MongoDb问题集

一、解决SpringBoot MongoDB插入文档默认生成_class字段问题 

@Configuration
public class SpringMongoConfig{
 
 
  @Bean
 public  MongoTemplate mongoTemplate() throws Exception {
 
    //remove _class
    MappingMongoConverter converter = 
        new MappingMongoConverter(mongoDbFactory(), new MongoMappingContext());
    converter.setTypeMapper(new DefaultMongoTypeMapper(null));
 
    MongoTemplate mongoTemplate = new MongoTemplate(mongoDbFactory(), converter);
 
    return mongoTemplate;
 
  }
 
}

二、spring boot 集成mongodb 开启事务

@Configuration
public class TransactionConfig {

    @Bean
    MongoTransactionManager transactionManager(MongoDbFactory factory){
        return new MongoTransactionManager(factory);
    }

}