一：異步通知是支付寶回調(diào)商戶的服務(wù)器，所以這個地址需要通過外網(wǎng)訪問，在真實項目中都會有對應(yīng)的服務(wù)器，但是在測試中只有使用內(nèi)網(wǎng)穿透工具

推薦使用NATAPP-內(nèi)網(wǎng)穿透 基于ngrok的國內(nèi)高速內(nèi)網(wǎng)映射工具

配置好內(nèi)網(wǎng)穿透之后不要忘記在常量類中配置異步返回的地址

二：異步通知

@RequestMapping("/alpay")
@ResponseBody
public String alpay(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) {// 獲取支付寶POST過來反饋信息Map<String, String> params = new HashMap<>();Map<String, String[]> requestParams = httpServletRequest.getParameterMap();for (String name : requestParams.keySet()) {String[] values = requestParams.get( name );StringBuilder valueStr = new StringBuilder();for (String value : values) {valueStr.append( value );}params.put( name, valueStr.toString() );}// 調(diào)用支付寶SDK進行驗簽boolean verifyResult = false;try {verifyResult = AlipaySignature.rsaCheckV1( params, constant.PublicKey, "UTF-8", "RSA2" );} catch (Exception e) {e.printStackTrace();}// 驗簽通過，則處理業(yè)務(wù)邏輯if (verifyResult) {System.out.println( "異步驗證通過" );//支付String tradeStatus = params.get( "trade_status" );if (tradeStatus.equals( "TRADE_SUCCESS" )) {// 交易支付成功，處理支付成功的邏輯String orderId = params.get( "out_trade_no" );String tradeNo = params.get( "trade_no" );String total_amount = params.get( "total_amount" );System.out.println( "訂單id：" + orderId );System.out.println( "流水號:" + tradeNo );System.out.println( "支付金額:" + total_amount );
//根據(jù)訂單號調(diào)用查詢接口，查詢支付信息AlipayTradeQueryResponse query = query( params.get( "out_trade_no" ) );
//查詢支付信息，獲取支付金額和訂單金額是否一致，一致就就修改訂單狀態(tài)String totalAmount = query.getTotalAmount();if (totalAmount.equals( total_amount )) {boolean b = sysOrdersService.updateState( orderId );System.out.println( "修改數(shù)據(jù)庫訂單狀態(tài)是否成功：" + b );}}}return "success";} else {// 驗簽失敗，記錄日志或進行其他后續(xù)處理System.out.println( "異步驗證失敗" );return "failure";}
}

三：查詢交易信息接口

 /*** 查詢交易信息** @param outTradeNo* @return*/public static AlipayTradeQueryResponse query(String outTradeNo) {try {AlipayClient alipayClient = new DefaultAlipayClient(constant.serverUrl,constant.appId,constant.privateKey,constant.format,constant.charset,constant.PublicKey,constant.signType );AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();JSONObject bizContent = new JSONObject();bizContent.put( "out_trade_no", outTradeNo );request.setBizContent( bizContent.toString() );AlipayTradeQueryResponse response = alipayClient.execute( request );if (response.isSuccess()) {System.out.println( "調(diào)用查詢接口成功" );return response;} else {System.out.println( "調(diào)用查詢接口失敗" );}} catch (AlipayApiException e) {e.printStackTrace();}return null;}

四：測試

查看支付寶是否調(diào)用異步通知接口，數(shù)據(jù)庫狀態(tài)是否修改

新建訂單

控制臺輸出

數(shù)據(jù)庫

狀態(tài)修改成功