<!-- 支付寶支付 -->
		<dependency>
			<groupId>com.alipay.sdk</groupId>
			<artifactId>alipay-sdk-java</artifactId>
			<version>3.7.26.ALL</version>
		</dependency>

public class AlipayConfig {
	// ↓↓↓↓↓↓↓↓↓↓請在這里配置您的基本信息↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓

	// 應用ID,您的APPID，收款賬號既是您的APPID對應支付寶賬號
	public static String app_id = "";

	// 商戶私鑰，您的PKCS8格式RSA2私鑰
	public static String merchant_private_key = "";

	// 支付寶公鑰,查看地址：https://openhome.alipay.com/platform/keyManage.htm 對應APPID下的支付寶公鑰。
	public static String alipay_public_key = "";

	// 服務器異步通知頁面路徑 需http://格式的完整路徑，不能加?id=123這類自定義參數(shù)，必須外網(wǎng)可以正常訪問
	
	// 這里需要配置支付寶回調(diào)的后端路徑，必須要外網(wǎng)可以訪問
	public static String notify_url = "http://localhost:8080/alipay.trade.page.pay-JAVA-UTF-8/notify_url.jsp"; 
	
	// 頁面跳轉(zhuǎn)同步通知頁面路徑 需http://格式的完整路徑，不能加?id=123這類自定義參數(shù)，必須外網(wǎng)可以正常訪問
	
	// TODO 這里需要配置支付寶回調(diào)的前端路徑，必須要外網(wǎng)可以訪問
	public static String return_url = "http://localhost:8080/alipay.trade.page.pay-JAVA-UTF-8/return_url.jsp";	

	// 簽名方式
	public static String sign_type = "RSA2";

	// 字符編碼格式
	public static String charset = "UTF-8";

	// 支付寶網(wǎng)關(guān)
	public static String gatewayUrl = "https://openapi.alipaydev.com/gateway.do";

	// 日志路徑
	public static String log_path = "C:\\";

	// ↑↑↑↑↑↑↑↑↑↑請在這里配置您的基本信息↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑

	/**
	 * 寫日志，方便測試（看網(wǎng)站需求，也可以改成把記錄存入數(shù)據(jù)庫）
	 * 
	 * @param sWord 要寫入日志里的文本內(nèi)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();
				}
			}
		}
	}
}

public interface AlipayService {

  /**
   * 發(fā)起支付
   * @param outTradeNo  訂單編號（唯一）
   * @param totalAmount  訂單價格
   * @param subject    商品名稱
   */
  String goPay(String outTradeNo,BigDecimal totalAmount,String subject) throws Exception;
  
  /**
   * 交易查詢
   * @param outTradeNo 訂單編號（唯一）
   */
  String query(String outTradeNo) throws AlipayApiException;
  
  /**
   * 交易關(guān)閉
   * @param outTradeNo訂單編號（唯一）
   */
  String close(String outTradeNo) throws AlipayApiException;
}

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，支付成功頁面 */
		alipayRequest.setReturnUrl(AlipayConfig.return_url);
		/** 異步通知，支付完成后，需要進行的異步處理 */
		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\"}");

		/** 轉(zhuǎn)換格式 */
		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();
		/** 請求接口 */
		alipayRequest.setBizContent("{\"out_trade_no\":\"" + outTradeNo + "\"," + "\"trade_no\":\"" + "" + "\"}");
		/** 轉(zhuǎn)換格式 */
		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;
	}
}

public class AlipayController {

  @Autowired
  private AlipayService alipayService;
  
  /**
   * 訂單支付
   */
  @GetMapping("goPay")
  public Map<Object, Object> goPay() throws Exception{
    /** 模仿數(shù)據(jù)庫，從后臺調(diào)數(shù)據(jù)*/
    String outTradeNo = "202101010001";
    BigDecimaltotalAmount = new BigDecimal(10000);
    String subject = "蘋果12";
    
    String pay = alipayService.goPay(outTradeNo, totalAmount, subject);
    
    Map<Object, Object> pays = new HashMap<>();
    pays.put("pay", pay);
    
    return pays;
  }
  
  /**
   * 交易查詢
   */
  @PostMapping("aipayQuery")
  public Result<Object> alipayQuery() throws Exception{
    /**調(diào)取支付訂單號*/
    String outTradeNo = "13123";
    
    String query = alipayService.query(outTradeNo);
    
    Object json = JSONObject.toJSON(query);
    
    /*JSONObject jObject = new JSONObject();
    jObject.get(query);*/
    return Result.success(json);
  }
  
  /**
   * 交易關(guān)閉
   * @throws AlipayApiException 
   */
  @PostMapping("alipayclose")
  public Result<Object> alipaycolse() throws AlipayApiException{
    
    /** 調(diào)取數(shù)據(jù)*/
    String outTradeNo = "13123";
    
    String close = alipayService.close(outTradeNo);
    
    return Result.success(close);
  }
  /**
	 * 異步通知支付結(jié)果
	 * 
	 * @param request
	 * @return String
	 * @throws AlipayApiException
	 * @throws ParseException
	 */
	@PostMapping("/callBack")
	public String alipayNotify(HttpServletRequest request) throws Exception {

		// 獲取支付寶的請求信息
		Map<String, String> map = new HashMap<>();
		Map<String, String[]> requestParams = request.getParameterMap();
		if(requestParams.isEmpty()) {
			return "failure";
		}
		// 將 Map<String,String[]> 轉(zhuǎn)為 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);
		}
		// 驗簽
		boolean signVerified = AlipaySignature.rsaCheckV1(map, AlipayConfig.alipay_public_key, AlipayConfig.charset,
				AlipayConfig.sign_type);
		// 驗簽通過
		if (signVerified) {
			//支付成功后進行操作
		}
		return "failure";
	}
}