自定义DTO内的映射请求参数和字段? [英] Customize mapping request parameters and fields inside the DTO ?

问题描述

我有以下课程:

public class MyDTO { 

       private String kiosk;
       ...
}

以及以下网址:

http://localhost:1234/mvc/controllerUrl?kiosk=false

以及以下控制器方法:

@RequestMapping(method = RequestMethod.GET, produces = APPLICATION_JSON)
@ResponseBody
public ResponseEntity<List<?>> getRequestSupportKludge(final MyDTO myDTO, BindingResult bindingResult) {
    ...
}

现在它可以正常工作，并且布尔值字段可以正确解析.

Now it is working nice and boolean field resolves properly.

现在url参数已更改如下:

Now url parameter has changed like this:

http://localhost:1234/mvc/controllerUrl?new_kiosk=false

我不想在DTO内更改参数名称.有没有办法说弹簧来理解new_kiosk请求参数值应该放在kiosk字段中?

I don't want to change parameter name inside the DTO. Is there way to say spring to understand that new_kiosk request parameter value should be put into kiosk field ?

推荐答案

除了设置其他设置器之外，您还可以通过创建自定义参数解析器来处理该问题.有几种方法可以解决，但是已经有充分讨论的

Apart from setting an additional setter you can hande the case by making a custom argument resolver. There's a few ways you can go about it, but there's already a well discussed post. If I were you I would focus on the jkee's answer. Follow it step by step, and than all you should do is annotate your DTO with something like,

public class MyDTO { 

       @ParamName("new_kiosk")
       private String kiosk;
       ...
}

请注意，即使您无法更改MyDTO类，也仍然可以遵循自定义解析程序路线.在此帖子中，我已经回答了如何编写参数类型注释.结合这两个帖子，您可以轻松地提出一个注释，例如@ParamMapper，它将定义从请求到属性的映射.想像

Note that even if you can't change MyDTO class, you can still follow a custom resolver route. In this post I've answered how you can write a parameter type annotation. Combining the two post you can easily come up with an annotation e.g. @ParamMapper that would define the mapping from request to properties. Think of something like

 getRequestSupportKludge(@ParamMapper("new_kiosk;kiosk") MyDTO myDTO, BindingResult bindingResult)

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