一、MAVEN引入Druid依赖

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid-spring-boot-starter</artifactId>
     <version>1.1.10</version>
</dependency>

二、application.yml中添加数据源配置

spring:
  datasource:
    driver-class-name: oracle.jdbc.OracleDriver
    url: jdbc:oracle:thin:@127.0.0.1:1521:xe
    username: webagent
    password: webagent
    #fiters一定要放在datasource下，如果放到druid下，SQL监控不生效
    filters: stat, wall, log4j2
    druid:
      # 初始化大小，最小，最大
      initialSize: 5
      minIdle: 5
      maxActive: 20
      # 配置获取连接等待超时的时间
      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
      timeBetweenEvictionRunsMillis: 60000
      # 配置一个连接在池中最小生存的时间，单位是毫秒
      minEvictableIdleTimeMillis: 300000
      validationQuery: SELECT 1 FROM DUAL
      testWhileIdle: true
      testOnBorrow: false
      testOnReturn: false
      # 打开PSCache，并且指定每个连接上PSCache的大小
      poolPreparedStatements: true
      maxPoolPreparedStatementPerConnectionSize: 20
      # 合并多个DruidDataSource的监控数据
      useGlobalDataSourceStat: true
      aop-patterns: com.complain.*.service.*, com.complain.*.dao.*
      web-stat-filter:
        enabled: true
        url-pattern: /*
        exclusions: /druid/*,*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico
        session-stat-enable: true
        session-stat-max-count: 10
      stat-view-servlet:
        enabled: true
        url-pattern: /druid/*
        reset-enable: true
        login-username: admin
        login-password: admin

三、启用事务

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.DependsOn;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import javax.sql.DataSource;

@Configuration
public class DruidConfiguration {

    @Bean(name = "dataSource",initMethod = "init")
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource dateSource() {
        DruidDataSource dataSource = new DruidDataSource();
        return dataSource;
    }

    @Bean
    @DependsOn("dataSource")
    public DataSourceTransactionManager transactionManager(DataSource dataSource) {
        DataSourceTransactionManager transactionManager = new DataSourceTransactionManager();
        transactionManager.setDataSource(dataSource);
        return transactionManager;
    }
  
}