mybatis+druid+springboot 注解方式配置多个数据源

Posted 2020-12-27 你坚持了吗

1\数据库配置

#test数据源
spring.datasource.test.url=jdbc:mysql://*:3306/db?useUnicode=true&characterEncoding=utf-8
spring.datasource.test.username=root
spring.datasource.test.password=***
#线上环境
spring.datasource.online.url=jdbc:mysql://127.0.0.1:3306/db?useUnicode=true&characterEncoding=utf-8
spring.datasource.online.username=root
spring.datasource.online.password=***

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

# 下面为连接池的补充设置，应用到上面所有数据源中
# 初始化大小，最小，最大
spring.datasource.initialSize=5
spring.datasource.minIdle=1
spring.datasource.maxActive=50
# 配置获取连接等待超时的时间
spring.datasource.maxWait=60000
# 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
spring.datasource.timeBetweenEvictionRunsMillis=60000
# 配置一个连接在池中最小生存的时间，单位是毫秒
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
# 打开PSCache，并且指定每个连接上PSCache的大小
spring.datasource.poolPreparedStatements=false
#spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，‘wall‘用于防火墙
spring.datasource.filters=stat,wall,log4j
# 通过connectProperties属性来打开mergeSql功能；慢SQL记录
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

2\数据源配置

package com.test.config;


import javax.sql.DataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
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 com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;

import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;


@Configuration
@MapperScan(basePackages = "com.test.mapper.platform", sqlSessionTemplateRef  = "testSqlSessionTemplate")
public class PlatFormDataSourceConfig {

    @Bean(name = "testDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.test")
    @Primary
    public DataSource testDataSource() {
        return DruidDataSourceBuilder.create().build();
    }

    @Bean(name = "testSqlSessionFactory")
    @Primary
    public SqlSessionFactory testSqlSessionFactory(@Qualifier("testDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/platform/*.xml"));
        return bean.getObject();
    }

    @Bean(name = "testTransactionManager")
    @Primary
    public DataSourceTransactionManager testTransactionManager(@Qualifier("testDataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name = "testSqlSessionTemplate")
    @Primary
    public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("testSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}

3、service层

package com.test.service.test;

import com.test.mapper.platform.UserMapper;
import com.test.model.platform.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class test {
    @Autowired
    private  UserMapper userMapper;

    public test() {
    }


    public void testtest(){
        User user=userMapper.selectByPrimaryKey(1);
        System.out.println("///////////////////////////////");
        System.out.println(user.getId());
    }
}

4\

package com.test.controller;

import com.test.service.test.test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@RequestMapping(value = "/test")
@Controller
public class TestCase {
    @Autowired
    private test testtest;
    @RequestMapping(value = "/index",method = RequestMethod.GET)
    @ResponseBody
    public String index(){
         testtest.testtest();
         return "hello";
    }
}