mongodb java 连接和简单查询

package cy.mongo;
import java.util.List;
import com.alibaba.fastjson.JSON;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.Mongo;
import com.mongodb.MongoOptions;
public class Test1 {
    public static void main(String[] args) {
        String uri = "192.168.1.205";
        try{
            Mongo mongo = new Mongo(uri,27017);
            MongoOptions options = mongo.getMongoOptions();
            options.autoConnectRetry = true;
            options.maxWaitTime = 5000;
            options.socketTimeout = 2000;
            options.connectTimeout = 15000;
            options.threadsAllowedToBlockForConnectionMultiplier = 5000;
            
            String dbName = "klog";
            String username = "";
            String password = "";
            
            DB db = mongo.getDB(dbName);
            if (!db.isAuthenticated()) {
                db.authenticate(username, password.toCharArray());
            }
            
            DBCollection dbc = db.getCollection("KLogs");
            
            BasicDBObject query = new BasicDBObject(); 
            query.put("operatorId", 5057);
            query.put("businessParam.objId", 192);
            
            //查询第0~10条数据
            DBCursor cur = dbc.find(query).skip(0).limit(10);
            
            List<DBObject> list = cur.toArray();
            
            System.out.println(JSON.toJSON(list));
            
        }catch(Exception e){
            e.printStackTrace();
        }
    
    }
}

数据结构

{
  "_id" : ObjectId("53a293fce4b011ddffdc04ab"),
  "orgId" : 1000999,
  "platform" : "",
  "operatorType" : 1,
  "createTime" : NumberLong("1403163645628"),
  "businessName" : "优惠",
  "operatorId" : 5057,
  "sessionId" : "",
  "businessNo" : 1109,
  "operationTime" : NumberLong("1403163538000"),
  "businessParam" : {
    "objId" : 1000399,
    "objType" : 102
  },
  "businessStatus" : 1
}