6.1. Node.js使用ODBC方式连接到数据库(Linux)
本章节将介绍Node.js程序通过ODBC连接到GBase 8s数据库的方式。
ODBC是CSDK的一部分,因此本操作依赖CSDK;同时ODBC依赖于操作系统的unixODBC。
6.1.1. 示例环境介绍
操作系统:Ubuntu 22.04.3 LTS (x86_64)
数据库版本:GBase 8s v8.8_3.6.3_3x2_1
NodeJs版本:v22.18.0(LTS) (https://nodejs.org/en/download)
6.1.2. 依赖包
rootnetsky:~# apt -y install autoconf gcc g++ unixodbc unixodbc-dev
6.1.3. 安装GBase ClientSDK及配置ODBC
安装目录为/opt/gbase
参考:CSDK安装
在/etc/ld.so.conf.d目录下增加GBase 8s的库目录配置文件gbase8scsdk-x86_64.conf
rootnetsky:/etc/ld.so.conf.d# pwd
/etc/ld.so.conf.d
rootnetsky:/etc/ld.so.conf.d# more gbase8scsdk-x86_64.conf
/opt/gbase/lib
/opt/gbase/lib/cli
/opt/gbase/lib/esql
设置环境变量,并加载
root@netsky:~# more env_csdk
export GBASEDBTDIR=/opt/gbase
export PATH=$GBASEDBTDIR/bin:$PATH
export LD_LIBRARY_PATH=$GBASEDBTDIR/lib:$GBASEDBTDIR/lib/cli:$GBASEDBTDIR/lib/esql:$LD_LIBRARY_PATH
# ODBCINI
export ODBCINI=/opt/gbase/etc/odbc.ini
root@netsky:~# . env_csdk
配置ODBCINI配置文件,根据CSDK环境,配置如下:
[ODBC Data Sources]
testdb=GBase ODBC DRIVER
;
; Define ODBC Database Driver's Below - Driver Configuration Section
;
[testdb]
Driver=/opt/gbase/lib/cli/iclit09b.so
Driver=GBase ODBC DRIVER
Description=GBase ODBC DRIVER
Database=testdb
LogonID=gbasedbt
pwd=GBase123$%
Servername=gbase01
CursorBehavior=0
CLIENT_LOCALE=zh_CN.utf8
DB_LOCALE=zh_CN.utf8
GL_USEGLU=1
TRANSLATIONDLL=/opt/gbase/lib/esql/igo4a304.so
; ISOLATIONLEVEL=1 # 使用该参数(简写:ISOLVL)设置默认的隔离级别,0-5
;
; UNICODE connection Section
;
[ODBC]
;uncomment the below line for UNICODE connection
UNICODE=UCS-2 # 如果需要使用unicode连接数据库,这里需要去除注释,值改为UCS-2
;
; Trace file Section
;
Trace=0
TraceFile=/tmp/odbctrace.out
InstallDir=/opt/gbase
TRACEDLL=idmrs09a.so
6.1.4. 安装Node.js
安装Node.js可直接下载二进制包的方式。示例使用Node.js v22.18.0(LTS)
下载、解压
root@netsky:~# wget https://nodejs.org/dist/v22.18.0/node-v22.18.0-linux-x64.tar.xz
root@netsky:~# tar -Jxf node-v22.18.0-linux-x64.tar.xz
root@netsky:~# mv node-v22.18.0-linux-x64 /usr/local/node
设置环境变量文件(也可以写入到/etc/profile中)
# node.js的目录NODEDIR
export NODEDIR=/usr/local/node
export PATH=$NODEDIR/bin:$PATH
加载环境变量,确认版本
root@netsky:~# node --version
v22.18.0
root@netsky:~# npm --version
10.9.3
6.1.5. Node.js安装node-gyp和odbc
通过npm安装node-gyp和odbc
root@netsky:~# npm install node-gyp
root@netsky:~# npm install odbc
# 验证
root@netsky:~# npm list | egrep '(node-gyp|odbc)'
├── node-gyp@11.4.1
└── odbc@2.4.9
6.1.6. 编写测试代码
编写测试程序TestNodejsODBC.jsNode.js使用odbc方式,参考:https://www.npmjs.com/package/odbc
const odbc = require('odbc');
async function DB() {
const connectionConfig = {
// 使用DSN连接
connectionString: 'DSN=testdb',
// 也可以使用DSN-Less连接
// connectionString: 'DRIVER=/opt/gbase/lib/cli/iclis09b.so;HOST=192.168.0.212;SERVER=gbase01;SERVICE=13633;PROTOCOL=onsoctcp;DATABASE=testdb;UID=gbasedbt;PWD=GBase123$%;DB_LOCALE=zh_CN.utf8;CLIENT_LOCALE=zh_CN.utf8;',
connectionTimeout: 10,
loginTimeout: 10,
}
const connection = await odbc.connect(connectionConfig);
const statement = await connection.createStatement();
await statement.prepare('drop table if exists company;');
await statement.execute();
console.log('删除表');
await statement.prepare('create table company(coid serial,coname varchar(255),coaddr varchar(255), primary key(coid));');
await statement.execute();
console.log('创建表');
// 事务
await connection.beginTransaction();
await statement.prepare('insert into company values (0,?,?),(0,?,?);');
await statement.bind(['GBase','TJ','GBase Beijin','BJ']);
await statement.execute();
await connection.commit();
console.log('插入表');
await statement.prepare('select * from company;');
const result = await statement.execute();
console.log(result);
console.log('查询表');
}
DB();
执行测试
root@netsky:~# node TestNodejsODBC.js
删除表
创建表
插入表
[
{ coid: 1, coname: 'GBase', coaddr: 'TJ' },
{ coid: 2, coname: 'GBase Beijin', coaddr: 'BJ' },
statement: 'select * from company;',
parameters: [],
return: undefined,
count: -1,
columns: [
{
name: 'coid',
dataType: 4,
dataTypeName: 'SQL_INTEGER',
columnSize: 10,
decimalDigits: 0,
nullable: false
},
{
name: 'coname',
dataType: 12,
dataTypeName: 'SQL_VARCHAR',
columnSize: 255,
decimalDigits: 0,
nullable: true
},
{
name: 'coaddr',
dataType: 12,
dataTypeName: 'SQL_VARCHAR',
columnSize: 255,
decimalDigits: 0,
nullable: true
}
]
]
查询表
最后更新日期: 2025-08-22