springboot 整合druid

springboot 整合 druid

Druid 是一个非常优秀的连接池，非常好的管理了数据库连接，可以实时监控

数据库连接对象和应用程序的数据库操作记录

1 、 jar 包导入

< dependency >

< groupId >com.alibaba</ groupId >

< artifactId >druid</ artifactId >

< version >1.0.26</ version >

</ dependency >

2 、 druid 配置

数据库连接配置加载

 

 

package com.abao.zhongtui.druidConfig;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;

@Data
@Configuration
@ConfigurationProperties(prefix = "spring.druid",ignoreInvalidFields = true)
public class DruidConfig {

    private String driverClassName;
    private String jdbcUrl;
    private String jdbcUrl1;
    private String username;
    private String password;
    private int maxActive;
    private int minIdle;
    private int initialSize;
    private Long timeBetweenEvictionRunsMillis;
    private Long minEvictableIdleTimeMillis;
    private String validationQuery;
    private boolean testWhileIdle;
    private boolean testOnBorrow;
    private boolean testOnReturn;
    private boolean poolPreparedStatements;
    private Integer maxPoolPreparedStatementPerConnectionSize;
    private String filters;
    private String connectionProperties;

    @Bean(destroyMethod = "close",initMethod = "init")
    //这里需要注意默认是读取的application.properties配置文件。
    //如果你的配置文件不在默认文件中。
    //需要在类中引入配置文件例如：@PropertySource(value = "classpath:druid.properties")
    public DataSource getDs1(){
        DruidDataSource druidDataSource = new DruidDataSource();
        druidDataSource.setDriverClassName(driverClassName);
        druidDataSource.setUrl(jdbcUrl);
        druidDataSource.setUsername(username);
        druidDataSource.setPassword(password);
        druidDataSource.setMaxActive(maxActive);
        druidDataSource.setInitialSize(initialSize);
        druidDataSource.setTimeBetweenConnectErrorMillis(timeBetweenEvictionRunsMillis);
        druidDataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        druidDataSource.setValidationQuery(validationQuery);
        druidDataSource.setTestWhileIdle(testWhileIdle);
        druidDataSource.setTestOnBorrow(testOnBorrow);
        druidDataSource.setTestOnReturn(testOnReturn);
        druidDataSource.setPoolPreparedStatements(poolPreparedStatements);
        druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);

        try {
            druidDataSource.setFilters(filters);
        } catch (SQLException e) {
            e.printStackTrace();
        }

        return druidDataSource;
    }

//    @Bean(destroyMethod = "close",initMethod = "init")
    //这里需要注意默认是读取的application.properties配置文件。
    //如果你的配置文件不在默认文件中。
    //需要在类中引入配置文件例如：@PropertySource(value = "classpath:druid.properties")
    public DataSource getDs2(){
        DruidDataSource druidDataSource = new DruidDataSource();
        druidDataSource.setDriverClassName(driverClassName);
        druidDataSource.setUrl(jdbcUrl1);
        druidDataSource.setUsername(username);
        druidDataSource.setPassword(password);
        druidDataSource.setMaxActive(maxActive);
        druidDataSource.setInitialSize(initialSize);
        druidDataSource.setTimeBetweenConnectErrorMillis(timeBetweenEvictionRunsMillis);
        druidDataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        druidDataSource.setValidationQuery(validationQuery);
        druidDataSource.setTestWhileIdle(testWhileIdle);
        druidDataSource.setTestOnBorrow(testOnBorrow);
        druidDataSource.setTestOnReturn(testOnReturn);
        druidDataSource.setPoolPreparedStatements(poolPreparedStatements);
        druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);

        try {
            druidDataSource.setFilters(filters);
        } catch (SQLException e) {
            e.printStackTrace();
        }

        return druidDataSource;
    }

//    @Bean
//    public DataSource dynamicDataSource() {
//        Map<Object, Object> targetDataSources = new HashMap<>();
//        DataSource ds1 = getDs1();
//        targetDataSources.put("ds1", ds1);
//        targetDataSources.put("ds2", getDs2());
//        DynamicDataSource dynamicDataSource = new DynamicDataSource();
//        dynamicDataSource.setTargetDataSources(targetDataSources);
//        dynamicDataSource.setDefaultTargetDataSource(ds1);
//
//        DynamicDataSourceContextHolder.dataSourceIds.add("ds1");
//        DynamicDataSourceContextHolder.dataSourceIds.add("ds2");
//        return dynamicDataSource;
//    }

    /**
     * 配置访问druid监控
     * @return
     */
    @Bean
    public ServletRegistrationBean druidStateViewServlet(){
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*");
        //初始化参数initParams
        //添加白名单
        servletRegistrationBean.addInitParameter("allow","");
        //添加ip黑名单
        servletRegistrationBean.addInitParameter("deny","192.168.16.111");
        //登录查看信息的账号密码
        //http://localhost:8088/druid/login.html
        servletRegistrationBean.addInitParameter("loginUsername","admin");
        servletRegistrationBean.addInitParameter("loginPassword","123");
        //是否能够重置数据
        servletRegistrationBean.addInitParameter("resetEnable","false");
        return servletRegistrationBean;
    }

    /**
     * 过滤不需要监控的后缀
     * @return
     */
    @Bean
    public FilterRegistrationBean druidStatFilter(){
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
        //添加过滤规则
        filterRegistrationBean.addUrlPatterns("/*");
        //添加不需要忽略的格式信息
        filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        return filterRegistrationBean;
    }
}

读取application.properties配置文件中以spring.druid作为前缀的配置属性值。

spring.datasource.url=jdbc:mysql://localhost:3306/consult?useUnicode=true&characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

spring.datasource.max-idle=10
spring.datasource.max-wait=10000
spring.datasource.min-idle=5
spring.datasource.initial-size=5
spring.datasource.validation-query=SELECT 1
spring.datasource.test-on-borrow=false
spring.datasource.test-while-idle=true
spring.datasource.time-between-eviction-runs-millis=18800
spring.datasource.jdbc-interceptors=ConnectionState;SlowQueryReport(threshold=0)

#连接池的配置信息
## 初始化大小，最小，最大
spring.druid.jdbcUrl=jdbc:mysql://127.0.0.1:3306/consult?useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT
spring.druid.jdbcUrl1=jdbc:mysql://192.168.16.101:3306/consult
spring.druid.username=root
spring.druid.password=123456
spring.druid.driver-class-name=com.mysql.cj.jdbc.Driver
spring.druid.initialSize=2
spring.druid.minIdle=2
spring.druid.maxActive=2
## 配置获取连接等待超时的时间
spring.druid.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.druid.timeBetweenEvictionRunsMillis=60000
# 配置一个连接在池中最小生存的时间，单位是毫秒
spring.druid.minEvictableIdleTimeMillis=300000
spring.druid.validationQuery=SELECT 1 FROM DUAL
spring.druid.testWhileIdle=true
spring.druid.testOnBorrow=false
spring.druid.testOnReturn=false
spring.druid.poolPreparedStatements=true
spring.druid.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.druid.filters=stat,wall
# 通过connectProperties属性来打开mergeSql功能；慢SQL记录
spring.druid.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

登录： http://localhost:8088/druid/sql.html

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