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() {
    }
}

针对此类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，但可以在a Spring boot tutorial中看到。

Answer 2

完全是：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);
}

您在这里获得文档： adding custom header

如何根据HTTP标头值在RestController之间切换？

2 个答案: