reactjs - 表中的每条记录应该有一个唯一的 `key` 属性，或者将 `rowKey` 设置为唯一的主键

Question

我正在用ant design渲染一个表格，它工作正常，但控制台中有一个警告:

Each record in table should have a unique key prop,or set rowKey to an unique primary key

我的代码如下:

import React, { Component } from 'react';
import {  Table} from 'antd';
import { adalApiFetch } from '../../adalConfig';


class ListTenants extends Component {

    constructor(props) {
        super(props);
        this.state = {
            data: []
        };
    }



    fetchData = () => {
        adalApiFetch(fetch, "/Tenant", {})
          .then(response => response.json())
          .then(responseJson => {
            if (!this.isCancelled) {
                const results= responseJson.map(row => ({
                    ClientId: row.ClientId,
                    ClientSecret: row.ClientSecret,
                    Id: row.Id,
                    SiteCollectionTestUrl: row.SiteCollectionTestUrl,
                    TenantDomainUrl: row.TenantDomainUrl
                  }))
              this.setState({ data: results });
            }
          })
          .catch(error => {
            console.error(error);
          });
      };


    componentDidMount(){
        this.fetchData();
    }

    render() {
        const columns = [
                {
                    title: 'Client Id',
                    dataIndex: 'ClientId',
                    key: 'ClientId'
                }, 
                {
                    title: 'Site Collection TestUrl',
                    dataIndex: 'SiteCollectionTestUrl',
                    key: 'SiteCollectionTestUrl',
                },
                {
                    title: 'Tenant DomainUrl',
                    dataIndex: 'TenantDomainUrl',
                    key: 'TenantDomainUrl',
                }
        ];



        return (
            <Table columns={columns} dataSource={this.state.data} />
        );
    }
}

export default ListTenants;

Answer 1

只需在标签链接中添加一个唯一的键值即可:

   <Table
   columns={columns}
   dataSource={this.state.data} 
   rowKey="Id" />  // unique key

希望这有帮助