完成了主题逻辑

web/main.dart

@@ -1,42 +1,5 @@
-import 'dart:convert';
-import 'dart:html';
-
-import 'package:json2dart_serialization/generator.dart';
+import 'package:json2dart_serialization/json_generator.dart' as app;
 
 void main() {
-  TextAreaElement jsonInput = querySelector("#json");
-  jsonInput.onInput.listen((event) {
-    var string = jsonInput.value;
-    String pretty;
-    TextAreaElement result = querySelector("#result");
-    try {
-      pretty = formatJson(string);
-    } on Exception {
-      print("格式化错误");
-      result.value = "不是一个正确的json";
-      return;
-    }
-
-    var generator = Generator(string, 'test.dart');
-    var dartCode = generator.makeDartCode();
-
-    result.value = dartCode;
-  });
-
-  ButtonElement formatButton = querySelector("#format");
-  formatButton.onClick.listen((click) {
-    String pretty;
-    try {
-      pretty = formatJson(jsonInput.value);
-    } on Exception {
-      return;
-    }
-    jsonInput.value = pretty;
-  });
-}
-
-String formatJson(String jsonString) {
-  var map = json.decode(jsonString);
-  var prettyString = JsonEncoder.withIndent("  ").convert(map);
-  return prettyString;
+  app.main();
 }