348 lines
8.0 KiB
Vue
348 lines
8.0 KiB
Vue
<template>
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<view class="image-uploader">
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<!-- 上传区域 -->
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<view class="upload-area" @click="chooseImage">
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<view v-if="!imageUrl" class="upload-placeholder">
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<text class="upload-icon">📷</text>
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<!-- <text class="upload-text">{{ placeholder || '点击选择图片' }}</text>-->
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<!-- <text class="upload-hint">{{ hint || '支持 JPG、PNG 格式' }}</text>-->
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</view>
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<image v-else :src="imageUrl" class="preview-image" mode="aspectFit"></image>
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</view>
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<!-- <!– 错误提示 –>-->
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<!-- <view v-if="errorMessage" class="error-message">-->
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<!-- <text class="error-text">{{ errorMessage }}</text>-->
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<!-- </view>-->
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</view>
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</template>
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<script>
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import { getQiniuUploadToken, uploadToQiniu } from '@/api/upload.js'
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export default {
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name: 'ImageUploader',
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props: {
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// 占位符文本
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placeholder: {
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type: String,
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default: '点击选择图片',
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},
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// 提示文本
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hint: {
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type: String,
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default: '支持 JPG、PNG 格式',
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},
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// 是否显示删除按钮
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showDelete: {
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type: Boolean,
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default: true,
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},
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// 上传区域高度
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height: {
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type: String,
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default: '400rpx',
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},
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width: {
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type: String,
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default: '400rpx',
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},
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// 是否自动上传
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autoUpload: {
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type: Boolean,
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default: true,
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},
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// 最大文件大小（MB）
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maxSize: {
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type: Number,
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default: 10,
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},
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},
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data() {
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return {
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selectedImagePath: '', // 选择的图片路径
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imageUrl: '', // 预览图片URL
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uploadResult: '', // 上传成功后的完整URL
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uploading: false, // 上传状态
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errorMessage: '', // 错误信息
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qiniuToken: '', // 七牛云上传token
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}
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},
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mounted() {
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this.getQiniuToken()
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},
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methods: {
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// 选择图片
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chooseImage() {
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if (this.uploading) return
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uni.chooseImage({
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count: 1,
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sizeType: ['compressed'],
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sourceType: ['album', 'camera'],
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success: res => {
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const filePath = res.tempFilePaths[0]
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// 检查文件大小
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if (!this.checkFileSize(filePath)) {
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return
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}
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this.selectedImagePath = filePath
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this.imageUrl = filePath
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this.uploadResult = ''
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this.errorMessage = ''
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// 自动上传
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if (this.autoUpload) {
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this.uploadImage()
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}
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// 触发选择事件
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this.$emit('select', {
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filePath,
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size: res.tempFiles[0].size,
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})
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},
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fail: err => {
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console.error('选择图片失败:', err)
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this.errorMessage = '选择图片失败'
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this.$emit('error', err)
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},
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})
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},
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// 检查文件大小
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checkFileSize(filePath) {
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return new Promise(resolve => {
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uni.getFileInfo({
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filePath,
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success: res => {
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const sizeInMB = res.size / (1024 * 1024)
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if (sizeInMB > this.maxSize) {
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this.errorMessage = `文件大小不能超过 ${this.maxSize}MB`
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uni.showToast({
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title: `文件大小不能超过 ${this.maxSize}MB`,
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icon: 'none',
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})
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resolve(false)
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} else {
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resolve(true)
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}
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},
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fail: () => {
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resolve(true) // 如果获取文件信息失败，默认允许上传
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},
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})
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})
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},
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// 上传图片
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async uploadImage() {
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if (!this.selectedImagePath) {
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this.errorMessage = '请先选择图片'
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return
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}
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this.uploading = true
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this.errorMessage = ''
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try {
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// 确保有token
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if (!this.qiniuToken) {
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await this.getQiniuToken()
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}
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// 生成唯一文件名
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const key = `uploads/${Date.now()}_${Math.random().toString(36).slice(2)}.jpg`
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// 上传到七牛云
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const result = await uploadToQiniu(this.selectedImagePath, this.qiniuToken, key)
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// 构建完整的图片URL
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this.uploadResult = `https://api.ccttiot.com/${result.key}`
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// 触发上传成功事件
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this.$emit('success', {
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url: this.uploadResult,
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key: result.key,
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originalPath: this.selectedImagePath,
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})
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// 显示成功提示
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uni.showToast({
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title: '上传成功',
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icon: 'success',
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})
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} catch (error) {
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console.error('上传失败:', error)
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this.errorMessage = error.message || '上传失败'
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this.$emit('error', error)
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} finally {
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this.uploading = false
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}
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},
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// 删除图片
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deleteImage() {
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uni.showModal({
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title: '确认删除',
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content: '确定要删除这张图片吗？',
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success: res => {
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if (res.confirm) {
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this.selectedImagePath = ''
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this.imageUrl = ''
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this.uploadResult = ''
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this.errorMessage = ''
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this.$emit('delete')
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}
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},
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})
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},
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// 获取七牛云token
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async getQiniuToken() {
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try {
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const res = await getQiniuUploadToken()
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console.log('Token响应:', res)
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if (res.code === 200) {
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// 尝试不同的可能字段名
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const token = res.data
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if (token) {
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this.qiniuToken = token
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console.log('Token获取成功:', token.substring(0, 20) + '...')
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} else {
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throw new Error('Token字段不存在')
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}
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} else {
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throw new Error(res.msg || '获取Token失败')
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}
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} catch (error) {
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console.error('获取Token失败:', error)
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this.errorMessage = `获取上传凭证失败: ${error.message}`
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this.$emit('error', error)
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}
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},
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// 手动上传方法（供外部调用）
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manualUpload() {
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if (!this.autoUpload) {
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this.uploadImage()
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}
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},
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// 获取上传结果
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getUploadResult() {
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return {
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url: this.uploadResult,
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localPath: this.selectedImagePath,
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isUploaded: !!this.uploadResult,
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}
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},
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// 重置组件
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reset() {
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this.selectedImagePath = ''
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this.imageUrl = ''
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this.uploadResult = ''
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this.uploading = false
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this.errorMessage = ''
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},
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},
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}
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</script>
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<style lang="scss" scoped>
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.image-uploader {
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.upload-area {
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width: v-bind(width);
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height: v-bind(height);
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background: #fff;
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border-radius: 16rpx;
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display: flex;
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align-items: center;
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justify-content: center;
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border: 2rpx dashed #ddd;
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position: relative;
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overflow: hidden;
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.upload-placeholder {
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text-align: center;
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.upload-icon {
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display: block;
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font-size: 60rpx;
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margin-bottom: 20rpx;
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}
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.upload-text {
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display: block;
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font-size: 32rpx;
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color: #333;
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margin-bottom: 10rpx;
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}
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.upload-hint {
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display: block;
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font-size: 24rpx;
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color: #999;
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}
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}
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.preview-image {
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width: 100%;
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height: 100%;
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border-radius: 16rpx;
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}
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.delete-btn {
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position: absolute;
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top: 16rpx;
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right: 16rpx;
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width: 60rpx;
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height: 60rpx;
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background: rgba(0, 0, 0, 0.6);
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border-radius: 50%;
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display: flex;
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align-items: center;
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justify-content: center;
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.delete-icon {
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color: #fff;
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font-size: 32rpx;
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font-weight: bold;
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}
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}
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}
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.upload-status {
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margin-top: 16rpx;
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text-align: center;
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.status-text {
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font-size: 26rpx;
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color: #666;
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}
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}
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.error-message {
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margin-top: 16rpx;
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padding: 16rpx;
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background: #fff2f0;
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border: 1rpx solid #ffccc7;
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border-radius: 8rpx;
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.error-text {
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font-size: 26rpx;
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color: #ff4d4f;
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line-height: 1.4;
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}
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}
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}
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</style>
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