Mock服务搭建——mongo的连接

一、安装 mongodb

1.install 之前，iTerm2 下用 brew 查看已安装软件、搜索 mongodb：

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brew list

brew search mongodb

2.安装 mongodb :

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brew install mongodb

此处需要稍等一段时间，成功后会输出以下即说明安装成功：

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$ brew install mongodb

Updating Homebrew...

==> Downloading https://homebrew.bintray.com/bottles/mongodb-3.4.0.sierra.bottle.1.tar.gz

######################################################################## 100.0%

==> Pouring mongodb-3.4.0.sierra.bottle.1.tar.gz

==> Caveats

To have launchd start mongodb now and restart at login:

 brew services start mongodb

Or, if you don't want/need a background service you can just run:

 mongod --config /usr/local/etc/mongod.conf

==> Summary

? /usr/local/Cellar/mongodb/3.4.0: 17 files, 261.4M

3.启动 mongodb

新建一个 iTerm2 窗口，执行 mongod尝试启动 mongodb 但会失败 exiting：

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$ mongod

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] MongoDB starting : pid=1765 port=27017 dbpath=/data/db 64-bit host=MacBook-Pro-2.local

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] db version v3.4.0

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] git version: f4240c60f005be757399042dc12f6addbc3170c1

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2j 26 Sep 2016

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] allocator: system

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] modules: none

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] build environment:

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] distarch: x86_64

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] target_arch: x86_64

2017-06-12T15:51:49.810+0800 I CONTROL [initandlisten] options: {}

2017-06-12T15:51:49.811+0800 I STORAGE [initandlisten] exception in initAndListen: 29 Data directory /data/db not found., terminating

2017-06-12T15:51:49.811+0800 I NETWORK [initandlisten] shutdown: going to close listening sockets...

2017-06-12T15:51:49.811+0800 I NETWORK [initandlisten] shutdown: going to flush diaglog...

2017-06-12T15:51:49.811+0800 I CONTROL [initandlisten] now exiting

2017-06-12T15:51:49.811+0800 I CONTROL [initandlisten] shutting down with code:100

4.启动 mongodb 之前，要先新建一个mongodb默认的数据写入目录：

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$ mkdir -p /data/db

mkdir: /data/db: Permission denied (没有权限拒绝访问)

 

// sudo 并输入密码，重新新建目录

$ sudo mkdir -p /data/db

Password:

给刚才新建的数据库目录赋予权限：

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$ sudo chown -R guojc /data

5.此时，执行 mongod启动 mongodb 服务：

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$ mongod

2017-06-12T16:00:48.036+0800 I CONTROL [initandlisten] MongoDB starting : pid=1837 port=27017 dbpath=/data/db 64-bit host=MacBook-Pro-2.local

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] db version v3.4.0

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] git version: f4240c60f005be757399042dc12f6addbc3170c1

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2j 26 Sep 2016

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] allocator: system

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] modules: none

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] build environment:

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] distarch: x86_64

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] target_arch: x86_64

2017-06-12T16:00:48.037+0800 I CONTROL [initandlisten] options: {}

2017-06-12T16:00:48.037+0800 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=3584M,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),

2017-06-12T16:00:48.616+0800 I CONTROL [initandlisten]

2017-06-12T16:00:48.616+0800 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.

2017-06-12T16:00:48.616+0800 I CONTROL [initandlisten] **  Read and write access to data and configuration is unrestricted.

2017-06-12T16:00:48.616+0800 I CONTROL [initandlisten]

2017-06-12T16:00:48.665+0800 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory '/data/db/diagnostic.data'

2017-06-12T16:00:48.741+0800 I INDEX [initandlisten] build index on: admin.system.version properties: { v: 2, key: { version: 1 }, name: "incompatible_with_version_32", ns: "admin.system.version" }

2017-06-12T16:00:48.741+0800 I INDEX [initandlisten] building index using bulk method; build may temporarily use up to 500 megabytes of RAM

2017-06-12T16:00:48.755+0800 I INDEX [initandlisten] build index done. scanned 0 total records. 0 secs

2017-06-12T16:00:48.756+0800 I COMMAND [initandlisten] setting featureCompatibilityVersion to 3.4

2017-06-12T16:00:48.756+0800 I NETWORK [thread1] waiting for connections on port 27017

mongodb 启动成功，正等待着被连接。

二、连接mongo

1.新建 iTerm2 窗口，执行 mongo，进入 mongodb 命令行模式：

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$ mongo

MongoDB shell version v3.4.0

connecting to: mongodb://127.0.0.1:27017

MongoDB server version: 3.4.0

Welcome to the MongoDB shell.

For interactive help, type "help".

For more comprehensive documentation, see

 http://docs.mongodb.org/

Questions? Try the support group

 http://groups.google.com/group/mongodb-user

Server has startup warnings:

2017-06-12T16:00:48.616+0800 I CONTROL [initandlisten]

2017-06-12T16:00:48.616+0800 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.

2017-06-12T16:00:48.616+0800 I CONTROL [initandlisten] **  Read and write access to data and configuration is unrestricted.

2017-06-12T16:00:48.616+0800 I CONTROL [initandlisten]

>

2.继续在上面的终端输入 show dbs,会列出系统自带的2个数据库：

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> show dbs

admin 0.000GB

local 0.000GB

help

3.小结一下，往后要重新启动 mongodb 服务、进入 mongodb 命令行的操作：

在一个iTerm2窗口执行：mongod //MongoDB starting........waiting for connections

另一个iTerm2窗口执行：mongo //MongoDB shell

4.插入数据

首先，在电脑根目录下安装 node 的数据驱动库：

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# guojc @ MacBook-Pro-2 in ~ [16:29:33] C:127

$ cnpm install mongodb

新建目录并编辑text.js文件: s3_mongodb/test.js:

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var MongoClient = require('mongodb').MongoClient;

// 连接数据库

var url_test = 'mongodb://localhost:27017/test'; //数据库test本不存在，连接时会自动创建

 

var insertData = function(db){

 // 往test数据库里新建一个site集合，并插入一条数据

 db.collection('site').insertOne({name: 'guojc', age: 99, hobby: 'movie'}, function(err, result){

 console.log('inserted successly');

 console.log(result);

 db.close();

 console.log('close');

 });

}

 

MongoClient.connect(url_test, function(err, db) {

 console.log('Connected successly to server.');

 insertData(db);

});

新建 iTerm2 窗口，运行 test.js：

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node test.js

成功后，来到之前执行过 mongo的 MongoDB shell 窗口，执行：

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> show dbs

admin 0.000GB

local 0.000GB

test 0.000GB

help

继续执行：选中数据库test、显示test中的表，查询该表的所有数据：

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> use test

switched to db test

 

> show tables

site

 

> db.site.find()

{ "_id" : ObjectId("593e594ab4727b09349c33a6"), "name" : "guojc", "age" : 99, "hobby" : "movie" }

至此，mongodb的安装配置与基本启动就介绍完了。

相关源码下载：

github地址：https://github.com/gjincai/vue-node-proj/blob/master/s3_Mongodb/test.js

版权声明：本文为Michaeles原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。