SpringBoot整合MongoDB多数据源

最新推荐文章于 2025-02-27 10:04:25 发布

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最新推荐文章于 2025-02-27 10:04:25 发布

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分类专栏： MongoDB

本文链接：https://blog.youkuaiyun.com/qq_28336351/article/details/94402768

本文介绍如何在SpringBoot项目中实现多源MongoDB数据库的配置与使用，包括依赖添加、配置文件设置、主副数据库配置代码示例、实体类定义、仓库接口创建及测试代码，展示了用户登录和日志记录的具体操作。

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依赖

// build.gradle

implementation 'org.springframework.boot:spring-boot-starter-data-mongodb'

配置文件

# application.yml

spring:
  data:
    mongodb:
      primary:
        uri: mongodb://localhost:27017/db1
      secondary:
        uri: mongodb://localhost:27017/db2

主数据库配置

// PrimaryMongoConfig.java

package com.fengwenyi.springboot_mongo_multi_source.config;

import com.mongodb.MongoClientURI;
import org.springframework.boot.autoconfigure.mongo.MongoProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.mongodb.MongoDbFactory;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;

/**
 * MongoDB Primary Config
 * @author Erwin Feng
 * @since 2019-07-01 17:12
 */
@Configuration
@EnableMongoRepositories(basePackages = "com.fengwenyi.springboot_mongo_multi_source.primary",
        mongoTemplateRef = "primaryMongoTemplate")
public class PrimaryMongoConfig {
   
   

    @Bean
    @Primary
    @ConfigurationProperties(prefix="spring.data.mongodb.primary")
    public MongoProperties primaryMongoProperties() {
   
   
        return new MongoProperties();
    }

    @Primary
    @Bean(name = "primaryMongoTemplate")
    public MongoTemplate primaryMongoTemplate() throws Exception {
   
   
        return new MongoTemplate(primaryFactory(primaryMongoProperties()));
    }

    @Bean
    @Primary
    public MongoDbFactory primaryFactory(MongoProperties mongoProperties) throws Exception {
   
   
        return new SimpleMongoDbFactory(new MongoClientURI(primaryMongoProperties().getUri()));
    }
}

副数据库配置

// SecondaryMongoConfig.java

package com.fengwenyi.springboot_mongo_multi_source.config;

import com.mongodb.MongoClientURI;
import org.springframework.boot.autoconfigure.mongo.MongoProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation