SpringMVC从动态表单输入获取值具有相同的名称

Question

这是index.jsp页面：

<form method="post">
    <select name="channel">
        <option>Star Movie</option>
        <option>HBO</option>
        ...
        //More television channel option
    </select>
    <select name="channel">
        <option>Star Movie</option>
        <option>HBO</option>
        ...
        //More television channel option
    </select>
    ...
    //More select input added dynamic by user
    <button class="btn-add" >Add channel</button>
    <input type="submit" value="Submit"/>
</form>

这是我的控制器

@RequestMapping(value = "/channelReview", method = RequestMethod.POST)
ModelAndView actionChannelReview(@RequestParam("channel") String[] channelLst){
    ...
    //Do something else
}

这里的问题是为什么channelLst只有1个元素，并且无论表单上有多少用户添加，它始终是表单上的最后一个值。

Answer 1

我没有遇到任何问题，我使用了您提到的相同代码，在channelLst中有2个频道

我还添加了动态下拉菜单，可以处理任意数量的下拉菜单

Answer 2

 <form method="post">
        <select name="channel">
            <option value="1">Star Movie</option>
            <option value="2">HBO</option>
            ...
            //More television channel option
        </select>
        <select name="channel">
            <option value="3">Star Movie</option>
            <option value="4">HBO</option>
            ...
            //More television channel option
        </select>
        ...
        //More select input added dynamic by user
        <button class="btn-add" >Add channel</button>
        <input type="submit" value="Submit"/>
    </form>

现在您将获得值...... vale 属性不是您给定的