Java Operation mongodb--Connection database

MongoDB provides the driver jar for the Java language operation, and the version I am using is: Mongo-java-driver-3.2.2.jar

Drive jar:https://mongodb.github.io/mongo-java-driver/

Here are the ways to create a MONGO connection, get a database and a table, get a table, and then update the next section.

1  /**2 * Initialize connection pool, set parameters. 3      */4     Private Static voidinit () {5 6         //The parameters are: number of link pools max wait time scoket timeout set connection pool maximum lifetime connection time-out7Mongoclientoptions options =Mongoclientoptions.builder ()8. Connectionsperhost (Integer.parseint (Configutil.getparameter ("Mongodb.connectionsperhost")))9. Maxwaittime (Integer.parseint (Configutil.getparameter ("Mongodb.maxwaittime")))Ten. Sockettimeout (Integer.parseint (Configutil.getparameter ("Mongodb.sockettimeout"))) One. Maxconnectionlifetime (Integer.parseint (Configutil.getparameter ("Mongodb.maxconnectionlifetime"))) A. ConnectTimeout (Integer.parseint (Configutil.getparameter ("Mongodb.connecttimeout")) . Build (); -  -         //Connect to a MONGODB service if a remote connection can replace "localhost" with the IP address of the server the         //serveraddress () Two parameters are server address and port, respectively -ServerAddress serveraddress =NewServerAddress (Configutil.getparameter ("Mongodb.hostname"), -Integer.parseint (Configutil.getparameter ("Mongodb.port"))); -List<serveraddress> Addrs =NewArraylist<serveraddress>(); + Addrs.add (serveraddress); -  +         //three parameters for user name database name password AMongocredential credential =mongocredential.createscramsha1credential ( atConfigutil.getparameter ("Mongodb.username"), Configutil.getparameter ("Mongodb.databasename"), -Configutil.getparameter ("Mongodb.password"). ToCharArray ()); -List<mongocredential> credentials =NewArraylist<mongocredential>(); - Credentials.add (credential); -  -         //obtaining MongoDB connections through connection authentication inClient =Newmongoclient (Addrs, credentials, options); -}

1 /**2 * Get DB by name, equivalent to a connection3      * 4      * @paramDbName5      * @return6      */7      Public Staticmongodatabase getdatabase () {8         if(Client = =NULL) {9             //InitializeTen init (); One         } A         returnClient.getdatabase (Configutil.getparameter ("Mongodb.databasename")); -     } -     /** the * Get Collection -      * @paramCollectionName -      * @return -      */ +      Public StaticMongocollection<document>getcollection (String collname) { -         if(Client = =NULL) { +             //Initialize A init (); at         } -Mongodatabase db =getdatabase (); -Mongocollection<document> collection =db.getcollection (collname);  -         returncollection; -}

Java Operation mongodb--Connection database