Java - 将 JSON 字符串数组解析为字符串数组

Question

[
    {
        "locations": {
            "description": "You look around the room and see you are in an empty room with 2 doors to the left and to the right. Knowing not how you got there, you decide to figure out how to escape and get back to your normal life.",
            "name": "start",
            "objects": [ "" ],
            "directions": [{"right":"empty room1"}, {"left":"dungeon"}]
        }
    },
    {
        "locations": {
            "description": "Inside this room it looks like some sort of dungeon with a cage in the middle and blood lining the wall and floor.",
            "name": "dungeon",
            "objects": [ "map", "torch" ],
            "directions": [{"up":"hallway2"}, {"down":"hallway1"}, {"right":"start"}]
        }
    }
]

上面是我正在使用 Java 制作的基于文本的游戏的 JSON 文件片段。我能够彻底解析另一个文件，该文件在每个位置(对象和方向)都没有另一个数组，但是这个文件确实有一个数组，我陷入了困境。我需要将对象添加到字符串数组中，并将方向放入 map 中。下面是我用来解析它并将其添加到类对象数组中的代码!我知道我尝试将它们添加到字符串数组中的方式是完全错误的，但我将其保留，因此希望它能更好地理解我想要做什么。感谢您提前提供的任何帮助!

JSONParser jsonParser2 = new JSONParser();

        try (FileReader reader = new FileReader("Locations.json")) {
            //Read JSON file
            Object obj = jsonParser2.parse(reader);

            JSONArray locationsList = (JSONArray) obj;
            System.out.println(locationsList);

            //Iterate over locations array
            locationsList.forEach(emp -> parseJSONLocations((JSONObject) emp, locations));
        } catch (FileNotFoundException e) {
            System.out.println(e);
        } catch (IOException | ParseException e) {
            System.out.println(e);
        }

private static void parseJSONLocations(JSONObject locations, Locations[] location) {
        //Get locations object within list
        JSONObject locationObject = (JSONObject) locations.get("locations");

        //Get location description
        String desc = (String) locationObject.get("description");
        System.out.println(desc);

        //Get location name
        String name = (String) locationObject.get("name");
        System.out.println(name);

        //Get location objects
        String[] objects = (String[]) locationObject.get("objects");
        for (String o : objects) {
            System.out.println(o);
        }

        //get location directions (direction : location)
        Map<String, String> directions = (Map<String, String>) locationObject.get("directions");
        for (String key : directions.keySet()) {
            String value = directions.get(key);
            System.out.println(key + "    " + value);
        }
        //location[index] = new Locations(desc, name, objects, directions);
        index++;
    }

Answer 1

我不确定您使用哪个库进行 json 映射，但我可以给您一些建议，这可能会有所帮助:

• 映射时 objects属性尝试将其映射到 List<String>而不是String[]
• 改变directions属性可能有助于将其映射到 Map 对象:

尝试更改此设置:"directions": [{"right":"empty room1"}, {"left":"dungeon"}]

对此:"directions": {"right":"empty room1", "left":"dungeon"}