输入admin返回login为false

# 报错信息的截图

# 粘贴全部相关代码，切记添加代码注释（请勿截图）

import React, { Component, Fragment } from 'react';
import axios from 'axios';
import './login.css';
import { Modal, Button, Input } from 'antd';

class Login extends Component {
    constructor(props) {
        super(props)

        this.showModal = this.showModal.bind(this);
        this.handleOk = this.handleOk.bind(this);
        this.handleCancel = this.handleCancel.bind(this);
        this.handleUserChange = this.handleUserChange.bind(this);
        this.handlePasswordChange = this.handlePasswordChange.bind(this);

        this.state = {
            login : false,
            visible: false,
            user : '',
            password : ''
        }
    }
    // 模特框的显示隐藏事件 start
    showModal() {
        this.setState({
          visible: true,
        });
      };

    handleOk() {
        const { user, password } = this.state;
        const url = `http://www.dell-lee.com/react/api/isLogin.json?user=${user}&password=${password}`;
        axios.get(url)
            .then(res => {
                console.log(res);
            })
    };

    handleCancel() {
        this.setState({
            visible: false,
        });
    }
    // 模特框的显示隐藏事件 end

    // input框value值改变事件
    handleUserChange(e) {
        this.setState({
            user : e.target.value
        })
    }
    handlePasswordChange(e) {
        this.setState({
            password : e.target.value
        })
    }
    render() {
        const login = this.state.login;
        return (
            <Fragment>
                <div className="login">
                    {
                        login == true ? <Button type="primary">退出</Button>
                                      : <Button type="primary" onClick={this.showModal}>登录</Button>
                    }
                </div>
                <Modal
                    title="登录"
                    visible={this.state.visible}
                    onOk={this.handleOk}
                    onCancel={this.handleCancel}
                >
                    <Input placeholder="请输入用户名" style={{marginBottom: '10px'}}
                           value={this.state.user}  onChange={this.handleUserChange}
                    />
                    <Input placeholder="请输入密码" type="password"
                           value={this.state.password} onChange={this.handlePasswordChange}
                    />
                </Modal>
            </Fragment>
        )
    }

    componentDidMount() {
        axios.get('http://www.dell-lee.com/react/api/isLogin.json')
            .then(res => {
                this.setState({
                    login : res.data.data.login
                })
            })
    }
}

export default Login;