Java Jax-RS从字节[]生成图像

当用户点击url

http://localhost:8080/app/profile/getImage/5315d33284aec8c202eef15a

它应该显示id为5315d33284aec8c202eef15a的图像

My service is 



@GET
    @Path("/getImage/{id}")
    @Produces({"image/*"})
    public Response getImage(@PathParam("id") final String id)
    {
        ResponseBuilder builder = Response.status(Status.INTERNAL_SERVER_ERROR);
        try
        {

            final byte[] imageBytes = getImageBytes(id);
 System.out.println("image length "+imageBytes.length);
            builder.status(Status.OK).entity(new StreamingOutput(){
                @Override
                public void write(OutputStream output) throws IOException, WebApplicationException
                {
                    output.write(imageBytes);
                    output.flush();

                }

            });
        }
        catch (Exception e)
        {
          System.out.println("exception "+e);
        }
        return builder.build();
    }

---

但它不生成图像。

System.out.println（“图像长度”+imageBytes.length）给出输出=>我缺少的图像长度72240？
您需要指定正在生成的图像的类型。将
.type（“image/png”）
添加到png图像的
ResponseBuilder

builder.status(Status.OK).type("image/png").entity(new StreamingOutput(){
    @Override
    public void write(OutputStream output) throws IOException, WebApplicationException {
        output.write(imageBytes);
        output.flush();
    }
});