求教大神，哪位大神能救救命啊

要求点击chapter类型的章节时显示chapter章节下的session章节，点击session类型的章节时显示lession类型的章节。。。
@Controller
@RequestMapping(value = "${adminPath}/edu/eduLearnings")
public class EduLearningsController extends BaseController {

@Autowired
private EduLearningsService eduLearningsService;
@Autowired
private EduSubjectsService eduSubjectsService;

@Autowired
private EduGradesService eduGradesService;


@ModelAttribute
public EduLearnings get(@RequestParam(required=false) String id) {
    EduLearnings entity = null;
    if (StringUtils.isNotBlank(id)){
        entity = eduLearningsService.get(id);
    }
    if (entity == null){
        entity = new EduLearnings();
    }
    return entity;
}

@RequiresPermissions("edu:eduLearnings:view")
@RequestMapping(value = {"list", ""})
public String list(EduLearnings eduLearnings, HttpServletRequest request, HttpServletResponse response, Model model) {
    Page<EduLearnings> page = eduLearningsService.findPage(new Page<EduLearnings>(request, response), eduLearnings);
      List<EduGrades> eduGrades = eduGradesService.findList(new EduGrades());
      List<EduSubjects> eduSubjects = eduSubjectsService.findList(new EduSubjects());
      for(EduLearnings learns:page.getList()){
          for(EduGrades grade:eduGrades){
              if(grade.getGradeid()==learns.getGradeid()){
                  learns.setGraname(grade.getGradename());
              }
          }
          for(EduSubjects sub:eduSubjects){
              if(sub.getSubjectid()==learns.getSubjectid()){
                  learns.setSubname(sub.getSubjectname());
              }
          }
      }
    model.addAttribute("page", page);
    model.addAttribute("eduGrades", eduGrades);
    model.addAttribute("eduSubjects", eduSubjects);
    return "modules/edu/eduLearningsList";
}

@RequiresPermissions("edu:eduLearnings:view")
@RequestMapping(value = "form")
public String form(EduLearnings eduLearnings, Model model) {
    model.addAttribute("eduLearnings", eduLearnings);
    return "modules/edu/eduLearningsForm";
}

@RequiresPermissions("edu:eduLearnings:edit")
@RequestMapping(value = "save")
public String save(EduLearnings eduLearnings, Model model, RedirectAttributes redirectAttributes) {
    if (!beanValidator(model, eduLearnings)){
        return form(eduLearnings, model);
    }
    eduLearningsService.save(eduLearnings);
    addMessage(redirectAttributes, "保存章节成功");
    return "redirect:"+Global.getAdminPath()+"/edu/eduLearnings/?repage";
}

@RequiresPermissions("edu:eduLearnings:edit")
@RequestMapping(value = "delete")
public String delete(EduLearnings eduLearnings, RedirectAttributes redirectAttributes) {
    eduLearningsService.delete(eduLearnings);
    addMessage(redirectAttributes, "删除章节成功");
    return "redirect:"+Global.getAdminPath()+"/edu/eduLearnings/?repage";
}

}

you are using jeesite from your code .QQ 315976466