适配windows编码后的最终版

pom.xml

@@ -2,30 +2,69 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
+  <modelVersion>4.0.0</modelVersion>
 
-    <groupId>com.scapeSharing</groupId>
-    <artifactId>Quiz_Generator_personal</artifactId>
-    <version>1.0-SNAPSHOT</version>
+  <groupId>com.scapeSharing</groupId>
+  <artifactId>Quiz_Generator_personal</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.13.0</version>
+        <configuration>
+          <source>17</source>
+          <target>17</target>
+          <encoding>UTF-8</encoding>
+        </configuration>
+      </plugin>
 
-    <properties>
-        <maven.compiler.source>17</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    </properties>
-    <dependencies>
-        <dependency>
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-            <version>1.18.30</version>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-core</artifactId>
-            <version>6.2.10</version>
-        </dependency>
+      <!-- 打包成可执行的 fat jar -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-shade-plugin</artifactId>
+        <version>3.6.0</version>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>shade</goal>
+            </goals>
+            <configuration>
+              <transformers>
+                <transformer
+                  implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                  <mainClass>com.quizgenerator.system.QuizApplication</mainClass>
+                </transformer>
+              </transformers>
+              <createDependencyReducedPom>false</createDependencyReducedPom>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 
-    </dependencies>
+  <properties>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+  <dependencies>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.30</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-core</artifactId>
+      <version>6.2.10</version>
+    </dependency>
+
+
+  </dependencies>
 
 </project>

src/main/java/com/quizgenerator/service/UserService.java

@@ -17,15 +17,16 @@ public class UserService {
   public User login(String username, String password) {
     // 1. 调用修改后的 findByUsername。如果用户不存在，这里会得到 null
     User user = UserDataBase.findByUsername(username);
+    if (user == null) {
+      return null;
+    }
 
     // 2. 检查用户密码是否匹配
     password = DigestUtils.md5DigestAsHex(password.getBytes());
     if (user.getPassword().equals(password)) {
       // 登录成功，返回找到的 user 对象
       return user;
-    } else {
-      // 用户不存在或密码错误，返回 null
-      return null;
     }
+    return null;
   }
 }

src/main/java/com/quizgenerator/system/ConsoleUi.java

@@ -2,6 +2,7 @@ package com.quizgenerator.system;
 
 import com.quizgenerator.common.Level;
 import com.quizgenerator.entity.User;
+import java.nio.charset.Charset;
 import java.util.Scanner;
 
 /** UI界面. */
@@ -10,7 +11,21 @@ public class ConsoleUi {
 
   /** 输入. */
   public ConsoleUi() {
-    this.scanner = new Scanner(System.in);
+    // 自动检测控制台编码：Windows 通常为 GBK，其他系统为 UTF-8
+    String consoleEncoding = detectConsoleEncoding();
+    this.scanner = new Scanner(System.in, consoleEncoding);
+  }
+
+  /** 检测控制台编码（主要解决 Windows 中文乱码问题）. */
+  private String detectConsoleEncoding() {
+    String os = System.getProperty("os.name").toLowerCase();
+    if (os.contains("win")) {
+      // Windows 系统控制台默认使用 GBK（代码页 936）
+      return "GBK";
+    } else {
+      // Linux / macOS 终端通常使用 UTF-8
+      return Charset.defaultCharset().name();
+    }
   }
 
   /** 主界面展示. */
@@ -27,7 +42,13 @@ public class ConsoleUi {
    */
   public String[] promptForCredentials() {
     System.out.print("请输入用户名和密码 (用空格隔开): ");
-    return scanner.nextLine().split(" ");
+    String line = scanner.nextLine().trim();
+    // 至少保证返回长度为2的数组，避免后续 IndexOutOfBoundsException
+    String[] parts = line.split(" ", 2); // 最多 split 成 2 部分（支持密码含空格）
+    if (parts.length < 2) {
+      return new String[] {"", ""}; // 触发格式错误
+    }
+    return parts;
   }
 
   /** 错误信息. */