服务器发送的int类型，接收到的却是double类型，intdouble

private void personCenter(ReaderInfo info, Socket s) {
String stuNum = info.getReader_number();
// 读者学号
maps.put("stuNum", stuNum);
// 借阅数量
int count = process.countBorrowedBookNumber(stuNum);
maps.put("totalBorrow", count);
// 到期提醒
Map<String, Object> over = process.getFastlyExpiredBorrowedBook(info.getReader_number());
// 到期书籍加上快到期书籍
@SuppressWarnings("unchecked")
int overBook = ((List<String>) (over.get("over"))).size() + ((List<String>) (over.get("fast"))).size();
maps.put("overBook", overBook);
// 签到次数
int loginCount = process.getLoginCountByUser(stuNum);
maps.put("loginCount", loginCount);
// 收藏书单数量
int collection = process.countAllCollectionBookByStuNum(stuNum);
maps.put("collection", collection);
toJsonObject(maps, s);
}

new Thread(){
public void run() {
                                socket=SocketUtil.createSocket();
SocketUtil.toJsonObject(u, socket);
maps=SocketUtil.jsonObjToBean(ois);
                                int in=(int) maps.get("overBook");
                               System.out.println(in);
};
}.start();