往期内容

express+vue在线im实现【一】
express+vue在线im实现【二】
express+vue在线im实现【三】

本期示例

本期总结

• 支持了音频的录制和发送，如果觉得对你有用，还请点个免费的收藏与关注

下期安排

• 在线语音

具体实现

<template>
    <kl-dialog width="300px" center :header="false" :footer="false" :dialogVisible.sync="visable">
        <div class="flex-column-wrap p-20 flex-center-wrap pr p-t-40" @click.stop="() => {}">
            <i
                class="f-20 f-600 c-555 cu el-icon-close p-a el-icon-close-1"
                @click.stop="close"
            ></i>
            <e-image
                :height="80"
                :lazy="false"
                src="http://139.9.210.43:5000/netdist/kl1718850348458vjab00h8x4d-1718850348280~1~.png"
            ></e-image>

            <!-- 录制时长 -->
            <div class="m-t-20">录制时长{{ getAudioTime() }}</div>

            <div class="flex-wrap m-t-20">
                <el-button size="small" type="info" @click.stop="reload">重新录制</el-button>
                <el-button size="small" type="warning" @click.stop="stop">停止</el-button>
                <el-button size="small" type="success" @click.stop="play">播放</el-button>
                <el-button :disabled="audioTime == 0" size="small" type="danger" @click.stop="send"
                    >发送</el-button
                >
            </div>
        </div>

        <!-- 语音播放 -->
        <audioPlay
            v-model="isShowAudio"
            :url="parseResourceUrl(filePath)"
            @ended="isShowAudio = false"
        ></audioPlay>
    </kl-dialog>
</template>

<script>
export default {
    components: {
        audioPlay: () => import('@/components/audioPlay/index.vue'),
    },
    props: {
        value: {
            type: Boolean,
            default: false,
        },
    },
    data() {
        return {
            isShowAudio: false,
            filePath: '',
            file: null,
            mediaRecorder: null,
            isStart: false,
            audioTime: 0,
            timer: null,
        }
    },
    computed: {
        visable: {
            get() {
                return this.value
            },
            set() {
                return this.$emit('input', !this.value)
            },
        },
    },
    watch: {
        value(val) {
            if (val) {
                // 进入直接开始录音
                this.init()
                return
            }
        },
    },
    beforeDestroy() {
        this.clearTimer()
        this.audioTime = 0
    },
    methods: {
        close() {
            this.filePath = ''
            this.mediaRecorder = null
            this.file = null
            this.visable = false
            this.clearTimer()
            this.audioTime = 0
        },
        getAudioTime() {
            return (this.audioTime / 1000).toFixed(2) + 's'
        },
        reload() {
            this.filePath = ''
            this.mediaRecorder = null
            this.file = null
            this.init()
        },
        stop() {
            this.clearTimer()
            this.mediaRecorder.stop()
        },
        play() {
            if (!this.filePath) {
                this.stop()
            }

            this.isShowAudio = true
        },
        async send() {
            if (!this.filePath) {
                this.stop()

                await this.sleep()
            }

            this.commonUploadFile(this.file, 'im', 500)
                .then(({ url = '' }) => {
                    this.$emit('pushInfo', {
                        msg_type: '5',
                        content: url,
                        time: this.audioTime,
                    })
                    this.close()
                })
                .catch(() => {})
        },
        clearTimer() {
            clearInterval(this.timer)
            this.timer = null
        },
        init() {
            if (this.mediaRecorder) return

            this.clearTimer()
            this.audioTime = 0
            // 请求麦克风权限
            navigator.mediaDevices
                .getUserMedia({ audio: true })
                .then((stream) => {
                    // 创建MediaRecorder实例
                    const mediaRecorder = new MediaRecorder(stream)

                    // 处理录音数据
                    const recordedChunks = []
                    mediaRecorder.ondataavailable = (event) => {
                        if (event.data.size > 0) {
                            recordedChunks.push(event.data)
                        }
                    }

                    // 停止录音时的处理
                    mediaRecorder.onstop = () => {
                        // 将数据块转换为Blob对象
                        const blob = new Blob(recordedChunks, { type: 'audio/ogg; codecs=opus' })
                        const fileName = 'recordedAudio.ogg'

                        this.file = new File([blob], fileName, {
                            type: 'audio/ogg', // 这里不需要指定codecs，因为Blob已经包含了它
                        })
                        // TODO:还没做
                        this.filePath = this.getObjectURL(this.file)
                    }

                    // 开始录音
                    mediaRecorder.start()
                    this.mediaRecorder = mediaRecorder

                    // 计时器
                    this.timer = setInterval(() => {
                        // 最大60s
                        if (this.audioTime >= 60 * 1000) {
                            this.clearTimer()
                            return
                        }
                        this.audioTime += 50
                    }, 50)
                })
                .catch((err) => {
                    console.error('Error accessing the microphone:', err)
                })
        },
        // 获取视频的本地地址
        getObjectURL(file) {
            var url = null
            // 下面函数执行的效果是一样的，只是需要针对不同的浏览器执行不同的 js 函数而已
            if (window.createObjectURL !== undefined) {
                // basic
                url = window.createObjectURL(file)
            } else if (window.URL !== undefined) {
                // mozilla(firefox)
                url = window.URL.createObjectURL(file)
            } else if (window.webkitURL !== undefined) {
                // webkit or chrome
                url = window.webkitURL.createObjectURL(file)
            }
            return url
        },
    },
}
</script>

<style lang="scss" scoped>
.el-icon-close-1 {
    top: 5px;
    right: 5px;
}
</style>