Spring MVC中作为RequestParam的对象列表 [英] List of Objects as RequestParam in Spring MVC

问题描述

我想通过 POST 向对象发送一个对象ID列表（由用户选择复选框生成），这样我就可以得到一个 java.util.List< MyObject> 使用 MyObjectEditor 转换。

I want to send a list of object id's (generated by the user selecting checkboxes) by POST to an action, so I can get a java.util.List<MyObject> converted using an MyObjectEditor.

那么，是否可以这样做？

So, is it possible to do this?

@InitBinder
public void initBinder (WebDataBinder binder) {
    binder.registerCustomEditor(MyObject.class, new MyObjectEditor());
}
@RequestMapping (value = "", method = RequestMethod.POST)
public String action (@RequestParam List<MyObject> myList, Model model) {
    // more stuff here
}

我的POST就像这样：

And my POST would be like this:

myList[0] = 12
myList[1] = 15
myList[2] = 7

谢谢！

推荐答案

@RequestParam 不支持这种绑定，因此您必须使用 @ModelAttribute ：

This kind of binding is not supported by @RequestParam, so you have to use @ModelAttribute:

class MyObjects {
    private List<MyObject> myList;
    ...
}

public String action (@ModelAttribute MyObjects myObjects, Model model) { ... }

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