htmlajaxjspappendcustom-tag

how can i change list with custom tag in jsp?


I faced following problem with custom tag in JSP. html content list generated by div custom tag when page loading end. after that, i want to replace the list with ajax`s new data. first, I emptied old list. and i made a html string(pdListHtml), append it. but I cant get any new list at all.
please point me out if there is something wrong with the code. thanks.

html.jsp

<ul class="pdImgType">
    <c:forEach var="goods" items="${goods}">    
        <div class="pdList">
            <pt:product prdNm="${goods.goods_name}" dispPrc="${goods.goods_origin_price }"/>
        </div>    
    </c:forEach>
</ul>

Ajax JS

const filterParam = $("#submitForm").serializeArray();

$.ajax({
    type : "post",
    url : "/ctgrSearchFilter.do",
    data : filterParam,
    dataType : "json",
    success : function(data) {               
        $(".pdImgType").empty();
        const goods = data.result.goods;        

        for(let i=0 ; i < goods.length ; i++){
            let pdListHtml = "";
            pdListHtml += '<div class=\"pdList\">';
            pdListHtml += '<pt\:product prdNm=\"'+ goods[i].goods_name +'\" dispPrc=\"'+ goods[i].goods_origin_price +'\"/>';
            pdListHtml += '</div>';
             $(".pdImgType").append(pdListHtml);
        }                
     },
     error : function(err) {
         alert("error");
     }
});

data from java

@RequestMapping(value = "/ctgrSearchFilter.do" , method = equestMethod.POST)
@ResponseBody
public JSONObject ctgrSrhFilter(HttpServletRequest request) throws Exception {
    JSONObject json = new JSONObject();
    ModelAndView mv = commSearchService.callSearchAllNewAPI(request); 
    logger.info(">>>> ctgr result mv : "+ mv);       
    json.put("result",  mv.getModel());

    return json;
}

console log in java

ctgr result mv : ModelAndView: materialized View is [null]; model is {cateCntTot=0, cate=[], brand1List=[], delryList=[], total=1254, goods=[{goods_name=nice, goods_origin_price=109000}]}


Solution

  • You need to get goods using data.goods and then loop over it .Also ,check if your json is valid or not .

    Demo Code :

    //your json response
    var data = {
      "cateCntTot": 0,
      "cate": [],
      "brand1List": [],
      "delryList": [],
      "total": 1254,
      "goods": [{
        "goods_name": "nice",
        "goods_origin_price": 109000
      }]
    };
    var pdListHtml = "";
    ///fetching data->goods
    var goods = data.goods;
    for (let i = 0; i < goods.length; i++) {
    
      //your html 
      /*pdListHtml += '<div class=\"pdList\" style="background:yellow"><pt\:product prdNm=\"' + goods[i].goods_name + '\" dispPrc=\"' + goods[i].goods_origin_price + '\"/></div>';*/
      
      //demo data to append
      pdListHtml += '<div class=\"pdList\" style="background:lightblue">prdNm :' + goods[i].goods_name + ' <br/>dispPrc :' + goods[i].goods_origin_price + '</div>'
    
    
    }
    //add data under pdImgType class 
    $(".pdImgType").html(pdListHtml);
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    
    <ul class="pdImgType">
      <c:forEach var="goods" items="${goods}">
        <div class="pdList">
          <pt:product prdNm="${goods.goods_name}" dispPrc="${goods.goods_origin_price }" />
        </div>
      </c:forEach>
    </ul>