springMVC框架中跳转页面传提示

@RequestMapping("getContext")
public String getPayContext(@RequestParam(value = "page", defaultValue = "1") Integer page,
@RequestParam(value = "rows", defaultValue = "10") Integer rows, String fromSystem,
HttpSession session, HttpServletRequest request, HttpServletResponse response, Model model) throws IOException {


Map map = new HashMap();
map.put("startIndex", (page - 1) * rows);
map.put("endIndex", rows);


model.addAttribute("page", page);
model.addAttribute("rows", rows);
SystemFrom sf = systemFromService.getSystemFrom();
if (sf == null) {

PrintWriter writer = response.getWriter();
writer.println("");
writer.println("");
writer.flush();
writer.close();
return null;

}

model.addAttribute("currPage", page);
model.addAttribute("totalPage", totalPage1);
return "context";   //跳转页面context.jsp

}