@Bean
public LoginInterceptor loginLogInterceptor() {
       return new LoginInterceptor();
}
@Override
public void addInterceptors(InterceptorRegistry registry)  {
       InterceptorRegistration interceptor =  registry.addInterceptor(loginLogInterceptor());
       interceptor.addPathPatterns("/**");
}

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.HandlerInterceptor;
public class LoginInterceptor implements HandlerInterceptor {
      @Override
      public boolean preHandle(HttpServletRequest request,   HttpServletResponse response, Object handler)
                 throws Exception {
          return true;
      }
      
      @Override
      public void postHandle(HttpServletRequest request,   HttpServletResponse response, Object handler,
                 ModelAndView modelAndView) throws Exception {
     }
      
      @Override
      public void afterCompletion(HttpServletRequest request,   HttpServletResponse response, Object handler, Exception ex)
                 throws Exception {
      }   
}

<Button
    android:id="@+id/button4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:onClick="onClick"
    android:text="Button"
    tools:layout_editor_absoluteX="167dp"
    tools:layout_editor_absoluteY="299dp" />

<Button
    android:id="@+id/button4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginBottom="9dp"
    android:onClick="onClick"
    android:text="Button"
    app:layout_constraintBottom_toTopOf="@+id/textView"
    app:layout_constraintStart_toStartOf="@+id/textView" />

public void onClick(View v) {
    Toast.makeText(getApplicationContext(),"Hello World",Toast.LENGTH_SHORT).show();
}

     private long    parentSeq;
     private int       boardOrder;
     private long    boardDepth;

<select id="getTitleVOList" parameterType="SelectVO"  resultType="TitleVO">
           SELECT board_seq as boardSeq
                   , title
                   , writer
                   , date
                   , count
                   , user_id as userId
                   , user_seq as userSeq
                   , board_del as boardDel
                   , parent_seq as parentSeq
                   , board_order as boardOrder
                   , board_depth as boardDept  
           FROM board
           
           <include refid="searchBoard"></include>
           ORDER BY parent_seq DESC, board_order ASC
           LIMIT #{start}, #{length}  
     </select>

private PostReplyVO getMyRelpyVO(PostReplyVO parentReplyVo)  throws Exception {
           if (parentReplyVo == null) {
                throw new  LogicException(Constants.RESULT_STATE.BOARD_UNKOWN_ERROR.getState(), Constants.RESULT_STATE.BOARD_UNKOWN_ERROR.getMessage());                
           }
           
           PostReplyVO myReplyVO = new PostReplyVO();                 // 현재 게시물 자신의 정보
           myReplyVO.setParentSeq(parentReplyVo.getParentSeq());     // 최상위 부모 seq 넣어줌
           
           boolean isChild =  isParentFirstChild(parentReplyVo.getBoardSeq());
           if (!isChild) {                                                      // 자식이 존재하지 않는다
                PostReplyVO lastPostReplyVO =  dao.getPostReplyVO(parentReplyVo.getBoardSeq());  // 직계부모  정보를 가져와서 자신의 정보를 정한다
                if (lastPostReplyVO == null) {
                     throw new  LogicException(Constants.RESULT_STATE.BOARD_UNKOWN_ERROR.getState(), Constants.RESULT_STATE.BOARD_UNKOWN_ERROR.getMessage());
                }
                myReplyVO.setBoardOrder(lastPostReplyVO.getBoardOrder() +  1);
                myReplyVO.setBoardDepth(lastPostReplyVO.getBoardDepth() +  1);
                
           } else {
                PostReplyVO postReplyVO =  getMyParentLastChildBoardReplyVO(parentReplyVo);     // 자신의  부모의 마지막 자식을 찾음
                if (postReplyVO == null) {
                     throw new  LogicException(Constants.RESULT_STATE.BOARD_UNKOWN_ERROR.getState(), Constants.RESULT_STATE.BOARD_UNKOWN_ERROR.getMessage());
                }
                myReplyVO.setBoardOrder(postReplyVO.getBoardOrder() + 1);                // 마지막 자식의 정보를 가지고 자신의 정보를 정한다
                myReplyVO.setBoardDepth(parentReplyVo.getBoardDepth() +  1);  // 부모의 깊이에서 하나 더해주기
           }
           
           return myReplyVO;
     }

<select id="getParentNextChildBoardCount"  parameterType="PostReplyVO" resultType="int">
   SELECT
                   count(*)
   FROM       board
   WHERE      parent_seq = #{parentSeq} and board_order  = #{boardOrder} + 1 and board_depth = #{boardDepth} + 1
</select>

<select id="getLastReplyBoard" resultType="PostReplyVO"  parameterType="ParamMap" >
   SELECT            
                     board_seq as boardSeq
                   , parent_seq as parentSeq
                   , board_order as boardOrder
                   , board_depth as boardDepth  
   FROM       board
   WHERE      parent_seq = #{parentSeq} and board_depth  >= #{boardDepth} + 1 and (board_order > #{boardOrder}) AND  board_state IN (0, 2)
   ORDER BY   board_order DESC
   LIMIT      0,1
</select>

이더넷 어댑터 이더넷:

   연결별 DNS 접미사. . . . :
   링크-로컬 IPv6 주소 . . . . : fe80::881b:e340:c3c6:cae2%6
   IPv4 주소 . . . . . . . . . : 192.168.38.1
   서브넷 마스크 . . . . . . . : 255.255.192.0
   기본 게이트웨이 . . . . . . : 192.168.1.1

sudo apt-get install openssh-server
service ssh restart

 netstat -tnlp

sudo apt-get update
sudo apt-get install iptables-persistent

sudo iptables -P INPUT ACCEPT
sudo iptables -P FORWARD ACCEPT
sudo iptables -P OUTPUT ACCEPT
sudo iptables -Z
sudo iptables -F
sudo iptables -X

vi /etc/netplan/50-cloud-init.yaml

network:
    ethernets:
        enp0s3:
            dhcp4: no
            dhcp6: no
            addresses: [192.168.38.3/24]
            gateway4: 192.168.1.1
            nameservers:
              addresses: [8.8.8.8,8.8.4.4]
    version: 2

sudo netplan apply

ifconfig -a

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in base.toy.config.RootConfig: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/jdbc/datasource/TransactionAwareDataSourceProxy

<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
	<groupId>org.springframework</groupId>
	<artifactId>spring-jdbc</artifactId>
	<version>5.1.4.RELEASE</version>
</dependency>