如何在Spring MVC中處理沒有綁定對象的多行表單

Question

我不知道如何完美地構造我的問題，但是我試圖從html多行表單中獲取數據，並且我不想使用綁定對象，也不想在我的請求處理方法中有很多@RequestParam參數。 我希望表單提交返回一個int數組，但出現以下錯誤HTTP Status 400 - Required int[] parameter 'department' is not present 。 我試着以與在php中一樣的方式編寫表單，如下所示：

<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>

我的控制器請求映射方法如下

@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]);
    }
}

預先謝謝你。

Answer 1

將@RequestParam更改為@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]);
    }
}