Java 解析来自RestTemplate请求的远程响应

我想使用此RestTemplate代码进行远程POST请求。我试过这个：

       public static void main(String[] args) {
    String token = "d778dh";
    URI uri = UriComponentsBuilder.fromUriString("http://localhost:8080/bogus_rest_api/v1")
            .pathSegment(token)
            .build()
            .toUri();
    HttpEntity<PaymentTransaction> request = new HttpEntity<>(new PaymentTransaction());

    RestTemplate restClient = new RestTemplate();
    restClient.getInterceptors().add(new BasicAuthorizationInterceptor("petrov", "password2"));
    ResponseEntity<PaymentResponse> response = restClient.exchange(uri, HttpMethod.POST,
            request, PaymentResponse.class);
    PaymentResponse foo = response.getBody();
    System.out.println("!!! Calling Bogus Gateway " + foo.getTransactionId());

}

收到的对象：

@XmlRootElement(name = "payment_response")
public class PaymentResponse {

    @XmlElement(name = "transaction_type")
    public String transactionType;
    @XmlElement(name = "transaction_id")
    public String transactionId;
    @XmlElement(name = "amount")
    public Integer amount;
    @XmlElement(name = "currency")
    public String currency;

但得到错误可能是因为我必须配置正确的对象转换

org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter@4f1bfe23

23:06:20.309 [main] DEBUG org.springframework.web.client.RestTemplate - Created POST request for "http://localhost:8080/bogus_rest_api/v1/d778dh"
23:06:20.534 [main] DEBUG org.springframework.web.client.RestTemplate - Setting request Accept header to [application/xml, text/xml, application/json, application/*+xml, application/*+json]
23:06:20.612 [main] DEBUG org.springframework.web.client.RestTemplate - Writing [org.datalis.plugin.rest.models.PaymentTransaction@747f281] using [org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter@1169afe1]
23:06:20.895 [main] DEBUG org.springframework.web.client.RestTemplate - POST request for "http://localhost:8080/bogus_rest_api/v1/d778dh" resulted in 200 (OK)
23:06:20.896 [main] DEBUG org.springframework.web.client.RestTemplate - Reading [class org.datalis.plugin.rest.models.PaymentResponse] as "application/xml;charset=UTF-8" using [org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter@1169afe1]
!!! Calling Bogus Gateway null

完整日志：

我总是得到Null作为响应。

---

你能建议我如何解决这个问题吗？

请解释问题所在。我这里的每个值都会为Null foo.getTransactionId（）。你可能想在问题中实际解释问题。完成，可能是我的请求代码出错了？请尝试编写一个独立的MCVE测试，该测试使用此

MappingJackson2XmlHttpMessageConverter

或其他任何东西解析您得到的XML。另外，尝试将

transactionId

字段更改为

transaction\u id

（同时也是getter/setter）。我觉得不考虑

@xmlement

注释。

org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter@4f1bfe23

23:06:20.309 [main] DEBUG org.springframework.web.client.RestTemplate - Created POST request for "http://localhost:8080/bogus_rest_api/v1/d778dh"
23:06:20.534 [main] DEBUG org.springframework.web.client.RestTemplate - Setting request Accept header to [application/xml, text/xml, application/json, application/*+xml, application/*+json]
23:06:20.612 [main] DEBUG org.springframework.web.client.RestTemplate - Writing [org.datalis.plugin.rest.models.PaymentTransaction@747f281] using [org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter@1169afe1]
23:06:20.895 [main] DEBUG org.springframework.web.client.RestTemplate - POST request for "http://localhost:8080/bogus_rest_api/v1/d778dh" resulted in 200 (OK)
23:06:20.896 [main] DEBUG org.springframework.web.client.RestTemplate - Reading [class org.datalis.plugin.rest.models.PaymentResponse] as "application/xml;charset=UTF-8" using [org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter@1169afe1]
!!! Calling Bogus Gateway null