HikariCP

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>${org.springframework-version}</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-tx</artifactId>
    <version>${org.springframework-version}</version>
</dependency>
<dependency>
    <groupId>com.zaxxer</groupId>
    <artifactId>HikariCP</artifactId>
    <version>2.7.8</version>
</dependency>

root-context.xml
	<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
		<property name="driverClassName"
			value="net.sf.log4jdbc.sql.jdbcapi.DriverSpy"></property>
		<property name="jdbcUrl"
			value="jdbc:log4jdbc:oracle:thin:@localhost:1521:JAVA"></property>
		<property name="username" value="spring"></property>
		<property name="password" value="java"></property>
	</bean>

	<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource"
		destroy-method="close">
		<constructor-arg ref="hikariConfig" />
	</bean>


web.xml
	<filter>
		<filter-name>encoding</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>

	<filter-mapping>
		<filter-name>encoding</filter-name>
		<servlet-name>appServlet</servlet-name>
	</filter-mapping>