关于ModelAndView

import org.springframework.web.servlet.ModelAndView;

	@RequestMapping(value = "/goJxsjddPage")
	public ModelAndView goJxsjddPage() {
		ModelAndView mv = new ModelAndView();
		List<String> pcbhs = pcszDao.getPcbh();
		String ztbz = "";
		mv.addObject("ztbz", ztbz);
		mv.addObject("pcbhs", pcbhs);
		mv.setViewName("gcgl/jxsjdd");
		return mv;
	}

引包的时候注意应引入的是org.springframework.web.servlet下边的包，而不是
import org.springframework.web.portlet.ModelAndView;的包下的ModelAndView类；