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@RequestMapping(value="selectDepts2.do")
public ModelAndView findDepts2() {
List<Dept> depts=deptService.getDpets();
ModelAndView mav=new ModelAndView("dept");
mav.addObject("depts", depts.get(0));
return mav;
}
@RequestMapping(value="selectDepts2.do")
public ModelAndView findDepts2() {
List<Dept> depts=deptService.getDpets();
Map model=new HashMap();
model.put("depts", depts);
ModelAndView mav=new ModelAndView("dept",model);
return mav;
}
引入错误的ModelAndView类也可能拿不到值。。
正确类:import org.springframework.web.servlet.ModelAndView;