<dependency>

   <groupId>org.mybatis.spring.boot</groupId>

   <artifactId>mybatis-spring-boot-starter</artifactId>

   <version>1.3.2</version>

</dependency>

package com.example.demo.config;

import com.alibaba.druid.pool.DruidDataSource;

import org.apache.ibatis.session.SqlSessionFactory;

import org.mybatis.spring.SqlSessionFactoryBean;

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

import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;

/**

 * @author canger

 * @Deseription

 * @create 2019/2/25 16:30

 **/

@Configuration

public class MybatisConfig {

    @Autowired

    private DataSourceProperties dataSourceProperties;

    @Bean(name = "dataSource")

    public DataSource dataSource() {

        DruidDataSource dataSource = new DruidDataSource();

        dataSource.setUrl(dataSourceProperties.getUrl());

        System.out.println(dataSourceProperties.getUrl());

        dataSource.setDriverClassName(dataSourceProperties.getDriverClassName());

        dataSource.setUsername(dataSourceProperties.getUsername());

        dataSource.setPassword(dataSourceProperties.getPassword());

        return dataSource;

    }

    public SqlSessionFactory sqlSessionFactory() throws Exception {

        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();

        sqlSessionFactoryBean.setDataSource(dataSource());

        return sqlSessionFactoryBean.getObject();

    }

}