vue3项目，表单增删改

效果图

ArticleChannel.vue页面代码

<script setup>
import {artGetChannelsService ,artDelChannelService} from '@/api/article.js'
import { Edit, Delete } from '@element-plus/icons-vue'
//调用open方法，ChannelEdit去修改组件内部类容
import ChannelEdit from '@/views/article/components/ChannelEdit.vue'
import{ref}from 'vue'
const loading=ref(false)
const channelList=ref([])
const getChannelList=async()=>{2
  loading.value=true
  const res=await artGetChannelsService()
  channelList.value=res.data.data
  // channelList.value=""
  console.log();
  loading.value=false
}
//触发dialog
const dialog=ref()
getChannelList()
const onEditChannel=(row)=>{
  dialog.value.open(row)
}
const onDelChannel = async (row) => {
  await ElMessageBox.confirm('你确认要删除该分类么', '温馨提示', {
    type: 'warning',
    confirmButtonText: '确认',
    cancelButtonText: '取消'
  })
  await artDelChannelService(row.id)
  ElMessage.success('删除成功')
  getChannelList()
}
//点击触发对话框
const onAddChannel = () => {
 dialog.value.open({})
}
//
const onSuccess=()=>{
  getChannelList()
}

</script>
<template>
  <page-container title='文章分类'>
      <template #extra>
          <el-button @click="onAddChannel">添加按钮</el-button>
      </template>
<!-- 表格部分  label是最上面名称，prop接收数据并遍历 -->
 <!-- -加载效果 -->
      <el-table :data="channelList" style="width: 100%" v-loading="loading">
        <el-table-column label="序号" type="index" width="90" ></el-table-column>
        <el-table-column label="分类名称" prop="cate_name"></el-table-column>
        <el-table-column label="分类别名" prop="cate_alias" ></el-table-column>
        <el-table-column label="操作"  width="150">
          <!-- 可以在这里添加默认插槽default并且通过这个插槽可以拿到数据
           通过 slot 可以获取到 row, column, $index 和 store（table 内部的状态管理）的数据，用法参考 demo
           默认插槽中可以自定义类容 -->
           <template #default="{row,$index}">
            <!-- 按钮是支持图标的 用icon，圆的加上circle -->
             <!-- 颜色type -->
            <el-button @click="onEditChannel(row, $index)" type="primary" plain :icon="Edit" circle> </el-button>
            <el-button @click="onDelChannel(row, $index)" type="danger" plain :icon="Delete" circle> </el-button>
           </template>
        </el-table-column>
      <!-- table是支持#empty插槽，如果没有数据显示的页面 -->
       <template #empty>
        <el-empty description="没有数据"></el-empty>
       </template>
      </el-table>
      
      <ChannelEdit ref="dialog" @success1="onSuccess"></ChannelEdit>
  </page-container>
 
</template>
<style lang="scss" scoped></style>

ChannelEdit.vue组件代码

<script setup>
import { ref } from 'vue'
import { artEditChannelService, artAddChannelService } from '@/api/article.js'
const dialogVisible = ref(false)
const formRef=ref()
const formModel=ref({
  cate_name:'',
  cate_alias:''
})
//配置校验规则
const rules={
  cate_name:[
    {required:true,message:'请输入分类名称',trigger:'blur'},
    {pattern:/^\S{1,10}$/,message:'分类名称必须是1-10位非空字符',trigger:'blur'}
  ],
  cate_alias:[
  {required:true,  message:'请输入分类别名',  trigger:'blur'},
  {pattern:/^[a-zA-Z0-9]{1,15}$/,  message:'分类别名必须是1-15位字母或数字', trigger:'blur'}
  ]
}
//确认按钮的相关事件
const emit = defineEmits(['success'])//子传父调用
const onSubmit = async () => {
  await formRef.value.validate()
  const isEdit = formModel.value.id
  if (isEdit) {
    await artEditChannelService(formModel.value)
    ElMessage.success('编辑成功')
  } else {
    await artAddChannelService(formModel.value)
    ElMessage.success('添加成功')
  }
  dialogVisible.value = false
 //遇到子传父，通知页面更新
 emit('success1')
}

//要对外暴露，这样其他页面才可以在这里面改类容
// 组件对外暴露一个方法 open，基于open传来的参数，区分添加还是编辑
// open({})  => 表单无需渲染，说明是添加
// open({ id, cate_name, ... })  => 表单需要渲染，说明是编辑
// open调用后，可以打开弹窗
const open=(row)=>{
  
  dialogVisible.value=true;
  //用展开运算符...row
  formModel.value= { ...row}//添加->重置了表单类容，编辑相当于存储了回显的数据
  
  console.log(formModel.value);
}
//向外暴露组件方法
defineExpose({
  open
})

</script>

<template>
  
     <el-dialog
    v-model="dialogVisible"
    :title="formModel.id?'编辑分类':'添加分类'"
    width="30%" 
  >
    <!-- <span>内容部分</span> -->
     <el-form ref="formRef" :model="formModel" :rules="rules" label-width="100px" style="padding-right:30px">
      <el-form-item label="分类名称" prop="cate_name">
        <el-input v-model="formModel.cate_name" placeholder="请输入分类名称"></el-input>
      </el-form-item>
      <el-form-item label="分类别名" prop="cate_alias">
        <el-input v-model="formModel.cate_alias" placeholder="请输入分类别名"></el-input>
      </el-form-item>
     </el-form>
    <template #footer>
      <span class="dialog-footer">
        <el-button @click="dialogVisible = false">取消</el-button>
        <el-button type="primary" @click="onSubmit"
          >确认</el-button
        >
      </span>
    </template>
  </el-dialog>
</template>

API中article.js代码

import request from '@/utils/request.js'
//获取文章分类
export const artGetChannelsService=()=>request.get('/my/cate/list')
//添加文章分类
export const artAddChannelService = (data) => request.post('/my/cate/add', data)
//编辑文章分类
export const artEditChannelService = (data) =>
    request.put('/my/cate/info', data)
//删除文章分类
export const artDelChannelService = (id) =>
    request.delete('/my/cate/del', {
      params: { id }
    })

utils里面request代码

import axios from 'axios'
import { useUserStore } from '@/stores'
import { ElMessage } from 'element-plus'
import router from '@/router'
const baseURL = 'http://big-event-vue-api-t.itheima.net'

const instance = axios.create({
  // TODO 1. 基础地址，超时时间
  baseURL,
  timeout: 10000
})

// 请求拦截器
instance.interceptors.request.use(
  (config) => {
    // TODO 2. 携带token
    const useStore = useUserStore()
    if (useStore.token) {
      //往请求头上携带
      config.headers.Authorization = useStore.token
    }
    return config
  },
  (err) => Promise.reject(err)
)

// 响应拦截器
instance.interceptors.response.use(
  (res) => {
    // TODO 4. 摘取核心响应数据
    if (res.data.code === 0) {
      return res
    }
    // TODO 3. 处理业务失败
    // 处理业务失败, 给错误提示，抛出错误
    ElMessage.error(res.data.message || '服务异常')
    return Promise.reject(res.data)
  },
  (err) => {
    // TODO 5. 处理401错误
    // 错误的特殊情况 => 401 权限不足 或 token 过期 => 拦截到登录
    if (err.response?.status === 401) {
      router.push('/login')
    }

    // 错误的默认情况 => 只要给提示
    ElMessage.error(err.response.data.message || '服务异常')
    return Promise.reject(err)
  }
)

export default instance
export { baseURL }

所需包