方法一：创建audio标签，播放之后获取duration
let audioE = document.createElement("audio"); // 获取时长
audioE.src = configUrl.photoUrl + res.key;
audioE.load();
audioE.oncanplay = function () {setTimeout(()=> {console.log(audioE.duration); _this.setState({ viewAudio: configUrl.photoUrl + res.key,duration: audioE.duration,audioLoading: false,});}, 1500);
}方法二：使用react的一个插件 'react-audio-player';
1，安装并引入
import ReactAudioPlayer from 'react-audio-player';2，使用组件
<div>{/*判断是否已有音频 url*/}{ this.state.site.enAudio ? (<ReactAudioPlayer // ref={(element) => { this.state.duration.enDuration = element }}ref={(element) => { this.setState({duration: element})}}// ref={(element) => { this.state.duration = element }}src={this.state.site.enAudio}onCanPlay={this.onCanPlay}/>) : null}
</div>3，获取音频地址
site: {..._this.state.site,enAudio: global.config.photoUrl + res.key,enAudio_copy: res.key,
},4，播放音频：
onCanPlay = () => { let duration = this.state.duration; let enDuration = duration ? Math.round(duration.audioEl.duration) : null;this.setState({site: {...this.state.site,enDuration: enDuration}})
};