如何處理沒有綁定對象的多行窗體在春天MVC

Question

我不知道要完美地構造我的問題，但我試圖從HTML多行窗體中獲取數據，我不想使用綁定對象和我不想在我的請求處理方法上有很多@RequestParam參數。我想表單提交返回一個int數組，但我得到以下錯誤HTTP Status 400 - Required int[] parameter 'department' is not present。我試着寫形式以同樣的方式人會做在PHP這樣的：

<form action="processForm" method="POST"> 
<select name="department[]"> 
    <option value="NONE">---SELECT---</option> 
    <c:forEach items="${departments}" var="department"> 
    <option value="${department.getId()}">${department.getName()}</option> 
    </c:forEach> 
</select> 
<select name="department[]"> 
    <option value="NONE">---SELECT---</option> 
    <c:forEach items="${departments}" var="department"> 
    <option value="${department.getId()}">${department.getName()}</option> 
    </c:forEach> 
</select> 
<select name="department[]"> 
    <option value="NONE">---SELECT---</option> 
    <c:forEach items="${departments}" var="department"> 
    <option value="${department.getId()}">${department.getName()}</option> 
    </c:forEach> 
</select> 
<select name="department[]"> 
    <option value="NONE">---SELECT---</option> 
    <c:forEach items="${departments}" var="department"> 
    <option value="${department.getId()}">${department.getName()}</option> 
    </c:forEach> 
</select> 
</form> 

我控制器請求映射方法有提前如下

@Request(value = "/form",nethod = RequestMethod.GET) 
public String renderForm(){ 
    return "form" 
} 

@Request(value = "processForm", method = RequestMethod.POST) 
public String processForm(@RequestParam("department") int [] department){ 
    for (int i=0;i<department.lenth;i++){ 
     System.out.println(department[i]); 
    } 
} 

感謝你。

Answer 1

更改@RequestParam到@RequestParam("department[]")

@Request(value = "processForm", method = RequestMethod.POST) 
public String processForm(@RequestParam("department[]") int [] department){ 
    for (int i=0;i<department.lenth;i++){ 
     System.out.println(department[i]); 
    } 
}