创建文本/纯泽西响应

Here is the Resource class. The JSON and XML media types use a JAXB annotated bean class. The text plain uses a custom string format (basically the stdout representation of a command).

@Path("/machines")
public class MachineResource {
    private final MachineManager manager;

    @Inject
    public MachineResource(MachineManager manager) {
        this.manager = manager;
    }

    @GET @Path("details/")
    @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
    public List<Machine> details() {
        return manager.details();
    }
    @GET @Path("details/")
    @Produces({ MediaType.TEXT_PLAIN })
    public String detailsText() {
        StringBuilder text = new StringBuilder();       
        for(Machine machine : manager.details()) {
            text.append(machine.toString());
        }
        return text.toString();
    }

有没有更好的方法让 Jersey 自动转换为字符串，所以我只需要在这里实现一个方法?(可以处理所有 3 种媒体类型)

@GET @Path("details/")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML, MediaType.TEXT_PLAIN })
public List<Machine> details() {
    return manager.details();
}