Linux下为Node.js程序配置MySQL或Oracle数据库的方法

mysql使用
安装mysql 模块:
在安装根目录 cmd命令行执行命令

npm install mysql

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安装成功后、
mysql数据库表已存在的情况下。
在nodejs根目录新建mysql.js:

var sys = require('util'); var mysql=require('mysql'); console.log('正在连接MySQL...'); var http = require("http"); var server=http.createServer(function(request, response) { response.writeHead(200, {"Content-Type": "text/html;charset:utf-8"}); response.write(""); var client = mysql.createConnection({'host':'localhost','port':3306,'user':'testmysql','password':'123456'}); clientConnectionReady = function(client) { client.query('use test', function(error, results) { if(error) { console.log('ClientConnectionReady Error: ' + error.message); client.end(); return; }else{ response.write("nodejs 服务器已经开始工作...
"); response.write("已经连接上MySQL....
"); } clientReady(client); }); }; clientReady = function(client) { var values = ['不错啊']; client.query('insert into nodemysql set names = :1', values, function(error, results) { if(error) { console.log("ClientReady Error: " + error.message); client.end(); return; } console.log('Inserted: ' + results.affectedRows + ' row.'); console.log('Id inserted: ' + results.insertId); } ); getData(client); } getData = function(client) { client.query( 'select * from nodemysql', function selectCb(error, results, fields) { if (error) { console.log('GetData Error: ' + error.message); client.end(); return; } var data = ''; for(var i=0; i"; } response.write(data); response.write("关闭MySQL连接..."); response.write(""); response.end(); } ); client.end(); }; clientConnectionReady(client); }); server.listen(8033,"127.0.0.1"); var sys = require("util"); sys.puts("Server running at http://localhost:8033/");

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运行 node mysql.js 。
浏览器访问 http://localhost:8033 即可看到效果。

配置oracle支持
在oracle网站下载oracle数据库客户端连接包
instantclient-basic-linux，instantclient-sdk-linux
解压oracle客户端连接模块

$ unzip instantclient-basic-linux-11.2.0.3.0.zip $ unzip instantclient-sdk-linux-11.2.0.3.0.zip $ sudo mv instantclient_11_2/ /opt/instantclient $ cd /opt/instantclient $ sudo ln -s libocci.so.11.1 libocci.so $ sudo ln -s libclntsh.so.11.1 libclntsh.so

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配置环境变量

$ export OCI_INCLUDE_DIR=/opt/instantclient/sdk/include/ $ export OCI_LIB_DIR=/opt/instantclient

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进入nodejs目录安装oracle模块支持

$ cd /usr/local/lib $ npm install oracle export LD_LIBRARY_PATH=/opt/instantclient

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编写oracle.js文件测试连接于执行sql是否正常

var oracle = require("oracle"); oracle.connect({ "hostname": "localhost", "user": "demo", "password": "demo", "database": "orcl", "port": 1521}, function(err, connection) { if(err) { console.log(err); } // selecting rows 注意 connection.execute 方法必须要三个参数 不然会出错 connection.execute("SELECT * FROM TEST WHERE ID = :1", ['1'], function(err1, results) { // results will be an array of objects console.log("query start"); if(err1) { console.log(err1); } // console.log(results.length); for(var i = 0; i < results.length; i++) { console.log(results[i].ID); } connection.close(); }); });

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终端运行命令