reactjs - JSON 文件中的数据，React 表跨域错误

问题描述

我有一个我试图理解的跨域错误。我正在尝试将 JSON 文件中的数据传递到我的表组件中。到目前为止，react 会引发跨源错误。请告知我是否错误地提取数据或我做错了什么。

文件Table.js

/**  
*  Table.js 
* Demon
* Description: Table Interface
* Dependencies:  React 
* Modules: NavgiationBar
*/

import React from 'react';
import { data } from "../../data/SampleData.js";
import TableItem from '../TableItem.js'
class Table extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            jsonData: []
        };
    }

    //getter methods
    parseData() {
        var jsonData = JSON.parse(data);

    }

    componentDidMount() {
        this.setState({jsonData: this.parseData()})
        console.log(this.state.jsonData);
    }

    render() {
        let jsonData = this.parseData();
        let fieldRows = [];
        //loop through the data
        for (let i=0; i<jsonData.length; i++) {
           fieldRows.push(
            <TableItem 
                key={i} accountNum={jsonData.MainAcc} accountOwnerName={jsonData.MainAccName}
                dsmName = {jsonData.DSMname} salesTotal={jsonData.Sales_2018} 
            />
        );
        }
        return (
            <div className= "container">
            <section className ='table'>
                <table>
                    <thead>
                            <tr>
                                <th> Account Number</th>
                                <th> Account Owner Name</th>
                                <th> DSM Name</th>
                                <th> 2018 Sales</th>
                            </tr>
                    </thead>
                </table>
                <table>
                    <tbody>
                        <tr> 
                            <li> Hi</li>
                        </tr>
                    </tbody>
                </table>
            </section> 
            </div>

        );
    }

}

export default Table

文件App.js

import React from 'react';
import logo from './logo.svg';
import './App.css';
import 'bootstrap/dist/css/bootstrap.min.css';
import Table from "./components/Table/Table.js";
import NavgiationBar from './components/NavgiationBar';

function App() {
  return (
    <div className="content">
      <NavgiationBar><span> </span></NavgiationBar>
      <h1> hi </h1>
      <Table/>
    </div>

  );
}

export default App;

我也使用create-react-app样板来创建类。我也在寻找将类传递到App.js其中的逻辑的示例。

Sample Data 
var data = [
  {
    "Segment": "C10 - Commercial-New",
    "MainAcc": "123sdf",
    "MainAccName": "TROJAN house",
    "Telephone": "+999999",
    "E-MailAddress": "#",
    "Address": "120 North AVE",
    "City": "Santa Ana",
    "State": "California",
    "ZipCode": "92705-4415",
    "SalesRep": "Mario",
    "DSMname": "Manuel",
    "Sales_2018": 833.73,
    "Frequency": 4,
    "Avg_Recency": 71
  },
  {
    "Segment": "C10 - Commercial-New",
    "MainAcc": "12367aq",
    "MainAccName": " PAINTING",
    "Telephone": "+1235656",
    "E-MailAddress": "#",
    "Address": "3073 12st ",
    "City": "Salinas",
    "State": "California",
    "ZipCode": "93901",
    "SalesRep": "Killer Galdos",
    "DSMname": "Kim West",
    "Sales_2018": 194.68,
    "Frequency": 2,
    "Avg_Recency": 42
  }
];

标签： reactjs

reactjs - JSON 文件中的数据，React 表跨域错误

问题描述

解决方案

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