RESTful Api-Spring media type vs Restlet media type

Question

我有一个REST客户:

import org.restlet.representation.ObjectRepresentation;
import org.restlet.data.MediaType;

ObjectRepresentation<ApprovalResponse> objectRepresentation = (ObjectRepresentation<ApprovalResponse>) cr.post(approvalRequest, MediaType.APPLICATION_JAVA_OBJECT);

和一个 Spring Boot Service RESTful api：

import org.springframework.http.MediaType;

@PostMapping(value = "/rest/approvals-submit")
public @ResponseBody ApprovalResponse submit(@RequestHeader(name="Authorization") String token, @RequestBody ApprovalRequest approvalRequest) {
    System.out.println("jwt token: "+token);
    System.out.println(approvalRequest.getMessageToEvaluator());
    ApprovalResponse approvalResponse = new ApprovalResponse();
    approvalResponse.setApprovalId("Test approvalResponse from micro service");
    return approvalResponse;
}

客户端调用 API 成功。即 System.out.println（approvalRequest.getMessageToEvaluator（））; 成功打印出来。

问题

我的问题是响应html" target="_blank">对象没有返回到REST客户端。

错误消息

Rest客户端

org.restlet.resource。ResourceException:不可接受（406）-请求所标识的资源只能生成响应实体，这些响应实体的内容特征根据请求中发送的接受标头是不可接受的

服务器/Api

已解决的[org.springframework.web.HttpMediaTypeNotAccepable异常：找不到可接受的表示]

问题

所以我认为这些错误是因为没有正确定义MediaTypes。你知道他们应该被定义为什么吗？

Answer 1

我们在restendpoint的postMapping注释上添加了以下内容:

@PostMapping(value = "/rest/approvals-submit")
public @ResponseBody ApprovalResponse submit(@RequestHeader(name="Authorization") String token, @RequestBody ApprovalRequest approvalRequest, produces={MediaType.APPLICATION_JSON_VALUE,
MediaType.APPLICATION_XML_VALUE},consumes = MediaType.APPLICATION_JSON_VALUE) {
    System.out.println("jwt token: "+token);
    System.out.println(approvalRequest.getMessageToEvaluator());
    ApprovalResponse approvalResponse = new ApprovalResponse();
    approvalResponse.setApprovalId("Test approvalResponse from micro service");
    return approvalResponse;
}

添加到@PostMapping批注上的这一内容产生={MediaType。应用程序_JSON_VALUE，媒体类型。APPLICATION_XML_VALUE}，consumes = MediaType。应用程序_JSON_VALUE。

在客户端，我们将响应类型更改为表示，并且我们能够得到json响应：

ClientResource cr = new ClientResource(endpointUrl);
ChallengeResponse challengeResponse = new ChallengeResponse(ChallengeScheme.HTTP_OAUTH_BEARER);
challengeResponse.setRawValue(token);
cr.setChallengeResponse(challengeResponse);

Request req = cr.getRequest();

Representation representation = cr.post(approvalRequest);
System.out.println(representation.getText());

最后，使用Jackson Object Mapper，可以将响应映射到Approval响应对象：

    // now convert the response to java
    ObjectMapper objectMapper = new ObjectMapper();
    ApprovalResponse approvalResponse = objectMapper.readValue(json, ApprovalResponse.class);
    System.out.println(approvalResponse);
    System.out.println(approvalResponse.getApprovalId());

这是一个内容谈判问题。内容协商是通过内容类型标头完成的，为了更好地理解它，您可以阅读此博客文章