解决main启动报Kotlin: Language version 1.1 is no longer supported错误的问题

chenyue1993 · Oct 10, 2021 · 3b4e620 · 3b4e620
1 parent a1e6818
commit 3b4e620
Show file tree

Hide file tree

Showing 4 changed files with 9 additions and 4 deletions.
diff --git a/pom.xml b/pom.xml
@@ -85,7 +85,7 @@
 				<module>spring-boot-project</module>
 				<!-- Samples are built via the invoker plugin -->
 				<!--新增spring-boot-samples模块-->
-				<!--<module>spring-boot-samples</module>-->
+				<module>spring-boot-samples</module>
 				<module>spring-boot-samples-invoker</module>
 				<module>spring-boot-tests</module>
 			</modules>

diff --git a/...src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationImportSelector.java b/...src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationImportSelector.java
@@ -493,7 +493,8 @@ public Iterable<Entry> selectImports() {
 					.collect(Collectors.toCollection(LinkedHashSet::new));
 			// 移除掉要排除的自动配置类
 			processedConfigurations.removeAll(allExclusions);
-			// 对标注有@Order注解的自动配置类进行排序，
+			// 对标注有@AutoConfigureOrder，@AutoConfigureBefore @AutoConfigureAfter注解的自动配置类进行排序，
+			// 【注意】@AutoConfigureOrder，@AutoConfigureBefore @AutoConfigureAfter注解能改变spring.factories中的@Configuration的顺序，并不能决定@Configuration的bean的加载顺序。TODO 自己做个试验
 			return sortAutoConfigurations(processedConfigurations,
 					getAutoConfigurationMetadata())
 							.stream()

diff --git a/...nfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationSorter.java b/...nfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationSorter.java
@@ -57,13 +57,13 @@ public List<String> getInPriorityOrder(Collection<String> classNames) {
 		List<String> orderedClassNames = new ArrayList<>(classNames);
 		// Initially sort alphabetically
 		Collections.sort(orderedClassNames);
-		// Then sort by order
+		// Then sort by order 对@AutoConfigureOrder进行排序，其中getOrder()方法获取@AutoConfigureOrder的顺序数值
 		orderedClassNames.sort((o1, o2) -> {
 			int i1 = classes.get(o1).getOrder();
 			int i2 = classes.get(o2).getOrder();
 			return Integer.compare(i1, i2);
 		});
-		// Then respect @AutoConfigureBefore @AutoConfigureAfter
+		// Then respect @AutoConfigureBefore @AutoConfigureAfter  对@AutoConfigureBefore @AutoConfigureAfter进行排序
 		orderedClassNames = sortByAnnotation(classes, orderedClassNames);
 		return orderedClassNames;
 	}

diff --git a/编译构建启动问题 b/编译构建启动问题
@@ -0,0 +1,4 @@
+Spring源码编译过程中出现Kotlin: Language version 1.1 is no longer supported； please, use version 1.2
+
+按照这个文档https://blog.csdn.net/qq_42223569/article/details/114073404
+在file->project structure->module中选中spring-boot和spring-boot-test的kotlin，选1.2版本即可解决