spring boot +druid数据库连接池配置

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;

import org.apache.log4j.Logger;

import org.mybatis.spring.SqlSessionFactoryBean;

import org.mybatis.spring.annotation.MapperScan;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.context.properties.ConfigurationProperties;

import org.springframework.boot.web.servlet.ServletComponentScan;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.ComponentScan;

import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import org.springframework.transaction.PlatformTransactionManager;

import com.alibaba.druid.pool.DruidDataSource;

@EnableAutoConfiguration

@SpringBootApplication

@ComponentScan

@ServletComponentScan

@MapperScan("com.yzf.mapper")

public class SpringbootMybatisApplication {

    private static Logger logger = Logger.getLogger(SpringbootMybatisApplication.class);

    //DataSource配置

    @Bean

    @ConfigurationProperties(prefix="spring.datasource")

    public DataSource dataSource() {

        //return new org.apache.tomcat.jdbc.pool.DataSource();

         DruidDataSource druidDataSource = new DruidDataSource();

         return druidDataSource;

    }

  //提供SqlSeesion

    @Bean

    public SqlSessionFactory sqlSessionFactoryBean() throws Exception {

        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();

        sqlSessionFactoryBean.setDataSource(dataSource());

        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();

        sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath:/mybatis/*.xml"));

        return sqlSessionFactoryBean.getObject();

    }

    @Bean

    public PlatformTransactionManager transactionManager() {

        return new DataSourceTransactionManager(dataSource());

    }

    public static void main(String[] args) {

        SpringApplication.run(SpringbootMybatisApplication.class, args);

    }

}

# 数据库访问配置

# 主数据源，默认的

spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

spring.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.datasource.url=jdbc:mysql://localhost:3306/db_shiro

spring.datasource.username=root

spring.datasource.password=root

# 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=5

spring.datasource.maxActive=20

# 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=true

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

# 合并多个DruidDataSource的监控数据

#spring.datasource.useGlobalDataSourceStat=true

package com.yzf.servlet;

import javax.servlet.annotation.WebInitParam;

import com.alibaba.druid.support.http.StatViewServlet;

import javax.servlet.annotation.WebServlet;  

/**

 * web.xml中配置

 * <!-- 数据库监控 start -->

    <servlet>

        <servlet-name>DruidStatView</servlet-name>

        <!-- 展示监控页面的servlet -->

        <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>

        <init-param>

            <param-name>profileEnable</param-name>

            <param-value>true</param-value>

        </init-param>

        <init-param>

            <param-name>resetEnable</param-name>

            <param-value>false</param-value>

        </init-param>

        <!-- 可选项  登陆的用户名和密码 -->

        <init-param>

            <param-name>loginUsername</param-name>

            <param-value>druid</param-value>

        </init-param>

        <init-param>

            <param-name>loginPassword</param-name>

            <param-value>druid</param-value>

        </init-param>

    </servlet>

    <servlet-mapping>

        <servlet-name>DruidStatView</servlet-name>

        <url-pattern>/druid/*</url-pattern>

    </servlet-mapping>

 *

 * @author luozuzu

 *

 */

@WebServlet(urlPatterns = "/druid/*",

initParams={

        @WebInitParam(name="allow",value="192.168.16.110,127.0.0.1"),// IP白名单 (没有配置或者为空，则允许所有访问)

        @WebInitParam(name="deny",value="192.168.16.111"),// IP黑名单 (存在共同时，deny优先于allow)

        @WebInitParam(name="loginUsername",value="admin"),// 用户名

        @WebInitParam(name="loginPassword",value="123"),// 密码

        @WebInitParam(name="resetEnable",value="false")// 禁用HTML页面上的“Reset All”功能

})

public class DruidStatViewServlet extends StatViewServlet {

    private static final long serialVersionUID = 1L;

}  

package com.yzf.servlet;

import javax.servlet.annotation.WebFilter;

import javax.servlet.annotation.WebInitParam;

import com.alibaba.druid.support.http.WebStatFilter;

@WebFilter(filterName="druidWebStatFilter",urlPatterns="/*",

initParams={

         @WebInitParam(name="exclusions",value="*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*")// 忽略资源

 }

)

public class DruidStatFilter extends WebStatFilter{  

}