yaml配置文件：

spring:
  data:
    mongodb:
      uri: mongodb://admin:密码@ip:27017/paasoo?authSource=admin
      other:
        uri: mongodb://admin:密码@ip:27017/conversation?authSource=admin

java config文件：

package com.paasoo.quartz.config.mongo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.SimpleMongoClientDatabaseFactory;

/**
 * @Author: bin.liu
 * @Date: 2023/7/5 14:11
 * @Description:
 */
@Configuration
public class MultipleMongoConfig {

    @Value("${spring.data.mongodb.uri}")
    private String primaryUri;
    @Value("${spring.data.mongodb.other.uri}")
    private String otherUri;

    @Primary
    @Bean(name = "mongoTemplate")
    public MongoTemplate primaryMongoTemplate() {
        SimpleMongoClientDatabaseFactory simpleMongoClientDbFactory = new SimpleMongoClientDatabaseFactory(primaryUri);
        return new MongoTemplate(simpleMongoClientDbFactory);
    }

    @Bean(name = "conversationMongoTemplate")
    public MongoTemplate conversationMongoTemplate() {
        SimpleMongoClientDatabaseFactory simpleMongoClientDbFactory = new SimpleMongoClientDatabaseFactory(otherUri);
        return new MongoTemplate(simpleMongoClientDbFactory);
    }
}

 

实际调用：

因为一开始是一个 mongo库， 已经有很多代码用了mongoTemplate，所以尽量不用动以前的代码，实现两个都可以用：