超长分段处理

frontend/src/App.jsx

@@ -16,6 +16,7 @@ import QuizPlayer from './pages/QuizPlayer'
 import MistakeList from './pages/MistakeList'
 
 // Admin Pages
+import AdminPanel from './pages/AdminPanel'
 import AdminSettings from './pages/AdminSettings'
 
 function App() {
@@ -100,6 +101,15 @@ function App() {
             />
 
             {/* Admin Only Routes */}
+            <Route
+              path="/admin"
+              element={
+                <ProtectedRoute adminOnly>
+                  <AdminPanel />
+                </ProtectedRoute>
+              }
+            />
+
             <Route
               path="/admin/settings"
               element={

frontend/src/api/client.js

@@ -154,13 +154,27 @@ export const mistakeAPI = {
 
 // ============ Admin APIs ============
 export const adminAPI = {
-  // Get system config
-  getConfig: () =>
-    api.get('/admin/config'),
+  // Config
+  getConfig: () => api.get('/admin/config'),
+  updateConfig: (config) => api.put('/admin/config', config),
 
-  // Update system config
-  updateConfig: (config) =>
-    api.put('/admin/config', config)
+  // Users
+  getUsers: (skip = 0, limit = 50, search = null) =>
+    api.get('/admin/users', { params: { skip, limit, search } }),
+  createUser: (username, password, is_admin = false) =>
+    api.post('/admin/users', { username, password, is_admin }),
+  updateUser: (userId, data) =>
+    api.put(`/admin/users/${userId}`, data),
+  deleteUser: (userId) =>
+    api.delete(`/admin/users/${userId}`),
+
+  // Statistics
+  getStatistics: () => api.get('/admin/statistics'),
+  getHealth: () => api.get('/admin/health'),
+
+  // Export
+  exportUsers: () => api.get('/admin/export/users', { responseType: 'blob' }),
+  exportStatistics: () => api.get('/admin/export/statistics', { responseType: 'blob' })
 }
 
 export default api

frontend/src/pages/AdminPanel.jsx

@@ -0,0 +1,377 @@
+/**
+ * Admin Panel - 完整的管理员面板
+ */
+import React, { useState, useEffect } from 'react'
+import { useNavigate } from 'react-router-dom'
+import { adminAPI } from '../api/client'
+import { useAuth } from '../context/AuthContext'
+import {
+  Users, BarChart3, Settings, Trash2, Plus, Search,
+  ArrowLeft, Shield, Activity, Database, Download
+} from 'lucide-react'
+import toast from 'react-hot-toast'
+
+export const AdminPanel = () => {
+  const { user } = useAuth()
+  const navigate = useNavigate()
+  const [activeTab, setActiveTab] = useState('stats')
+
+  // 统计数据
+  const [stats, setStats] = useState(null)
+  const [health, setHealth] = useState(null)
+
+  // 用户数据
+  const [users, setUsers] = useState([])
+  const [usersTotal, setUsersTotal] = useState(0)
+  const [searchQuery, setSearchQuery] = useState('')
+  const [showCreateModal, setShowCreateModal] = useState(false)
+  const [newUser, setNewUser] = useState({ username: '', password: '', is_admin: false })
+
+  useEffect(() => {
+    loadStats()
+    loadHealth()
+    loadUsers()
+  }, [])
+
+  const loadStats = async () => {
+    try {
+      const res = await adminAPI.getStatistics()
+      setStats(res.data)
+    } catch (error) {
+      console.error('Failed to load statistics:', error)
+    }
+  }
+
+  const loadHealth = async () => {
+    try {
+      const res = await adminAPI.getHealth()
+      setHealth(res.data)
+    } catch (error) {
+      console.error('Failed to load health:', error)
+    }
+  }
+
+  const loadUsers = async () => {
+    try {
+      const res = await adminAPI.getUsers(0, 100, searchQuery || null)
+      setUsers(res.data.users)
+      setUsersTotal(res.data.total)
+    } catch (error) {
+      console.error('Failed to load users:', error)
+      toast.error('加载用户列表失败')
+    }
+  }
+
+  const handleCreateUser = async () => {
+    if (!newUser.username || !newUser.password) {
+      toast.error('请填写用户名和密码')
+      return
+    }
+    try {
+      await adminAPI.createUser(newUser.username, newUser.password, newUser.is_admin)
+      toast.success('用户创建成功')
+      setShowCreateModal(false)
+      setNewUser({ username: '', password: '', is_admin: false })
+      loadUsers()
+    } catch (error) {
+      toast.error(error.response?.data?.detail || '创建用户失败')
+    }
+  }
+
+  const handleDeleteUser = async (userId, username) => {
+    if (!confirm(`确定删除用户 ${username}？`)) return
+    try {
+      await adminAPI.deleteUser(userId)
+      toast.success('用户已删除')
+      loadUsers()
+    } catch (error) {
+      toast.error(error.response?.data?.detail || '删除失败')
+    }
+  }
+
+  const handleExportUsers = async () => {
+    try {
+      const response = await adminAPI.exportUsers()
+      const url = window.URL.createObjectURL(new Blob([response.data]))
+      const link = document.createElement('a')
+      link.href = url
+      link.setAttribute('download', 'users.csv')
+      document.body.appendChild(link)
+      link.click()
+      link.remove()
+      toast.success('导出成功')
+    } catch (error) {
+      toast.error('导出失败')
+    }
+  }
+
+  return (
+    <div className="min-h-screen bg-gray-100">
+      {/* Header */}
+      <div className="bg-white shadow">
+        <div className="max-w-7xl mx-auto px-4 py-6">
+          <div className="flex items-center justify-between">
+            <div className="flex items-center gap-3">
+              <button onClick={() => navigate(-1)} className="p-2 hover:bg-gray-100 rounded-lg">
+                <ArrowLeft className="h-6 w-6 text-gray-600" />
+              </button>
+              <Shield className="h-8 w-8 text-primary-600" />
+              <div>
+                <h1 className="text-2xl font-bold text-gray-900">管理员面板</h1>
+                <p className="text-gray-600">{user?.username}</p>
+              </div>
+            </div>
+            <button
+              onClick={() => navigate('/admin/settings')}
+              className="px-4 py-2 bg-primary-600 text-white rounded-lg hover:bg-primary-700 flex items-center gap-2"
+            >
+              <Settings className="h-5 w-5" />
+              系统设置
+            </button>
+          </div>
+        </div>
+      </div>
+
+      {/* Tabs */}
+      <div className="max-w-7xl mx-auto px-4 py-6">
+        <div className="flex gap-4 border-b border-gray-200 mb-6">
+          <button
+            onClick={() => setActiveTab('stats')}
+            className={`pb-3 px-4 font-medium border-b-2 transition-colors ${
+              activeTab === 'stats'
+                ? 'border-primary-600 text-primary-600'
+                : 'border-transparent text-gray-600 hover:text-gray-900'
+            }`}
+          >
+            <div className="flex items-center gap-2">
+              <BarChart3 className="h-5 w-5" />
+              系统统计
+            </div>
+          </button>
+          <button
+            onClick={() => setActiveTab('users')}
+            className={`pb-3 px-4 font-medium border-b-2 transition-colors ${
+              activeTab === 'users'
+                ? 'border-primary-600 text-primary-600'
+                : 'border-transparent text-gray-600 hover:text-gray-900'
+            }`}
+          >
+            <div className="flex items-center gap-2">
+              <Users className="h-5 w-5" />
+              用户管理
+            </div>
+          </button>
+        </div>
+
+        {/* Stats Tab */}
+        {activeTab === 'stats' && stats && (
+          <div className="space-y-6">
+            {/* Overview Cards */}
+            <div className="grid grid-cols-1 md:grid-cols-4 gap-6">
+              <div className="bg-white rounded-xl shadow p-6">
+                <div className="flex items-center justify-between">
+                  <div>
+                    <p className="text-gray-600 text-sm">用户总数</p>
+                    <p className="text-3xl font-bold text-gray-900 mt-1">{stats.users?.total || 0}</p>
+                  </div>
+                  <Users className="h-12 w-12 text-blue-500 opacity-20" />
+                </div>
+              </div>
+
+              <div className="bg-white rounded-xl shadow p-6">
+                <div className="flex items-center justify-between">
+                  <div>
+                    <p className="text-gray-600 text-sm">题库总数</p>
+                    <p className="text-3xl font-bold text-gray-900 mt-1">{stats.exams?.total || 0}</p>
+                  </div>
+                  <Database className="h-12 w-12 text-green-500 opacity-20" />
+                </div>
+              </div>
+
+              <div className="bg-white rounded-xl shadow p-6">
+                <div className="flex items-center justify-between">
+                  <div>
+                    <p className="text-gray-600 text-sm">题目总数</p>
+                    <p className="text-3xl font-bold text-gray-900 mt-1">{stats.questions?.total || 0}</p>
+                  </div>
+                  <Activity className="h-12 w-12 text-purple-500 opacity-20" />
+                </div>
+              </div>
+
+              <div className="bg-white rounded-xl shadow p-6">
+                <div className="flex items-center justify-between">
+                  <div>
+                    <p className="text-gray-600 text-sm">今日活跃</p>
+                    <p className="text-3xl font-bold text-gray-900 mt-1">{stats.activity?.today_active_users || 0}</p>
+                  </div>
+                  <Shield className="h-12 w-12 text-orange-500 opacity-20" />
+                </div>
+              </div>
+            </div>
+
+            {/* System Health */}
+            {health && (
+              <div className="bg-white rounded-xl shadow p-6">
+                <h3 className="text-lg font-bold text-gray-900 mb-4">系统状态</h3>
+                <div className="space-y-3">
+                  <div className="flex justify-between items-center">
+                    <span className="text-gray-600">状态</span>
+                    <span className="px-3 py-1 bg-green-100 text-green-700 rounded-full text-sm font-medium">
+                      {health.status}
+                    </span>
+                  </div>
+                  <div className="flex justify-between items-center">
+                    <span className="text-gray-600">数据库</span>
+                    <span className="text-gray-900">{health.system?.database_url || 'SQLite'}</span>
+                  </div>
+                  {health.database?.size_mb && (
+                    <div className="flex justify-between items-center">
+                      <span className="text-gray-600">数据库大小</span>
+                      <span className="text-gray-900">{health.database.size_mb} MB</span>
+                    </div>
+                  )}
+                </div>
+              </div>
+            )}
+          </div>
+        )}
+
+        {/* Users Tab */}
+        {activeTab === 'users' && (
+          <div className="space-y-6">
+            {/* Actions */}
+            <div className="flex justify-between items-center">
+              <div className="relative flex-1 max-w-md">
+                <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-5 w-5 text-gray-400" />
+                <input
+                  type="text"
+                  placeholder="搜索用户..."
+                  value={searchQuery}
+                  onChange={(e) => setSearchQuery(e.target.value)}
+                  onKeyDown={(e) => e.key === 'Enter' && loadUsers()}
+                  className="w-full pl-10 pr-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-primary-500"
+                />
+              </div>
+              <div className="flex gap-2">
+                <button
+                  onClick={handleExportUsers}
+                  className="px-4 py-2 border border-gray-300 rounded-lg hover:bg-gray-50 flex items-center gap-2"
+                >
+                  <Download className="h-5 w-5" />
+                  导出
+                </button>
+                <button
+                  onClick={() => setShowCreateModal(true)}
+                  className="px-4 py-2 bg-primary-600 text-white rounded-lg hover:bg-primary-700 flex items-center gap-2"
+                >
+                  <Plus className="h-5 w-5" />
+                  创建用户
+                </button>
+              </div>
+            </div>
+
+            {/* Users Table */}
+            <div className="bg-white rounded-xl shadow overflow-hidden">
+              <table className="w-full">
+                <thead className="bg-gray-50">
+                  <tr>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">ID</th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">用户名</th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">角色</th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">题库数</th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">错题数</th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">注册时间</th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">操作</th>
+                  </tr>
+                </thead>
+                <tbody className="divide-y divide-gray-200">
+                  {users.map((u) => (
+                    <tr key={u.id} className="hover:bg-gray-50">
+                      <td className="px-6 py-4 text-sm text-gray-900">{u.id}</td>
+                      <td className="px-6 py-4 text-sm font-medium text-gray-900">{u.username}</td>
+                      <td className="px-6 py-4">
+                        {u.is_admin ? (
+                          <span className="px-2 py-1 bg-red-100 text-red-700 text-xs font-medium rounded">管理员</span>
+                        ) : (
+                          <span className="px-2 py-1 bg-gray-100 text-gray-700 text-xs font-medium rounded">普通用户</span>
+                        )}
+                      </td>
+                      <td className="px-6 py-4 text-sm text-gray-600">{u.exam_count || 0}</td>
+                      <td className="px-6 py-4 text-sm text-gray-600">{u.mistake_count || 0}</td>
+                      <td className="px-6 py-4 text-sm text-gray-600">
+                        {new Date(u.created_at).toLocaleDateString()}
+                      </td>
+                      <td className="px-6 py-4">
+                        <button
+                          onClick={() => handleDeleteUser(u.id, u.username)}
+                          disabled={u.username === 'admin'}
+                          className="text-red-600 hover:text-red-800 disabled:opacity-50 disabled:cursor-not-allowed"
+                        >
+                          <Trash2 className="h-5 w-5" />
+                        </button>
+                      </td>
+                    </tr>
+                  ))}
+                </tbody>
+              </table>
+            </div>
+          </div>
+        )}
+      </div>
+
+      {/* Create User Modal */}
+      {showCreateModal && (
+        <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
+          <div className="bg-white rounded-xl p-6 w-full max-w-md">
+            <h2 className="text-xl font-bold text-gray-900 mb-4">创建新用户</h2>
+            <div className="space-y-4">
+              <div>
+                <label className="block text-sm font-medium text-gray-700 mb-2">用户名</label>
+                <input
+                  type="text"
+                  value={newUser.username}
+                  onChange={(e) => setNewUser({ ...newUser, username: e.target.value })}
+                  className="w-full px-4 py-2 border border-gray-300 rounded-lg"
+                />
+              </div>
+              <div>
+                <label className="block text-sm font-medium text-gray-700 mb-2">密码</label>
+                <input
+                  type="password"
+                  value={newUser.password}
+                  onChange={(e) => setNewUser({ ...newUser, password: e.target.value })}
+                  className="w-full px-4 py-2 border border-gray-300 rounded-lg"
+                />
+              </div>
+              <div className="flex items-center gap-2">
+                <input
+                  type="checkbox"
+                  checked={newUser.is_admin}
+                  onChange={(e) => setNewUser({ ...newUser, is_admin: e.target.checked })}
+                  className="rounded"
+                />
+                <label className="text-sm text-gray-700">设为管理员</label>
+              </div>
+            </div>
+            <div className="flex gap-2 mt-6">
+              <button
+                onClick={() => setShowCreateModal(false)}
+                className="flex-1 px-4 py-2 border border-gray-300 rounded-lg hover:bg-gray-50"
+              >
+                取消
+              </button>
+              <button
+                onClick={handleCreateUser}
+                className="flex-1 px-4 py-2 bg-primary-600 text-white rounded-lg hover:bg-primary-700"
+              >
+                创建
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
+    </div>
+  )
+}
+
+export default AdminPanel

frontend/src/pages/Dashboard.jsx

@@ -7,7 +7,7 @@ import { examAPI, mistakeAPI } from '../api/client'
 import { useAuth } from '../context/AuthContext'
 import Layout from '../components/Layout'
 import {
-  FolderOpen, XCircle, TrendingUp, BookOpen, ArrowRight, Settings
+  FolderOpen, XCircle, TrendingUp, BookOpen, ArrowRight, Settings, Shield
 } from 'lucide-react'
 import { getStatusColor, getStatusText, formatRelativeTime, calculateProgress } from '../utils/helpers'
 
@@ -177,15 +177,24 @@ export const Dashboard = () => {
             <div className="flex items-center justify-between">
               <div>
                 <h3 className="font-semibold mb-1">管理员功能</h3>
-                <p className="text-sm text-primary-100">配置系统设置</p>
+                <p className="text-sm text-primary-100">用户管理、系统统计、配置设置</p>
+              </div>
+              <div className="flex gap-2">
+                <button
+                  onClick={() => navigate('/admin')}
+                  className="bg-white text-primary-600 px-4 py-2 rounded-lg font-medium hover:bg-primary-50 transition-colors flex items-center gap-2"
+                >
+                  <Shield className="h-5 w-5" />
+                  管理面板
+                </button>
+                <button
+                  onClick={() => navigate('/admin/settings')}
+                  className="bg-white/90 text-primary-600 px-4 py-2 rounded-lg font-medium hover:bg-white transition-colors flex items-center gap-2"
+                >
+                  <Settings className="h-5 w-5" />
+                  系统设置
+                </button>
               </div>
-              <button
-                onClick={() => navigate('/admin/settings')}
-                className="bg-white text-primary-600 px-4 py-2 rounded-lg font-medium hover:bg-primary-50 transition-colors flex items-center gap-2"
-              >
-                <Settings className="h-5 w-5" />
-                系统设置
-              </button>
             </div>
           </div>
         )}

frontend/src/pages/Login.jsx

@@ -110,10 +110,6 @@ export const Login = () => {
           </div>
         </div>
 
-        {/* Footer */}
-        <div className="mt-8 text-center text-sm text-gray-500">
-          <p>默认管理员账号：admin / admin123</p>
-        </div>
       </div>
     </div>
   )