druid use and configuration

First, add a dependency: 

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.9</version>
</dependency>

Then configure application.yml 

　　

type: com.alibaba.druid.pool.DruidDataSource 

configuration connection pool # 
# initial size, minimum, maximum 
initialSize:. 3 
minIdle:. 5 
for maxActive: 20 is 

# configuration obtaining connection waiting timeout time 
maxWait: 30000 
# intervals the frequency of such a detector detecting the connection needs to close idle milliseconds 
timeBetweenEvictionRunsMillis: 60000 

# configure a minimum connection time survival pool milliseconds 
minEvictableIdleTimeMillis: 300000 
validationQuery: the SELECT the FROM. 1 the DUAL 
testWhileIdle: to true 
testOnBorrow: to false 
testOnReturn: to false 

# open PSCache, and specifies the size of each connection PSCache 
poolPreparedStatements: to true 
maxPoolPreparedStatementPerConnectionSize: 20 is 
# configure the monitoring statistics intercepted filters, after removing the monitoring interface can not sql statistics, 'wall' firewalls 
Filters: STAT, Wall 
# properties by connectProperties open mergeSql functions; slow SQL record
connectionProperties.druid.stat.mergeSql.true;druid.stat.slowSqlMillis: 10000

 

/ ** 
* Druid's representative statistics. 
* Html page provides monitoring information display 
* provide monitoring information API JSON 
* 
* / 
the @WebServlet (

        urlPatterns = { "/ druid / * "}, // monitor page access path 
        the initParams = { 
                @WebInitParam (name = "loginUsername", value = "ADMIN"), // Login 
                @WebInitParam (name = "loginPassword", value = "qwert"), // password 
                @WebInitParam (name = "resetEnable", value = "false") // reset button monitoring-page (when set to false monitoring page reset button does not work) 
    } 
) 
public class DruidStatViewServlet the extends StatViewServlet { 
}