Druid正式版本下載地址:http://repo1.maven.org/maven2/com/alibaba/druid/
Druid是一個開源項目,源碼託管在github上:https://github.com/alibaba/druid
Druid 0.1.18之後版本都發布到maven中央倉庫,你只需要在項目的pom.xml中加上dependency就可以了
下面就開始相關的配置
第一步:在pom.xml文件上添加對應的dependency
- <dependency>
- <groupId>com.alibaba</groupId>
- <artifactId>druid</artifactId>
- <version>${druid-version}</version>
- </dependency></span>
第二步:對數據源的配置
- <?xml version="1.0" encoding="UTF-8"?>
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xmlns:context="http://www.springframework.org/schema/context"
- xmlns:aop="http://www.springframework.org/schema/aop"
- xmlns:tx="http://www.springframework.org/schema/tx"
- xsi:schemaLocation="http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
- http://www.springframework.org/schema/aop
- http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
- http://www.springframework.org/schema/tx
- http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
- http://www.springframework.org/schema/context
- http://www.springframework.org/schema/context/spring-context-3.0.xsd">
- <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init"
- destroy-method="close">
- <!-- 基本屬性 url、user、password -->
- <property name="driverClassName" value="oracle.jdbc.OracleDriver" />
- <property name="url" value="jdbc:oracle:thin:@192.168.102.93:1521:mydb1" />
- <property name="username" value="my_v31" />
- <property name="password" value="my_v31" />
- <!-- 配置初始化大小、最小、最大 -->
- <property name="initialSize" value="1" />
- <property name="minIdle" value="1" />
- <property name="maxActive" value="20" />
- <!-- 配置獲取連接等待超時的時間 -->
- <property name="maxWait" value="60000" />
- <!-- 配置間隔多久才進行一次檢測,檢測需要關閉的空閒連接,單位是毫秒 -->
- <property name="timeBetweenEvictionRunsMillis" value="60000" />
- <!-- 配置一個連接在池中最小生存的時間,單位是毫秒 -->
- <property name="minEvictableIdleTimeMillis" value="300000" />
- <!--
- 用來檢測連接是否有效的sql,要求是一個查詢語句。
- 如果validationQuery爲null,testOnBorrow、testOnReturn、
- testWhileIdle都不會其作用
- -->
- <property name="validationQuery" value="SELECT 1 FROM DUAL" />
- <property name="testWhileIdle" value="true" />
- <property name="testOnBorrow" value="false" />
- <property name="testOnReturn" value="false" />
- <!--
- 打開PSCache,並且指定每個連接上PSCache的大小
- 如果用Oracle,則把poolPreparedStatements配置爲true,mysql可以配置爲false
- -->
- <property name="poolPreparedStatements" value="true" />
- <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />
- <!-- 配置監控統計攔截的filters,去掉後監控界面sql無法統計 -->
- <property name="filters" value="stat,wall,log4j" />
- <!--
- 如果配置了proxyFilters,此配置可以不配置
- druid.stat.mergeSql=true 合併執行的相同sql,避免因爲參數不同而統計多條sql語句
- druid.stat.slowSqlMillis=10000 用來配置SQL慢的標準,執行時間超過slowSqlMillis的就是慢
- <property name="connectionProperties" value="druid.stat.mergeSql=true;druid.stat.slowSqlMillis=10000" />
- -->
- <!-- 監控統計攔截的filters -->
- <!-- 並在filters屬性中配置了log4j -->
- <property name="proxyFilters">
- <list>
- <ref bean="stat-filter" />
- <ref bean="log-filter" />
- </list>
- </property>
- </bean>
- <!-- 慢SQL記錄-->
- <bean id="stat-filter" class="com.alibaba.druid.filter.stat.StatFilter">
- <property name="mergeSql" value="true" />
- <property name="slowSqlMillis" value="10000" />
- <property name="logSlowSql" value="true" />
- </bean>
- <bean id="log-filter" class="com.alibaba.druid.filter.logging.Log4jFilter">
- <!-- <property name="resultSetLogEnabled" value="false" /> -->
- <!-- <property name="statementExecutableSqlLogEnable" value="true" /> -->
- </bean>
- <!-- 配置druid監控spring jdbc -->
- <bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor" />
- <bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">
- <property name="patterns">
- <list>
- <value>com.XXX.stat.service.*</value>
- <value>com.XXX.stat.dao.*</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>
第三步:儘管Druid說明只需要配置數據庫中的url地址就可以幫我們自動來匹配driverClassName,但是發現如果不配置這個,日誌中總是有一些警告,所以就配置了一下。官網提供了一下他自己的driverClassName:
- jdbc:derby:=org.apache.derby.jdbc.EmbeddedDriver
- jdbc:mysql:=com.mysql.jdbc.Driver
- jdbc:log4jdbc:=net.sf.log4jdbc.DriverSpy
- jdbc:oracle:=oracle.jdbc.driver.OracleDriver
- jdbc:microsoft:=com.microsoft.jdbc.sqlserver.SQLServerDriver
- jdbc:jtds:=net.sourceforge.jtds.jdbc.Driver
- jdbc:postgresql:=org.postgresql.Driver
- jdbc:fake:=com.alibaba.druid.mock.MockDriver
- jdbc:hsqldb:=org.hsqldb.jdbcDriver
- jdbc:db2:=COM.ibm.db2.jdbc.app.DB2Driver
- jdbc:sqlite:=org.sqlite.JDBC
- jdbc:ingres:=com.ingres.jdbc.IngresDriver
- jdbc:h2:=org.h2.Driver
- jdbc:mckoi:=com.mckoi.JDBCDriver
第四步:說一下web.xml中的配置參數
- <filter>
- <filter-name>DruidWebStatFilter</filter-name>
- <filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>
- <init-param>
- <!-- 經常需要排除一些不必要的url,比如.js,/jslib/等等。配置在init-param中 -->
- <param-name>exclusions</param-name>
- <param-value>*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*</param-value>
- </init-param>
- <!-- 缺省sessionStatMaxCount是1000個。你可以按需要進行配置 -->
- <init-param>
- <param-name>sessionStatMaxCount</param-name>
- <param-value>1000</param-value>
- </init-param>
- <!-- druid 0.2.7版本開始支持profile,配置profileEnable能夠監控單個url調用的sql列表 -->
- <init-param>
- <param-name>profileEnable</param-name>
- <param-value>true</param-value>
- </init-param>
- <init-param>
- <param-name>principalSessionName</param-name>
- <param-value>users.username</param-value>
- </init-param>
- <!-- 你可以關閉session統計功能
- <init-param>
- <param-name>sessionStatEnable</param-name>
- <param-value>true</param-value>
- </init-param> -->
- </filter>
- <servlet>
- <servlet-name>DruidStatView</servlet-name>
- <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
- <!--
- deny優先於allow,如果在deny列表中,就算在allow列表中,也會被拒絕。
- 如果allow沒有配置或者爲空,則允許所有訪問
- -->
- <init-param>
- <param-name>allow</param-name>
- <param-value>128.242.127.1/24,127.0.0.1</param-value>
- </init-param>
- <init-param>
- <param-name>deny</param-name>
- <param-value>192.168.0.127</param-value>
- </init-param>
- <!-- 在StatViewSerlvet輸出的html頁面中,有一個功能是Reset All,執行這個操作之後,會導致所有計數器清零,重新計數 -->
- <span style="white-space:pre"> </span><init-param>
- <span style="white-space:pre"> </span><param-name>resetEnable</param-name>
- <span style="white-space:pre"> </span><param-value>false</param-value>
- <span style="white-space:pre"> </span></init-param>
- <span style="white-space:pre"> </span><!-- 用戶名和密碼 -->
- <span style="white-space:pre"> </span><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>