【mongo】SpringBoot连接Mongo数据库_application.yaml mongodb-优快云博客

本文链接：https://blog.youkuaiyun.com/handsomeBird/article/details/87197930

本文详细介绍如何在SpringBoot项目中配置并连接MongoDB数据库，包括通过application.yml配置文件及自定义配置类实现数据库连接的方法。

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【mongo】SpringBoot连接Mongo数据库

方法1：配置文件application.yml

//如下写法会自动连接mongo,首先匹配环境变量中的值,如无法连接则再匹配第一个":"后的配置

spring:
  data:
    mongodb:
      uri: ${SMART_ADMIN_MONGO_INTERNAL:mongodb://admin:admin@localhost:27017/firstMongo}

方法2:配置类

具体连接信息:

#本地
mongo:
  host: localhost
  port: 27017
  username: admin
  password: admin
  database: firstMongo

配置类:

import com.mongodb.MongoClient;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;

import java.util.Arrays;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration;
import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.config.AbstractMongoConfiguration;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;

@Configuration
@EnableAutoConfiguration(exclude = {MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})
@ComponentScan
@EnableMongoRepositories
public class MongoDataSourceConfig extends AbstractMongoConfiguration {

    @Value("${mongo.database}")
    private String dbname;

    @Value("${mongo.host}")
    private String dbhost;

    @Value("${mongo.port}")
    private String dbport;

    @Value("${mongo.username}")
    private String username;

    @Value("${mongo.password}")
    private String password;

    public MongoDataSourceConfig() {
        if (null == dbport || "".equalsIgnoreCase(dbport.trim())) {
            dbport = "27017";
        }
    }

    @Override
    @Bean(name = "mongoClient")
    public MongoClient mongoClient() {
        ServerAddress serverAddress = new ServerAddress(dbhost, Integer.parseInt(dbport));
        MongoCredential credential = MongoCredential.createCredential(username, dbname, password.toCharArray());
        MongoClient mongoClient = new MongoClient(serverAddress, Arrays.asList(credential));
        return mongoClient;
    }

    @Override
    protected String getDatabaseName() {
        return this.dbname;
    }

}