这篇文章主要介绍了springboot-mongodb的多数据源配置的方法步骤，文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值，需要的朋友们下面随着小编来一起学习学习吧
在日常工作中，我们可能需要连接多个MongoDB数据源，比如用户库user，日志库log。本章我们来记录连接多个数据源的步骤，以两个数据源为例，多个数据源类推。
1、pom.xml中引入mongodb的依赖
org.springframework.bootspring-boot-starter-data-mongodb org.projectlomboklombok org.springframework.bootspring-boot-autoconfigureRELEASE
Lombok – 是一个可以通过简单的注解形式来帮助我们简化消除一些必须有但显得很臃肿的Java代码的工具，通过使用对应的注解，可以在编译源码的时候生成对应的方法。简单试了以下这个工具还挺好玩的，加上注解我们就不用手动写 getter\setter、构建方式类似的代码了。
2, yml配置:
mongodb: primary: host: 192.168.9.60 port: 20000 database: test secondary: host: 192.168.9.60 port: 20000 database: test1
3, 配置2个库的数据源:
@Data @ConfigurationProperties(prefix = "mongodb") public class MultipleMongoProperties { private MongoProperties primary = new Mon<strong style="color:transparent">来源gao@daima#com搞(%代@#码@网</strong>goProperties(); private MongoProperties secondary = new MongoProperties(); }
3.1) 第一个库封装:
@Configuration @EnableMongoRepositories(basePackages = "com.neo.model.repository.primary", mongoTemplateRef = PrimaryMongoConfig.MONGO_TEMPLATE) public class PrimaryMongoConfig { protected static final String MONGO_TEMPLATE = "primaryMongoTemplate"; }
3.2) 第二个库封装 :
@Configuration @EnableMongoRepositories(basePackages = "com.neo.model.repository.secondary", mongoTemplateRef = SecondaryMongoConfig.MONGO_TEMPLATE) public class SecondaryMongoConfig { protected static final String MONGO_TEMPLATE = "secondaryMongoTemplate"; }
3.3) mongoTemplate:
@Configuration public class MultipleMongoConfig { @Autowired private MultipleMongoProperties mongoProperties; @Primary @Bean(name = PrimaryMongoConfig.MONGO_TEMPLATE) public MongoTemplate primaryMongoTemplate() throws Exception { return new MongoTemplate(primaryFactory(this.mongoProperties.getPrimary())); } @Bean @Qualifier(SecondaryMongoConfig.MONGO_TEMPLATE) public MongoTemplate secondaryMongoTemplate() throws Exception { return new MongoTemplate(secondaryFactory(this.mongoProperties.getSecondary())); } @Bean @Primary public MongoDbFactory primaryFactory(MongoProperties mongo) throws Exception { return new SimpleMongoDbFactory(new MongoClient(mongo.getHost(), mongo.getPort()), mongo.getDatabase()); } @Bean public MongoDbFactory secondaryFactory(MongoProperties mongo) throws Exception { return new SimpleMongoDbFactory(new MongoClient(mongo.getHost(), mongo.getPort()), mongo.getDatabase()); } }
4, 创建2个库对应的repository:
@Data @AllArgsConstructor @NoArgsConstructor @Document(collection = "first_mongo") public class PrimaryMongoObject { @Id private String id; private String value; @Override public String toString() { return "PrimaryMongoObject{" + "id='" + id + '\'' + ", value='" + value + '\'' + '}'; } }
public interface PrimaryRepository extends MongoRepository { }
测试:
@RunWith(SpringRunner.class) @SpringBootTest public class MuliDatabaseTest { @Autowired private PrimaryRepository primaryRepository; @Autowired private SecondaryRepository secondaryRepository; @Test public void TestSave() { System.out.println("************************************************************"); System.out.println("测试开始"); System.out.println("************************************************************"); this.primaryRepository .save(new PrimaryMongoObject(null, "第一个库的对象")); this.secondaryRepository .save(new SecondaryMongoObject(null, "第二个库的对象")); List primaries = this.primaryRepository.findAll(); for (PrimaryMongoObject primary : primaries) { System.out.println(primary.toString()); } List secondaries = this.secondaryRepository.findAll(); for (SecondaryMongoObject secondary : secondaries) { System.out.println(secondary.toString()); } System.out.println("************************************************************"); System.out.println("测试完成"); System.out.println("************************************************************"); } }
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转载请注明原文链接：springboot-mongodb的多数据源配置的方法步骤
转载请注明原文链接：springboot-mongodb的多数据源配置的方法步骤
