相关链接

• MongoDB Drivers
• Connection String URI Format
  说明 本文连接demo仅适用于阿里云提供的MongoDB内网连接地址。
• 获取分片集群实例的连接地址，无需手动拼接，详情请参见分片集群实例连接说明。
  说明 连接分片集群实例时，无需指定replicaSet参数。

Node.js 连接示例

相关链接：MongoDB Node.js Driver

1. 项目初始化。

   mkdir node-mongodb-demo
   cd node-mongodb-demo
   npm init

2. 安装驱动包以及工具包。

   npm install mongodb node-uuid sprintf-js –save

3. 获取云数据库 MongoDB 连接信息。
4. Node.js Demo Code。

       'use strict';
       var uuid = require('node-uuid');
       var sprintf = require("sprintf-js").sprintf;
       var mongoClient = require('mongodb').MongoClient;
       var host1 = "demotest-1.mongodb.tbc3.newtest.rdstest.aliyun-inc.com";
       var port1 = 27017;
       var host2 = "demotest-2.mongodb.tbc3.newtest.rdstest.aliyun-inc.com";
       var port2 = 27017;
       var username = "demouser";
       var password = "123456";
       var replSetName = "mgset-1441984991";
       var demoDb = "test";
       var demoColl = "testColl";
       // 官方建议使用的方案
       var url = sprintf("mongodb://%s:%d,%s:%d/%s?replicaSet=%s", host1, port1, host2, port2, demoDb, replSetName);
       console.info("url:", url);
       // 获取mongoClient
       mongoClient.connect(url, function(err, db) {
           if(err) {
               console.error("connect err:", err);
               return 1;
           }
           // 授权. 这里的username基于admin数据库授权
           var adminDb = db.admin();
           adminDb.authenticate(username, password, function(err, result) {
               if(err) {
                   console.error("authenticate err:", err);
                   return 1;
               }
               // 取得Collecton句柄
               var collection = db.collection(demoColl);
               var demoName = "NODE:" + uuid.v1();
               var doc = {"DEMO": demoName, "MESG": "Hello AliCoudDB For MongoDB"};
               console.info("ready insert document: ", doc);
               // 插入数据
               collection.insertOne(doc, function(err, data) {
                   if(err) {
                       console.error("insert err:", err);
                       return 1;
                   }
                   console.info("insert result:", data["result"]);
                   // 读取数据
                   var filter = {"DEMO": demoName};
                   collection.find(filter).toArray(function(err, items) {
                       if(err) {
                           console.error("find err:", err);
                           return 1;
                       }
                       console.info("find document: ", items);
                       //关闭Client，释放资源
                       db.close();
                   });
               });
           });
       });

PHP 连接示例

相关链接：

Mongodb php driver

1. 安装驱动包以及工具包。

       $ pecl install mongodb
       $ echo "extension=mongodb.so" >> `php --ini | grep "Loaded Configuration" | sed -e "s|.*:\s*||"`
       $ composer require "mongodb/mongodb=^1.0.0"

2. 获取云数据库MongoDB的连接信息。
3. PHP Demo Code。

       <?php
       require 'vendor/autoload.php'; // include Composer goodies
           # 实例信息
           $demo_seed1 = 'demotest-1.mongodb.test.aliyun-inc.com:3717';
           $demo_seed2 = 'demotest-2.mongodb.test.aliyun-inc.com:3717';
           $demo_replname = "mgset-1441984463";
           $demo_user = 'root';
           $demo_password = '123456';
           $demo_db = 'admin';
           # 根据实例信息构造mongodb connection string
           # mongodb://[username:password@]host1[:port1][,host2[:port2],...[,hostN[:portN]]][/[database][?options]]
           $demo_uri = 'mongodb://' . $demo_user . ':' . $demo_password . '@' .
             $demo_seed1 . ',' . $demo_seed2 . '/' . $demo_db . '?replicaSet=' . $demo_replname;
           $client = new MongoDB\Client($demo_uri);
           $collection = $client->testDb->testColl;
           $result = $collection->insertOne( [ 'name' => 'ApsaraDB for Mongodb', 'desc' => 'Hello, Mongodb'  ]  );
           echo "Inserted with Object ID '{$result->getInsertedId()}'", "\n";
           $result = $collection->find( [ 'name' => 'ApsaraDB for Mongodb']  );
           foreach ($result as $entry)
           {
             echo $entry->_id, ': ', $entry->name, "\n";
           }
       ?>

Java 连接示例

相关链接：

1. 获取云数据库 MongoDB 连接信息。
2. Java Demo Code。
   • Maven配置。

         <dependencies>
             <dependency>
                 <groupId>org.mongodb</groupId>
                 <artifactId>mongo-java-driver</artifactId>
                 <version>3.0.4</version>
             </dependency>
         </dependencies>

   • Java Code。

         import java.util.ArrayList;
         import java.util.List;
         import java.util.UUID;
         import org.bson.BsonDocument;
         import org.bson.BsonString;
         import org.bson.Document;
         import com.mongodb.MongoClient;
         import com.mongodb.MongoClientOptions;
         import com.mongodb.MongoClientURI;
         import com.mongodb.MongoCredential;
         import com.mongodb.ServerAddress;
         import com.mongodb.client.MongoCollection;
         import com.mongodb.client.MongoCursor;
         import com.mongodb.client.MongoDatabase;
         public class Main {
             public static ServerAddress seed1 = new ServerAddress("demotest-1.mongodb.tbc3.newtest.rdstest.aliyun-inc.com", 27017);
             public static ServerAddress seed2 = new ServerAddress("demotest-2.mongodb.tbc3.newtest.rdstest.aliyun-inc.com", 27017);
             public static String username = "demouser";
             public static String password = "123456";
             public static String ReplSetName = "mgset-1441984463";
             public static String DEFAULT_DB = "admin";
             public static String DEMO_DB = "test";
             public static String DEMO_COLL = "testColl";
             public static MongoClient createMongoDBClient() {
                 // 构建Seed列表
                 List<ServerAddress> seedList = new ArrayList<ServerAddress>();
                 seedList.add(seed1);
                 seedList.add(seed2);
                 // 构建鉴权信息
                 List<MongoCredential> credentials = new ArrayList<MongoCredential>();
                 credentials.add(MongoCredential.createScramSha1Credential(username,
                         DEFAULT_DB, password.toCharArray()));
                 // 构建操作选项，requiredReplicaSetName属性外的选项根据自己的实际需求配置，默认参数满足大多数场景
                 MongoClientOptions options = MongoClientOptions.builder()
                         .requiredReplicaSetName(ReplSetName).socketTimeout(2000)
                         .connectionsPerHost(1).build();
                 return new MongoClient(seedList, credentials, options);
             }
             public static MongoClient createMongoDBClientWithURI() {
                 //另一种通过URI初始化
                 //mongodb://[username:password@]host1[:port1][,host2[:port2],...[,hostN[:portN]]][/[database][?options]]
                 MongoClientURI connectionString = new MongoClientURI("mongodb://" + username + ":" + password + "@" + 
                                                                      seed1 + "," + seed2 + "/" + 
                                                                      DEFAULT_DB + 
                                                                      "?replicaSet=" + ReplSetName);
                 return new MongoClient(connectionString);
             }
             public static void main(String args[]) {
                 MongoClient client = createMongoDBClient();
                 //or
                 //MongoClient client = createMongoDBClientWithURI();
                 try {
                     // 取得Collecton句柄
                     MongoDatabase database = client.getDatabase(DEMO_DB);
                     MongoCollection<Document> collection = database.getCollection(DEMO_COLL);
                     // 插入数据
                     Document doc = new Document();
                     String demoname = "JAVA:" + UUID.randomUUID();
                     doc.append("DEMO", demoname);
                     doc.append("MESG", "Hello AliCoudDB For MongoDB");
                     collection.insertOne(doc);
                     System.out.println("insert document: " + doc);
                     // 读取数据
                     BsonDocument filter = new BsonDocument();
                     filter.append("DEMO", new BsonString(demoname));
                     MongoCursor<Document> cursor = collection.find(filter).iterator();
                     while (cursor.hasNext()) {
                         System.out.println("find document: " + cursor.next());
                     }       
                 } finally {
                     //关闭Client，释放资源
                     client.close();
                 }
                 return ;
             }
         }

Python 连接示例

1. 安装pymongo。

       pip install pymongo

2. 获取云数据库MongoDB连接信息。
3. Python Demo Code。

       import uuid
           from pymongo import MongoClient
           #两地址
           CONN_ADDR1 = 'demotest-1.mongodb.tbc3.newtest.rdstest.aliyun-inc.com:27017'
           CONN_ADDR2 = 'demotest-2.mongodb.tbc3.newtest.rdstest.aliyun-inc.com:27017'
           REPLICAT_SET = 'mgset-1441984463'
           username = 'demouser'
           password = '123456'
           #获取mongoclient
           client = MongoClient([CONN_ADDR1, CONN_ADDR2], replicaSet=REPLICAT_SET)
           #授权. 这里的user基于admin数据库授权
           client.admin.authenticate(username, password)
           #使用test数据库的collection:testColl做例子, 插入doc, 然后根据DEMO名查找
           demo_name = 'python-' + str(uuid.uuid1())
           print 'demo_name:', demo_name
           doc = dict(DEMO=demo_name, MESG="Hello ApsaraDB For MongoDB")
           doc_id = client.test.testColl.insert(doc)
           print 'doc_id:', doc_id
           for d in client.test.testColl.find(dict(DEMO=demo_name)):
               print 'find documents:', d