java 在Spring MVC中将文件路径作为@PathVariable发送
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Send file path as @PathVariable in Spring MVC
提问by J-Alex
There is a task to pass file path as @PathVariablein Spring MVC to REST Service with GETrequest.
有一项任务是将文件路径与@PathVariableSpring MVC 中的文件路径一起传递给带有GET请求的REST 服务。
We can easily do it with POSTsending String of file path in JSON.
我们可以POST通过在 JSON 中发送文件路径的字符串轻松做到这一点。
How we can do with GETrequest and @Controllerlike this?
我们如何处理GET请求并@Controller像这样？
@RequestMapping(value = "/getFile", method = RequestMethod.GET)
public File getFile(@PathVariable String path) {
// do something
}
Request:
要求：
GET /file/getFile/"/Users/user/someSourceFolder/8.jpeg"
Content-Type: application/json
采纳答案by Byeon0gam
Ok. you use to get pattern. sending get pattern url.
行。你用来获取模式。发送获取模式网址。
Use @RequestParam.
使用@RequestParam。
@RequestMapping(value = "/getFile", method = RequestMethod.GET)
public File getFile(@RequestParam("path") String path) {
// do something
}
and if you use @PathVariable.
如果你使用@PathVariable。
@RequestMapping(value = "/getFile/{path}", method = RequestMethod.POST)
public File getFile(@PathVariable String path) {
// do something
}
回答by Blank
You should define your controller like this:
你应该像这样定义你的控制器：
@RequestMapping(value = "/getFile/{path:.+}", method = RequestMethod.GET)
public File getFile(@PathVariable String path) {
// do something
}
回答by N. Chicoine
What I did works with relative paths to download/upload files in Spring.
我所做的是使用相对路径在 Spring 中下载/上传文件。
@RequestMapping(method = RequestMethod.GET, path = "/files/**")
@NotNull
public RepositoryFile get(@PathVariable final String repositoryId,
@PathVariable final String branchName,
@RequestParam final String authorEmail,
HttpServletRequest request) {
String filePath = extractFilePath(request);
....
}
And the utilitary function I created within the controller :
我在控制器中创建的实用函数：
private static String extractFilePath(HttpServletRequest request) {
String path = (String) request.getAttribute(
HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE);
String bestMatchPattern = (String) request.getAttribute(
HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE);
AntPathMatcher apm = new AntPathMatcher();
return apm.extractPathWithinPattern(bestMatchPattern, path);
}
