vue与element小案例、小技巧_vue结合element实例

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上传图片与预览

效果图

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html

<template>
    <div class="box">
        <el-popover width="200" placement="top" trigger="hover">
            <el-image v-if="avatarImg" width="200px" style="width: 100%; height: 130px; border-radius: 5px;"
                :src="avatarImg" :preview-src-list="[avatarImg]">
            </el-image>
            <div v-else
                style="width: 100%; height: 130px; line-height: 130px; text-align: center; background-color: #eeeeee; border-radius: 4px; cursor: pointer;"
                @click.prevent="handleUpload">
                暂无图片
            </div>
            <template #reference>
                <el-button class="coll" type="info" @click.prevent="handleUpload">上传图片</el-button>
            </template>
        </el-popover>
    </div>
</template>
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JavaScript

export default {
    name: 'Login',
    data() {
        return {
            avatarImg: ''
        }
    },
    methods: {
        async handleUpload() {
            try {
                const [fileHandle] = await window.showOpenFilePicker();
                const file = await fileHandle.getFile();

                const formData = new FormData();
                formData.append('file', file);

                this.avatarImg = URL.createObjectURL(file);

                // 上传到服务器
                // const response = await fetch('/upload', {
                //     method: 'POST',
                //     body: formData
                // });

                // console.log('response: ', response);
            } catch (error) {
                console.error('Error selecting file:', error);
            }
        }
    }
}
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style

.box {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;

    .login-btn-coll {
        .coll {
            width: 100%;
            height: 50px;
        }
    }
}
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