First commit

frontend/src/views/UserView.vue

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+<template>
+  <el-card>
+    <div class="toolbar">
+      <div class="spacer" />
+      <el-button type="success" @click="openDialog()">
+        <el-icon><Plus /></el-icon>&nbsp;新增用户
+      </el-button>
+    </div>
+
+    <el-table :data="rows" v-loading="loading">
+      <el-table-column prop="id" label="ID" width="70" />
+      <el-table-column prop="username" label="用户名" width="140" />
+      <el-table-column prop="realName" label="姓名" width="120" />
+      <el-table-column prop="roleLabel" label="角色" width="100">
+        <template #default="{ row }">
+          <el-tag :type="row.role === 'ADMIN' ? 'danger' : row.role === 'TEACHER' ? 'warning' : 'info'">
+            {{ row.roleLabel }}
+          </el-tag>
+        </template>
+      </el-table-column>
+      <el-table-column prop="email" label="邮箱" min-width="180" />
+      <el-table-column prop="phone" label="电话" width="140" />
+      <el-table-column label="状态" width="90" align="center">
+        <template #default="{ row }">
+          <el-tag :type="row.enabled ? 'success' : 'info'">{{ row.enabled ? '启用' : '禁用' }}</el-tag>
+        </template>
+      </el-table-column>
+      <el-table-column label="操作" width="170" fixed="right">
+        <template #default="{ row }">
+          <el-button size="small" @click="openDialog(row)">编辑</el-button>
+          <el-button size="small" type="danger" @click="remove(row)">删除</el-button>
+        </template>
+      </el-table-column>
+    </el-table>
+
+    <el-dialog v-model="dialogVisible" :title="form.id ? '编辑用户' : '新增用户'" width="480px">
+      <el-form ref="formRef" :model="form" :rules="rules" label-width="90px">
+        <el-form-item label="用户名" prop="username">
+          <el-input v-model="form.username" :disabled="Boolean(form.id)" />
+        </el-form-item>
+        <el-form-item v-if="!form.id" label="初始密码" prop="password">
+          <el-input v-model="form.password" type="password" show-password />
+        </el-form-item>
+        <el-form-item v-else label="重置密码">
+          <el-input v-model="form.password" type="password" show-password placeholder="留空则不修改" />
+        </el-form-item>
+        <el-form-item label="姓名" prop="realName">
+          <el-input v-model="form.realName" />
+        </el-form-item>
+        <el-form-item label="角色" prop="role">
+          <el-select v-model="form.role">
+            <el-option label="管理员" value="ADMIN" />
+            <el-option label="教师" value="TEACHER" />
+            <el-option label="学生" value="STUDENT" />
+          </el-select>
+        </el-form-item>
+        <el-form-item label="邮箱">
+          <el-input v-model="form.email" />
+        </el-form-item>
+        <el-form-item label="电话">
+          <el-input v-model="form.phone" />
+        </el-form-item>
+        <el-form-item v-if="form.id" label="启用">
+          <el-switch v-model="form.enabled" />
+        </el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="dialogVisible = false">取消</el-button>
+        <el-button type="primary" @click="submit">保存</el-button>
+      </template>
+    </el-dialog>
+  </el-card>
+</template>
+
+<script setup lang="ts">
+import { onMounted, reactive, ref } from 'vue'
+import { ElMessage, ElMessageBox, type FormInstance, type FormRules } from 'element-plus'
+import { userApi } from '@/api'
+import type { Role, UserVO } from '@/types'
+
+interface UserForm {
+  id?: number
+  username?: string
+  password?: string
+  realName?: string
+  role?: Role
+  email?: string
+  phone?: string
+  enabled?: boolean
+}
+
+const loading = ref(false)
+const rows = ref<UserVO[]>([])
+const dialogVisible = ref(false)
+const formRef = ref<FormInstance>()
+const form = reactive<UserForm>({ role: 'STUDENT', enabled: true })
+
+/** 表单校验规则 */
+const rules: FormRules = {
+  username: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
+  password: [{ required: true, message: '请输入密码', trigger: 'blur' }],
+  realName: [{ required: true, message: '请输入姓名', trigger: 'blur' }],
+  role: [{ required: true, message: '请选择角色', trigger: 'change' }]
+}
+
+/**
+ * 加载用户列表。
+ */
+async function load(): Promise<void> {
+  loading.value = true
+  try {
+    rows.value = await userApi.list()
+  } finally {
+    loading.value = false
+  }
+}
+
+/**
+ * 打开新增/编辑对话框。
+ *
+ * @param row 行数据
+ */
+function openDialog(row?: UserVO): void {
+  Object.keys(form).forEach((key) => delete (form as Record<string, unknown>)[key])
+  if (row) {
+    Object.assign(form, row, { password: '' })
+  } else {
+    Object.assign(form, { role: 'STUDENT', enabled: true })
+  }
+  dialogVisible.value = true
+}
+
+/**
+ * 保存用户。
+ */
+async function submit(): Promise<void> {
+  const valid = await formRef.value?.validate().catch(() => false)
+  if (!valid) {
+    return
+  }
+  if (form.id) {
+    const payload: Record<string, unknown> = { ...form }
+    delete payload.username
+    if (!payload.password) {
+      delete payload.password
+    }
+    await userApi.update(form.id, payload)
+    ElMessage.success('修改成功')
+  } else {
+    await userApi.create(form as Record<string, unknown>)
+    ElMessage.success('新增成功')
+  }
+  dialogVisible.value = false
+  await load()
+}
+
+/**
+ * 删除用户。
+ *
+ * @param row 行数据
+ */
+async function remove(row: UserVO): Promise<void> {
+  await ElMessageBox.confirm(`确认删除用户「${row.realName}」吗？`, '提示', { type: 'warning' })
+  await userApi.remove(row.id)
+  ElMessage.success('删除成功')
+  await load()
+}
+
+onMounted(load)
+</script>