初步下载文件

lib/apis/library.dart

@@ -229,8 +229,8 @@ abstract class LibraryAPI {
     return false;
   }
 
-  /// 11、离线下载
-  static Future <BookDownloadModel> bookDownload({
+  /// 11、获取离线书籍下载地址 和 秘钥串
+  static Future <BookDownloadModel> getbookDownloadParam({
     required String bookId,
   }) async {
     final result = await HttpService.to.post(
@@ -243,7 +243,16 @@ abstract class LibraryAPI {
     return BookDownloadModel.fromJson(result.data);
   }
 
-  /// 12、离线重连 上传笔记、高亮、划线
+  /// 12、根据书籍地址下载书籍
+  static Future <void> downBookByUrl({
+    required String url,
+    required String savePath,
+    ProgressCallback? onReceiveProgress,
+  }) async {
+    await HttpService.to.download(url, savePath: savePath,onReceiveProgress: onReceiveProgress);
+  }
+
+  /// 13、离线重连 上传笔记、高亮、划线
   static Future <bool> uploadContent({
     required String bookId,
     required String readTypes
@@ -260,7 +269,7 @@ abstract class LibraryAPI {
     return false;
   }
 
-  /// 13、添加笔记、高亮、划线的内容
+  /// 14、添加笔记、高亮、划线的内容
   static Future <bool> addNote({
     required String bookId,
     required String chapterId,

lib/pages/read_web/controller.dart

@@ -304,6 +304,26 @@ class ReadController extends FullLifeCycleController with GetSingleTickerProvide
   void _addReadTime({required type}) async{
     final result = await LibraryAPI.addReadTime(bookId: bookId, readTypes: type);
   }
+  /// 获取离线文件路径
+  void getBookDown() async{
+    final result = await LibraryAPI.getbookDownloadParam(bookId: bookId);
+    Console.log('----------_getBookDown------------------${result.download}');
+
+    final String savePath = await _getDocumentsDirectory();
+    LibraryAPI.downBookByUrl(url: result.download!,savePath: '$savePath$bookId.zip',onReceiveProgress: (int received,int total){
+      if (total !=-1){
+        double progress = (received / total) * 100;
+        Console.log('Download progress: $progress%');
+      }
+    });
+
+  }
+
+  //获取存储目录
+  Future<String> _getDocumentsDirectory() async {
+    final directory = await getApplicationDocumentsDirectory();
+    return directory.path;
+  }
 
   ///------------------------------------------ app 生命周期--------------------------------------------------------
 

lib/pages/read_web/index.dart

@@ -12,6 +12,7 @@ import 'package:flutter_book/utils/index.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:get/get.dart';
 import 'package:go_router/go_router.dart';
+import 'package:path_provider/path_provider.dart';
 
 import '../../apis/index.dart';
 import '../../models/index.dart';

lib/pages/read_web/view.dart

@@ -32,7 +32,7 @@ class _ReadPageState extends State<ReadPage> {
           actions: [
             GestureDetector(
                 onTap: () {
-
+                  readController.getBookDown();
                 },
                 child:  Text(
                   '离线阅读',

lib/services/http.dart

@@ -146,6 +146,7 @@ class HttpService extends GetxService {
     try{
       final requestOptions = options ?? Options();
       requestOptions.headers = _getHeaders(excludeToken: excludeToken,url: url);
+      requestOptions.responseType = ResponseType.bytes;
       await _dio.download(
           url,
           savePath,
@@ -153,9 +154,10 @@ class HttpService extends GetxService {
           cancelToken: cancelToken,
           onReceiveProgress: onReceiveProgress
       );
+
       Console.log('Download completed:$savePath');
     }catch(e){
-       Console.log(e);
+       Console.log('Error during download: $e');
        rethrow;
     }
   }
@@ -167,18 +169,36 @@ class HttpService extends GetxService {
 class _RequestInterceptor extends Interceptor {
   @override
   void onResponse(Response response, ResponseInterceptorHandler handler) async {
-    if (response.data['code'] != 200) {
-      handler.reject(
-        DioException(
-          requestOptions: response.requestOptions,
-          response: response,
-          type: DioExceptionType.badResponse,
-        ),
-        true,
-      );
-    }else {
-      super.onResponse(response, handler);
+    final responseData = response.data;
+    if (responseData is Map && responseData.containsKey('code')) {
+      final code = responseData['code'];
+      if (code != 200) {
+        handler.reject(
+          DioException(
+            requestOptions: response.requestOptions,
+            response: response,
+            type: DioExceptionType.badResponse,
+          ),
+          true,
+        );
+        return;
+      }
+    } else if (response.requestOptions.responseType == ResponseType.bytes) {
+
     }
+    super.onResponse(response, handler);
+    // if (response.data['code'] != 200) {
+    //   handler.reject(
+    //     DioException(
+    //       requestOptions: response.requestOptions,
+    //       response: response,
+    //       type: DioExceptionType.badResponse,
+    //     ),
+    //     true,
+    //   );
+    // }else {
+    //   super.onResponse(response, handler);
+    // }
   }
 
   @override