支持flutter调用

lib/base/webserver/impl/ShelfWebServer.dart

@@ -187,7 +187,7 @@ class ShelfWebServer implements WebServer {
             // print("method: ${m.reflectee.method} $p");
             //把地址加入路由
 
-            addRouter(m.reflectee.method, p, (req, [a, b, c, d, e, f]) {
+            addRouter(m.reflectee.method, p, (req, [a, b, c, d, e, f]) async {
               //从request中获取token并解码传入
               String? token = req.headers["token"];
               dynamic payload;
@@ -205,7 +205,19 @@ class ShelfWebServer implements WebServer {
               } else {
                 args = [req];
               }
-              return im.invoke(v.simpleName, args).reflectee;
+              Response response = await im.invoke(v.simpleName, args).reflectee as Response;
+              //判断contenttype是否定义
+              var t = response.headers["content-type"];
+
+              if (t == null) {
+                //设置默认contenttype
+                response = response.change(headers: {
+                  ...response.headers,
+                  "content-type": m.reflectee.responseType.type
+                });
+              }
+
+              return response;
             });
           }
         }