First Check for version of postgresql in pom.xml, i used 9.4-1206-jdbc4 version it worked for me.

and modify applicationContext.xml as following

<bean id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource"

        destroy-method="close">

        <property name="driverClassName" value="org.postgresql.Driver" />

        <property name="url" value="jdbc:postgresql://localhost:5432/gapp" />// name of data base in pgadmin

        <property name="username" value="gapp" /> 

        <property name="password" value="abcd" />

        <property name="initialSize" value="1" />

</bean>

thanks

Check if the PostgreSQL service is running.

Check if the service is running at the port specified in applicationContext.xml.

Check if you have some anti-virus/firewall software blocking the port.

aphopha wrote:

Hello Dr. Sun,

I have changed jdk 1.7 to jdk 1.8 and also i have changed my postgresql version from 9.5 to 9.4 but still it show me the same error.

How should i solve this problem?

 

Thanks

I don't know. If you haven't fixed it yet, please bring your laptop to my office hours on Monday.