v-distpicker组件或Cascader 级联选择器

1.页面

<el-form ref="form" :model="form" :rules="rules" label-width="100px">
    <el-row>
       <el-col :span="12">
          <el-form-item label="姓名" prop="name">
              <el-input v-model="form.name" placeholder="请输入姓名" />
          </el-form-item>
       </el-col>
       <el-col :span="12">
          <el-form-item label="联系电话" prop="telephone">
              <el-input
                v-model="form.telephone"
                placeholder="请输入联系电话"
                maxlength="11"
              />
          </el-form-item>
       </el-col>
       <el-col :span="12">
          <el-form-item label="所在地区" prop="district">
              <!--方式1:安装v-distpicker组件 使用 npm 安装:npm install v-distpicker --save-->
              <!-- <v-distpicker
                @selected="onSelected"
                :province="form.province"
                :city="form.city"
                :area="form.area"
              ></v-distpicker> -->
              <!--方式2:使用cascader组件-->
              <el-cascader
                v-model="form.district"
                placeholder="请选择"
                :options="districtOptions"
                clearable
                filterable
                style="width: 100%"
                @change="onChange"
              ></el-cascader>
          </el-form-item>
       </el-col>
       <el-col :span="24">
          <el-form-item label="详细地址" prop="address">
              <el-input
                v-model="form.address"
                type="textarea"
                placeholder="请输入详细地址"
              />
          </el-form-item>
       </el-col>
     </el-row>
</el-form>

 2.js

<script>
import VDistpicker from "v-distpicker";//方式1 注册v-distpicker组件
import { getCascaderOptions } from '@/district/provinceCity';//方式2 导入provinceCity.js中的方法
export default {
  name: "District",
  components: { VDistpicker },
  data() {
    var checkPhone = (rule, value, callback) => {
      if (!value) {
        return callback(new Error("联系电话不能为空"));
      } else {
        const reg = /^1[3|4|5|7|8][0-9]\d{8}$/;
        if (reg.test(value)) {
          callback();
        } else {
          return callback(new Error("请输入正确的电话号码"));
        }
      }
    };
    return {
      // 弹出层标题
      title: "",
      //所在地区组件
      districtOptions: [],
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        name: [{ required: true, message: "姓名不能为空", trigger: "blur" }],
        telephone: [
          {
            required: true,
            validator: checkPhone,
            trigger: "blur",
          },
        ],
        district: [
          { required: true, message: "所在地区不能为空", trigger: "blur" },
        ],
        address: [
          { required: true, message: "详细地址不能为空", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    //调用省市区数据放入数组中(方式2)
    this.districtOptions = getCascaderOptions();
  },
  methods: { 
    //所属地区(方式1)
    // onSelected(data) {
    //   this.form.province = data.province.value;
    //   this.form.city = data.city.value;
    //   this.form.area = data.area.value;
    // },
    //所属地区(方式2)
     onChange(data) {
       this.form.province = this.form.district[0];
       this.form.city = this.form.district[1];
       this.form.area = this.form.district[2];
     },
    /** 修改按钮操作 */
    //handleUpdate(row) {
    //  getAddress(row.addressId).then((response) => {
           //将district合并到form中(方式2)
    //     this.form = {
    //      ...this.form,
    //     ...response.data,
    //      district: [
    //        response.data.province,
    //        response.data.city,
    //        response.data.area,
    //      ],
    //    };
    //    this.title = "修改";
    //  });
    //},
  },
};
</script>

3.省市区数据provinceCity.js文件(方式2)

省市区三级联动—provinceCity.js_js三级联动-Javascript文档类资源-CSDN下载