property-manager-side/wuye-manager-uniapp/components/filePicker/filePicker.vue

<template>
  <view class="simple-uploader">
    <!-- 图片列表 -->
    <view class="image-list">
      <!-- 已选图片 -->
      <view v-for="(img, index) in innerList" :key="index" class="image-item">
        <image :src="img.url || img" class="img" mode="aspectFill" @tap="preview(index)"></image>
        <!-- 删除按钮 -->
        <view class="delete-btn" @tap.stop="remove(index)">
          <uni-icons type="closeempty" size="16" color="#fff"></uni-icons>
        </view>
        <!-- 上传状态 -->
        <view v-if="img.uploading" class="uploading-mask">
          <text>上传中...</text>
        </view>
      </view>
      <!-- 添加按钮 -->
      <view class="add-btn" @tap="choose">
        <uni-icons color="#a6a6a6" type="plusempty" size="25"></uni-icons>
      </view>
    </view>
  </view>
</template>

<script setup>
import { ref, watch } from 'vue'
import baseUrl from '@/api/BaseUrl.js'

// ======================
// Props（可配置）
// ======================
const props = defineProps({
  // 双向绑定的图片列表
  modelValue: {
    type: Array,
    default: () => []
  },
  /** 多选 最多上传数量 默认9*/
  limit: {
    type: Number,
    default: 9
  },
  // 选图来源：album（相册）/ camera（拍照）
  sourceType: {
    type: Array,
    default: () => ['album', 'camera']
  },
  // 图片大小：original（原图）/ compressed（压缩图）
  sizeType: {
    type: Array,
    default: () => ['compressed']
  },
  // 后端上传接口地址（必填）
  uploadUrl: {
    type: String,
    default: ''
  },
  // 后端接收的文件字段名
  fileFieldName: {
    type: String,
    default: 'file'
  },
  // ✅ 新增：上传时携带的额外参数
  extraData: {
    type: Object,
    default: () => ({})
  }
})

// ======================
// Emits
// ======================
const emit = defineEmits(['update:modelValue', 'success', 'fail', 'remove'])

// ======================
// 内部数据
// ======================
const innerList = ref([])

// 监听外部数据变化
watch(
  () => props.modelValue,
  newVal => {
    innerList.value = newVal.map(item => {
      if (typeof item === 'string') {
        return { url: item }
      }
      return item
    })
  },
  { immediate: true, deep: true }
)

// ======================
// 核心方法
// ======================

// 1. 选择图片
function choose() {
  uni.chooseImage({
    count: props.limit,
    sourceType: props.sourceType,
    sizeType: props.sizeType,
    success: async res => {
      const tempPaths = res.tempFilePaths
      // 如果没传上传接口，只返回临时路径
      if (!props.uploadUrl) {
        const newItems = tempPaths.map(path => ({ url: path }))
        innerList.value = [...innerList.value, ...newItems]
        emit(
          'update:modelValue',
          innerList.value.map(i => i.url)
        )
        emit('success', { tempFilePaths: tempPaths })
        return
      }

      // 有上传接口，自动上传
      for (const path of tempPaths) {
        await uploadSingle(path)
      }
    },
    fail: err => {
      console.log('选图失败', err)
      emit('fail', err)
    }
  })
}

// 2. 上传单张图片
async function uploadSingle(filePath) {
  // 先添加到列表，标记为上传中
  const tempItem = { url: filePath, uploading: true }
  innerList.value = [...innerList.value, tempItem]

  return new Promise((resolve, reject) => {
    uni.uploadFile({
      url: `${baseUrl}${props.uploadUrl}`,
      filePath: filePath,
      name: props.fileFieldName,
      header: {
        Authorization: 'Bearer ' + (uni.getStorageSync('token') || ''),
        clientid: 'butler'
      },
      // ✅ 新增：携带额外参数
      formData: props.extraData,
      success: res => {
        try {
          const data = JSON.parse(res.data)

          // 假设后端返回格式：{ code: 200, url: "https://xxx.com/xxx.png" }
          // 如果你的后端返回格式不同，请在这里修改
          if (data.code === 200 || data.url) {
            const finalUrl = data.url || data.data?.url
            // 更新列表，替换为网络 URL
            const index = innerList.value.findIndex(item => item.url === filePath)
            if (index !== -1) {
              innerList.value[index] = { url: finalUrl, uploading: false }
            }
            emit(
              'update:modelValue',
              innerList.value.map(i => i.url)
            )
            emit('success', { url: finalUrl, tempPath: filePath })
            resolve(finalUrl)
          } else {
            throw new Error(data.msg || '上传失败')
          }
        } catch (e) {
          console.error('解析上传结果失败', e)
          remove(innerList.value.findIndex(item => item.url === filePath))
          emit('fail', e)
          reject(e)
        }
      },
      fail: err => {
        remove(innerList.value.findIndex(item => item.url === filePath))
        emit('fail', err)
        reject(err)
      }
    })
  })
}

// 3. 删除图片
function remove(index) {
  const removed = innerList.value.splice(index, 1)[0]
  emit(
    'update:modelValue',
    innerList.value.map(i => i.url)
  )
  emit('remove', { index, url: removed.url })
}

// 4. 预览图片
function preview(index) {
  const urls = innerList.value.map(i => i.url)
  uni.previewImage({
    urls: urls,
    current: index
  })
}
</script>

<style scoped>
.simple-uploader {
  width: 100%;
}

.image-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.image-list > .image-item:not(:last-child) {
  margin-right: 20rpx;
  margin-bottom: 20rpx;
}

.image-item {
  position: relative;
  width: 160rpx;
  height: 160rpx;
}

.img {
  width: 100%;
  height: 100%;
  border-radius: 8rpx;
}

.delete-btn {
  position: absolute;
  top: 0rpx;
  right: 0rpx;
  width: 32rpx;
  height: 32rpx;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.uploading-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 8rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 24rpx;
}

.add-btn {
  width: 160rpx;
  height: 160rpx;
  background-color: #f3f3f3;
  display: flex;
  align-items: center;
  justify-content: center;
}
</style>