Add API versioning reference documentation

See gh-34569

framework-docs/src/main/java/org/springframework/docs/web/webmvc/mvcconfig/mvcconfigapiversion/WebConfiguration.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2002-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.docs.web.webmvc.mvcconfig.mvcconfigapiversion;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.ApiVersionConfigurer;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+// tag::snippet[]
+@Configuration
+public class WebConfiguration implements WebMvcConfigurer {
+
+	@Override
+	public void configureApiVersioning(ApiVersionConfigurer configurer) {
+		configurer.useRequestHeader("X-API-Version");
+	}
+}
+// end::snippet[]

framework-docs/src/main/kotlin/org/springframework/docs/web/webmvc/mvcconfig/mvcconfigapiversion/WebConfiguration.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2002-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.docs.web.webmvc.mvcconfig.mvcconfigapiversion
+
+import org.springframework.context.annotation.Configuration
+import org.springframework.web.servlet.config.annotation.ApiVersionConfigurer
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer
+
+// tag::snippet[]
+@Configuration
+class WebConfiguration : WebMvcConfigurer {
+
+	override fun configureApiVersioning(configurer: ApiVersionConfigurer) {
+		configurer.useRequestHeader("X-API-Version")
+	}
+}
+// end::snippet[]