无法识别的令牌“付款”：期待（JSON 字符串、数字、数组、对象或令牌“空”、“真”或“假”）

Question

我正在使用 H2 数据库开发两个 Spring Boot 微服务（订单和支付）不在订单服务中，我收到上述错误：

这是我的代码

服务

public TransactionResponse saveOrder(TransactionRequest request) {
    String responseMessage = "";
    Order order = request.getOrder();
    Payment payment = request.getPayment();
    payment.setOrderId(order.getId());
    payment.setAmount(order.getPrice());
    // response message
    System.out.println(order);
    // rest api call to payment service
    Payment paymentResponse =
           restTemplate.postForObject("http://localhost:8082/api/payment", payment, Payment.class);

    responseMessage = paymentResponse.getPaymentStatus().equals("success")?
           "payment processed successfully": "payment failed ";
    orderRepository.save(order);
    System.out.println(paymentResponse);

    return new TransactionResponse(order , paymentResponse.getTransactionId() , paymentResponse.getAmount(), responseMessage);
}

控制器

@PostMapping
public TransactionResponse bookOrder(@RequestBody TransactionRequest transactionRequest) {
    return orderService.saveOrder(transactionRequest);
}

事务请求模型

@Data
@AllArgsConstructor
@NoArgsConstructor
public class TransactionRequest  {
  private Order order;
  private Payment payment;
}

支付模式

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment {
    private int paymentId;
    private String paymentStatus;
    private String transactionId;
    private double amount;
    private int orderId;
}

图片

Answer 1

哦，我遇到了问题，因为我正在对支付服务进行 rest api 调用，支付服务的 post 方法返回的是字符串而不是 Payment 对象。

这是我之前的后付款方式：

@PostMapping
public String orderPayment(@RequestBody Payment payment) {
   paymentService.doPayment(payment);
   return "Payment done";
}

应该是这样的

@PostMapping
public Payment orderPayment(@RequestBody Payment payment) {
   return paymentService.doPayment(payment);
}

注意：返回类型