1.html

添加 th:fragment=“formfragment”,值与id保持一致

 <div th:fragment="formFragment" id="formFragment">
     <form id="form" th:object="${pojoName}">
         <div th:if="${pojoName.id != null}">
             <h2>报关总金额</h2>
             <table>
                 <tr>
                     <td align="right">货值总额</td>
                     <td>
                         <input type="text"  th:field="*{totalPrice}"/>
                     </td>
                     <td align="right">总佣金</td>
                     <td>
                         <input th:field="*{totalUsePrice}"/>
                     </td>
                     <td align="right">总运费</td>
                     <td>
                         <input type="text"   th:field="*{fee}" />
                     </td>
                     <td align="right">总less金额</td>
                     <td>
                         <input type="text"  th:field="*{lessPrice}" />
                     </td>
                 </tr>
             </table>
         </div>
     </form>
 </div>

2.js

    function refreshFragment(headid) {
         $.ajax({
            url: ctxPath + "/member/input/formFragment?" + "headId=" + headid,
            type: "post",
            success: function (data) {
                $("#formFragment").html(data);
            }

        })
    }

3.java

    @PostMapping(value = "/formFragment")
     public String loadHead(@RequestParam(name = "headId") String headId, ModelMap model) {
         TZcwlHead head = inputService.getById(headId);
         model.addAttribute("pojoName", head);
         return "member/input/editUltra::tydjefragment";
     }