返回ModelAndView时不呈现视图

Question

我有以下问题.我需要在控制器中导出PDF

下面的代码,我返回一个视图,按预期工作.

@RequestMapping(method = RequestMethod.GET)
    public View exportReport(
            @RequestParam(value = "userName", required = true) String userName,
            @RequestParam(value = "startDate", required = true) Date startDate,
            @RequestParam(value = "endDate", required = true) Date endDate) {


                ///////////////////////////////////////////

        return new TimeSheetReportPdfView();
    }

如果我更改方法以返回ModelAndView会发生此问题:

@RequestMapping(method = RequestMethod.GET)
    public ModelAndView exportReport(
            @RequestParam(value = "userName", required = true) String userName,
            @RequestParam(value = "startDate", required = true) Date startDate,
            @RequestParam(value = "endDate", required = true) Date endDate) {


                ///////////////////////////////////////////

        return new ModelAndView(new TimeSheetReportPdfView(), model);
    }

现在,PDF没有导出,我得到的只是一个空白页面而且日志中没有任何内容.

更新:

public class TimeSheetReportPdfView extends AbstractPdfView {   

    @SuppressWarnings("unchecked")
    @Override
    protected void buildPdfDocument(Map model, Document document,
            PdfWriter writer, HttpServletRequest request, HttpServletResponse response)
            throws Exception {

        }

任何帮助赞赏.

谢谢.

Answer 1

好吧,我找到了这种行为的原因.显然,当我导入ModelAndView时,我不小心从org.springframework.web.portlet导入了它而不是org.springframework.web.servlet.

无论如何,谢谢您的反馈.