小编Bak*_*sra的帖子

我想在 AJAX 调用后渲染组件。ReactJS

import React from 'react';
import { render } from 'react-dom';
import { Card } from './components/Card';

class App extends React.Component{
    constructor(){
        super();
        this.user = [];
        console.log("constructor");
}
    componentWillMount() {
        console.log("componentWillMount 1");
               $.ajax({
                   method:'get',
                   crossDomain: true,
                   url: "http://127.0.0.1:8000/product/"
               }).done(function(res) {
                   this.user=res;
                   console.log("componentWillMount 2");

               })
    }

    render(){
        var us = this.user
        console.log("render");
        return(
            <div className="container-fluid">
                <div className="container">
                    <div className="row">
                    {(function (rows, i, len) {
                        while (i <len) {
                            rows.push(<div className="col-sm-3">
                                <Card user={us[i]}/>
                                </div>)
                                i++
                        }
                        return rows;
                    })([], 0, …