java操作mongo的and，or, in操作

</pre><pre name="code" class="java">public static void main(String[] args) throws IOException {
MechineLog log = new MechineLog();

MongoTemplate mt = log.getMongoTemplate("");

DB db = log.getDb("", "mydb");
// DBCollection coll = db.getCollection("mytable2");
DBCollection coll = db.getCollection("log_20141107");
// DBCursor cursor = coll.find();
// List<DBObject> list = cursor.toArray();
//
// System.out.println(list);
// if (cursor.hasNext()) {
// DBObject dbObject = cursor.next();
// // for (String key : dbObject.keySet()) {
// // System.out.println(key + ": " + dbObject.get(key));
// // }
// Map<String, DeviceLog> map = dbObject.toMap();
// System.out.println(map);
// // }
List<DBObject> list = null;
// List<DBObject> list = coll.find(new BasicDBObject("name", "a"))
// .toArray();

// list = coll.find(null, new BasicDBObject("age", true), 0,
// 25).toArray();
// for (DBObject o : list) {
// System.out.println(o);
// }

in(coll);

 }

// in操作 age in(10,30)
private static void in(DBCollection coll) {
List<DBObject> list;
BasicDBObject query = new BasicDBObject();
BasicDBList values = new BasicDBList();
values.add(10);
values.add(30);
query.append("age", new BasicDBObject("$in", values));
list = coll.find(query).toArray();
for (DBObject o : list) {
System.out.println(o);
}
}

private static void multiOr(DBCollection coll) {
List<DBObject> list;
// 多个字段or操作 name='a' or age>30;
BasicDBObject query = new BasicDBObject();
BasicDBList values = new BasicDBList();
values.add(new BasicDBObject("name", "a"));
values.add(new BasicDBObject("age", new BasicDBObject("$gt", 30)));
query.put("$or", values);
list = coll.find(query).toArray();
for (DBObject o : list) {
System.out.println(o);
}
}

// 单个字段or操作 age<20 or age>=30
private static void singOr(DBCollection coll) {
List<DBObject> list;
BasicDBObject query = new BasicDBObject();
BasicDBList values = new BasicDBList();
values.add(new BasicDBObject("age", new BasicDBObject("$gte", 30)));
values.add(new BasicDBObject("age", new BasicDBObject("$lt", 20)));
query.put("$or", values);
list = coll.find(query).toArray();
for (DBObject o : list) {
System.out.println(o);
}
}

// 'and' operate
private static void and(DBCollection coll) {
List<DBObject> list;
BasicDBObject dbObject = new BasicDBObject();
dbObject.put("name", "a");
dbObject.put("age", new BasicDBObject("$gt", 10));
list = coll.find(dbObject).toArray();
for (DBObject o : list) {
System.out.println(o);
}
}