Spring-data-mongodb Configure and use multiple Mongotemplate_spring-data-mongodb

Sometimes it is necessary to use multiple mongotemplate to access two different MongoDB instances, at which point the default configuration cannot be used (in spring-boot case) and can only be manually matched. 1. Introducing dependence (take spring-boot as an example)

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId> Spring-boot-starter-data-mongodb</artifactid>
</dependency>

2, configuration file to configure two MongoDB URI (also can be matched to two host/port)

Spring:
  profiles:dev
  data:
    MongoDB:
      uri:mongodb://192.168.0.9:27017/log1dbname
    MONGODB2:
      Uri:mongodb://192.168.0.11:27017/log2dbname

3, configuration file appearance:

@Configuration public class mongoconfig{//@Value ("${mongo.host}") @Value ("${spring.data.mongodb.uri}") Private S
   Tring Mongo_uri1;

   @Value ("${spring.data.mongodb2.uri}") Private String mongo_uri2; @Bean public Mongomappingcontext Mongomappingcontext () {Mongomappingcontext mappingcontext = new Mongomappingcon
      Text ();
   return mappingcontext; //==================== Connect to MONGODB1 server ====================================== @Bean//Use custom typemapper to remove write Mong The "_class" field at ODB is public mappingmongoconverter mappingMongoConverter1 () throws Exception {Defaultdbrefresolver DbR
      Efresolver = new Defaultdbrefresolver (This.dbfactory1 ());
      Mappingmongoconverter converter = new Mappingmongoconverter (Dbrefresolver, This.mongomappingcontext ());
      Converter.settypemapper (new Defaultmongotypemapper (null));
   return converter; @Bean @Primary public mongodbfactory dbFactory1 () throws Unknownhostexception {return new SimplemongOdbfactory (New Mongoclienturi (MONGO_URI1)); @Bean @Primary public mongotemplate mongoTemplate1 () throws Exception {return new mongotemplate (this.db
   Factory1 (), This.mappingmongoconverter1 ()); }//===================== connect to MONGODB2 server =================================//No need to remove "_class" field when writing to MongoDB///can use M Ongo or Mongodbfactory Two objects are configured @Bean public Mongo Mongo2 () throws Exception {return new mongoclient (new MONGOCLI
   Enturi (Mongo_data_sync_uri)); @Bean public Mongotemplate MongoTemplate2 () throws Exception {return new Mongotemplate (Mongo2 (), Log2dbnam
   E "); } */@Bean public mongodbfactory DbFactory2 () throws Unknownhostexception {return new Simplemongodbfactory (n
   EW Mongoclienturi (MONGO_URI2));
   @Bean public Mongotemplate MongoTemplate2 () throws Exception {return new Mongotemplate (DbFactory2 ()); }
}

4, use method: use @resource annotation According to the name inject two different mongotemplate

@Resource
private mongotemplate mongoTemplate1;
@Resource
private mongotemplate mongoTemplate2;

@Test public
void Mongotemplatetest () {
   Pvuv pvuv = new Pvuv ();
   Pvuv.setdate (Localdate.now ());
   PVUV.SETPV (1000);
   Pvuv.setuv ();
   Mongotemplate1.save (Pvuv, "pvuvcollection");
   Mongotemplate2.save (Pvuv, "pvuvcollection");
}