Node Mongdb初试 -向coll添加验证器-远程访问-node连接

文章目录

• ​​环境： ubuntu 20.04​​
• ​​远程连接 bindIp:0.0.0.0​​
• ​​开启访问控制 security.authorization=enabled​​
• ​​创建一个admin​​
• ​​创建一个数据库​​
• ​​向数据库中插入数据​​

• ​​插入一条​​
• ​​插入多条​​

• ​​NODE 连接 MONGODB​​
• ​​node-CURD-by-mongo​​

• ​​模式验证​​

• ​​创建集合时添加验证器 `validator`​​
• ​​向已有的集合添加验证器​​

环境： ubuntu 20.04

配置文件： /etc/mongod.conf

远程连接 bindIp:0.0.0.0

开启访问控制 security.authorization=enabled

security:
    authorization: enabled

​​开启访问控制文档​​

创建一个admin

use admin
db.createUser(
  {
    user: "myUserAdmin",
    pwd: "passwordPrompt",
//  pwd: passwordPrompt(),
    roles: [ { role: "userAdminAnyDatabase", db: "admin" }, "readWriteAnyDatabase" ]
  }
)

passwordPrompt的作用是自己键盘输入密码不用明文写
创建一个 root

db.createUser(
  {
      user:"root",
      pwd:"pwd",
      roles:["root"]
  }
)

创建一个数据库

​​use newDB​​ 没有就创建 有就切换

向数据库中插入数据

插入一条

use newDB // 指定哪个数据库中执行 db表示这个数据库
db.collName.insertOne({name:"hello"})

格式​​[数据库名].[集合名].insertOne({key:value})​​

集合相当于sql中的表
文档相当于sql中的元组

插入多条

db.collName.insertMany([
  {nickname:'b'},
  {nickname:'c'}
])

NODE 连接 MONGODB

const options = {
  username: "toolsBoxAdmin",
  password: "xxxx",
  host: "159.75.22.82",
  port: "27017",
  db_name: "toolsBox",
};
const dbUrl = `mongodb://${options.username}:${options.password}@${options.host}:${options.port}/${options.db_name}`;

const MongoClient = require("mongodb").MongoClient;

MongoClient.connect(dbUrl, function (err, db) {
  if (err) throw err;
  console.log("ok!");
  db.close();
});

OR
文档​​​https://www.npmjs.com/package/mongodb​​

const { MongoClient } = require("mongodb");

const options = {
  host: "159.75.22.82",
  port: "27017",
  db_name: "toolsBox",
};

const MongoClientConfig = {
  useUnifiedTopology: true,
  auth: {
    user: "xxxxxx",
    password: "xxxxx",
  },
};

const url = `mongodb://${options.host}:${options.port}/${options.db_name}`;

const client = new MongoClient(url, MongoClientConfig);

client.connect(async (err, client) => {
  if (err) return;
  console.log("OK!👏");
  const result = await client
    .db() //使用传入的库名 也可传参别的数据库名
    .collection("userProfile") // 选择表/集合
    .find() //全部数据
    .toArray(); //Promise
  // .findOne({ nickname: "a" })
  console.log("result:", result);
});

查找
nickname等于"c"的全部数据

.find({ nickname: { $eq: "c" } }

db.todoList.insert({"context":"123","status": false,"reminderTime":ISODate("2021-06-15T00:00:00Z")})

md告诉验证错误 不告诉哪个错了 这让写description干🐔

node-CURD-by-mongo

node 使用mongo

const result = await client.db().collection("todoList").insert({
      context: "sleep ",
      // reminderTime: ISODate("2021-06-14T20:00:00Z"),
      reminderTime: new Date(),
    });

mongo shell

db.todoList.insert({context:"shop ",reminderTime: ISODate("2021-06-14T20:00:00Z")})

​​模式验证​​

创建集合时添加验证器 ​​validator​​

db.createCollection("todoList", {
  validator: { $jsonSchema: {
     bsonType: "object",
     required: [ "content","reminderTime" ],
     properties: {
        content: {
           bsonType: "string",
           description: "must be a string and is required"
        },
        reminderTime: {
           bsonType : "date",
           description: "must be a Date and gt now"
        },
     }
  } },
  validationAction: "error"
} )

向已有的集合添加验证器

​​link​​

db.contacts.insert([
   { "_id": 1, "name": "Anne", "phone": "+1 555 123 456", "city": "London", "status": "Complete" },
   { "_id": 2, "name": "Ivan", "city": "Vancouver" }
])

发出以下命令以向contacts 集合添加验证器：

db.runCommand( {
   collMod: "contacts",
   validator: { $jsonSchema: {
      bsonType: "object",
      required: [ "phone", "name" ],
      properties: {
         phone: {
            bsonType: "string",
            description: "must be a string and is required"
         },
         name: {
            bsonType: "string",
            description: "must be a string and is required"
         }
      }
   } },
   validationLevel: "moderate"
} )