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/1.1

Accept: application/json

ApiVersion: V1

== or ==

GET /my/rest/path HTTP/1.1

Accept: application/json

ApiVersion: 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