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src/utils/upload/alioss.ts

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+import Crypto from 'crypto-js'
+import {Base64} from 'js-base64'
+import {i18n} from "@/locale";
+
+const env = {
+    uploadImageUrl: 'https://wendy123.oss-ap-southeast-1.aliyuncs.com/', // 默认存在根目录，可根据需求改
+    accessKeySecret: 'TSZOD1jULKPFsNp2zKhAopLe3c3AiH', // accessKeySecret 去你的阿里云上控制台上找
+    ossAccessKeyId: 'LTAI5tQq1bSBFCfsbvwX6DqQ', // AccessKeyId 去你的阿里云上控制台上找
+    timeout: 87600, // 这个是上传文件时Policy的失效时间
+}
+
+const getPolicyBase64 = function (): string {
+    const date = new Date()
+    date.setHours(date.getHours() + env.timeout)
+    const expirationTime = date.toISOString()
+    const policyText = {
+        expiration: expirationTime, // 设置该Policy的失效时间，超过这个失效时间之后，就没有办法通过这个policy上传文件了
+        conditions: [
+            ['content-length-range', 0, 2000 * 1024 * 1024], // 设置上传文件的大小限制,2G
+        ],
+    }
+
+    return Base64.encode(JSON.stringify(policyText))
+}
+
+const getSignature = function (policyBase64: string): string {
+    const bytes = Crypto.HmacSHA1(policyBase64, env.accessKeySecret)
+    return Crypto.enc.Base64.stringify(bytes)
+}
+
+// 上传图片到阿里云oss
+const upload = function (filePath: string, suffix = '.png', dir = 'app/image/') {
+    return new Promise((resolve, reject) => {
+        if (!filePath) {
+            return uni.showToast({icon: "none", title: i18n.global.t('common.prompt.picture-wrong-please-try-again')})
+        }
+
+        // 图片名字 可以自行定义，这里是采用当前的时间戳 + 150内的随机数来给图片命名的
+        const fileKey = dir + new Date().getTime() + Math.floor(Math.random() * 150) + suffix
+
+        const aliyunServerURL = env.uploadImageUrl // OSS地址，需要https
+        const policyBase64 = getPolicyBase64()
+        const signature = getSignature(policyBase64) // 获取签名
+
+        uni.uploadFile({
+            url: aliyunServerURL, // 开发者服务器 url
+            filePath: filePath, // 要上传文件资源的路径
+            name: 'file', // 必须填file
+            formData: {
+                key: fileKey,
+                policy: policyBase64,
+                OSSAccessKeyId: env.ossAccessKeyId,
+                signature: signature,
+                success_action_status: '200',
+            },
+            success: function (res) {
+                console.log(res)
+                if (res.statusCode !== 200) {
+                    reject(new Error('upload error:' + JSON.stringify(res)))
+                    return
+                }
+                resolve(aliyunServerURL + fileKey)
+            },
+            fail: function (err) {
+                console.log(err)
+                uni.hideLoading()
+                uni.showToast({icon: "none", title: i18n.global.t('common.prompt.up-failed')})
+                reject(err)
+            },
+        })
+    })
+}
+
+export {upload}