java Spring @RequestMapping 处理特殊字符
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Spring @RequestMapping handling of special characters
提问by Ammar
I have a REST API like this:
我有一个这样的 REST API：
@RequestMapping(value = "/services/produce/{_id}", method = RequestMethod.PATCH,
consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
public String patchObject(@RequestBody PatchObjectRequest obj,
@PathVariable("_id") String id) {
// some code
}
My problem is that the id that might be given is in the form:
我的问题是可能给出的 id 格式为：
US%2FCA%2FSF%2FPlastic
Which is a URL encoding of "US/CA/SF/Plastic".
这是“US/CA/SF/Plastic”的 URL 编码。
My problem is that when a % character is put into the URL the @RequestMapping does not map it to this method and it will return a 404. Is there a way to accept ids that have % character in them as part of the URL?
我的问题是，当一个 % 字符被放入 URL 时，@RequestMapping 不会将它映射到这个方法，它会返回一个 404。有没有办法接受其中包含 % 字符的 ID 作为 URL 的一部分？
回答by Victor Dovgaliuc
You are receiving this error because using it as path variable it is decoded and then server tries to match it to a path that doesn't exits. Similar questions where posted a few years ago: How to match a Spring @RequestMapping having a @pathVariable containing "/"?, urlencoded Forward slash is breaking URL.
您收到此错误是因为将其用作路径变量，它被解码，然后服务器尝试将其与不存在的路径匹配。几年前发布的类似问题：如何匹配具有包含“/”的@pathVariable 的 Spring @RequestMapping？, urlencoded 正斜杠正在破坏 URL。
A good option for you would be to change _idfrom @PathVariableto @RequestParamand problem solved, and remove it from path.
你一个很好的选择是改变_id来自@PathVariable于@RequestParam和问题解决，从路径中删除它。
回答by Tony Puthenveettil
Hope you can add regex in the path variable like:
希望您可以在路径变量中添加正则表达式，例如：
@RequestMapping(value = "/services/produce/{_id:.+}",
method = RequestMethod.PATCH,
consumes = MediaType.APPLICATION_JSON_VALUE,
produces = MediaType.APPLICATION_JSON_VALUE)
