Java驅動遠程連接mongoDB
mongodb默認是不能遠程連接的,而且在linux安裝完你會發現,它的目錄極其簡單,連個配置文件都沒有. 我的mongodb的版本是3.6,目前最新的.https://www.mongodb.com/mongodb-3.6
百度了一下看是有配置文件: mongodb.conf. 又檢查了下目錄確實沒有.然後只能自己創建了.
在官方文檔找了關於配置文件的介紹: https://docs.mongodb.com/manual/reference/configuration-options/
文檔很長:
Configuration File
File Format
Use the Configuration File
Core Options
systemLog Options
processManagement Options
net Options
security Options
setParameter Option
storage Options
operationProfiling Options
replication Options
sharding Options
auditLog Options
snmp Options
Text Search Options
mongos-only Options
Windows Service Options
我把與遠程連接及log文件有關的標紅了, 如果只是修改遠程連接, 這幾個重點看下就可以.
文件格式
配置文件使用 YAML格式, 應該都見過,沒見過自行baidu..
一個簡單的配置文件:
systemLog: destination: file #mongod或mongos應發送所有診斷日誌信息的日誌文件的路徑，而不是標準輸出或主機的syslog.MongoDB在指定的路徑上創建日誌文件。 path: "/home/xxx/mongod.log" #追加在文件後邊 logAppend: false storage: #數據庫文件存放位置 dbPath:"/home/xxx/db" processManagement: fork: true net: #綁定所有的ip地址:0.0.0.0 bindIp: 0.0.0.0 port: 27017 security: authorization: disabled
把path 和dbPath 換成你自己的路徑,其中mongod.log是存放控制臺日誌的地方.
啟動
使用配置文件啟動
mongod --config ./mongod.conf?
或
mongod -f /etc/mongod.conf?
Java程序
一個超級簡單的java程序
import com.mongodb.MongoClient;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.MongoCollection;
import org.bson.Document;
public class QuickTour {
MongoClient mongoClient;
public void connect(){
mongoClient = new MongoClient("10.80.18.1");
MongoDatabase database = mongoClient.getDatabase("firstDB");
MongoCollection<Document> collection = database.getCollection("firstCollection1");
Document myDoc = collection.find().first();
System.out.println(myDoc.toJson());
}
public static void main(String[] args) {
QuickTour quickTour = new QuickTour();
quickTour.connect();
}
}
輸出:
一月 22, 2018 8:15:35 下午 com.mongodb.diagnostics.logging.JULLogger log
信息: Cluster created with settings {hosts=[10.80.18.1:27017], mode=SINGLE, requiredClusterType=UNKNOWN, serverSelectionTimeout=‘30000 ms‘, maxWaitQueueSize=500}
一月 22, 2018 8:15:36 下午 com.mongodb.diagnostics.logging.JULLogger log
信息: No server chosen by ReadPreferenceServerSelector{readPreference=primary} from cluster description ClusterDescription{type=UNKNOWN, connectionMode=SINGLE, serverDescriptions=[ServerDescription{address=10.80.18.1:27017, type=UNKNOWN, state=CONNECTING}]}. Waiting for 30000 ms before timing out
一月 22, 2018 8:15:36 下午 com.mongodb.diagnostics.logging.JULLogger log
信息: Opened connection [connectionId{localValue:1, serverValue:1}] to 10.80.18.1:27017
一月 22, 2018 8:15:36 下午 com.mongodb.diagnostics.logging.JULLogger log
信息: Monitor thread successfully connected to server with description ServerDescription{address=10.80.18.1:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 6, 2]}, minWireVersion=0, maxWireVersion=6, maxDocumentSize=16777216, roundTripTimeNanos=758049}
一月 22, 2018 8:15:36 下午 com.mongodb.diagnostics.logging.JULLogger log
信息: Opened connection [connectionId{localValue:2, serverValue:2}] to 10.80.18.1:27017
{ "_id" : { "$oid" : "5a631d80070db90c43a3477d" }, "x" : 1.0 }
成功!
轉發註明出處: http://www.cnblogs.com/jycboy/p/8331019.html
Java驅動遠程連接mongoDB