nodejs环境使用Typeorm连接查询Oracle数据

{
 "compilerOptions": {
  "module": "commonjs",
  "noImplicitAny": true,
  "removeComments": true,
  "preserveConstEnums": true,
  "sourceMap": true,
  "outDir": "./dist",
  "emitDecoratorMetadata": true,　　//typeorm特需
  "experimentalDecorators": true　　//typeorm特需
 },
 "include": [
  "src/**/*"
 ],
 "exclude": [
  "node_modules",
  "**/*.spec.ts"
 ]
}

{
 "type": "oracle",
 "host": "10.16.2.41",
 "port": 1521,
 "username": "admin",
 "password": "admin",
 "sid": "ORCL",
 "synchronize": true,
 "logging": true,
 "entities": [
  "src/entity/**/*.ts"
 ],
 "migrations": [
  "src/migration/**/*.ts"
 ],
 "subscribers": [
  "src/subscriber/**/*.ts"
 ]
}

{
 "name": "Current TS File",
 "type": "node",
 "request": "launch",
 "program": "${workspaceRoot}\\node_modules\\ts-node\\dist\\bin.js",
 "args": [
  "${relativeFile}"
 ],
 "cwd": "${workspaceRoot}",
 "protocol": "inspector"
}

import "reflect-metadata";
import {createConnection} from "typeorm";
import {xxx} from "./src/entity/xxx";　　//引入数据表结构映射文件

createConnection().then(async connection => {　　//连接参数为空时自动按照路径下ormconfig.json信息连接
 /*let a = await connection.query(
  `SELECT * FROM xxx`
 ); *///直接使用原生sql语句查询
 
 let a = await connection.manager.find(xxx)　　//使用连接器查询 connection.manager
 console.log("result: ", a);
}).catch(error => console.log(error));