/** cnpm install mongodb */ var MongoClient = require('mongodb').MongoClient; var DB_CONN_STR = 'mongodb://test:123456@127.0.0.1:27017/test'; // 数据库为 test var insertData = function (db, callback) { //连接到表 site var collection = db.collection('site'); //插入数据 var data = [{ "name": "网站1", "url": "www.test1.com" }, { "name": "网站2", "url": "www.test2.com" }]; collection.insert(data, function (err, result) { if (err) { console.log('Error:' + err); return; } callback(result); }); } var selectData = function (db, callback) { //连接到表 var collection = db.collection('site'); //查询数据 var whereStr = { "name": '网站1' }; collection.find(whereStr).toArray(function (err, result) { if (err) { console.log('Error:' + err); return; } callback(result); }); } var updateData = function (db, callback) { //连接到表 var collection = db.collection('site'); //更新数据 var whereStr = { "name": '网站1' }; var updateStr = { $set: { "url": "https://www.test1.com" } }; collection.update(whereStr, updateStr, function (err, result) { if (err) { console.log('Error:' + err); return; } callback(result); }); } var delData = function (db, callback) { //连接到表 var collection = db.collection('site'); //删除数据 var whereStr = { "name": '网站1' }; collection.remove(whereStr, function (err, result) { if (err) { console.log('Error:' + err); return; } callback(result); }); } MongoClient.connect(DB_CONN_STR, function (err, db) { if (err) { console.log(err); return; } console.log("连接成功!"); //1、插入 insertData(db, function (result) { console.log(result); db.close(); }); //2、查询数据 selectData(db, function (result) { console.log(result); db.close(); }); //3、更新数据 updateData(db, function (result) { console.log(result); db.close(); }); //4、删除数据 delData(db, function (result) { console.log(result); db.close(); }); });
运行:
node mongodb_demo.js