数据库阿里连接池 配置

　　用法：

web.xml:

 

<!-- druid 数据源，用于采集 web-jdbc 关联监控的数据 -->
<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>
  <init-param>
    <param-name>profileEnable</param-name>
    <param-value>true</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>DruidWebStatFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

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