servlet整合druid
2019-07-27 本文已影响0人
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servlet整合druid
druid.properties文件
#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
DruidUtil.java
package com.mrt.util;
import java.io.IOException;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.pool.DruidDataSourceFactory;
/**
* 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配置文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>servlet_druid</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<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>
</web-app>