Add configuration property for Jackson's DateTimeFeature

See gh-45535

documentation/spring-boot-docs/src/docs/antora/modules/how-to/pages/spring-mvc.adoc

@@ -70,6 +70,10 @@ These features are described in several enums (in Jackson) that map onto propert
 | `spring.jackson.datatype.json-node.<feature_name>`
 | `true`, `false`
 
+| javadoc:tools.jackson.databind.DateTimeFeature[]
+| `spring.jackson.datetime.<feature_name>`
+| `true`, `false`
+
 | javadoc:tools.jackson.databind.DeserializationFeature[]
 | `spring.jackson.deserialization.<feature_name>`
 | `true`, `false`

module/spring-boot-jackson/src/main/java/org/springframework/boot/jackson/autoconfigure/JacksonAutoConfiguration.java

@@ -175,6 +175,7 @@ public final class JacksonAutoConfiguration {
 				configureFeatures(builder, this.jacksonProperties.getMapper(), builder::configure);
 				configureFeatures(builder, this.jacksonProperties.getRead(), builder::configure);
 				configureFeatures(builder, this.jacksonProperties.getWrite(), builder::configure);
+				configureFeatures(builder, this.jacksonProperties.getDatetime(), builder::configure);
 				configureFeatures(builder, this.jacksonProperties.getDatatype().getEnum(), builder::configure);
 				configureFeatures(builder, this.jacksonProperties.getDatatype().getJsonNode(), builder::configure);
 				configureDateFormat(builder);

module/spring-boot-jackson/src/main/java/org/springframework/boot/jackson/autoconfigure/JacksonProperties.java

@@ -30,6 +30,7 @@ import tools.jackson.core.json.JsonWriteFeature;
 import tools.jackson.databind.DeserializationFeature;
 import tools.jackson.databind.MapperFeature;
 import tools.jackson.databind.SerializationFeature;
+import tools.jackson.databind.cfg.DateTimeFeature;
 import tools.jackson.databind.cfg.EnumFeature;
 import tools.jackson.databind.cfg.JsonNodeFeature;
 
@@ -90,6 +91,11 @@ public class JacksonProperties {
 	 */
 	private final Map<JsonWriteFeature, Boolean> write = new EnumMap<>(JsonWriteFeature.class);
 
+	/**
+	 * Jackson on/off features for DateTime processing.
+	 */
+	private final Map<DateTimeFeature, Boolean> datetime = new EnumMap<>(DateTimeFeature.class);
+
 	/**
 	 * Controls the inclusion of properties during serialization. Configured with one of
 	 * the values in Jackson's JsonInclude.Include enumeration.
@@ -160,6 +166,10 @@ public class JacksonProperties {
 		return this.write;
 	}
 
+	public Map<DateTimeFeature, Boolean> getDatetime() {
+		return this.datetime;
+	}
+
 	public JsonInclude.@Nullable Include getDefaultPropertyInclusion() {
 		return this.defaultPropertyInclusion;
 	}

module/spring-boot-jackson/src/test/java/org/springframework/boot/jackson/autoconfigure/JacksonAutoConfigurationTests.java

@@ -41,6 +41,7 @@ import tools.jackson.databind.SerializationFeature;
 import tools.jackson.databind.ValueSerializer;
 import tools.jackson.databind.cfg.ConstructorDetector;
 import tools.jackson.databind.cfg.ConstructorDetector.SingleArgConstructor;
+import tools.jackson.databind.cfg.DateTimeFeature;
 import tools.jackson.databind.cfg.EnumFeature;
 import tools.jackson.databind.cfg.JsonNodeFeature;
 import tools.jackson.databind.exc.InvalidFormatException;
@@ -262,6 +263,27 @@ class JacksonAutoConfigurationTests {
 		});
 	}
 
+	@Test
+	void enableDatetimeFeature() {
+		this.contextRunner.withPropertyValues("spring.jackson.datetime.write-dates-as-timestamps:true")
+			.run((context) -> {
+				JsonMapper mapper = context.getBean(JsonMapper.class);
+				DateTimeFeature feature = DateTimeFeature.WRITE_DATES_AS_TIMESTAMPS;
+				assertThat(feature.enabledByDefault()).isFalse();
+				assertThat(mapper.isEnabled(feature)).isTrue();
+			});
+	}
+
+	@Test
+	void disableDatetimeFeature() {
+		this.contextRunner.withPropertyValues("spring.jackson.datetime.adjust-dates-to-context-time-zone:false")
+			.run((context) -> {
+				JsonMapper mapper = context.getBean(JsonMapper.class);
+				assertThat(DateTimeFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE.enabledByDefault()).isTrue();
+				assertThat(mapper.isEnabled(DateTimeFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE)).isFalse();
+			});
+	}
+
 	@Test
 	void enableEnumFeature() {
 		this.contextRunner.withPropertyValues("spring.jackson.datatype.enum.write-enums-to-lowercase=true")