小程序编译0.0.0

js_sdk/yushijie-ossutil/ossutil/uploadFile.js

@@ -0,0 +1,86 @@
+const env = require('./config.js'); //配置文件，在这文件里配置你的OSS keyId和KeySecret,timeout:87600;
+
+const base64 = require('./base64.js');//Base64,hmac,sha1,crypto相关算法
+require('./hmac.js');
+require('./sha1.js');
+const Crypto = require('./crypto.js');
+
+/*
+ *上传文件到阿里云oss
+ *@param - filePath :图片的本地资源路径
+ *@param - dir:表示要传到哪个目录下
+ *@param - successc:成功回调
+ *@param - failc:失败回调
+ */ 
+const uploadFile = function (filePath, dir, successc, failc) {
+  if (!filePath || filePath.length < 9) {
+    uni.showModal({
+      title: '图片错误',
+      content: '请重试',
+      showCancel: false,
+    })
+    return;
+  }
+  
+  //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 aliyunFileKey = dir + new Date().getTime() + Math.floor(Math.random() * 150) + '.png';
+  
+  const aliyunServerURL = env.uploadImageUrl;//OSS地址，需要https
+  const accessid = env.OSSAccessKeyId;
+  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': aliyunFileKey,
+      'policy': policyBase64,
+      'OSSAccessKeyId': accessid,
+      'signature': signature,
+      'success_action_status': '200',
+    },
+    success: function (res) {
+			console.log(res,45);
+      if (res.statusCode != 200) {
+        failc(new Error('上传错误:' + JSON.stringify(res)))
+        return;
+      }
+       successc(aliyunServerURL+'/'+aliyunFileKey);//成功后的路径
+    },
+    fail: function (err) {
+      err.wxaddinfo = aliyunServerURL;
+      failc(err);
+    },
+  })
+}
+
+const getPolicyBase64 = function () {
+  let date = new Date();
+  date.setHours(date.getHours() + env.timeout);
+  let srcT = date.toISOString();
+  const policyText = {
+    "expiration": srcT, //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, 5 * 1024 * 1024] // 设置上传文件的大小限制,5mb
+    ]
+  };
+
+  const policyBase64 = base64.encode(JSON.stringify(policyText));
+	console.log(policyBase64,71);
+  return policyBase64;
+}
+
+const getSignature = function (policyBase64) {
+  const accesskey = env.AccessKeySecret;
+
+  const bytes = Crypto.HMAC(Crypto.SHA1, policyBase64, accesskey, {
+    asBytes: true
+  });
+  const signature = Crypto.util.bytesToBase64(bytes);
+console.log(signature,84);
+  return signature;
+}
+
+module.exports = uploadFile;