投稿功能

lib/utils/http/http_client.dart

@@ -49,7 +49,7 @@ class HttpClient {
     );
   }
 
-  /// POST请求
+  /// POST请求 - JSON格式
   static Future<HttpResponse> post(
     String path, {
     Map<String, dynamic>? data,
@@ -65,7 +65,23 @@ class HttpClient {
     );
   }
 
-  /// 通用请求方法
+  /// POST请求 - FormData格式
+  static Future<HttpResponse> postForm(
+    String path, {
+    Map<String, dynamic>? data,
+    Map<String, String>? headers,
+    Duration? timeout,
+  }) async {
+    return _requestForm(
+      'POST',
+      path,
+      data: data,
+      headers: headers,
+      timeout: timeout,
+    );
+  }
+
+  /// 通用请求方法 - JSON格式
   static Future<HttpResponse> _request(
     String method,
     String path, {
@@ -147,6 +163,90 @@ class HttpClient {
       throw HttpException('请求失败：$e');
     }
   }
+
+  /// FormData格式请求方法
+  static Future<HttpResponse> _requestForm(
+    String method,
+    String path, {
+    Map<String, dynamic>? queryParameters,
+    Map<String, dynamic>? data,
+    Map<String, String>? headers,
+    Duration? timeout,
+  }) async {
+    try {
+      final url = '$_baseUrl$path';
+      _debugLog('FormData请求 $method $url');
+      if (queryParameters != null) {
+        _debugLog('查询参数: $queryParameters');
+      }
+      if (data != null) {
+        _debugLog('表单数据: $data');
+      }
+
+      final formData = FormData.fromMap(data ?? {});
+
+      final options = Options(
+        method: method,
+        headers: headers != null
+            ? {..._options.headers!, ...headers}
+            : _options.headers,
+      );
+
+      options.headers?['Content-Type'] = 'multipart/form-data';
+
+      if (timeout != null) {
+        options.connectTimeout = timeout;
+        options.receiveTimeout = timeout;
+        options.sendTimeout = timeout;
+      }
+
+      Response response;
+
+      if (method.toUpperCase() == 'POST') {
+        response = await _dio.post(
+          url,
+          data: formData,
+          queryParameters: queryParameters,
+          options: options,
+        );
+      } else {
+        throw UnsupportedError('FormData only supports POST method');
+      }
+
+      _debugLog('响应状态: ${response.statusCode}');
+      _debugLog('响应数据: ${response.data}');
+
+      return HttpResponse(
+        statusCode: response.statusCode ?? 0,
+        body: response.data is String
+            ? response.data
+            : json.encode(response.data),
+        headers: response.headers.map.cast<String, String>(),
+      );
+    } on DioException catch (e) {
+      _debugLog('Dio异常: ${e.type} - ${e.message}');
+      String message;
+      switch (e.type) {
+        case DioExceptionType.connectionTimeout:
+        case DioExceptionType.sendTimeout:
+        case DioExceptionType.receiveTimeout:
+          message = '请求超时，请检查网络连接';
+          break;
+        case DioExceptionType.connectionError:
+          message = '网络连接失败，请检查网络设置';
+          break;
+        case DioExceptionType.badResponse:
+          message = '服务器错误: ${e.response?.statusCode} - ${e.response?.data}';
+          break;
+        default:
+          message = '请求失败: ${e.message}';
+      }
+      throw HttpException(message);
+    } catch (e) {
+      _debugLog('未知异常: $e');
+      throw HttpException('请求失败：$e');
+    }
+  }
 }
 
 /// HTTP响应类