓↓↓↓↓↓↓请在这里配置您的基本信息↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓ // 应用ID,您的APPID,收款账号既是您的APPID对应支付宝账号 public static String app_id = ""; // 商户私钥,您的PKCS8格式RSA2私钥 public static String merchant_private_key = ""; // 支付宝公钥,查看地址:https://openhome.alipay.com/platform/keyManage.htm 对应APPID下的支付宝公钥。 public static String alipay_public_key = ""; // 服务器异步通知页面路径 需http://格式的完整路径,不能加?id=123这类自定义参数,必须外网可以正常访问 // 这里需要配置支付宝回调的后端路径,必须要外网可以访问 public static String notify_url = "http://localhost:8080/alipay.trade.page.pay-JAVA-UTF-8/notify_url.jsp"; // 页面跳转同步通知页面路径 需http://格式的完整路径,不能加?id=123这类自定义参数,必须外网可以正常访问 // TODO 这里需要配置支付宝回调的前端路径,必须要外网可以访问 public static String return_url = "http://localhost:8080/alipay.trade.page.pay-JAVA-UTF-8/return_url.jsp"; // 签名方式 public static String sign_type = "RSA2"; // 字符编码格式 public static String charset = "UTF-8"; // 支付宝网关 public static String gatewayUrl = "https://openapi.alipaydev.com/gateway.do"; // 日志路径 public static String log_path = "C:\\"; // ↑↑↑↑↑↑↑↑↑↑请在这里配置您的基本信息↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑ /** * 写日志,方便测试(看网站需求,也可以改成把记录存入数据库) * * @param sWord 要写入日志里的文本内容 */ public static void logResult(String sWord) { FileWriter writer = null; try { writer = new FileWriter(log_path + "alipay_log_" + System.currentTimeMillis() + ".txt"); writer.write(sWord); } catch (Exception e) { e.printStackTrace(); } finally { if (writer != null) { try { writer.close(); } catch (IOException e) { e.printStackTrace(); } } } } }
3、定义Service
public interface AlipayService { /** * 发起支付 * @param outTradeNo 订单编号(唯一) * @param totalAmount 订单价格 * @param subject 商品名称 */ String goPay(String outTradeNo,BigDecimal totalAmount,String subject) throws Exception; /** * 交易查询 * @param outTradeNo 订单编号(唯一) */ String query(String outTradeNo) throws AlipayApiException; /** * 交易关闭 * @param outTradeNo订单编号(唯一) */ String close(String outTradeNo) throws AlipayApiException; }
4、实现ServiceImpl,发起支付请求,交易查询等
public class AlipayServiceImpl implements AlipayService { @Autowired private RechargeDetailService rechargeDetailService; @Override public String goPay(String outTradeNo, BigDecimal totalAmount, String subject) throws Exception { AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type); AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest(); /** 同步通知,支付完成后,支付成功页面 */ alipayRequest.setReturnUrl(AlipayConfig.return_url); /** 异步通知,支付完成后,需要进行的异步处理 */ alipayRequest.setNotifyUrl(AlipayConfig.notify_url); alipayRequest.setBizContent("{\"out_trade_no\":\"" + outTradeNo + "\"," + "\"total_amount\":\"" + totalAmount + "\"," + "\"subject\":\"" + subject + "\"," + "\"body\":\"付款\"," + "\"timeout_express\":\"15m\"," + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}"); /** 转换格式 */ String form = ""; form = alipayClient.pageExecute(alipayRequest).getBody(); return form; } @Override public String query(String outTradeNo) throws AlipayApiException { AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type); AlipayTradeQueryRequest alipayRequest = new AlipayTradeQueryRequest(); /** 请求接口 */ alipayRequest.setBizContent("{\"out_trade_no\":\"" + outTradeNo + "\"," + "\"trade_no\":\"" + "" + "\"}"); /** 转换格式 */ String result = alipayClient.execute(alipayRequest).getBody(); return result; } @Override public String close(String outTradeNo) throws AlipayApiException { AlipayTradeCloseRequest alipayRequest = new AlipayTradeCloseRequest(); AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type); alipayRequest.setBizContent("{\"out_trade_no\":\"" + outTradeNo + "\"," + "\"trade_no\":\"" + "" + "\"}"); String result = alipayClient.execute(alipayRequest).getBody(); return result; } }
5、创建支付宝controller
public class AlipayController { @Autowired private AlipayService alipayService; /** * 订单支付 */ @GetMapping("goPay") public Map<Object, Object> goPay() throws Exception{ /** 模仿数据库,从后台调数据*/ String outTradeNo = "202101010001"; BigDecimaltotalAmount = new BigDecimal(10000); String subject = "苹果12"; String pay = alipayService.goPay(outTradeNo, totalAmount, subject); Map<Object, Object> pays = new HashMap<>(); pays.put("pay", pay); return pays; } /** * 交易查询 */ @PostMapping("aipayQuery") public Result<Object> alipayQuery() throws Exception{ /**调取支付订单号*/ String outTradeNo = "13123"; String query = alipayService.query(outTradeNo); Object json = JSONObject.toJSON(query); /*JSONObject jObject = new JSONObject(); jObject.get(query);*/ return Result.success(json); } /** * 交易关闭 * @throws AlipayApiException */ @PostMapping("alipayclose") public Result<Object> alipaycolse() throws AlipayApiException{ /** 调取数据*/ String outTradeNo = "13123"; String close = alipayService.close(outTradeNo); return Result.success(close); } /** * 异步通知支付结果 * * @param request * @return String * @throws AlipayApiException * @throws ParseException */ @PostMapping("/callBack") public String alipayNotify(HttpServletRequest request) throws Exception { // 获取支付宝的请求信息 Map<String, String> map = new HashMap<>(); Map<String, String[]> requestParams = request.getParameterMap(); if(requestParams.isEmpty()) { return "failure"; } // 将 Map<String,String[]> 转为 Map<String,String> for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) { String name = iter.next(); String[] values = requestParams.get(name); String valueStr = ""; for (int i = 0; i < values.length; i++) { valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ","; } map.put(name, valueStr); } // 验签 boolean signVerified = AlipaySignature.rsaCheckV1(map, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); // 验签通过 if (signVerified) { //支付成功后进行操作 } return "failure"; } }
到此SpringBoot整合支付宝扫码支付,就完成了
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