在开发过程中有的时候需要像mysql那样需要使用多个mongodb数据库。

可以使用mongodb配置使用多个mongotemplate

在pom.xml中引入

       
     
      org.springframework.boot
        
     
      spring-boot-starter-data-mongodb
     
    

在配置文件中配置多个uri

spring.data.mongodb1.uri=mongodb://192.168.0.66/test1spring.data.mongodb2.uri=mongodb://192.168.0.66/test2

新建配置文件

@Configurationpublic class MongoConfig {    @Value("${spring.data.mongodb1.uri}")    private String mongodb1;    @Value("${spring.data.mongodb2.uri}")    private String mongodb2;    @Bean    public MongoMappingContext mongoMappingContext() {        return new MongoMappingContext();    }     /**      * 配置mongodb1       */    @Bean    public MappingMongoConverter mappingMongoConverter() throws UnknownHostException {        DefaultDbRefResolver dbRefResolver = new DefaultDbRefResolver(this.mongoDbFactory1());        MappingMongoConverter converter = new MappingMongoConverter(dbRefResolver, this.mongoMappingContext());        converter.setTypeMapper(new DefaultMongoTypeMapper(null));        return converter;    }    @Bean    @Primary    public MongoDbFactory mongoDbFactory1() throws UnknownHostException {        return new SimpleMongoDbFactory(new MongoClientURI(mongodb1));    }    @Bean    @Primary    public MongoTemplate mongoTemplate1() throws UnknownHostException {        return new MongoTemplate(this.mongoDbFactory1(), mappingMongoConverter());    }    /**     * 配置mongdodb2     */    @Bean    public MongoDbFactory mongoDbFactory2() throws UnknownHostException {        return new SimpleMongoDbFactory(new MongoClientURI(mongodb2));    }    @Bean    public MongoTemplate mongoTemplate2() throws UnknownHostException {        return new MongoTemplate(this.mongoDbFactory2());    }}

测试文件中引入多个MongoTemplate

@RunWith(SpringRunner.class)@SpringBootTestpublic class DemoApplicationTests {    @Resource    MongoTemplate mongoTemplate1;    @Resource    MongoTemplate mongoTemplate2;    @Test    public void contextLoads() {        User user = new User();        user.setUsername("sher");        mongoTemplate1.save(user);        User user1 = new User();        user1.setUsername("java");        mongoTemplate2.save(user1);    }}

测试结果：