MongoDB_Java连接mongo 使用Java多条件查询mongo数据

在mongo shell中的查询语句是这样的..

db.user.find({"age":{"$gt":5,"$lt":14}})

我们用Java连接mongo来实现.

mongo库中的数据

代码

package com.java.module.mongo.mongo_test_1;

import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.MongoClient;

/**
 * Java多条件查询mongo
 */
public class JavaManyConditionsQuery {

    public static void main(String[] args) {

        try {

            MongoClient mongoClient = new MongoClient("192.168.125.125", 27017);
            DB db = mongoClient.getDB("test");
            DBCollection dbCollection = db.getCollection("user");

            //将两个并联的查询条件放入一个里面.
            DBObject dbQuery = new BasicDBObject();
            dbQuery.put("$gt", 5);
            dbQuery.put("$lt", 14);

            DBObject query = new BasicDBObject("age",dbQuery);

            DBCursor dbCursor = dbCollection.find(query);

            while (dbCursor.hasNext()) {
                System.out.println(dbCursor.next());
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

}

查询结果