Mongodb使用筆記

一、安裝

下載地址：
https://www.mongodb.org/dl/win32/x86_64-2008plus-ssl?_ga=2.224499034.1937345960.1533433838-1304921847.1533433838
解壓縮到自己想要安裝的目錄，比如d:\mongodb
創建文件夾d:\mongodb\db、d:\mongodb\log，分別用來安裝db和日誌文件，在log文件夾下創建一個日誌文件MongoDB.log，即d:\mongodb\log\MongoDB.log
運行cmd.exe進入dos命令界面，執行下列命令
　　> cd d:\mongodb\bin
　　> d:\mongodb\bin>mongod -dbpath “d:\mongodb\db”
測試鏈接。在瀏覽器中輸入：http://localhost:27017
It looks like you are trying to access MongoDB over HTTP on the native driver port.表示啓動成功
當mongod.exe被關閉時，mongo.exe 就無法連接到數據庫了，因此每次想使用mongodb數據庫都要開啓mongod.exe程序，所以比較麻煩，此時我們可以將MongoDB安裝爲windows服務
cmd跳轉到mongodb下的bin目錄下輸入
mongod --logpath d:\mongodb\log\mongodb.log --logappend --dbpath d:\mongodb\db --directoryperdb --serviceName MongoDB --install

二、使用Shell

繼續輸入：
mongo
如果是連接遠程數據庫：
mongo 192.168.1.200:27017/database -u user -p password
然後使用如下5個命令進行數據庫的創建、查找
show dbs
use taskdb
db.task.insert({…})
show collections
db.task.find()

管理員:c:\windows\system32\cmd.exe - mongo
D:\mongodb\bin>mongo
MongoDB shell version v3.4.1
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.4.1
Welcome to the MongoDB shell.
For interactive help, type “help”.
For more comprehensive documentation, see
http://docs.mongodb.org/
Questions? Try the support group
http://groups.google.com/group/mongodb-user
Server has startup warnings:
2018-08-05T10:38:19.068+0800 I CONTROL [initandlisten]
2018-08-05T10:38:19.069+0800 I CONTROL [initandlisten] ** WARNING: Access contr
ol is not enabled for the database.
2018-08-05T10:38:19.070+0800 I CONTROL [initandlisten] ** Read and wri
te access to data and configuration is unrestricted.
2018-08-05T10:38:19.071+0800 I CONTROL [initandlisten]
2018-08-05T10:38:19.072+0800 I CONTROL [initandlisten] Hotfix KB2731284 or late
r update is not installed, will zero-out data files.
2018-08-05T10:38:19.073+0800 I CONTROL [initandlisten]

show dbs
admin 0.000GB
local 0.000GB
use taskdb
switched to db taskdb
db.task.insert({name:“第一個任務”,states:{name:“創建”,person:“Jim”}})
WriteResult({ “nInserted” : 1 })
show dbs
admin 0.000GB
local 0.000GB
taskdb 0.000GB
show collections
task
db.task.find()
{ “_id” : ObjectId(“5b66677231e557b59154c59f”), “name” : “第一個任務”, “states”
: { “name” : “創建”, “person” : “Jim” } }

三、java連接Mongodb

1、Maven添加依賴

<dependencies>
    <dependency>
        <groupId>org.mongodb</groupId>
        <artifactId>mongodb-driver</artifactId>
        <version>3.4.1</version>
    </dependency>
</dependencies>
<dependencies>
    <dependency>
        <groupId>org.mongodb</groupId>
        <artifactId>bson</artifactId>
        <version>3.4.1</version>
    </dependency>
</dependencies>

2、連接數據庫的Java代碼如

import com.mongodb.MongoClient;
import com.mongodb.client.MongoDatabase;
 
public class MongoDBJDBC{
   public static void main( String args[] ){
      try{  
       // 連接到 mongodb 服務
         MongoClient mongoClient = new MongoClient( "localhost" , 27017 );
      
         // 連接到數據庫
         MongoDatabase mongoDatabase = mongoClient.getDatabase("mycol"); 
       System.out.println("Connect to database successfully");
       
      }catch(Exception e){
        System.err.println( e.getClass().getName() + ": " + e.getMessage() );
     }
   }
}

3、如果你的 Mongo 需要驗證用戶名及密碼，可以使用以下代碼：

package com.iwhere.rongyun.config;
 
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang3.StringUtils;
import org.bson.Document;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.mongodb.MongoClient;
import com.mongodb.MongoClientOptions;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
 
@Configuration
public class MongoConfig {
    private static Logger LOGGER = LoggerFactory.getLogger(MongoConfig.class);   
    @Value("${mongodb.hostports}")
    private String hostports;   
    @Value("${mongodb.maxConnect}")
    private String maxConnect;
    @Value("${mongodb.maxWaitThread}")
    private String maxWaitThread;
    @Value("${mongodb.maxTimeOut}")
    private String maxTimeOut;
    @Value("${mongodb.maxWaitTime}")
    private String maxWaitTime;   
    @Value("${mongodb.username}")
    private String username;
    @Value("${mongodb.password}")
    private String password;
    @Value("${mongodb.database}")
    private String database;
    @Value("${mongodb.collection")
    private String collection;   
   
    @Bean
    public MongoClient mongoClient() {
        MongoClient mongoClient = null;       
        MongoClientOptions.Builder build = new MongoClientOptions.Builder(); 
        build.connectionsPerHost(Integer.valueOf(maxConnect)); 
        build.threadsAllowedToBlockForConnectionMultiplier(Integer.valueOf(maxWaitThread)); 
        build.connectTimeout(Integer.valueOf(maxTimeOut) * 1000); 
        build.maxWaitTime(Integer.valueOf(maxWaitTime) * 1000); 
        MongoClientOptions options = build.build();          
        try {
            List<ServerAddress> addrs = new ArrayList<ServerAddress>(); 
            for (String hostport : hostports.split(", *")) {
                if (StringUtils.isBlank(hostport)) {
                    continue;
                }
                hostport = hostport.trim();               
                ServerAddress serverAddress = new ServerAddress(hostport.split(":")[0],Integer.valueOf(hostport.split(":")[1]));
                addrs.add(serverAddress); 
            }             
            MongoCredential credential = MongoCredential.createScramSha1Credential(username, database, password.toCharArray()); 
            List<MongoCredential> credentials = new ArrayList<MongoCredential>(); 
            credentials.add(credential);           
            mongoClient = new MongoClient(addrs,credentials, options);             
            LOGGER.info("【mongodb client】: mongodb客戶端創建成功");
        } catch (Exception e) {
            LOGGER.error("【mongodb client】: mongodb客戶端創建成功");
            e.printStackTrace();
        }
        return mongoClient;
    }
   
    @Bean
    public MongoDatabase mongoDatabase(MongoClient mongoClient) {
         MongoDatabase mongoDatabase = mongoClient.getDatabase(database);
         return mongoDatabase;
    }
   
    @Bean
    public MongoCollection<Document> mongoCollection(MongoDatabase mongoDatabase) {
        MongoCollection<Document> mongoCollection = mongoDatabase.getCollection(collection);
        return mongoCollection;
    }
   
}

通過spring配置文件注入所需的值即可, mondb.properties爲:

mongodb.hostports=192.168.51.100:2,192.168.51.101:533,192.168.51.102:21
mongodb.maxConnect=50
mongodb.maxWaitThread=50
mongodb.maxTimeOut=60
mongodb.maxWaitTime=60
mongodb.username=name
mongodb.password=pass
mongodb.database=data
mongodb.collection=user_rongyun

4、創建集合、選擇集合、插入文檔、檢索所有文檔、更新結果、檢索結果

import java.util.ArrayList;
import java.util.List;
import org.bson.Document;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
 
public class MongoDBJDBC{
   public static void main( String args[] ){
      try{   
         // 連接到 mongodb 服務
         MongoClient mongoClient = new MongoClient( "localhost" , 27017 );         
         // 連接到數據庫
         MongoDatabase mongoDatabase = mongoClient.getDatabase("mycol");  
         System.out.println("Connect to database successfully");
         mongoDatabase.createCollection("test");
         System.out.println("集合創建成功");         
         MongoCollection<Document> collection = mongoDatabase.getCollection("test");
         System.out.println("集合 test 選擇成功");
         //插入文檔  
         /** 
           * 1. 創建文檔 org.bson.Document 參數爲key-value的格式 
           * 2. 創建文檔集合List<Document> 
           * 3. 將文檔集合插入數據庫集合中 mongoCollection.insertMany(List<Document>) 插入單個文檔可以用 mongoCollection.insertOne(Document) 
           * */
         Document document = new Document("title", "MongoDB").  
         append("description", "database").  
         append("likes", 100).  
         append("by", "Fly");  
         List<Document> documents = new ArrayList<Document>();  
         documents.add(document);  
         collection.insertMany(documents);  
         System.out.println("文檔插入成功");  
         //檢索所有文檔  
         /** 
           * 1. 獲取迭代器FindIterable<Document> 
           * 2. 獲取遊標MongoCursor<Document> 
           * 3. 通過遊標遍歷檢索出的文檔集合 
           * */  
         FindIterable<Document> findIterable = collection.find();  
         MongoCursor<Document> mongoCursor = findIterable.iterator();  
         while(mongoCursor.hasNext()){  
            System.out.println(mongoCursor.next());  
         }  
         //更新文檔   將文檔中likes=100的文檔修改爲likes=200   
         collection.updateMany(Filters.eq("likes", 100)
                  , new Document("$set",new Document("likes",200)));  
         //檢索查看結果  
         FindIterable<Document> findIterable = collection.find();  
         MongoCursor<Document> mongoCursor = findIterable.iterator();  
         while(mongoCursor.hasNext()){  
            System.out.println(mongoCursor.next());  
         }  
      }catch(Exception e){
         System.err.println( e.getClass().getName() + ": " + e.getMessage() );
      }
   }
}

Mongodb使用筆記

一、安裝

二、使用Shell

三、java連接Mongodb

python gdal 安裝使用（Windows， python 3.6.8）

Mongodb使用筆記

Mac下配置sublime實現LaTeX

https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

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