使用 spring RestTemplate 来自 Android 的 PUT 请求

我必须通过 Restful 服务（.Net）将客户对象从 Android 客户端放入数据库

服务合同

[WebInvoke(Method = "PUT", UriTemplate = "customers/{customerId}", RequestFormat = WebMessageFormat.Xml, BodyStyle = WebMessageBodyStyle.Bare)]
    [OperationContract]
    ReturnValueLong PutCustomer(string customerId, Customer entity);

客户.cs

public class Customer
{

    [DataMember]
    public long SystemId{ get; set; } 

    [DataMember]
    public long CustomerId { get; set; }

    [DataMember]
    public string Name { get; set; }

    [DataMember]
    public string Description { get; set; }
}

在客户端，我使用 Spring for Android 进行通信。

客户端代码：

                    Customer customer = new Customer();
                    customer.setCustomerId(12);
                    customer.setName("sample name");
                    customer.setDescription("sample description");
                    customer.setSystemId(123);

                    List<MediaType> acceptableMediaTypes = new ArrayList<MediaType>();
                    acceptableMediaTypes.add(MediaType.APPLICATION_XML);

                    // Prepare header
                    HttpHeaders headers = new HttpHeaders();
                    headers.setAccept(acceptableMediaTypes);

                    // Pass the new person and header
                    HttpEntity<Customer> entity = new HttpEntity<Customer>(
                            customer, headers);

                    final String url = "https://192.168.2.119:8009/IAdministratorService/customers/{customerId}";

                    RestTemplate restTemplate = new RestTemplate();
                    restTemplate.getMessageConverters().add(
                            new SimpleXmlHttpConverter());

                    ResponseEntity<NCheckReturnValue> result = restTemplate
                            .exchange(url, HttpMethod.PUT, entity,
                                    NCheckReturnValue.class, 12);

                    return "Return Code:" + result.getBody().getCode()
                            + " Return Value: "
                            + result.getBody().getReturnValue();

客户.java

@Root(name = "Customer")
 @Namespace(reference = "NCheck.Core.Model")
 public class Customer {

@Element
private long SystemId;

@Element
private long CustomerId;

@Element
private String Name;

@Element
private String Description;

// Getters and Setters


}

当我执行代码时，服务器端未正确接收客户对象。 （名称正确，但描述为空）

这个实现有什么问题吗？

如果您能够输入“名称”，则没有理由不输入“描述”。一般来说，如果一个属性被发送为空，那是因为注释没有正确定义。可能的解决方案，

1. 您可能根本不需要模型类（Customer.java）的注释，因为类名称、属性名称在客户端和服务器端完全匹配。
2. 仔细检查两端的属性名称。
3. 使用代理工具，如 charles 或 Burpsuite 来嗅探请求正文的结构，以确保请求具有预期的格式。

4. 您可以尝试写一些类似的适合您目的的内容。

       /**
            * Put operation where where request and response are both JSON objects.
            * 
            * @param request
            *            the Object to be sent as part of request body
            * @param url
            *            the server url for request
            * @param restTemplate
            *            the rest template
            * @param response
            *            the response type that will be returned by server
            * @return the response object
            * @throws Exception
            */
           public T2 put(T1 request, String url, RestTemplate restTemplate,
                   Class<T2> response) throws Exception {
   
               HttpHeaders headers = new HttpHeaders();
               headers.setAcceptEncoding(ContentCodingType.GZIP);
               // use MediaType relevant to your need
               headers.setContentType(new MediaType(APPLICATION, TYPE_JSON));
   
               HttpEntity<T1> requestEntity = new HttpEntity<T1>(request, headers);
               ResponseEntity<T2> responseEntity;
               try {
                   responseEntity = restTemplate.exchange(url, HttpMethod.PUT,
                           requestEntity, response);
   
               } catch (HttpClientErrorException ex) {
                   throw ex;
               }
   
               catch (HttpServerErrorException e) {
                   throw e;
               }
               return responseEntity.getBody();
           }
   

   祝你好运！