Thymeleaf th：字段不接受标记，它不显示数据

Question

在我使用Spring boot和Thymeleaf的项目中,我尝试以表格格式发布一个值列表,

1）我列出一个实体清单，

List<EntFlatIncome> flatIncomeList

2）设置为包装类，

WrpFlatIncome wrpFlatIncome = new WrpFlatIncome();
            wrpFlatIncome.setFlatIncomeList(flatIncomeList);

ModelAndView modelView = new ModelAndView("ApproveBillList");
modelView.addObject("wrpflatIncome", wrpFlatIncome);

<td>
       <label th:field="*{flatIncomeList[__${status.index}__].billAmount}"
      th:text="*{flatIncomeList[__${status.index}__].billAmount}"></label>
      </td>

如果我在输入框中输入th：field with disabled attibute意味着它也只传递NULL，请帮助我…谢谢

下面是完整的HTML代码

<div class="panel-body">
		<!-- Body Content Starts -->
		<form id="billformid" action="#"  method="post" th:action="@{/updatebill}" th:object="${wrpflatIncome}">
		
		<div class="table-responsive table-responsive-md"> 
	
	<table class="table table-hover">
	<thead>
	    <tr>
	  <th>isApproved</th>   
      <th>paidAmount</th>
      <th>paidDate</th>
      <th>paymentMode</th>
      <th>transactionId</th>
      <th>Bill Amount</th>
      
    </tr>
    </thead>
    
    <tbody>
    <tr th:each="flatIncomeList,status:*{flatIncomeList}" 
    th:if="${not #lists.isEmpty(wrpflatIncome.flatIncomeList)}">
    
       <td hidden="true">
      <input class="form-control" type="text"
       th:field="*{flatIncomeList[__${status.index}__].billId}"/>
      </td> 
      
      
       <td>
      <input type="checkbox" class="form-check-input"  
       th:field="*{flatIncomeList[__${status.index}__].isApproved}"/>
      </td> 
      
      <td th:field="*{flatIncomeList[__${status.index}__].paidAmount}">
      <label 
      th:text="*{flatIncomeList[__${status.index}__].paidAmount}"></label>
      </td>
      
      <td th:field="*{flatIncomeList[__${status.index}__].paidDate}">
       <label 
      th:text="*{flatIncomeList[__${status.index}__].paidDate}"></label>
      </td> 
      
      <td th:field="*{flatIncomeList[__${status.index}__].paymentMode}">
       <label 
      th:text="*{flatIncomeList[__${status.index}__].paymentMode}"></label>
      </td> 
      
      <td th:field="*{flatIncomeList[__${status.index}__].transactionId}">
       <label 
      th:text="*{flatIncomeList[__${status.index}__].transactionId}"></label>
      </td> 
      
       <td>
       <label th:field="*{flatIncomeList[__${status.index}__].billAmount}"
      th:text="*{flatIncomeList[__${status.index}__].billAmount}"></label>
      </td> 
      
      <!-- version not shown in html -->
        <td hidden="true">
      <input class="form-control" type="text"
       th:field="*{flatIncomeList[__${status.index}__].version}"/>
      </td> 
    </tr>
    </tbody>
    
	</table>
	</div>
	
	<div class="text-center">
	<button type="submit" class="btn btn-primary">Submit</button>
	<button type="reset" class="btn btn-danger">Reset</button>
	</div>
		
		
		
		</form>
		<!-- Body Content Ends -->
			</div>

@控制器

@PostMapping("/updatebill")
public ModelAndView doUpdateBillApproveStatus(@ModelAttribute WrpFlatIncome wrpflatIncome) 
{
    ModelAndView modelView = new ModelAndView();
    try {
        if(wrpflatIncome.getFlatIncomeList()!=null) {

            //Boolean result = serbillSave.doUpdateApprovedBillList(wrpflatIncome.getFlatIncomeList());
        }

    } catch (Exception e) {
        // TODO: handle exception
        e.printStackTrace();
    }
    return modelView;
}

Answer 1

不应在label或td上使用th:field属性。它不会像预期的那样工作；浏览器不会提交这些元素的任何数据。

相反，您应该使用inputs。它可以是只读的：

<input type="text" th:field="*{myField}" readonly="readonly"/>

或隐藏：

<input type="hidden" th:field="*{myField}"/>