Add spring.resources.cachePeriod to MvcAutoConfiguration

Fixes gh-232

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration.java

@@ -122,6 +122,9 @@ public class WebMvcAutoConfiguration {
 		@Value("${spring.view.suffix:}")
 		private String suffix = "";
 
+		@Value("${spring.resources.cachePeriod:}")
+		private Integer cachePeriod;
+
 		@Autowired
 		private ListableBeanFactory beanFactory;
 
@@ -193,12 +196,14 @@ public class WebMvcAutoConfiguration {
 		@Override
 		public void addResourceHandlers(ResourceHandlerRegistry registry) {
 			if (!registry.hasMappingForPattern("/webjars/**")) {
-				registry.addResourceHandler("/webjars/**").addResourceLocations(
-						"classpath:/META-INF/resources/webjars/");
+				registry.addResourceHandler("/webjars/**")
+						.addResourceLocations("classpath:/META-INF/resources/webjars/")
+						.setCachePeriod(this.cachePeriod);
 			}
 			if (!registry.hasMappingForPattern("/**")) {
-				registry.addResourceHandler("/**").addResourceLocations(
-						RESOURCE_LOCATIONS);
+				registry.addResourceHandler("/**")
+						.addResourceLocations(RESOURCE_LOCATIONS)
+						.setCachePeriod(this.cachePeriod);
 			}
 		}
 

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/AutoConfigurationReportLoggingInitializerTests.java

@@ -208,7 +208,9 @@ public class AutoConfigurationReportLoggingInitializerTests {
 	}
 
 	@Configuration
-	@Import({ WebMvcAutoConfiguration.class, HttpMessageConvertersAutoConfiguration.class })
+	@Import({ WebMvcAutoConfiguration.class,
+			HttpMessageConvertersAutoConfiguration.class,
+			PropertyPlaceholderAutoConfiguration.class })
 	static class Config {
 
 	}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/mobile/DeviceResolverAutoConfigurationTests.java

@@ -21,6 +21,7 @@ import java.util.List;
 
 import org.junit.After;
 import org.junit.Test;
+import org.springframework.boot.autoconfigure.PropertyPlaceholderAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.HttpMessageConvertersAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration;
 import org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext;
@@ -78,7 +79,8 @@ public class DeviceResolverAutoConfigurationTests {
 		AnnotationConfigEmbeddedWebApplicationContext context = new AnnotationConfigEmbeddedWebApplicationContext();
 		context.register(Config.class, WebMvcAutoConfiguration.class,
 				HttpMessageConvertersAutoConfiguration.class,
-				DeviceResolverAutoConfiguration.class);
+				DeviceResolverAutoConfiguration.class,
+				PropertyPlaceholderAutoConfiguration.class);
 		context.refresh();
 		RequestMappingHandlerMapping mapping = (RequestMappingHandlerMapping) context
 				.getBean("requestMappingHandlerMapping");

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfigurationTests.java

@@ -28,6 +28,7 @@ import org.junit.After;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
+import org.springframework.boot.autoconfigure.PropertyPlaceholderAutoConfiguration;
 import org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext;
 import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizerBeanPostProcessor;
 import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory;
@@ -78,7 +79,8 @@ public class WebMvcAutoConfigurationTests {
 	public void handerAdaptersCreated() throws Exception {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext();
 		this.context.register(Config.class, WebMvcAutoConfiguration.class,
-				HttpMessageConvertersAutoConfiguration.class);
+				HttpMessageConvertersAutoConfiguration.class,
+				PropertyPlaceholderAutoConfiguration.class);
 		this.context.refresh();
 		assertEquals(3, this.context.getBeanNamesForType(HandlerAdapter.class).length);
 		assertFalse(this.context.getBean(RequestMappingHandlerAdapter.class)
@@ -92,7 +94,8 @@ public class WebMvcAutoConfigurationTests {
 	public void handerMappingsCreated() throws Exception {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext();
 		this.context.register(Config.class, WebMvcAutoConfiguration.class,
-				HttpMessageConvertersAutoConfiguration.class);
+				HttpMessageConvertersAutoConfiguration.class,
+				PropertyPlaceholderAutoConfiguration.class);
 		this.context.refresh();
 		assertEquals(6, this.context.getBeanNamesForType(HandlerMapping.class).length);
 	}
@@ -101,7 +104,8 @@ public class WebMvcAutoConfigurationTests {
 	public void resourceHandlerMapping() throws Exception {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext();
 		this.context.register(Config.class, WebMvcAutoConfiguration.class,
-				HttpMessageConvertersAutoConfiguration.class);
+				HttpMessageConvertersAutoConfiguration.class,
+				PropertyPlaceholderAutoConfiguration.class);
 		this.context.refresh();
 		Map<String, List<Resource>> mappingLocations = getMappingLocations();
 		assertThat(mappingLocations.get("/**").size(), equalTo(5));
@@ -114,7 +118,8 @@ public class WebMvcAutoConfigurationTests {
 	public void resourceHandlerMappingOverrideWebjars() throws Exception {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext();
 		this.context.register(WebJars.class, Config.class, WebMvcAutoConfiguration.class,
-				HttpMessageConvertersAutoConfiguration.class);
+				HttpMessageConvertersAutoConfiguration.class,
+				PropertyPlaceholderAutoConfiguration.class);
 		this.context.refresh();
 		Map<String, List<Resource>> mappingLocations = getMappingLocations();
 		assertThat(mappingLocations.get("/webjars/**").size(), equalTo(1));
@@ -127,7 +132,8 @@ public class WebMvcAutoConfigurationTests {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext();
 		this.context.register(AllResources.class, Config.class,
 				WebMvcAutoConfiguration.class,
-				HttpMessageConvertersAutoConfiguration.class);
+				HttpMessageConvertersAutoConfiguration.class,
+				PropertyPlaceholderAutoConfiguration.class);
 		this.context.refresh();
 		Map<String, List<Resource>> mappingLocations = getMappingLocations();
 		assertThat(mappingLocations.get("/**").size(), equalTo(1));