支付宝沙箱支付springboot代码

下面是一个简单的支付宝沙箱支付的Spring Boot示例代码：

1. 在pom.xml文件中添加以下依赖：

<dependency>
    <groupId>com.alipay.sdk</groupId>
    <artifactId>alipay-sdk-java</artifactId>
    <version>3.7.110.ALL</version>
</dependency>

2. 创建一个支付宝配置类，如下所示：

@Configuration
public class AlipayConfig {

    @Value("${alipay.appId}")
    private String appId;

    @Value("${alipay.privateKey}")
    private String privateKey;

    @Value("${alipay.publicKey}")
    private String publicKey;

    @Value("${alipay.gateway}")
    private String gateway;

    @Value("${alipay.notifyUrl}")
    private String notifyUrl;

    @Bean
    public AlipayClient alipayClient() {
        return new DefaultAlipayClient(gateway, appId, privateKey, "json", "UTF-8", publicKey, "RSA2");
    }

    @Bean
    public AlipayTradeService alipayTradeService() {
        return new AlipayTradeServiceImpl.ClientBuilder().build();
    }

    @Bean
    public AlipayTradePagePayRequest alipayTradePagePayRequest() {
        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
        request.setReturnUrl("http://localhost:8080/alipay/return");
        request.setNotifyUrl(notifyUrl);
        return request;
    }
}

3. 创建一个支付控制器，如下所示：

@RestController
@RequestMapping("/alipay")
public class AlipayController {

    @Autowired
    private AlipayClient alipayClient;

    @Autowired
    private AlipayTradeService alipayTradeService;

    @Autowired
    private AlipayTradePagePayRequest alipayTradePagePayRequest;

    @GetMapping("/pay")
    public void pay(HttpServletResponse response) throws Exception {
        alipayTradePagePayRequest.setBizContent("{" +
                "    \"out_trade_no\":\"20150320010101001\"," +
                "    \"product_code\":\"FAST_INSTANT_TRADE_PAY\"," +
                "    \"total_amount\":0.01," +
                "    \"subject\":\"Iphone6 16G\"," +
                "    \"body\":\"Iphone6 16G\"" +
                "  }");
        String form = alipayTradeService.pagePay(alipayTradePagePayRequest).getBody();
        response.setContentType("text/html;charset=UTF-8");
        response.getWriter().write(form);
        response.getWriter().flush();
        response.getWriter().close();
    }

    @RequestMapping("/return")
    public String returnUrl(HttpServletRequest request) throws Exception {
        Map<String, String> params = new HashMap<>();
        Map<String, String[]> requestParams = request.getParameterMap();
        for (String key : requestParams.keySet()) {
            String[] values = requestParams.get(key);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
            }
            params.put(key, valueStr);
        }
        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.publicKey, "UTF-8", "RSA2");
        if (signVerified) {
            return "success";
        } else {
            return "fail";
        }
    }

    @PostMapping("/notify")
    public String notify(HttpServletRequest request) throws Exception {
        Map<String, String> params = new HashMap<>();
        Map<String, String[]> requestParams = request.getParameterMap();
        for (String key : requestParams.keySet()) {
            String[] values = requestParams.get(key);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
            }
            params.put(key, valueStr);
        }
        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.publicKey, "UTF-8", "RSA2");
        if (signVerified) {
            // 处理支付成功逻辑
            return "success";
        } else {
            return "fail";
        }
    }
}

4. application.properties中添加支付宝相关配置：

alipay.appId=你的支付宝应用ID
alipay.privateKey=你的应用私钥
alipay.publicKey=你的支付宝公钥
alipay.gateway=https://openapi.alipaydev.com/gateway.do
alipay.notifyUrl=http://localhost:8080/alipay/notify

5. 启动应用，访问http://localhost:8080/alipay/pay即可进行支付。

这个示例代码只是一个简单的实现，实际生产环境中还需要考虑并发、异常、安全等问题，请根据实际情况进行具体实现。