阿里云 oss JavaScript客户端签名文件上传 vue2.0
官方文档地址https://help.aliyun.com/document_detail/31925.html?spm=5176.doc31923.6.631.SAJk7p 官方文档内给的demo是传统的代码引入方式，用到的模块有crypto、hmac、sha1、base64、plupload。这些模块都是定制化的，用npm安装指定的模块会出现相应的方法找不到未定义情况，所以想在vue2.0项目中使用oss上传，需要自己定义一个crypto方法，把hmac、sha1方法放到crypto对象中，base64方法是独立的，直接把demo中的文件放入项目中,用export default dao's'hvar base64map = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' var Crypto = {} var util = Crypto.util = { // Bit-wise rotate left rotl: function (n, b) { return (n << b) | (n >>> (32 - b)) }, // Bit-wise rotate right rotr: function (n, b) { return (n << (32 - b)) | (n >>> b) }, // Swap big-endian to little-endian and vice versa endian: function (n) { // If number given, swap endian if (n.constructor === Number) { return util.rotl(n, 8) & 0x00FF00FF | util.rotl(n, 24) & 0xFF00FF00 } // Else, assume array and swap all items for (var i = 0; i < n.length; i++) { n[i] = util.endian(n[i]) } return n }, // Generate an array of any length of random bytes randomBytes: function (n) { for (var bytes = []; n > 0; n--) { bytes.push(Math.floor(Math.random() * 256)) } return bytes }, // Convert a string to a byte array stringToBytes: function (str) { var bytes = [] for (var i = 0; i < str.length; i++) { bytes.push(str.charCodeAt(i)) } return bytes }, // Convert a byte array to a string bytesToString: function (bytes) { var str = [] for (var i = 0; i < bytes.length; i++) { str.push(String.fromCharCode(bytes[i])) } return str.join('') }, // Convert a string to big-endian 32-bit words stringToWords: function (str) { var words = [] for (var c = 0, b = 0; c < str.length; c++, b += 8) { words[b >>> 5] |= str.charCodeAt(c) << (24 - b % 32) } return words }, // Convert a byte array to big-endian 32-bits words bytesToWords: function (bytes) { var words = [] for (var i = 0, b = 0; i < bytes.length; i++, b += 8) { words[b >>> 5] |= bytes[i] << (24 - b % 32) } return words }, // Convert big-endian 32-bit words to a byte array wordsToBytes: function (words) { var bytes = [] for (var b = 0; b < words.length * 32; b += 8) { bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF) } return bytes }, // Convert a byte array to a hex string bytesToHex: function (bytes) { var hex = [] for (var i = 0; i < bytes.length; i++) { hex.push((bytes[i] >>> 4).toString(16)) hex.push((bytes[i] & 0xF).toString(16)) } return hex.join('') }, // Convert a hex string to a byte array hexToBytes: function (hex) { var bytes = [] for (var c = 0; c < hex.length; c += 2) { bytes.push(parseInt(hex.substr(c, 2), 16)) } return bytes }, // Convert a byte array to a base-64 string bytesToBase64: function (bytes) { // Use browser-native function if it exists if (typeof btoa === 'function') return btoa(util.bytesToString(bytes)) var base64 = [] var overflow for (var i = 0; i < bytes.length; i++) { switch (i % 3) { case 0: base64.push(base64map.charAt(bytes[i] >>> 2)) overflow = (bytes[i] & 0x3) << 4 break case 1: base64.push(base64map.charAt(overflow | (bytes[i] >>> 4))) overflow = (bytes[i] & 0xF) << 2 break case 2: base64.push(base64map.charAt(overflow | (bytes[i] >>> 6))) base64.push(base64map.charAt(bytes[i] & 0x3F)) overflow = -1 } } // Encode overflow bits, if there are any if (overflow !== undefined && overflow !== -1) { base64.push(base64map.charAt(overflow)) } // Add padding while (base64.length % 4 !== 0) base64.push('=') return base64.join('') }, // Convert a base-64 string to a byte array base64ToBytes: function (base64) { // Use browser-native function if it exists if (typeof atob === 'function') return util.stringToBytes(atob(base64)) // Remove non-base-64 characters base64 = base64.replace(/[^A-Z0-9+/]/ig, '') var bytes = [] for (var i = 0; i < base64.length; i++) { switch (i % 4) { case 1: bytes.push((base64map.indexOf(base64.charAt(i - 1)) << 2) | (base64map.indexOf(base64.charAt(i)) >>> 4)) break case 2: bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0xF) << 4) | (base64map.indexOf(base64.charAt(i)) >>> 2)) break case 3: bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0x3) << 6) | (base64map.indexOf(base64.charAt(i)))) break } } return bytes } } Crypto.HMAC = function (hasher, message, key, options) { key = key.length > hasher._blocksize * 4 ? hasher(key, { asBytes: true }) : util.stringToBytes(key) // XOR keys with pad constants var okey = key var ikey = key.slice(0) for (var i = 0; i < hasher._blocksize * 4; i++) { okey[i] ^= 0x5C ikey[i] ^= 0x36 } var hmacbytes = hasher(util.bytesToString(okey) + hasher(util.bytesToString(ikey) + message, { asString: true }), { asBytes: true }) return options && options.asBytes ? hmacbytes : options && options.asString ? util.bytesToString(hmacbytes) : util.bytesToHex(hmacbytes) } var SHA1 = Crypto.SHA1 = function (message, options) { var digestbytes = util.wordsToBytes(SHA1._sha1(message)) return options && options.asBytes ? digestbytes : options && options.asString ? util.bytesToString(digestbytes) : util.bytesToHex(digestbytes) } SHA1._sha1 = function (message) { var m = util.stringToWords(message) var l = message.length * 8 var w = [] var H0 = 1732584193 var H1 = -271733879 var H2 = -1732584194 var H3 = 271733878 var H4 = -1009589776 // Padding m[l >> 5] |= 0x80 << (24 - l % 32) m[((l + 64 >>> 9) << 4) + 15] = l for (var i = 0; i < m.length; i += 16) { var a = H0 var b = H1 var c = H2 var d = H3 var e = H4 for (var j = 0; j < 80; j++) { if (j < 16) { w[j] = m[i + j] } else { var n = w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16] w[j] = (n << 1) | (n >>> 31) } var t = ((H0 << 5) | (H0 >>> 27)) + H4 + (w[j] >>> 0) + (j < 20 ? (H1 & H2 | ~H1 & H3) + 1518500249 : j < 40 ? (H1 ^ H2 ^ H3) + 1859775393 : j < 60 ? (H1 & H2 | H1 & H3 | H2 & H3) - 1894007588 : (H1 ^ H2 ^ H3) - 899497514) H4 = H3 H3 = H2 H2 = (H1 << 30) | (H1 >>> 2) H1 = H0 H0 = t } H0 += a H1 += b H2 += c H3 += d H4 += e } return [H0, H1, H2, H3, H4] } // Package private blocksize SHA1._blocksize = 16 export default Crypto 以上是crypto方法，这里需要注意的是，如果vue项目中用到了代码校验，这里的代码会有语法报错，仔细改掉就可以了 plupload模块直接用npm安装就好了，相应文档地址http://www.phpin.net/tools/plupload/ 接下来就可以按照官方demo 进行相应的修改，配置自己的参数，进行上传测试
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