springBoot（12）：集成Druid
阿新 • • 發佈：2017-06-20
springboot 集成druid
一、添加依賴
<!--mybatis-開始--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.2.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId >druid</artifactId> <version>1.0.26</version> </dependency> <!--mybatis-結束-->
二、配置application.properties
##################################mysql數據源配置################################## spring.datasource.url=jdbc:mysql://localhost/db_test?useUnicode=true&characterEncoding=utf-8 spring.datasource.username=root spring.datasource.password=123456 spring.datasource.driver-class-name=com.mysql.jdbc.Driver #druid連接池 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
註意：其實到這裏就可以正常使用了，但是如果想使用druid裏的諸多屬性，則需要添加支持類
三、添加druid的支持類
package com.example.demo.utils.configuration.druid;
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;
/**
* druid的支持類
* @Author: 我愛大金子
* @Description: druid的支持類
* @Date: Created in 12:48 2017/6/20
*/
@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;
}
}
}配置application.properties：
##################################mysql數據源配置################################## spring.datasource.url=jdbc:mysql://localhost/db_test?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 #初始化連接大小 spring.datasource.druid.initial-size=8 #最小空閑連接數 spring.datasource.druid.min-idle=5 #最大連接數 spring.datasource.druid.max-active=10 #查詢超時時間 spring.datasource.druid.query-timeout=6000 #事務查詢超時時間 spring.datasource.druid.transaction-query-timeout=6000 #關閉空閑連接超時時間 spring.datasource.druid.remove-abandoned-timeout=1800
四、監控
4.1、配置servlet
package com.example.demo.utils.configuration.druid;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
import com.alibaba.druid.support.http.StatViewServlet;
/**
* 監控-配置servlet
* @Author: 我愛大金子
* @Description: 監控-servlet
* @Date: Created in 12:50 2017/6/20
*/
@WebServlet(urlPatterns = { "/druid/*" }, initParams =
{ @WebInitParam(name = "loginUsername", value = "liuy"),
@WebInitParam(name = "loginPassword", value = "123456") })
public class DruidStatViewServlet extends StatViewServlet {
private static final long serialVersionUID = 1L;
}4.2、配置filter
package com.example.demo.utils.configuration.druid;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
import com.alibaba.druid.support.http.WebStatFilter;
/**
* 監控-配置filter
* @Author: 我愛大金子
* @Description: 描述
* @Date: Created in 12:51 2017/6/20
*/
@WebFilter(filterName = "druidWebStatFilter", urlPatterns = "/*", initParams = { @WebInitParam(name = "exclusions", value = "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*") })
public class DruidWebStatFilter extends WebStatFilter {
}測試：訪問http://localhost:9090/druid/index.html
註意：此時還沒有SQL監控與spring監控。
4.3、配置sql監控與spring監控
在application.properties文件中配置sql監控
#sql監控配置:filter類名:stat,config,encoding,logging spring.datasource.druid.filters=stat
spring監控配置
第一步：新建一個配置文件，如：druid-bean.xml
<?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關聯監控配置 -->
<bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor"></bean>
<!-- 方法名正則匹配攔截配置 -->
<bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">
<property name="patterns">
<list>
<value>com.example.demo.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>第二步：在啟動類上加載druid-bean.xml文件
package com.example.demo;
import com.example.demo.utils.filter.CustomFilter;
import com.example.demo.utils.listener.CustomListener;
import com.example.demo.utils.servlet.CustomServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ImportResource;
import javax.servlet.DispatcherType;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import java.util.EnumSet;
@ServletComponentScan
@SpringBootApplication
@ImportResource(locations = { "classpath:druid-bean.xml" })
public class SpringbootDemo27Application {
public static void main(String[] args) {
SpringApplication.run(SpringbootDemo27Application.class, args);
}
}重啟服務，報異常：
解決：添加aop依賴
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency>
重啟服務
本文出自 “我愛大金子” 博客，請務必保留此出處http://1754966750.blog.51cto.com/7455444/1940176
springBoot（12）：集成Druid