使用Java从mongodb检索数组值

我有以下代码：

DBCollection collsc = db.getCollection("StudentCourses") ;
BasicDBObject querysc = new BasicDBObject("StudentID",id ); 
DBCursor curssc = collsc.find(querysc);

while(curssc.hasNext()) {

    DBObject e = curssc.next();
    System.out.println("You are currently registered for the following modules: ") ; 
    System.out.println(e.get("CoursesRegistered")) ; 

}

输出：

You are currently registered for the following modules: 
[ "DigitalLogic" "OperatingSystems","FundamentalsCSE"]

但是,我只希望从数组返回值,即DigitalLogic,OperatingSystems和FundamentalsCSE.我将使用这些值来填充一个JList.请帮助？

解决方法

BasicDBList e = (BasicDBList) curssc.next().get("CoursesRegistered");

代替

DBObject e = curssc.next();

然后从e.getIndex(index)获取值;

（编辑：安卓应用网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!