Jersey 将大型HSSF工作簿写入ServletOutputStream

我有下面的代码。当我尝试将记录列表导出到包含少量记录（约200条记录）的excel时，这种方法效果很好：

当列表的大小变大时（ex超过200条记录），悲剧就开始了。它给出了以下错误：

 <An I/O error has occurred while writing a response message entity to the container output stream.
org.glassfish.jersey.server.internal.process.MappableException: java.io.IOException: CLOSED

冲洗小溪是大多数人所指的唯一方法。现在，这个解决方案不仅适用于大数据，也适用于小数据（不适用于两种情况）。它给出了以下错误：

An I/O error has occurred while writing a response message entity to the container output stream.
org.glassfish.jersey.server.internal.process.MappableException: com.fasterxml.jackson.databind.JsonMappingException: Direct self-reference leading to cycle 

我尝试了

XSSFWorkbook

而不是

HSSFWorkbook

。但是weblogic甚至没有构建该项目，并且抛出了一个与

元模型相关的错误

不管怎样，这个代码有什么问题。如何将较大的文件写入流？我的apache poi版本是3.11。
正如Paul Samsotha

评论的S.O link所说，我应该使用

StreamingOutput

而不是

ServletOutputStream

。因此，该方法应重写为：

    @Path("/toExcel")
    @GET
    public Response excelCustomersReport(@QueryParam("page") Integer page, @QueryParam("start") Integer start, @QueryParam("limit") Integer limit, @QueryParam("filter") FilterWrapper filter, @QueryParam("sort") SortWrapper sort) throws Exception {
        response.setContentType("application/octet-stream");
        DateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd_HH:mm:ss");
        String currentDateTime = dateFormatter.format(new Date());
        String headerKey = "Content-Disposition";
        String headerValue = "attachment; filename=report_" + currentDateTime + ".xlsx";
        response.setHeader(headerKey, headerValue);
        HSSFWorkbook workbook=userService.export(page,start,limit,filter,sort);
        StreamingOutput output = new StreamingOutput() {
            @Override
            public void write(OutputStream out)
                    throws IOException, WebApplicationException {
                workbook.write(out);
                out.flush();
            }
        };
        return Response.ok(output)
                .build();
    }

---

tnx！解决了这个问题！

An I/O error has occurred while writing a response message entity to the container output stream.
org.glassfish.jersey.server.internal.process.MappableException: com.fasterxml.jackson.databind.JsonMappingException: Direct self-reference leading to cycle 

    @Path("/toExcel")
    @GET
    public Response excelCustomersReport(@QueryParam("page") Integer page, @QueryParam("start") Integer start, @QueryParam("limit") Integer limit, @QueryParam("filter") FilterWrapper filter, @QueryParam("sort") SortWrapper sort) throws Exception {
        response.setContentType("application/octet-stream");
        DateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd_HH:mm:ss");
        String currentDateTime = dateFormatter.format(new Date());
        String headerKey = "Content-Disposition";
        String headerValue = "attachment; filename=report_" + currentDateTime + ".xlsx";
        response.setHeader(headerKey, headerValue);
        HSSFWorkbook workbook=userService.export(page,start,limit,filter,sort);
        StreamingOutput output = new StreamingOutput() {
            @Override
            public void write(OutputStream out)
                    throws IOException, WebApplicationException {
                workbook.write(out);
                out.flush();
            }
        };
        return Response.ok(output)
                .build();
    }