SpringBoot 之 Spring Boot 集成 Druid

目录

一、Druid 的介绍

二、添加依赖

三、配置

四、添加 druid 的支持类

五、监控

1.配置 servlet

2.配置 filter

3.其他参数配置

4.测试：

5.sql 监控配置

6.spring 监控配置

一、Druid 的介绍

  https://github.com/alibaba/druid/wiki/%E5%90%84%E7%A7%8D%E6%95%B0%E6%8D%AE%E5%BA%93%E8%BF%9 E%E6%8E%A5%E6%B1%A0%E5%AF%B9%E6%AF%94   中文文档： https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98  

二、添加依赖

            <dependency>               <groupId>com.alibaba</groupId>               <artifactId>druid</artifactId>               <version>1.0.26</version>           </dependency>  

三、配置

  spring.datasource.url=jdbc:mysql://localhost/spring_boot_demo?useUnicode=true&characterEncoding=utf-8 spring.datasource.username=root spring.datasource.password=123456 spring.datasource.driver-class-name=com.mysql.jdbc.Driver   spring.datasource.type=com.alibaba.druid.pool.DruidDataSource #spring.datasource.type=org.apache.tomcat.jdbc.pool.DataSource 注意： 关于 spring.datasource.type 的说明 旧版本不支持这个属性，1.3.x 开始支持，但是 1.4.0 不支持，1.4.1 重新支持。    

四、添加 druid 的支持类

package com.roncoo.education.util.configuration;

import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DatabaseDriver;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.alibaba.druid.pool.DruidDataSource;

@Configuration
public class DruidConfiguration {
	
	@ConditionalOnClass(DruidDataSource.class)
	@ConditionalOnProperty(name = "spring.datasource.type", havingValue = "com.alibaba.druid.pool.DruidDataSource", matchIfMissing = true)
	static class Druid extends DruidConfiguration {
		@Bean
		@ConfigurationProperties("spring.datasource.druid")
		public DruidDataSource dataSource(DataSourceProperties properties) {
			DruidDataSource druidDataSource = (DruidDataSource) properties.initializeDataSourceBuilder().type(DruidDataSource.class).build();
			DatabaseDriver databaseDriver = DatabaseDriver.fromJdbcUrl(properties.determineUrl());
			String validationQuery = databaseDriver.getValidationQuery();
			if (validationQuery != null) {
				druidDataSource.setValidationQuery(validationQuery);
			}
			return druidDataSource;
		}
	}
}
           

五、监控

1.配置 servlet

package com.roncoo.education.util.servlet;

import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;

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

/**
 *
 * @author 
 * 访问http://localhost:8080/druid会有druid的管理工具
 */
@WebServlet(urlPatterns = { "/druid/*" }, initParams = { @WebInitParam(name = "loginUsername", value = "roncoo"), @WebInitParam(name = "loginPassword", value = "roncoo") })
public class DruidStatViewServlet extends StatViewServlet {

	private static final long serialVersionUID = 1L;

}

           

2.配置 filter

package com.roncoo.education.util.filter;

import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;

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

/**
 * @author 
 */
@WebFilter(filterName = "druidWebStatFilter", urlPatterns = "/*", initParams = { @WebInitParam(name = "exclusions", value = "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*") })
public class DruidWebStatFilter extends WebStatFilter {

}
           

3.其他参数配置

#初始化连接大小
spring.datasource.druid.initial-size=8 #最小空闲连接数
spring.datasource.druid.min-idle=5 #最大连接数
spring.datasource.druid.max-active=10
#查询超时时间
spring.datasource.druid.query-timeout=6000
#事务查询超时时间
spring.datasource.druid.transaction-query-timeout=6000
#关闭空闲连接超时时间
spring.datasource.druid.remove-abandoned-timeout=1800
           

4.测试：

  http://localhost:8080/druid/index.html  

5.sql 监控配置

  #filter 类名 :stat,config,encoding,logging   spring.datasource.druid.filters= stat    

6.spring 监控配置

package com.roncoo.education;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.annotation.ImportResource;

@ServletComponentScan
@SpringBootApplication
@ImportResource(locations = { "classpath:druid-bean.xml" })
public class SpringBootDemo291Application {

	public static void main(String[] args) {
		SpringApplication.run(SpringBootDemo291Application.class, args);
	}
}
           

druid-bean.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop.xsd">

	<!-- 配置_Druid和Spring关联监控配置 -->
	<bean id="druid-stat-interceptor"
		class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor"></bean>

	<!-- 方法名正则匹配拦截配置 -->
	<bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut"
		scope="prototype">
		<property name="patterns">
			<list>
				<value>com.roncoo.education.mapper.*</value>
			</list>
		</property>
	</bean>

	<aop:config proxy-target-class="true">
		<aop:advisor advice-ref="druid-stat-interceptor"
			pointcut-ref="druid-stat-pointcut" />
	</aop:config>

</beans>