新增对UserInfo的支持，修改了users表，fakeUser，用于支持index的渲染的getUserInfo

src/main/java/com/web/web_assignment/DatabaseService.java

@@ -64,7 +64,14 @@ public class DatabaseService {
         String createUsersTable = "CREATE TABLE users (" +
                 "id INT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, " +
                 "username VARCHAR(255) UNIQUE, " +
-                "password VARCHAR(255))";
+                "name VARCHAR(255), " +
+                "password VARCHAR(255), " +
+                "introduction CLOB, " +
+                "interests CLOB, " +
+                "experiences CLOB, " +
+                "skills CLOB, " +
+                "careerGoals CLOB, " +
+                "projects CLOB)";
 
         String createProjectsTable = "CREATE TABLE projects (" +
                 "id INT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, " +
@@ -141,6 +148,46 @@ public class DatabaseService {
         }
     }
 
+
+    // 更新用户信息的方法
+    public void updateUserInfo(String username, UserInfo userInfo) throws SQLException {
+        String sql = "UPDATE users SET introduction = ?, interests = ?, experiences = ?, skills = ?, careerGoals = ?, name = ? WHERE username = ?";
+        try (Connection conn = getConnection();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+
+            stmt.setString(1, userInfo.getIntroduction());
+            stmt.setString(2, userInfo.getInterests());
+            stmt.setString(3, userInfo.getExperiences());
+            stmt.setString(4, userInfo.getSkills());
+            stmt.setString(5, userInfo.getCareerGoals());
+            stmt.setString(6, userInfo.getName());
+            stmt.setString(7, username);
+
+            stmt.executeUpdate();
+        }
+    }
+
+    public UserInfo getUserInfo(String username) throws SQLException {
+        String sql = "SELECT * FROM users WHERE username = ?";
+        try (Connection conn = getConnection();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setString(1, username);
+            ResultSet rs = stmt.executeQuery();
+            if (rs.next()) {
+                return new UserInfo(
+                        rs.getString("username"),
+                        rs.getString("introduction"),
+                        rs.getString("interests"),
+                        rs.getString("experiences"),
+                        rs.getString("skills"),
+                        rs.getString("careerGoals"));
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
     public void saveProjects(String username, List<Project> projects) throws SQLException {
         try (Connection conn = getConnection()) {
             for (Project project : projects) {
@@ -189,6 +236,16 @@ public class DatabaseService {
     public void loadFakeUsers() throws SQLException {
         registerUser("admin", "admin");
         registerUser("user", "user");
+        UserInfo userInfo = new UserInfo(
+                "Ryan Goodwill",
+                "Hello! I'm Ryan Goodwill, a passionate programmer. I'm interested in various AI models and their applications, Raspberry Pi projects, playing the piano, playing tennis, and cycling.",
+                "Pascal, C++, Python, Java, Django, Raspberry Pi projects, AI model experimentation, sensor integration, control systems, web development, remote hardware control, video streaming, communication protocols.",
+                "Elementary school programming with Pascal -> Learned C++ and Python -> University projects in Java (Cloud Factory Management System, Android Weather Forecast App) -> Raspberry Pi projects (infrared communication protocol, plant care box with sensors, control webpage) -> Deployed and tested Large Language Models and AI voice synthesis -> Ongoing project: video downloading, OCR, ASR, SVG conversion, LLM querying.",
+                "Python, C++, Java, Pascal, Django, Raspberry Pi, AI models, Sensors, Control Systems, Web Development, Remote Hardware Control, Video Streaming, Communication Protocol Development.",
+                "To work in an internet company for a few years before starting my own business."
+        );
+        updateUserInfo("admin", userInfo);
+        updateUserInfo("user", userInfo);
     }
 
     public void loadAndSaveFakeProjects() throws SQLException {