自习室优化ok

lib/utils/transfer/upload.dart

@@ -0,0 +1,55 @@
+import 'dart:io';
+
+import 'package:app/config/config.dart';
+import 'package:app/request/api/common_api.dart';
+import 'package:app/request/dto/common/qiu_token_dto.dart';
+import 'package:crypto/crypto.dart';
+import 'package:dio/dio.dart';
+import 'package:flutter_easyloading/flutter_easyloading.dart';
+
+class QinUpload {
+  ///获取七牛token
+  static Future<QiuTokenDto> _getQiuToken(File file, String path) async {
+    // 读取文件的字节数据
+    final fileBytes = await file.readAsBytes();
+    String fileMd5 = md5.convert(fileBytes).toString();
+    //前缀
+    var prefix = Config.getEnv() == "dev" ? "test" : "release";
+    var suffix = file.path.split(".").last;
+
+    var res = await getQiuTokenApi(
+      "xueguang/$prefix/$path/$fileMd5.$suffix",
+    );
+    return res;
+  }
+
+  ///上传文件
+  /// - [file] 文件
+  /// - [path] 目标目录
+  static Future<String?> upload({
+    required File file,
+    required String path,
+  }) async {
+    var qiuToken = await _getQiuToken(file, path);
+    //数据
+    FormData formData = FormData.fromMap({
+      "file": await MultipartFile.fromFile(file.path),
+      "token": qiuToken.upToken,
+      "fname": qiuToken.fileKey,
+      "key": qiuToken.fileKey,
+    });
+    try {
+      Dio dio = Dio();
+      Response response = await dio.post(
+        qiuToken.uploadUrl!,
+        data: formData,
+        onSendProgress: (int sent, int total) {},
+      );
+      String key = response.data['key'];
+      return "https://${qiuToken.domain}/$key";
+    } catch (e) {
+      EasyLoading.showError("上传失败");
+      return null;
+    }
+  }
+}