feat: mysql2 and typeorm test

Author: QuarkGluonPlasma

README.md

@@ -38,3 +38,7 @@
 
 [Nest 项目如何构建 docker 镜像](./nest-dockerfile)
 
+[通过 mysql2 操作 mysql](./mysql2-test)
+
+[通过 typeorm 操作 mysql](./typeorm-test)
+

mysql2-test/README.md

@@ -0,0 +1,5 @@
+# mysql2 test
+
+npm install 
+
+node index.js

mysql2-test/index.js

@@ -0,0 +1,45 @@
+const mysql = require('mysql2');
+
+const connection = mysql.createConnection({
+  host: 'localhost',
+  port: 3306,
+  user: 'root',
+  password: 'guang',
+  database: 'practice'
+});
+
+// connection.query(
+//   'SELECT * FROM customers',
+//   function(err, results, fields) {
+//     console.log(results);
+//     console.log(fields.map(item => item.name)); 
+//   }
+// );
+
+// connection.query(
+//     'SELECT * FROM customers WHERE name LIKE ?',
+//     ['李%'],
+//     function(err, results, fields) {
+//         console.log(results);
+//         console.log(fields.map(item => item.name)); 
+//     }
+// );
+
+// connection.execute('INSERT INTO customers (name) VALUES (?)',
+//     ['光'],
+// (err, results, fields) => {
+//     console.log(err);
+// });
+
+// connection.execute('UPDATE customers SET name="guang" where name="光"',
+// (err) => {
+//     console.log(err);
+// });
+  
+
+// connection.execute('DELETE  FROM customers where name=?',
+// ['guang'],
+// (err) => {
+//     console.log(err);
+// }
+// );

mysql2-test/index2.js

@@ -0,0 +1,49 @@
+const mysql = require('mysql2/promise');
+
+
+(async function() {
+
+    const connection = await mysql.createConnection({
+        host: 'localhost',
+        port: 3306,
+        user: 'root',
+        password: 'guang',
+        database: 'practice'
+    });
+
+    const [results, fields] = await connection.query('SELECT * FROM customers');
+
+    console.log(results);
+    console.log(fields.map(item => item.name)); 
+
+})();
+
+
+
+// connection.query(
+//     'SELECT * FROM customers WHERE name LIKE ?',
+//     ['李%'],
+//     function(err, results, fields) {
+//         console.log(results);
+//         console.log(fields.map(item => item.name)); 
+//     }
+// );
+
+// connection.execute('INSERT INTO customers (name) VALUES (?)',
+//     ['光'],
+// (err, results, fields) => {
+//     console.log(err);
+// });
+
+// connection.execute('UPDATE customers SET name="guang" where name="光"',
+// (err) => {
+//     console.log(err);
+// });
+  
+
+// connection.execute('DELETE  FROM customers where name=?',
+// ['guang'],
+// (err) => {
+//     console.log(err);
+// }
+// );

mysql2-test/index3.js

@@ -0,0 +1,25 @@
+const mysql = require('mysql2/promise');
+
+(async function() {
+    const pool = mysql.createPool({
+        host: 'localhost',
+        user: 'root',
+        password: 'guang',
+        database: 'practice',
+        waitForConnections: true,
+        connectionLimit: 10,
+        maxIdle: 10, 
+        idleTimeout: 60000,
+        queueLimit: 0,
+        enableKeepAlive: true,
+        keepAliveInitialDelay: 0
+      });
+
+    // const [results] = await pool.query('select * from customers');
+    // console.log(results);
+
+    const connection = await pool.getConnection();
+
+    const [results] = await connection.query('select * from orders');
+    console.log(results);
+})();

mysql2-test/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "mysql2-test",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "mysql2": "^3.3.3"
+  }
+}

typeorm-mysql-test/.gitignore

@@ -0,0 +1,6 @@
+.idea/
+.vscode/
+node_modules/
+build/
+tmp/
+temp/

typeorm-mysql-test/README.md

@@ -0,0 +1,7 @@
+# typeorm test
+
+npm install
+
+修改用户名密码和连接的数据库
+
+npm run start

typeorm-mysql-test/package.json

@@ -0,0 +1,21 @@
+{
+   "name": "typeorm-mysql-test",
+   "version": "0.0.1",
+   "description": "Awesome project developed with TypeORM.",
+   "type": "commonjs",
+   "devDependencies": {
+      "@types/node": "^16.11.10",
+      "ts-node": "10.7.0",
+      "typescript": "4.5.2"
+   },
+   "dependencies": {
+      "mysql": "^2.14.1",
+      "mysql2": "^3.3.3",
+      "reflect-metadata": "^0.1.13",
+      "typeorm": "0.3.16"
+   },
+   "scripts": {
+      "start": "ts-node src/index.ts",
+      "typeorm": "typeorm-ts-node-commonjs"
+   }
+}

typeorm-mysql-test/src/data-source.ts

@@ -0,0 +1,21 @@
+import "reflect-metadata"
+import { DataSource } from "typeorm"
+import { User } from "./entity/User"
+
+export const AppDataSource = new DataSource({
+    type: "mysql",
+    host: "localhost",
+    port: 3306,
+    username: "root",
+    password: "guang",
+    database: "practice",
+    synchronize: true,
+    logging: true,
+    entities: [User],
+    migrations: [],
+    subscribers: [],
+    connectorPackage: 'mysql2',
+    extra: {
+        authPlugin: 'sha256_password',
+    }
+})