Servlet整合Druid连接池

druid配置(druid.properties)

#druid配置文件
#驱动
driverClassName=com.mysql.jdbc.Driver
#url
url=jdbc:mysql://127.0.0.1:3306/cms?useUnicode=true&characterEncoding=utf8&useSSL=true
#用户名
username=root
#密码
password=root
#连接池初始化大小
initialSize=10
#活动链接
maxActive=10
#最小连接数
minIdle=10
#使用的内置过滤器  若不配置 则不会统计SQL执行
filters=stat

JDBC连接池

/**
 * Druid连接池
 * @author tangpengfei
 */
public class DruidUtil {
	
	static DruidDataSource dataSource;
	
	static {
		Properties prop = new Properties();
		try {
			prop.load(DruidUtil.class.getClassLoader().getResourceAsStream("druid.properties"));
			dataSource = (DruidDataSource)DruidDataSourceFactory.createDataSource(prop);
			//dataSource.addFilters("stat,log4j,wall");
		} catch (IOException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	public static Connection getConn() {
		try {
			return dataSource.getConnection();
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return null;
	}
 
}

web.xml配置

 <servlet>
  	<servlet-name>StatViewServlet</servlet-name>
  	<servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
  	<init-param>  
	<!-- 允许清空统计数据 -->  
	<param-name>resetEnable</param-name>  
	<param-value>true</param-value>  
    </init-param>  
    <init-param>  
	<!-- 用户名 -->  
	<param-name>loginUsername</param-name>  
	<param-value>admin</param-value>  
    </init-param>  
    <init-param>  
	<!-- 密码 -->  
	<param-name>loginPassword</param-name>  
	<param-value>admin</param-value>  
    </init-param>  
  </servlet>
  
  <servlet-mapping>
  	<servlet-name>StatViewServlet</servlet-name>
  	<url-pattern>/druid/*</url-pattern>
  </servlet-mapping>