// 文件上传工具
|
const app = getApp()
|
|
/**
|
* 上传文件到服务器
|
* @param {string} filePath 文件路径
|
* @param {string} fileType 文件类型 image/video/audio
|
* @param {function} onProgress 上传进度回调
|
* @returns {Promise} 返回上传结果
|
*/
|
function uploadFile(filePath, fileType = 'image', onProgress = null) {
|
return new Promise((resolve, reject) => {
|
const uploadTask = wx.uploadFile({
|
url: app.globalData.baseUrl.replace('/graphql', '/upload'), // 假设有文件上传接口
|
filePath: filePath,
|
name: 'file',
|
formData: {
|
'type': fileType,
|
'token': app.globalData.token
|
},
|
header: {
|
'Authorization': app.globalData.token ? `Bearer ${app.globalData.token}` : ''
|
},
|
success: (res) => {
|
try {
|
const data = JSON.parse(res.data)
|
if (data.success) {
|
resolve({
|
url: data.url,
|
fileId: data.fileId,
|
fileName: data.fileName
|
})
|
} else {
|
reject(new Error(data.message || '上传失败'))
|
}
|
} catch (e) {
|
reject(new Error('上传响应解析失败'))
|
}
|
},
|
fail: (err) => {
|
reject(err)
|
}
|
})
|
|
// 监听上传进度
|
if (onProgress && typeof onProgress === 'function') {
|
uploadTask.onProgressUpdate((res) => {
|
onProgress(res.progress)
|
})
|
}
|
})
|
}
|
|
/**
|
* 选择并上传图片
|
* @param {object} options 选择图片选项
|
* @param {function} onProgress 上传进度回调
|
* @returns {Promise} 返回上传结果
|
*/
|
function chooseAndUploadImage(options = {}, onProgress = null) {
|
return new Promise((resolve, reject) => {
|
wx.chooseImage({
|
count: options.count || 1,
|
sizeType: options.sizeType || ['original', 'compressed'],
|
sourceType: options.sourceType || ['album', 'camera'],
|
success: (res) => {
|
const tempFilePaths = res.tempFilePaths
|
|
if (tempFilePaths.length === 1) {
|
// 单个文件上传
|
uploadFile(tempFilePaths[0], 'image', onProgress)
|
.then(resolve)
|
.catch(reject)
|
} else {
|
// 多个文件上传
|
const uploadPromises = tempFilePaths.map(filePath =>
|
uploadFile(filePath, 'image', onProgress)
|
)
|
|
Promise.all(uploadPromises)
|
.then(resolve)
|
.catch(reject)
|
}
|
},
|
fail: reject
|
})
|
})
|
}
|
|
/**
|
* 选择并上传视频
|
* @param {object} options 选择视频选项
|
* @param {function} onProgress 上传进度回调
|
* @returns {Promise} 返回上传结果
|
*/
|
function chooseAndUploadVideo(options = {}, onProgress = null) {
|
return new Promise((resolve, reject) => {
|
wx.chooseVideo({
|
sourceType: options.sourceType || ['album', 'camera'],
|
maxDuration: options.maxDuration || 60,
|
camera: options.camera || 'back',
|
success: (res) => {
|
uploadFile(res.tempFilePath, 'video', onProgress)
|
.then(resolve)
|
.catch(reject)
|
},
|
fail: reject
|
})
|
})
|
}
|
|
/**
|
* 预览图片
|
* @param {string} current 当前显示图片的链接
|
* @param {array} urls 需要预览的图片链接列表
|
*/
|
function previewImage(current, urls = []) {
|
wx.previewImage({
|
current: current,
|
urls: urls.length > 0 ? urls : [current]
|
})
|
}
|
|
/**
|
* 保存图片到相册
|
* @param {string} filePath 图片路径
|
* @returns {Promise}
|
*/
|
function saveImageToPhotosAlbum(filePath) {
|
return new Promise((resolve, reject) => {
|
wx.saveImageToPhotosAlbum({
|
filePath: filePath,
|
success: resolve,
|
fail: reject
|
})
|
})
|
}
|
|
/**
|
* 获取文件信息
|
* @param {string} filePath 文件路径
|
* @returns {Promise}
|
*/
|
function getFileInfo(filePath) {
|
return new Promise((resolve, reject) => {
|
wx.getFileInfo({
|
filePath: filePath,
|
success: resolve,
|
fail: reject
|
})
|
})
|
}
|
|
/**
|
* 压缩图片
|
* @param {string} src 图片路径
|
* @param {number} quality 压缩质量，范围0-100
|
* @returns {Promise}
|
*/
|
function compressImage(src, quality = 80) {
|
return new Promise((resolve, reject) => {
|
wx.compressImage({
|
src: src,
|
quality: quality,
|
success: resolve,
|
fail: reject
|
})
|
})
|
}
|
|
module.exports = {
|
uploadFile,
|
chooseAndUploadImage,
|
chooseAndUploadVideo,
|
previewImage,
|
saveImageToPhotosAlbum,
|
getFileInfo,
|
compressImage
|
}
|
