相信看过上一篇文章的小伙伴已经知道了, 这章要讲的就是MongoDB主从配置。
在这边文章中,你将要学到的是在项目中配置主从数据库,并且兼容其他数据库哟。。这些都是博主项目中需要并且比较重要的知识哦~
好了,废话不多说,直接进主题。
1.pom依赖
<span style="white-space:pre"> </span><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-mongodb</artifactId> </dependency>
2.配置文件的编写
## master mongomaster: mongodb: host: localhost port: 27017 database: db_ops## slave1 mongoslave1: mongodb: host: localhost port: 27017 database: db_note## zookeeper注册中心
3.配置文件的编写
在mongodb主从配置中,配置有所不同
1.配置父类AbstractMongoConfigure
public abstract class AbstractMongoConfigure { private String host, database; private int port; public MongoDbFactory mongoDbFactory() throws Exception { return new SimpleMongoDbFactory(new MongoClient(host, port), database); } /* * Factory method to create the MongoTemplate */ abstract public MongoTemplate getMongoTemplate() throws Exception; public String getHost() { return host; } public void setHost(String host) { this.host = host; } public String getDatabase() { return database; } public void setDatabase(String database) { this.database = database; } public int getPort() { return port; } public void setPort(int port) { this.port = port; }}
2.主数据库配置
@Configuration@EnableAutoConfiguration(exclude = {MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})@EnableMongoRepositories(basePackages = {"com.jx.ops.mapper.mongodb.ops"},mongoTemplateRef = "opsMongoTemplate")@ComponentScan@ConfigurationProperties(prefix = "ops.mongodb")public class MongoMasterConfig extends AbstractMongoConfigure { @Override @Bean(name = "opsMongoTemplate") @Primary //<span style="color:#ff0000;">重点哦</span> public MongoTemplate getMongoTemplate() throws Exception { return new MongoTemplate(mongoDbFactory()); }}
3.从数据库配置
@Configuration@EnableAutoConfiguration(exclude = {MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})@EnableMongoRepositories(basePackages = {"com.jx.ops.mapper.mongodb.post"},mongoTemplateRef = "postMongoTemplate")@ComponentScan@ConfigurationProperties(prefix = "post.mongodb")public class MongoPostConfig extends AbstractMongoConfigure { @Override @Bean(name = "postMongoTemplate") public MongoTemplate getMongoTemplate() throws Exception { return new MongoTemplate(mongoDbFactory()); }}
到此,主从数据库也讲解完毕,如果有不懂或出bug的小伙伴可以留言我哟。。
以上这篇springboot配置多数据源的实例(MongoDB主从)就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持VeVb武林网。
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