React如何区分Class和function定义的组件(2)-木庄网络博客

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import React, { useState, useEffect, Component} from "react";
import { useLocation } from "react-router-dom";
import qs from "qs"; //qs用来格式化数据
import { movieDetail } from "../../services/movies";
  
//使用class定义组件中this指向复杂，不推荐使用
  
export default class Detail extends Component {
  constructor(props) {
    super(props);
    console.log(props);
    this.state = {
      movie: {
        video: {
          url: "",
        },
      },
    };
  }
  async componentDidMount() {
    console.log(this.props.location.search); //url传参
    //qs第二个参数表示过滤掉前缀
    const query = qs.parse(this.props.location.search, {
      ignoreQueryPrefix: true,
    });
    console.log(query);
    const result = await movieDetail(query.id);
    console.log(result);
    this.setState({
      movie: result.data.data.basic,
    });
    document
      .querySelectorAll(".nav ul li")[1]
      .querySelector("a")
      .classList.add("active");
  }
  componentWillUnmount() {
    document
      .querySelectorAll(".nav ul li")[1]
      .querySelector("a")
      .classList.remove("active");
  }
  render() {
    return (
      <div>
        <h1>{this.state.movie.name}</h1>
        <p>{this.state.movie.story}</p>
        <video controls autoPlay src={this.state.movie.video.url}></video>
      </div>
    );
  }
}