druid连接池配置

基于纯Java代码使用：

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package demo.test;   import java.io.InputStream; import java.sql.Connection; import java.sql.SQLException; import java.util.Properties;   import javax.sql.DataSource;   import com.alibaba.druid.pool.DruidDataSourceFactory;     public class DBUtil {       private static DataSource ds = null;             static {         try{             InputStream in = DBUtil.class.getClassLoader()                                    .getResourceAsStream("ds.properties");             Properties props = new Properties();             props.load(in);             ds = DruidDataSourceFactory.createDataSource(props);         }catch(Exception ex){             ex.printStackTrace();         }     }           public static Connection openConnection() throws SQLException{         return ds.getConnection();     }         }

 ds.properties内容：　

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driverClassName = oracle.jdbc.driver.OracleDriver url = jdbc:oracle:thin:@127.0.0.1:1521:ORCL username = ****** password = ******   initialSize = 5 maxActive = 10 minIdle = 3 maxWait = 60000 removeAbandoned = true removeAbandonedTimeout = 180 timeBetweenEvictionRunsMillis = 60000 minEvictableIdleTimeMillis = 300000 validationQuery = SELECT 1 FROM DUAL testWhileIdle = true  testOnBorrow = false testOnReturn = false poolPreparedStatements = true maxPoolPreparedStatementPerConnectionSize = 50 filters = stat

　基于Spring的配置：　

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<bean id="druidDataSource" class="com.alibaba.druid.pool.DruidDataSource"         init-method="init" destroy-method="close">         <!-- 数据库基本信息配置 -->         <property name="driverClassName" value="${oracle.driver}" />         <property name="url" value="${oracle.url}" />         <property name="username" value="${oracle.username}" />         <property name="password" value="${oracle.password}" />                <!-- 初始化连接数量 -->         <property name="initialSize" value="${druid.initialSize}" />         <!-- 最大并发连接数 -->         <property name="maxActive" value="${druid.maxActive}" />         <!-- 最大空闲连接数 -->         <property name="maxIdle" value="${druid.maxIdle}" />         <!-- 最小空闲连接数 -->         <property name="minIdle" value="${druid.minIdle}" />         <!-- 配置获取连接等待超时的时间 -->              <property name="maxWait" value="${druid.maxWait}" />         <!-- 超过时间限制是否回收 -->         <property name="removeAbandoned" value="${druid.removeAbandoned}" />         <!-- 超过时间限制多长； -->         <property name="removeAbandonedTimeout" value="${druid.removeAbandonedTimeout}" />         <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->         <property name="timeBetweenEvictionRunsMillis" value="${druid.timeBetweenEvictionRunsMillis}" />         <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->         <property name="minEvictableIdleTimeMillis" value="${druid.minEvictableIdleTimeMillis}" />         <!-- 用来检测连接是否有效的sql，要求是一个查询语句-->         <property name="validationQuery" value="${druid.validationQuery}" />         <!-- 申请连接的时候检测 -->         <property name="testWhileIdle" value="${druid.testWhileIdle}" />         <!-- 申请连接时执行validationQuery检测连接是否有效，配置为true会降低性能 -->         <property name="testOnBorrow" value="${druid.testOnBorrow}" />         <!-- 归还连接时执行validationQuery检测连接是否有效，配置为true会降低性能  -->         <property name="testOnReturn" value="${druid.testOnReturn}" />         <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->         <property name="poolPreparedStatements" value="${druid.poolPreparedStatements}" />             <property name="maxPoolPreparedStatementPerConnectionSize" value="${druid.maxPoolPreparedStatementPerConnectionSize}" />         <!--属性类型是字符串，通过别名的方式配置扩展插件，常用的插件有：                                 监控统计用的filter:stat                 日志用的filter:log4j                防御SQL注入的filter:wall -->         <property name="filters" value="${druid.filters}" />           </bean>

　启用Web监控统计功能需要在Web应用的web.xml中加入以下内容：　

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<filter>       <filter-name>DruidWebStatFilter</filter-name>       <filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>       <init-param>        <param-name>exclusions</param-name>        <param-value>*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*</param-value>       </init-param> </filter> <filter-mapping>      <filter-name>DruidWebStatFilter</filter-name>      <url-pattern>/*</url-pattern> </filter-mapping> <servlet>     <servlet-name>DruidStatView</servlet-name>     <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>   </servlet>    <servlet-mapping>     <servlet-name>DruidStatView</servlet-name>     <url-pattern>/druid/*</url-pattern> </servlet-mapping>

 访问监控页面：http://ip：port/projectName/druid/index.html

 

http://my.oschina.net/liu13430/blog/312188