关于JSON二维数组转换不成功问题，求教！！！?报错

是这样的，今天尝试二维JSON数组传入，用阿里FastJson转换两次获取值，可是报错，直接上代码，大家帮帮忙看看有什么问题

public static void main(String[] args) throws Exception {
        String jsonData = "[{tableName: 1,domainName: 2,description: 3,pkDataType: 4}]";
        text(jsonData);
        
    }

    public static void text(String jsonData){
        String tableName = null, domainName = null, description = null, pkDataType = null;
        JSONArray array = JSONArray.parseArray(jsonData);
        for (int i = 0; i< array.size(); i++) {
            JSONArray arr = array.getJSONArray(i);
            for (int j = 0; j < arr.size(); j++) {
                JSONObject object = arr.getJSONObject(j);

                tableName = object.getString("tableName");
                domainName = object.getString("domainName");
                description = object.getString("description");
                pkDataType = object.getString("pkDataType");
                
            }
            System.out.println("tableName = " + tableName);
            System.out.println("domainName = " + domainName);
            System.out.println("description = " + description);
            System.out.println("pkDataType = " + pkDataType);
        }
    }

报错是在 JSONArray arr = array.getJSONArray(i);  这句话