Spring MVC:@RequestMapping:如何捕获Map参数?

问题描述

我有用于处理表单提交的控制器方法:

I have the controller method for processing form submitting:

@RequestMapping(method = {RequestMethod.POST})
    public String submitForm(...){...}

但是，我有一个新的测试用例:

But, I have got a new test case:

如果Form具有参数ProductData，则调用控制器方法submitFormWithProductData.我为此遇到了困难，因为ProductData是Map.表单标签中站点ProductData"字段上的内容如下:

If Form has parameter ProductData call controller method submitFormWithProductData. and I am facing difficulties with this, because ProductData is a Map. On Site ProductData field in form tag looks like:

<input type="text" name="productData['param1']">
<input type="text" name="productData['param2']">

我不知道如何为submitFormWithProductData方法创建正确的@RequestMapping注释.

And I don't know, how to create right @RequestMapping annotation for submitFormWithProductData method.

我尝试过:

@RequestMapping(method = {RequestMethod.POST}, params="productData")

和

@RequestMapping(method = {RequestMethod.POST}, params="productData[]")

但是我没有成功.

推荐答案

productData必须是模型对象的属性.

productData has to be a property of a model object.

public class FormModel {
    private Map<String,String> productData = ...;
    ...
}

为此，您必须创建一个类似的处理程序方法:

according to this you have to create a handler method like that:

@RequestMapping(....)
public String submitFormWithProductData(FormModel formModel) {
  ....
}

Spring会自动将productData参数绑定到FormModel对象中的相应属性.

Spring will automatically bind the productData parameters to the according property in the FormModel object.

但我不知道您为什么要以不同的方式处理它.您可以添加一个隐藏的输入字段productDataSubmitted并添加以下处理程序:

But I don't know why you want to handle it differently. You could add a hidden input field productDataSubmitted and add the following handler:

@RequestMapping(method = {RequestMethod.POST}, params="productDataSubmitted")

这篇关于Spring MVC:@RequestMapping:如何捕获Map参数?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！