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昨天关门了。
改进这个问题
这是我收到的错误图像[下面是我认为错误的代码][2]
这就是我得到的错误

public void loadCrewData(Path p) throws DataLoadingException {
        // TODO Auto-generated method stub
        try {
            String pathString = p.toString();
            Scanner scanner = new Scanner( new File(pathString) );
            String jsonString = scanner.useDelimiter("\\A").next();
            scanner.close();
            //System.out.println("jsonString =" + jsonString);
            JSONObject pilotObj = new JSONObject();
            JSONObject crewObj = new JSONObject();

            JSONObject jsonObject = new JSONObject(jsonString);

            JSONArray jsonArray= jsonObject.getJSONArray("pilots");
            System.out.println("############# Pilots #################"); 
            for (int j=0; j<jsonArray.length();j++)
            {
            System.out.println("-------------------------");
            pilotObj =jsonArray.getJSONObject(j);
            Pilot p1 = new Pilot();
            String forename = (String) pilotObj.get("forename");
            System.out.println("Forename : "+forename);

            String surname = (String) pilotObj.get("surname");
            System.out.println("Surname: "+surname); 

            String rank = (String) pilotObj.get("rank");
            System.out.println("Rank: "+rank); 

            String home_airport = (String) pilotObj.get("home_airport");
            System.out.println("Home_airport: "+home_airport); 

            JSONArray obj.getJSONArray("pilots");
            for (int i=0; i<type_ratings.length();i++);
            {
            System.out.println("Type_ratings: "+type_ratings.get(i));
            }
            p1.setForename(forename);
            p1.setSurname(surname);
            Rank rank2 = (JSONObject)pilot.get(j);
            String rank1 = Rank.String("rank");
            p1.setRank(rank2);
            pilot.add(p1);
            crew.add(p1);
        }