windows安装MongoDB副本集，通过Java程序实现数据的插入与查询

2023-08-03 13:22:34

我本地的环境

MongoDB 4.0

jdk 1.7.x

安装参考主要博客

https://blog.csdn.net/wanght89/article/details/77677271#commentBox（记得安装完对解压包做个备份）

按照该网址安装过程中，遇到一些问题的解决方法：

多了一个"g",应为

config_set={"_id":"mySet",members:[{_id:,host:"127.0.0.1:27111"},{_id:,host:"127.0.0.1:27112"},{_id:,host:"127.0.0.1:27113"}]}

2.启动MongoDB的时候，要进入相应的bin目录

mongod -port  -dbpath D:\MongoDB\matserdb -logpath D:\MongoDB\matserlog\mongod.log -replSet mySet -logappend

mongod -port  -dbpath D:\MongoDB\slavedb -logpath D:\MongoDB\slavelog\mongod.log -replSet mySet -logappend

mongod -port  -dbpath D:\MongoDB\arbiterdb -logpath D:\MongoDB\arbiterlog\mongod.log -replSet mySet -logappend

3.设置仲裁节点

rs.addArb("192.168.32.138:27017")

或者

rs.add("host:port",{arbiterOnly:true})

4.默认情况下SECONDARY节点不能读写，要设置slaveOK为true才行

db.getMongo().setSlaveOk()

或

rs.slaveOk()

5.停止MongoDB服务

db.shutdownServer()

7.如果某一个节点不能启动了，删除db下的所有文件以及文件夹，将备份中的data中的所有复制到刚删除的db中，重启即可成功

8.插入测试数据

db.say.insert({"text":"hello world"});

9.创建用户名、密码

mongo --port 

use admin

db.createUser(

{

user: "adminUser",

pwd: "adminPass",

roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]

}

)

10.Java代码

package com.alibaba.fescar.dubbo;

import java.util.ArrayList;

import java.util.List;

import com.mongodb.BasicDBObject;

import com.mongodb.DB;

import com.mongodb.DBCollection;

import com.mongodb.DBObject;

import com.mongodb.MongoClient;

import com.mongodb.ServerAddress;

public class ReplSetTest {

    public static void main(String[] args) {

        try {

            List<ServerAddress> addresses = new ArrayList<ServerAddress>();

            ServerAddress address1 = new ServerAddress("127.0.0.1", );

            ServerAddress address2 = new ServerAddress("127.0.0.1", );

            ServerAddress address3 = new ServerAddress("127.0.0.1", );

            addresses.add(address1);

            addresses.add(address2);

            addresses.add(address3);

            MongoClient client = new MongoClient(addresses);

            DB db = client.getDB( "test" );

            DBCollection coll = db.getCollection("say");

            BasicDBObject object = new BasicDBObject();

            object.append( "name" , "user28");

            DBObject dbObject = coll.findOne(object);

            BasicDBObject obj = new BasicDBObject();

            obj.put("name", "");

            obj.put("age", );

            obj.put("sex", );

            coll.insert(obj);

            System.out .println(dbObject);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}

pom.xml

    <dependency>

        <groupId>org.springframework.data</groupId>

        <artifactId>spring-data-mongodb</artifactId>

        <version>1.10..RELEASE</version>

    </dependency>

    <dependency>

        <groupId>org.mongodb</groupId>

        <artifactId>mongo-java-driver</artifactId>

        <version>3.2.</version>

    </dependency>

数据库显示

参考的网址：

http://www.cnblogs.com/ivictor/p/6795418.html

https://blog.csdn.net/a463620704/article/details/83790566

https://blog.csdn.net/wanght89/article/details/77677271#commentBox

https://blog.csdn.net/fuck487/article/details/78287362

https://blog.csdn.net/com_it/article/details/84702046

https://blog.csdn.net/yisun123456/article/details/79161279

https://blog.csdn.net/sunbocong/article/details/78642947

https://blog.csdn.net/dickysun1987/article/details/81077421

https://blog.csdn.net/com_it/article/details/84702046

https://blog.csdn.net/q36835109/article/details/78831598/

https://blog.csdn.net/caofeiliju/article/details/80194815

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