Spring Boot多數據源MultiDataSource配置（最全）

今天學習了SpringBoot配置多數據源再次記錄分享給大家。demo開發工具idea、JDK1.8、技術Spring Boot+Mybatis+Druid。

• 代碼目錄結構

• application.yml

server:
  context-path: /web

spring:
  datasource:
    druid:
      # 數據庫訪問配置, 使用druid數據源
      # 數據源1 mysql
      mysql:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.jdbc.Driver
        url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&rewriteBatchedStatements=true&autoReconnect=true&failOverReadOnly=false&zeroDateTimeBehavior=convertToNull
        username: root
        password: 123456
      # 數據源2 oracle
      oracle: 
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: oracle.jdbc.driver.OracleDriver
        url: jdbc:oracle:thin:@localhost:1521:ORCL
        username: test
        password: 123456
        
      # 連接池配置
      initial-size: 5
      min-idle: 5
      max-active: 20
      # 連接等待超時時間
      max-wait: 30000
      # 配置檢測可以關閉的空閒連接間隔時間
      time-between-eviction-runs-millis: 60000
      # 配置連接在池中的最小生存時間
      min-evictable-idle-time-millis: 300000
      validation-query: select '1' from dual
      test-while-idle: true
      test-on-borrow: false
      test-on-return: false
      # 打開PSCache，並且指定每個連接上PSCache的大小
      pool-prepared-statements: true
      max-open-prepared-statements: 20
      max-pool-prepared-statement-per-connection-size: 20
      # 配置監控統計攔截的filters, 去掉後監控界面sql無法統計, 'wall'用於防火牆
      filters: stat,wall
      # Spring監控AOP切入點，如x.y.z.service.*,配置多個英文逗號分隔
      aop-patterns: com.springboot.servie.*
      
    
      # WebStatFilter配置
      web-stat-filter:
        enabled: true
        # 添加過濾規則
        url-pattern: /*
        # 忽略過濾的格式
        exclusions: '*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'
      
      # StatViewServlet配置 
      stat-view-servlet:
        enabled: true
        # 訪問路徑爲/druid時，跳轉到StatViewServlet
        url-pattern: /druid/*
        # 是否能夠重置數據
        reset-enable: false
        # 需要賬號密碼才能訪問控制檯
        login-username: druid
        login-password: druid123
        # IP白名單
        # allow: 127.0.0.1
        #　IP黑名單（共同存在時，deny優先於allow）
        # deny: 192.168.1.218
      
      # 配置StatFilter
      filter: 
        stat: 
          log-slow-sql: true 


     

• MysqlDatasourceConfig.java

package com.springboot.datasource;

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
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.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;

@Configuration
@MapperScan(basePackages = MysqlDatasourceConfig.PACKAGE, sqlSessionFactoryRef = "mysqlSqlSessionFactory")
public class MysqlDatasourceConfig {

	// mysqldao掃描路徑
	static final String PACKAGE = "com.springboot.mysqldao";
	// mybatis mapper掃描路徑
	static final String MAPPER_LOCATION = "classpath:mapper/mysql/*.xml";

	@Primary
	@Bean(name = "mysqldatasource")
	@ConfigurationProperties("spring.datasource.druid.mysql")
	public DataSource mysqlDataSource() {
		return DruidDataSourceBuilder.create().build();
	}

	@Bean(name = "mysqlTransactionManager")
	@Primary
	public DataSourceTransactionManager mysqlTransactionManager() {
		return new DataSourceTransactionManager(mysqlDataSource());
	}

	@Bean(name = "mysqlSqlSessionFactory")
	@Primary
	public SqlSessionFactory mysqlSqlSessionFactory(@Qualifier("mysqldatasource") DataSource dataSource)
			throws Exception {
		final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
		sessionFactory.setDataSource(dataSource);
		//如果不使用xml的方式配置mapper，則可以省去下面這行mapper location的配置。
		sessionFactory.setMapperLocations(
				new PathMatchingResourcePatternResolver().getResources(MysqlDatasourceConfig.MAPPER_LOCATION));
		return sessionFactory.getObject();
	}
}

• OracleDatasourceConfig

package com.springboot.datasource;

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;

@Configuration
@MapperScan(basePackages = OracleDatasourceConfig.PACKAGE, 
	sqlSessionFactoryRef = "oracleSqlSessionFactory")
public class OracleDatasourceConfig {
	
	// oracledao掃描路徑
	static final String PACKAGE = "com.springboot.oracledao"; 
	// mybatis mapper掃描路徑
	static final String MAPPER_LOCATION = "classpath:mapper/oracle/*.xml";
	
	@Bean(name = "oracledatasource")
	@ConfigurationProperties("spring.datasource.druid.oracle")
	public DataSource oracleDataSource() {
		return DruidDataSourceBuilder.create().build();
	}
	
	@Bean(name = "oracleTransactionManager")
    public DataSourceTransactionManager oracleTransactionManager() {
        return new DataSourceTransactionManager(oracleDataSource());
    }
 
    @Bean(name = "oracleSqlSessionFactory")
    public SqlSessionFactory oracleSqlSessionFactory(@Qualifier("oracledatasource") DataSource dataSource) throws Exception {
        final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
        sessionFactory.setDataSource(dataSource);
        //如果不使用xml的方式配置mapper，則可以省去下面這行mapper location的配置。
        sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver()
                .getResources(OracleDatasourceConfig.MAPPER_LOCATION));
        return sessionFactory.getObject();
    }
}

• StudentServiceImp.java

package com.springboot.service.impl;

import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.springboot.mysqldao.MysqlStudentMapper;
import com.springboot.oracledao.OracleStudentMapper;
import com.springboot.service.StudentService;

@Service("studentService")
public class StudentServiceImp implements StudentService{
	@Autowired
	private OracleStudentMapper oracleStudentMapper;
	@Autowired
	private MysqlStudentMapper mysqlStudentMapper;
	
	@Override
	public List<Map<String, Object>> getAllStudentsFromOralce() {
		return this.oracleStudentMapper.getAllStudents();
	}

	@Override
	public List<Map<String, Object>> getAllStudentsFromMysql() {
		return this.mysqlStudentMapper.getAllStudents();
	}

}

• StudentService.java

package com.springboot.service;

import java.util.List;
import java.util.Map;

public interface StudentService {
	List<Map<String, Object>> getAllStudentsFromOralce();
	List<Map<String, Object>> getAllStudentsFromMysql();
}

• 啓動文件Application

package com.springboot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


@SpringBootApplication
public class Application {
	
	public static void main(String[] args) {
		SpringApplication.run(Application.class,args);
	}
}

剩下一些未粘貼文件就是controller、seivice和mybatis的xml文件了這個簡單自行書寫，手動滑稽

如果需要交流下方評論見！！！

不對地方請多指教，感謝您閱讀我的博客謝謝