1，配置

.idea/encodings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with NO BOM" />
+</project>

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_10" default="false" project-jdk-name="10" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_10" default="false" project-jdk-name="11" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

GDMS.iml

@@ -17,13 +17,13 @@
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
     </content>
-    <orderEntry type="inheritedJdk" />
+    <orderEntry type="jdk" jdkName="11" jdkType="JavaSDK" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" scope="PROVIDED" name="Tomcat 8.5.37" level="application_server_libraries" />
     <orderEntry type="module-library">
       <library>
         <CLASSES>
-          <root url="jar://C:/Program Files/Apache Software Foundation/Tomcat 8.5/lib/tomcat-jdbc.jar!/" />
+          <root url="jar://D:/software engineering/tomcat/apache-tomcat-8.5.37/lib/tomcat-jdbc.jar!/" />
         </CLASSES>
         <JAVADOC />
         <SOURCES />