< bean name = "transactionManager" class ="org.springframework.jdbc.datasource.DataSourceTransactionManager" >   
  < property name = "dataSource" ref = "dataSource" ></ property > 
   </ bean > 
  < bean id = "propertyConfigurer" class ="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" >  
    < property name = "locations" >  
      < list >  
         < value > /WEB-INF/classes/dbconfig.properties </ value >  
      </ list >  
    </ property >  
  </ bean > 

<!-- 阿里 druid 數(shù)據(jù)庫連接池 --> 
 < bean id = "dataSource" class = "com.alibaba.druid.pool.DruidDataSource"destroy-method = "close" >  
    <!-- 數(shù)據(jù)庫基本信息配置 --> 
    < property name = "url" value = "${url}" />  
    < property name = "username" value = "${username}" />  
    < property name = "password" value = "${password}" />  
    < property name = "driverClassName" value = "${driverClassName}" />  
    < property name = "filters" value = "${filters}" />  
    <!-- 最大并發(fā)連接數(shù) --> 
    < property name = "maxActive" value = "${maxActive}" /> 
    <!-- 初始化連接數(shù)量 --> 
    < property name = "initialSize" value = "${initialSize}" /> 
    <!-- 配置獲取連接等待超時的時間 --> 
    < property name = "maxWait" value = "${maxWait}" /> 
    <!-- 最小空閑連接數(shù) --> 
    < property name = "minIdle" value = "${minIdle}" />  
    <!-- 配置間隔多久才進(jìn)行一次檢測，檢測需要關(guān)閉的空閑連接，單位是毫秒 --> 
    < property name = "timeBetweenEvictionRunsMillis" value ="${timeBetweenEvictionRunsMillis}" /> 
    <!-- 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 ="${minEvictableIdleTimeMillis}" />  
    < property name = "validationQuery" value = "${validationQuery}" />  
    < property name = "testWhileIdle" value = "${testWhileIdle}" />  
    < property name = "testOnBorrow" value = "${testOnBorrow}" />  
    < property name = "testOnReturn" value = "${testOnReturn}" />  
    < property name = "maxOpenPreparedStatements" value ="${maxOpenPreparedStatements}" /> 
    <!-- 打開 removeAbandoned 功能 --> 
    < property name = "removeAbandoned" value = "${removeAbandoned}" /> 
    <!-- 1800 秒，也就是 30 分鐘 --> 
    < property name = "removeAbandonedTimeout" value ="${removeAbandonedTimeout}" /> 
    <!-- 關(guān)閉 abanded 連接時輸出錯誤日志 -->   
    < property name = "logAbandoned" value = "${logAbandoned}" /> 
 </ bean > 

url: jdbc:mysql:// localhost :3306/ newm 
driverClassName: com.mysql.jdbc.Driver 
username: root 
password: root 
filters: stat 
maxActive: 20 
initialSize: 1 
maxWait: 60000 
minIdle: 10 
maxIdle: 15 
timeBetweenEvictionRunsMillis: 60000 
minEvictableIdleTimeMillis: 300000 
validationQuery: SELECT 'x' 
testWhileIdle: true 
testOnBorrow: false 
testOnReturn: false 
maxOpenPreparedStatements: 20 
removeAbandoned: true 
removeAbandonedTimeout: 1800 
logAbandoned: true 

<!-- 連接池 啟用 Web 監(jiān)控統(tǒng)計功能  start--> 
 < 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 > 
 <!-- 連接池 啟用 Web 監(jiān)控統(tǒng)計功能  end-->