后台获取不到前段传递的值？

Question

    huang = function(id){
      var booknumber = list[id];
      console.log(booknumber)=====================》前端输出了这个值。保证了这里有值
      layer.open({
        title:'添加商品',
        type: 2,
        area: ['800px', '400px'],
        content:['/MyCar/getSearchLayer?booknumber'+booknumber, 'no'] 
      });
    }


=========================

    @RequestMapping("/getSearchLayer")
    public String getSearchLayer(@RequestParam(value = "booknumber",required = false) String booknumber, HttpSession session){
        System.out.println(booknumber);
        Map map = new HashMap<String,Object>();
        Library library = myCarService.getMycarByImgService(booknumber);
        System.out.println(library);
        return "views/template/searchLayer";
    }


booknumber的值一直为空？

Answer 1

content:['/MyCar/getSearchLayer?booknumber'+booknumber, 'no']

这里传参拼接语句少了个=

正确的：

content:['/MyCar/getSearchLayer?booknumber='+booknumber, 'no']