SpringBoot 支付宝付款接口类、支付异步回调函数模板

1.付款接口类

1.1.引入Maven依赖

<dependency>
    <groupId>com.alipay.sdk</groupId>
    <artifactId>alipay-sdk-java</artifactId>
    <version>4.38.221.ALL</version>
</dependency>

1.2.将下面代码保存为AlipayTemplate.java

@Configuration
@ConfigurationProperties("alipay")
@Data
public class AlipayTemplate {
    private String notifyUrl="";
    private String returnUrl="";

    private String serverUrl;//网关地址
    private String appId;//应用ID
    private String privateKey;//私钥
    private String format="json";
    private String charset="UTF-8";
    private String alipayPublicKey;//公钥
    private String signType="RSA2";

    public String pay(String outTradeNo, BigDecimal totalAmount,String subject) throws AlipayApiException {
        AlipayClient alipayClient = new DefaultAlipayClient(
                serverUrl,//网关地址
                appId,//应用ID
                privateKey,//私钥
                format,
                charset,
                alipayPublicKey,//公钥
                signType//加密算法
        );
        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
        //异步接收地址，仅支持http/https，公网可访问
        request.setNotifyUrl(notifyUrl);
        //同步跳转地址，仅支持http/https
        request.setReturnUrl(returnUrl);
        /******必传参数******/
        JSONObject bizContent = new JSONObject();
        //商户订单号，商家自定义，保持唯一性
        bizContent.put("out_trade_no", outTradeNo);
        //支付金额，最小值0.01元，保留两位小数向上取整
        bizContent.put("total_amount", totalAmount.setScale(2, RoundingMode.UP));
        //订单标题，不可使用特殊符号
        bizContent.put("subject", subject);
        //电脑网站支付场景固定传值FAST_INSTANT_TRADE_PAY
        bizContent.put("product_code", "FAST_INSTANT_TRADE_PAY");

        /******可选参数******/
        /**
         * time_expire可选string(32)
         * 【描述】订单绝对超时时间。
         * 格式为yyyy-MM-dd HH:mm:ss。超时时间范围：1m~15d。
         * 注：time_expire和timeout_express两者只需传入一个或者都不传，两者均传入时，优先使用time_expire。
         * 【示例值】2016-12-31 10:05:01
         */
        //bizContent.put("time_expire", DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss").format(LocalDateTime.now().plusMinutes(1)));

        //// 商品明细信息，按需传入
        //JSONArray goodsDetail = new JSONArray();
        //JSONObject goods1 = new JSONObject();
        //goods1.put("goods_id", "goodsNo1");
        //goods1.put("goods_name", "子商品1");
        //goods1.put("quantity", 1);
        //goods1.put("price", 0.01);
        //goodsDetail.add(goods1);
        //bizContent.put("goods_detail", goodsDetail);

        //// 扩展信息，按需传入
        //JSONObject extendParams = new JSONObject();
        //extendParams.put("sys_service_provider_id", "2088511833207846");
        //bizContent.put("extend_params", extendParams);

        request.setBizContent(bizContent.toString());
        AlipayTradePagePayResponse response = alipayClient.pageExecute(request,"POST");
        // 如果需要返回GET请求，请使用
        // AlipayTradePagePayResponse response = alipayClient.pageExecute(request,"GET");
        String pageRedirectionData = response.getBody();
        // System.out.println(pageRedirectionData);
        return pageRedirectionData;
        /*if(response.isSuccess()){
            System.out.println("调用成功");
        } else {
            System.out.println("调用失败");
        }*/
    }
}

1.3.支付调用范例

@RequiredArgsConstructor
@Controller
public class PayWebController {
    private final AlipayTemplate alipayTemplate;//依赖注入
    @ResponseBody
    @GetMapping(value = "/pay",produces = MediaType.TEXT_HTML_VALUE)
    public String payOrder(@RequestParam("orderSn") String orderSn) throws AlipayApiException {//传入orderSn订单号
        BigDecimal totalAmount = new BigDecimal(100);//支付金额
        String subject = "支付测试";//支付标题
        return alipayTemplate.pay(orderSn,totalAmount,subject);
    }
}

2. 支付异步回调函数模板

@RequiredArgsConstructor
@Controller
public class payedListener {
    private final AlipayTemplate alipayTemplate;
    @ResponseBody
    @PostMapping("/payed/notify")
    public String handleAlipayed(@RequestParam Map<String,String> paramsMap) throws AlipayApiException {
        try {
            boolean signVerified = AlipaySignature.rsaCheckV1(paramsMap, alipayTemplate.getAlipayPublicKey(), alipayTemplate.getCharset(), alipayTemplate.getSignType()); //调用SDK验证签名
            if(signVerified){
                //验签成功，执行正常业务代码
                return "success";
            }else{
                //验签失败
            }
        }catch (Exception ignored){
        }
        return "failure";
    }
}