升级Flutter 3.0

example/lib/api/weibo_api.dart

@@ -0,0 +1,52 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:weibo_kit_example/api/model/weibo_api_resp.dart';
+
+class WeiboApi {
+  const WeiboApi._();
+
+  /// 用户信息
+  static Future<WeiboUserInfoResp> getUserInfo({
+    required String appkey,
+    required String userId,
+    required String accessToken,
+  }) {
+    final Map<String, String> params = <String, String>{
+      'uid': userId,
+    };
+    return HttpClient()
+        .getUrl(_encodeUrl('https://api.weibo.com/2/users/show.json', appkey,
+            accessToken, params))
+        .then((HttpClientRequest request) {
+      return request.close();
+    }).then((HttpClientResponse response) async {
+      if (response.statusCode == HttpStatus.ok) {
+        final String content = await utf8.decodeStream(response);
+        return WeiboUserInfoResp.fromJson(
+            json.decode(content) as Map<String, dynamic>);
+      }
+      throw HttpException(
+          'HttpResponse statusCode: ${response.statusCode}, reasonPhrase: ${response.reasonPhrase}.');
+    });
+  }
+
+  static Uri _encodeUrl(
+    String baseUrl,
+    String appkey,
+    String accessToken,
+    Map<String, String> params,
+  ) {
+    params['source'] = appkey;
+    params['access_token'] = accessToken;
+    final Uri baseUri = Uri.parse(baseUrl);
+    final Map<String, List<String>> queryParametersAll =
+        Map<String, List<String>>.of(baseUri.queryParametersAll);
+    for (final MapEntry<String, String> entry in params.entries) {
+      queryParametersAll.remove(entry.key);
+      queryParametersAll.putIfAbsent(entry.key, () => <String>[entry.value]);
+    }
+    return baseUri.replace(queryParameters: queryParametersAll);
+  }
+}