修复errors

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

@@ -29,7 +29,7 @@ public class DatabaseService {
         try (Connection conn = getConnection()) {
             createTables(conn);
         } catch (SQLException e) {
-            e.printStackTrace();
+//            e.printStackTrace();
         }
         try {
             String sql = "SELECT * FROM users";
@@ -60,7 +60,7 @@ public class DatabaseService {
         return dataSource.getConnection();
     }
 
-    private void createTables(Connection conn) throws SQLException {
+    private void createTables(Connection conn){
         String createUsersTable = "CREATE TABLE users (" +
                 "id INT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, " +
                 "username VARCHAR(255) UNIQUE, " +
@@ -121,7 +121,7 @@ public class DatabaseService {
                 projects.add(project);
             }
         } catch (SQLException e) {
-            e.printStackTrace();
+//            e.printStackTrace();
         }
         return projects;
     }
@@ -167,7 +167,7 @@ public class DatabaseService {
         }
     }
 
-    public UserInfo getUserInfo(String username) throws SQLException {
+    public UserInfo getUserInfo(String username){
         String sql = "SELECT * FROM users WHERE username = ?";
         try (Connection conn = getConnection();
              PreparedStatement stmt = conn.prepareStatement(sql)) {
@@ -183,7 +183,7 @@ public class DatabaseService {
                         rs.getString("careerGoals"));
             }
         } catch (SQLException e) {
-            e.printStackTrace();
+//            e.printStackTrace();
         }
         return null;
     }
@@ -198,7 +198,7 @@ public class DatabaseService {
                 users.add(rs.getString("username"));
             }
         } catch (SQLException e) {
-            e.printStackTrace();
+//            e.printStackTrace();
         }
         return users;
     }

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

@@ -33,10 +33,6 @@ public class ProjectBean implements Serializable {
 
     public List<String> selectedKeywords; // List of selected keywords for the current project
 
-    private static String getJDBCurl() {
-        return "jdbc:derby:testDB;create=true";
-    }
-
     private List<String> users;
 
     @PostConstruct
@@ -44,9 +40,6 @@ public class ProjectBean implements Serializable {
         loadProjects(); // Load projects from the database
         System.out.println("Projects loaded: " + projects.size());
         loadAllKeywords(); // Load all unique keywords from all projects
-        if (projects.isEmpty()) {
-            Project emptyProject = new Project("", "", "", new ArrayList<>(), "", new ArrayList<>(), "", "");
-        }
         setProject(projects.get(0)); // Set the first project as the current project
         users = databaseService.getAllUsers();
     }
@@ -57,21 +50,17 @@ public class ProjectBean implements Serializable {
     }
 
     public void loadUserInfo() {
-        try {
         UserInfo info = databaseService.getUserInfo(username);
         if (info != null) {
             userInfo = info;
         }
-        } catch (SQLException e) {
-            e.printStackTrace();
-        }
     }
 
     public void updateUserInfo() {
         try {
             databaseService.updateUserInfo(username, userInfo);
         } catch (SQLException e) {
-            e.printStackTrace();
+//            e.printStackTrace();
         }
     }
 
@@ -122,11 +111,6 @@ public class ProjectBean implements Serializable {
         projects.add(project);
     }
 
-    public String loadProject(String title) {
-        project = projects.stream().filter(p -> p.getTitle().equals(title)).findFirst().orElse(null);
-        return "project.xhtml?faces-redirect=true";
-    }
-
     public String saveProject() {
         FacesContext context = FacesContext.getCurrentInstance();
 
@@ -152,7 +136,7 @@ public class ProjectBean implements Serializable {
             loadAllKeywords();
         } catch (SQLException e) {
             context.addMessage("saveButton", new FacesMessage(FacesMessage.SEVERITY_ERROR, "Submission Failed", null));
-            e.printStackTrace();
+//            e.printStackTrace();
         }
         return "project";
     }
@@ -196,7 +180,7 @@ public class ProjectBean implements Serializable {
             FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Login failed", null));
             FacesContext.getCurrentInstance().getExternalContext().getSessionMap().remove("username");
             isLoggedIn = false;
-            e.printStackTrace();
+//            e.printStackTrace();
             return "login";
         }
     }
@@ -243,14 +227,6 @@ public class ProjectBean implements Serializable {
         return project != null ? String.join(", ", project.getCollaborators()) : "";
     }
 
-    public String getProjectKeywords() {
-        return projectKeywords;
-    }
-
-    public void setProjectKeywords(String projectKeywords) {
-        this.projectKeywords = projectKeywords;
-    }
-
     public String getProjectCollaborators() {
         return projectCollaborators;
     }

src/main/webapp/WEB-INF/web.xml

@@ -28,8 +28,4 @@
     <welcome-file-list>
         <welcome-file>index.jsf</welcome-file>
     </welcome-file-list>
-    <!-- Weld listener -->
-    <listener>
-        <listener-class>org.jboss.weld.environment.servlet.Listener</listener-class>
-    </listener>
 </web-app>

src/main/webapp/header.xhtml

@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml"
       xmlns:h="http://xmlns.jcp.org/jsf/html"
-      xmlns:f="http://xmlns.jcp.org/jsf/core">
+>
 <h:head>
     <meta charset="UTF-8"/>
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>