task-42(账号/权限页面): 实现用户列表查询适配

新增 users-model.ts 纯解析(Java AdminUserItemVo snake_case→camelCase、
缺 id 行过滤、分页字段归一、success=false 抛后端 message)与 users.ts
adapter(fetchUserList：normalize+GET /api/admin/users+parse)；UsersPage
改用 adapter，去掉模板内联 http.get+unwrap。task-41 依赖断言改指数据层。
8 用例全过，299 单测 + build 绿。

admin-frontend-vue/src/api/users-model.ts

@@ -0,0 +1,54 @@
+/** 用户列表查询适配（任务 42）：纯解析模块，无 axios 依赖，与 Java AdminUserListVo 对齐。 */
+import { unwrap } from './envelope.ts'
+import { emptyUserPageResult, type UserPageResult } from './users-dto.ts'
+import type { AdminUser } from '../types/admin'
+
+function text(value: unknown): string {
+  return typeof value === 'string' ? value : ''
+}
+
+function numberOrNull(value: unknown): number | null {
+  return typeof value === 'number' && Number.isFinite(value) ? value : null
+}
+
+/** 把 Java AdminUserItemVo(snake_case) 映射为前端 AdminUser(camelCase)；缺 id 视为无效。 */
+export function toAdminUserItem(raw: unknown): AdminUser | null {
+  if (!raw || typeof raw !== 'object') return null
+  const r = raw as Record<string, unknown>
+  const id = numberOrNull(r.id)
+  if (id === null) return null
+  const item: AdminUser = { id, username: text(r.username), role: text(r.role) }
+  if (typeof r.is_admin === 'boolean') item.isAdmin = r.is_admin
+  const createdById = numberOrNull(r.created_by_id)
+  if (createdById !== null) item.createdById = createdById
+  const createdAt = text(r.created_at)
+  if (createdAt) item.createdAt = createdAt
+  const creator = text(r.creator_username)
+  if (creator) item.creatorUsername = creator
+  const abbr = text(r.pinyin_abbr)
+  if (abbr) item.pinyinAbbr = abbr
+  return item
+}
+
+/**
+ * 归一化 Java 用户列表负载（data:{items,total,page,page_size} 或已解包 VO）为前端
+ * UserPageResult；空/缺省字段回默认，success=false 抛后端 message。
+ */
+export function parseUserPage(payload: unknown): UserPageResult {
+  const out = emptyUserPageResult()
+  const core = unwrap<unknown>(payload)
+  if (!core || typeof core !== 'object') return out
+  const record = core as Record<string, unknown>
+  if (Array.isArray(record.items)) {
+    out.items = record.items
+      .map((raw) => toAdminUserItem(raw))
+      .filter((item): item is AdminUser => item !== null)
+  }
+  if (typeof record.total === 'number') out.total = record.total
+  if (typeof record.page === 'number' && record.page >= 1) out.page = Math.floor(record.page)
+  const rawSize = record.page_size ?? record.pageSize
+  if (typeof rawSize === 'number' && rawSize >= 1) out.pageSize = Math.floor(rawSize)
+  if (typeof record.current_user_id === 'number') out.currentUserId = record.current_user_id
+  if (typeof record.current_user_username === 'string') out.currentUserUsername = record.current_user_username
+  return out
+}

admin-frontend-vue/src/api/users.ts

@@ -0,0 +1,15 @@
+import { http } from './http'
+import { parseUserPage } from './users-model'
+import {
+  normalizeUserPageParams,
+  toUserListQuery,
+  type UserListParams,
+  type UserPageResult,
+} from './users-dto'
+
+/** 分页查询用户列表：归一化参数 → GET /api/admin/users → 解析 Java 分页负载。 */
+export async function fetchUserList(params: Partial<UserListParams> = {}): Promise<UserPageResult> {
+  const normalized = normalizeUserPageParams(params)
+  const { data } = await http.get('/api/admin/users', { params: toUserListQuery(normalized) })
+  return parseUserPage(data)
+}

admin-frontend-vue/src/pages/account/UsersPage.vue

@@ -1,9 +1,9 @@
 <script setup lang="ts">
 import { onMounted, reactive, ref } from 'vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
-import { http, unwrap } from '@/api/http'
+import { http } from '@/api/http'
 import type { AdminUser } from '@/types/admin'
-import type { UserPageResult } from '@/api/users-dto'
+import { fetchUserList } from '@/api/users'
 
 const loading = ref(false)
 const rows = ref<AdminUser[]>([])
@@ -13,11 +13,9 @@ const form = reactive({ username: '', page: 1, pageSize: 15 })
 async function loadUsers() {
   loading.value = true
   try {
-    const { data } = await http.get('/api/admin/users', { params: { username: form.username || undefined, page: form.page, page_size: form.pageSize } })
+    const page = await fetchUserList({ page: form.page, pageSize: form.pageSize, keyword: form.username || undefined })
-    const result = unwrap<UserPageResult | { data?: UserPageResult }>(data)
+    rows.value = page.items
-    const value: UserPageResult = 'data' in result && result.data ? result.data : result as UserPageResult
+    total.value = page.total
-    rows.value = value.items || []
-    total.value = Number(value.total || 0)
   } catch (error) {
     ElMessage.error(error instanceof Error ? error.message : '用户列表加载失败')
   } finally {

admin-frontend-vue/tests/task-41.test.ts

@@ -63,10 +63,12 @@ test('test_task_041_users_dto_invalid_input_rejected', () => {
 })
 
 test('test_task_041_users_dto_dependency_failure_returns_actionable_message', () => {
-  // 依赖失败：DTO 纯模块不依赖 axios/http，供页面与后续 adapter 引用。
+  // 依赖失败：DTO 纯模块不依赖 axios/http，由查询适配层引用。
   const dto = readSource('src/api/users-dto.ts')
   assert.equal(/axios|from '\.\/http'/.test(dto), false, 'DTO 模块保持纯逻辑')
   assert.match(dto, /export interface UserPageResult/)
-  const page = readSource('src/pages/account/UsersPage.vue')
+  const adapter = readSource('src/api/users.ts')
-  assert.match(page, /users-dto|UserListParams|UserPageResult/)
+  assert.match(adapter, /users-dto/, '查询适配复用 DTO/参数归一')
+  const model = readSource('src/api/users-model.ts')
+  assert.match(model, /users-dto/, '解析模型复用 DTO 默认值')
 })

admin-frontend-vue/tests/task-42.test.ts

@@ -0,0 +1,91 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readSource } from './helpers.ts'
+import { parseUserPage, toAdminUserItem } from '../src/api/users-model.ts'
+import { USER_PAGE_DEFAULT_SIZE } from '../src/api/users-dto.ts'
+
+test('test_task_042_user_list_adapter_normal_primary_path', () => {
+  // 正常主路径：Java snake_case data.items 信封解出 camelCase 分页结果。
+  const page = parseUserPage({
+    success: true,
+    data: {
+      items: [{ id: 1, username: 'admin', role: 'super_admin', is_admin: true, created_by_id: 3, creator_username: 'root', created_at: '2026-01-01T00:00:00', pinyin_abbr: 'adm' }],
+      total: 1,
+      page: 1,
+      page_size: 15,
+    },
+  })
+  assert.equal(page.items.length, 1)
+  assert.equal(page.items[0].username, 'admin')
+  assert.equal(page.items[0].isAdmin, true)
+  assert.equal(page.items[0].createdById, 3)
+  assert.equal(page.items[0].creatorUsername, 'root')
+  assert.equal(page.items[0].pinyinAbbr, 'adm')
+  assert.equal(page.total, 1)
+  assert.equal(page.pageSize, 15)
+})
+
+test('test_task_042_user_list_adapter_normal_variant_input', () => {
+  // 正常变体：已解包的 AdminUserListVo 直传同样可归一。
+  const page = parseUserPage({
+    items: [{ id: 2, username: '张伟恒', role: 'admin', is_admin: true, created_by_id: null }],
+    total: 5,
+    page: 2,
+    page_size: 20,
+  })
+  assert.equal(page.items[0].username, '张伟恒')
+  assert.equal(page.items[0].createdById, undefined)
+  assert.equal(page.page, 2)
+  assert.equal(page.pageSize, 20)
+})
+
+test('test_task_042_user_list_adapter_normal_repeated_operation_is_idempotent', () => {
+  // 正常重复：解析不修改输入、结果稳定。
+  const payload = { data: { items: [{ id: 3, username: 'u', role: 'normal' }], total: 1, page: 1, page_size: 15 } }
+  assert.deepEqual(parseUserPage(payload), parseUserPage(payload))
+})
+
+test('test_task_042_user_list_adapter_boundary_empty_input', () => {
+  // 边界空值：无 items/空负载回默认空结果，不崩溃。
+  const page = parseUserPage({})
+  assert.deepEqual(page.items, [])
+  assert.equal(page.total, 0)
+  assert.equal(page.pageSize, USER_PAGE_DEFAULT_SIZE)
+})
+
+test('test_task_042_user_list_adapter_boundary_single_item', () => {
+  // 边界单元素：单条最小字段(缺 id 的行被过滤)。
+  const page = parseUserPage({ data: { items: [{ id: 7, username: 'root', role: 'super_admin' }, { username: 'no-id' }], total: 2, page: 1, page_size: 15 } })
+  assert.equal(page.items.length, 1)
+  assert.equal(page.items[0].id, 7)
+})
+
+test('test_task_042_user_list_adapter_boundary_limit_or_missing_field', () => {
+  // 边界上限/缺字段：缺 page_size 用默认；缺省字段为空串而非 undefined。
+  const single = toAdminUserItem({ id: 9, username: '', role: '', is_admin: false })
+  assert.equal(single?.username, '')
+  assert.equal(single?.role, '')
+  assert.equal(single?.isAdmin, false)
+  const page = parseUserPage({ items: [], total: 0, page: 1 })
+  assert.equal(page.pageSize, USER_PAGE_DEFAULT_SIZE)
+})
+
+test('test_task_042_user_list_adapter_invalid_input_rejected', () => {
+  // 异常输入：success=false 被拒绝并带后端 message；缺 id 的行不入列表。
+  assert.throws(() => parseUserPage({ success: false, message: '无权限查看用户' }), /无权限查看用户/)
+  assert.equal(toAdminUserItem({ username: 'x' }), null)
+  assert.equal(toAdminUserItem('garbage'), null)
+})
+
+test('test_task_042_user_list_adapter_dependency_failure_returns_actionable_message', () => {
+  // 依赖失败：页面查询走 adapter(fetchUserList→parseUserPage)，不在模板内联解包。
+  const page = readSource('src/pages/account/UsersPage.vue')
+  assert.match(page, /fetchUserList/)
+  assert.equal(/unwrap<|\/api\/admin\/users/.test(page), false, '页面不再内联 http.get + unwrap')
+  const adapter = readSource('src/api/users.ts')
+  assert.match(adapter, /\/api\/admin\/users/)
+  assert.match(adapter, /parseUserPage/)
+  assert.match(adapter, /normalizeUserPageParams/)
+  const model = readSource('src/api/users-model.ts')
+  assert.match(model, /export function parseUserPage/)
+})