帮忙注释一段代码吧谢谢

 public ActionForward projectselect(ActionMapping actionMapping,ActionForm actionForm, HttpServletRequest request,HttpServletResponse servletResponse) 
    {
     ProjectType[] projectTypeList = ProjectService.getAllPorjectType();
      request.setAttribute("projectTypeList",projectTypeList);
     return actionMapping.findForward("projectselect");
    }
    //项目明细查询
    public ActionForward searchofprojectmx(ActionMapping actionMapping,ActionForm actionForm, HttpServletRequest request,HttpServletResponse servletResponse) 
    {
     String year = request.getParameter("year");
     String projectType = request.getParameter("projectType");
     String projectNo = request.getParameter("projectNo");
        
        Row[] count = ProjectService.searchcountofprojectmx(year,projectType,projectNo); 
        //如果项目有重复：
        if(count.length!=1) 
        {
         String flag = "default";
         request.setAttribute("flag", flag);
         return actionMapping.findForward("default");
        }
        Row[] result = ProjectService.searchresultofprojectmx(year,projectType,projectNo);        request.setAttribute("count", count);
request.setAttribute("result", result);
        return actionMapping.findForward("resultofprojectmx");
    }