node oracledb安装与使用

npm官网 https://www.npmjs.com/package/oracledb

node-oracledb api  https://oracle.github.io/node-oracledb/doc/api.html#getstarted

node-oracledb例子  https://github.com/oracle/node-oracledb/blob/master/examples/example.js#L32

1 查看安装教程  https://github.com/oracle/node-oracledb/blob/master/INSTALL.md#instwin

找到 使用Instant Client ZIP文件在Windows上安装Node-oracledb，按照说明操作

Client ZIP 文件下载地址  https://www.oracle.com/technetwork/topics/winsoft-085727.html

 

2 安装oracledb 模块

npm install oracledb

 3 连接数据库

Oracledb.js

const Oracledb = require('oracledb');

const Oracle = {
    connect: (connectInfo) => {
        return new Promise(function (resolve, reject) {
            Oracledb.getConnection(connectInfo, function (err,conn) {
                    if (err) {
                        console.log(err.message);
                    }
                    console.log("oracleDB连接成功");
                        resolve(conn);
                });
        });
    },
    close: conn => {
        conn.close(err => {
            if (err)
                console.error(err.message);
            console.log("关闭连接");
        });
    }
}

module.exports = Oracle;

操作数据库

Common.js

class Common {
    getOracleData(conn,query) {
        return new Promise(function (resolve, reject) {
            conn.execute(
                query,
                [],
                { resultSet: true },
                function (err, result) {
                    if (err) console.log(err.message);
                    result.resultSet.getRows(
                        1000000,
                        function(err,row){
                            if (err) console.log(err);
                            resolve(row);
                        });
                });
        });
    }
}

建立连接并操作

const Oracle = require('./Oracledb');
const Common= require('./Common');

const Config = {
    ORACLE_DEMO: {
        user: 'test', //用户
        password: '123',//密码
        connectString: '192.168.1.121/ORCL' //连接地址
    }
}
//建立数据库连接
let Connect = await Oracle.connect(Config.ORACLE_DEMO);
//查询数据数据
let totalDataArr = await Common.getOracleData(Connect , "SELECT DATA FROM TESTDATABASE");
//关闭数据库连接
Connect.close();