springboot集成PayPal支付
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                Spring Boot 整合 PayPal 支付,可以使用 PayPal 的 REST API。以下是一个基本的集成步骤和示例代码:
- 添加依赖到你的 
pom.xml文件中: 
<dependency>
    <groupId>com.paypal.sdk</groupId>
    <artifactId>checkout-sdk</artifactId>
    <version>1.0.2</version>
</dependency>- 配置 PayPal 客户端:
 
@Configuration
public class PayPalConfig {
 
    @Value("${paypal.client.id}")
    private String clientId;
 
    @Value("${paypal.client.secret}")
    private String clientSecret;
 
    public PayPalHttpClient createHttpClient() {
        return new PayPalHttpClient(createBuilder());
    }
 
    private HttpClient.Builder createBuilder() {
        return new OkHttpClient.Builder()
                .setRequestTimeout(0, TimeUnit.SECONDS)
                .addInterceptor(new HttpBasicAuthInterceptor(clientId, clientSecret, ""));
    }
}- 创建一个服务来发起支付:
 
@Service
public class PayPalPaymentService {
 
    @Autowired
    private PayPalConfig payPalConfig;
 
    public String createPayment(String orderId, BigDecimal amount) throws IOException {
        Payment payment = new Payment();
        payment.setIntent("sale");
        ...
 
        Request request = new Request();
        request.setMethod("POST");
        request.setBody(payment);
        request.setUri("/v2/checkout/orders");
 
        PayPalHttpClient client = payPalConfig.createHttpClient();
        Response response = client.execute(request);
        if (response.statusCode() == 201) {
            // 支付创建成功,返回支付ID
            return response.result().getId();
        } else {
            // 处理错误
            throw new RuntimeException("支付创建失败");
        }
    }
}- 创建一个控制器来处理支付请求:
 
@RestController
public class PayPalController {
 
    @Autowired
    private PayPalPaymentService paymentService;
 
    @PostMapping("/api/paypal/create-payment")
    public String createPayment(@RequestParam BigDecimal amount) {
        try {
            return paymentService.createPayment("12345", amount);
        } catch (IOException e) {
            throw new RuntimeException("支付请求失败", e);
        }
    }
}确保你已经在 PayPal 开发者控制台配置好应用,并获取到了 clientId 和 clientSecret。
以上代码仅为示例,实际集成时需要根据自己的业务逻辑进行相应的调整,比如填充完整的 Payment 对象,处理不同的业务逻辑等。
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