Java中mongodb使用and和or的复合查询

 在MongoDB的JAVA查询中对应这些问题

and查询

 //条件 startsAt< curr  and endsAt > curr
long curr = new Date().getTime()/1000;
        DBObject query = new BasicDBObject();
        query.put("startsAt",new BasicDBObject("$lte", curr));
        query.put("endsAt",new BasicDBObject("$gte", curr));

　　or 查询

 //条件是startsAt < curr or endsAt>curr
 BasicDBObject autoEnd = new BasicDBObject();
         BasicDBList condList = new BasicDBList();
          condList.add(new BasicDBObject("startsAt", new BasicDBObject("$lte", curr)));
          condList.add(new BasicDBObject("endsAt", new BasicDBObject("$gte", curr)));
        autoEnd.put("$or",condList);

 这是复合查询

 //条件类似：project="H" and (startsAt<curr or endsAt>curr)
     
   BasicDBObject basicDBObject = new BasicDBObject();

        BasicDBList endList = new BasicDBList();
        BasicDBObject forceEnd = new BasicDBObject();
        forceEnd.put("project","H");

        BasicDBObject autoEnd = new BasicDBObject();
        BasicDBList condList = new BasicDBList();
        condList.add(new BasicDBObject("startsAt", new BasicDBObject("$lte", curr)));
        condList.add(new BasicDBObject("endsAt", new BasicDBObject("$gte", curr)));
        autoEnd.put("$or",condList);

        endList.add(forceEnd);
        endList.add(autoEnd);

        basicDBObject.put("$and",endList);

        DBCursor cursor = mongoTemplate.getCollection("数据库表名").find(basicDBObject);