如何根据HTTP标头值在RestControllers之间切换？

Question

我们正在考虑使用标头字段在我们的Spring Boot应用程序中指定REST API版本。我们如何告诉Spring Boot根据标头值重定向呼叫？我梦到这样的事情：@Path("/my/rest/path")@HeaderMapping(headerName="ApiVersion", headerValue="V1")public class V1Controller {    @GetMapping    public String myMethod() {    }}== and ==@Path("/my/rest/path")@HeaderMapping(headerName="ApiVersion", headerValue="V2")public class V2Controller {    @GetMapping    public String myMethod() {    }}对于这样的HTTP请求：GET /my/rest/path HTTP/1.1Accept: application/jsonApiVersion: V1== or ==GET /my/rest/path HTTP/1.1Accept: application/jsonApiVersion: V2

Answer 1

这似乎可行：

@Path("/my/rest/path")

public class V1Controller {

    @GetMapping(headers = "ApiVersion=V1")

    public String myMethod() {

    }

}

== and ==

@Path("/my/rest/path")

public class V2Controller {

    @GetMapping(headers = "ApiVersion=V2")

    public String myMethod() {

    }

}

PS：尚未测试，但已在Spring引导教程中看到。

Answer 2

确实是：例如

PUT method #1

@RequestMapping(method=RequestMethod.PUT, value="/foo", 

headers="returnType=Foo")

public @ResponseBody Foo updateFoo(@RequestBody Foo foo) {

fooService.update(foo);

}

//PUT method #2

@RequestMapping(method=RequestMethod.PUT, value="/foo", 

headers="returnType=FooExtra")

public @ResponseBody FooExtra updateFoo(@RequestBody FooExtra fooExtra) {

fooService.update(fooExtra);

}

在这里您可以获得文档： 添加自定义标头