我想根据请求的 HttpHeaders 以两种格式制作 REST API 响应:

@Context
HttpHeaders headers;

public Response toResponse(MyValidationException exception) {
   if(headers.getMediaType().toString().equals(MediaType.APPLICATION_XML)){
     return Response.status(Status.BAD_REQUEST).entity(exception.getErrors()).type(MediaType.APPLICATION_XML).build();
  }else{
     return Response.status(Status.BAD_REQUEST).entity(exception.getErrors()).type(MediaType.APPLICATION_JSON).build();
}}

它适用于 MediaType.APPLICATION_JSON,但对于 MediaType.APPLICATION_XML,我收到以下错误:
org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.aroundWriteTo MessageBodyWriter not found for media type=application/xml, type=class java.util.HashMap$EntrySet, genericType=class java.util.HashMap$EntrySet.

任何想法来解决这个问题?

最佳答案

您的项目中是否有 jaxb 依赖项?

<dependency>
  <groupId>org.glassfish.jersey.media</groupId>
  <artifactId>jersey-media-jaxb</artifactId>
  <version>x.x.x</version>
</dependency>

如果是,也许您可​​以尝试将 exception.getErrors()(似乎是 Map?)包装成 GenericEntity 并将该实体提供给响应:
GenericEntity<Map<?, ?>> entity = new GenericEntity..

return Response.status(Status.X).entity(entity).type(MediaType.APPLICATION_XML).build();

关于java - 找不到 Media type=application/xml 的 MessageBodyWriter,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/47327162/

10-08 21:20