feat: 切换jdk编译实现

.idea/misc.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="KubernetesApiProvider"><![CDATA[{}]]></component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_25" default="true" project-jdk-name="openjdk-25" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="corretto-1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

new-math-cli.iml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />

src/Main.java

@@ -34,14 +34,14 @@ public class Main {
 
         String[] input = line.split(" ");
         if (input.length == 2) {
-            authService.login(input[0], input[1]).ifPresentOrElse(
-                    user -> {
-                        currentUser = user;
-                        currentLevel = user.getLevel();
-                        System.out.printf("当前选择为%s出题%n", currentLevel.getName());
-                    },
-                    () -> System.out.println("请输入正确的用户名、密码")
-            );
+            User user = authService.login(input[0], input[1]).orElse(null);
+            if (user != null) {
+                currentUser = user;
+                currentLevel = user.getLevel();
+                System.out.printf("当前选择为%s出题%n", currentLevel.getName());
+            } else {
+                System.out.println("请输入正确的用户名、密码");
+            }
         } else {
             System.out.println("输入格式不正确，请重新输入。");
         }