方法的改造

function doOk(id,val){
    
    
   var msg = "";
   msg =  val ==1?"启用成功":"停用成功";
   doAjax({
    
    
       url: appPath "/page/signActivityAct/onlineOrOffline",
       type: "post",
       dataType: "json",  
       data: {id:id,isdisable:val} ,
       success: function (data) {
    
    
           doQuery();
           if(data=='1'){
    
    
              $.messager.alert('提示','数据中已经存在启用状态的活动,不可再启用！');
           }else{
    
    
           $.messager.alert('提示信息', msg, 'info');
           }
       },
       error: function () {
    
    
           alert('ajax异常'); 
       }
   }); 
}

    @RequestMapping(value="/onlineOrOffline")
    @ResponseBody
    public String onlineOrOffline(HttpServletRequest request,HttpServletResponse response){
        String id = request.getParameter("id");
        String status = request.getParameter("isdisable");
        SignActivity signActivity=new SignActivity ();
        if("1".equals(status)){
            int acCount=signActivityService.queryCountIsdisable(signActivity);
            if(acCount>0){
                return "1";
            }else{
                signActivity.setSignActivityId(Long.parseLong(id));
                signActivity.setIsdisable("N");
            
                signActivityService.updateSignActivity(signActivity);
            }
        }
        if("2".equals(status)){
            signActivity.setSignActivityId(Long.parseLong(id));
            signActivity.setIsdisable("Y");
            signActivityService.updateSignActivity(signActivity);
        }
        
        return "0";
    }