linking the java project to MySQL database

I'm beginner in programming so please be patient (and for my english) :)

I have a problem with linking my java project with MySQL database.My project structure looks like this:project structure

And my java class "MyUtil" looks:

package pl.projectspring.util;import org.apache.ibatis.io.Resources;import org.apache.ibatis.session.SqlSessionFactory;import org.apache.ibatis.session.SqlSessionFactoryBuilder;import java.io.IOException;import java.io.Reader;public class MyUtil {    private static SqlSessionFactory sessionFactory;    static {        Reader reader;        try {            reader = Resources.getResourceAsReader("projectspring-config.xml");            sessionFactory = new SqlSessionFactoryBuilder().build(reader);        } catch (IOException e) {            e.printStackTrace();        }    }    public static SqlSessionFactory getSessionFactory() {        return sessionFactory;    }}

So in my getResourceAsReader can't read a projectspring-config.xml file. This file is located in package resources, which I created and marked directory as resources root, but always I got an error.

and when I try run an application in browser I got

        HTTP Status 500 – Internal Server Error    Type Exception Report    Message Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class pl.projectspring.util.MyUtil    Description The server encountered an unexpected condition that prevented it from fulfilling the request.    Exception    org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class pl.projectspring.util.MyUtil        org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1055)        org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)        org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)        org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)        javax.servlet.http.HttpServlet.service(HttpServlet.java:634)        org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)        javax.servlet.http.HttpServlet.service(HttpServlet.java:741)        org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)    Root Cause    java.lang.NoClassDefFoundError: Could not initialize class pl.projectspring.util.MyUtil        pl.projectspring.dao.EmployeeMapper.getEmployees(EmployeeMapper.java:15)        pl.projectspring.controller.EmployeeController.index(EmployeeController.java:16)

and more logs

In Intellij I don't have any logs with error in output.

When I change line

    reader = Resources.getResourceAsReader("projectspring-config.xml");

to

    reader = Resources.getResourceAsReader("resources/projectspring-config.xml");

I got in browser

     HTTP Status 500 – Internal Server Error    Type Exception Report    Message Request processing failed; nested exception is java.lang.NullPointerException    Description The server encountered an unexpected condition that prevented it from fulfilling the request.    Exception    org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException        org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)        org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)        javax.servlet.http.HttpServlet.service(HttpServlet.java:634)        org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)        javax.servlet.http.HttpServlet.service(HttpServlet.java:741)        org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)    Root Cause    java.lang.NullPointerException        pl.projectspring.dao.EmployeeMapper.getEmployees(EmployeeMapper.java:15)        pl.projectspring.controller.EmployeeController.index(EmployeeController.java:16)

and more...

but now in Intellij output I got

    java.io.IOException: Could not find resource resources/projectspring-config.xml    at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:89)    at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:76)    at org.apache.ibatis.io.Resources.getResourceAsReader(Resources.java:134)    at pl.projectspring.util.MyUtil.<clinit>(MyUtil.java:18)    at pl.projectspring.dao.EmployeeMapper.getEmployees(EmployeeMapper.java:15)    at pl.projectspring.controller.EmployeeController.index(EmployeeController.java:16)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:498)    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)

I tried to move projectspring-config.xml file to different places, tried telling an slash before resources and always same problem.

I was looking for solutions on Stackoverflow, I found that prompt to add in pom.xml

`<resources><resource><directory>src/main/java</directory><includes><include>**/*.xml</include><include>**/*.properties</include></includes></resource></resources>

`

but it doesn't work.

However I do this from one of tutorial, which is deployed on github, but written in Eclipse (I use Intellij). When I download this project and try run, I have same problem.

I will be grateful for any help