从JAX-RS Rest Service作为JSON返回异常 [英] Return exception from JAX-RS Rest Service as JSON

问题描述

是否以某种方式将休息服务抛出的异常返回为JSON？我有一个JAX-RS休息服务，我想实现这一点。当我现在抛出它，它映射到一个HTML响应，这不是我想要的。从我所了解的一个ExceptionMapper也将其映射到HTML？有没有任何其他替代或库允许以JSON格式返回异常？

Is it in some way possible that an exception thrown from a rest service is returned as JSON? I have a JAX-RS Rest Service where I would like to achieve this. When I throw it now, it's mapped to an HTML response, which is not what i want. From what I have understood an ExceptionMapper will also map it to HTML? Is there any other alternative or libraries that allows the exception to be returned in JSON format?

推荐答案

它将作为JSON回复。

It will respond as JSON.

@Provider
@Singleton
public class ExceptionMapperProvider implements ExceptionMapper<Exception>
{

    @Override
    public Response toResponse(final Exception exception)
    {
            return Response.status(HttpStatusCodes.STATUS_CODE_SERVER_ERROR).entity(new BasicResponse(InternalStatus.UNHANDLED_EXCEPTION, exception.getMessage())).type(MediaType.APPLICATION_JSON).build();    
    }
}

@XmlRootElement
public class BasicResponse {

    public String internalStatus;

    public String message;

    public BasicResponse() {}

    public BasicResponse(String internalStatus, String message){
        this.internalStatus = internalStatus;
        this.message = message;
    }
}

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