feat: initialize toy project

2023-04-12 02:10:23 +09:00
commit eb2ed45227
39 changed files with 1359 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
--- a/.mvn/wrapper/maven-wrapper.jar
+++ b/.mvn/wrapper/maven-wrapper.jar
--- a/.mvn/wrapper/maven-wrapper.properties
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.6/apache-maven-3.8.6-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
--- a/README.md
+++ b/README.md
@@ -0,0 +1,25 @@
+# Toy for test on spring!
+
+해당 레포지토리는 테스트 코드 추가를 위한 토이 프로젝트 입니다.
+코드가 얼마나 정상 동작하는지, 프로덕션에서 잘 동작하는지를 검증하지는 말아주세요.
+스프링에 테스트를 넣는 과정을 보여드리기 위해 만들어진 레포지토리입니다.
+당연히 완벽하지 않습니다.
+
+## 실행하기
+
+### 00. 바로 시작
+
+h2를 이용하여 `auto create table`을 하고 있기 때문에 바로 실행이 가능합니다.
+
+### 01. 이메일 인증
+
+> 단 이 프로젝트는 사용자가 가입할 때 이메일 인증을 하기위해 메일을 발송하는 코드가 있습니다.
+
+이메일이 제대로 발송되는지 확인해보고 싶으신 분들은 [해당 document 파일](./document/connect-mail-sender.md)을 따라해주세요.
+관련된 자료는 라이브러리나 Gmail 정책에 따라 UI와 방법이 달라질 수 있습니다.
+최신화 된 정보를 제공하지 않으니, 가급적 문서를 참조해주시고, contribution 해주시면 감사하겠습니다.
+
+## 관리 도구로 바로가기
+
+- [h2-console](http://localhost:8080/h2-console)
+- [Openapi-doc](http://localhost:8080/swagger-ui.html)
--- a/document/connect-mail-sender.md
+++ b/document/connect-mail-sender.md
@@ -0,0 +1,17 @@
+# 구글 이메일 발송하기
+
+1. 메일 발송을 위한 계정 세팅 변경
+    ![01.메일 발송을 위한 계정 세팅 변경](./resources/01.mail-settings.png)
+2. 계정에 애플리케이션 접근을 위한 패스워드 생성
+   ![012.계정에 애플리케이션 접근을 위한 패스워드 생성](./resources/02.mail-settings.png)
+3. 메일을 선택
+   ![03.메일을 선택](./resources/03.mail-settings.png)
+4. 기타를 선택
+   ![04.기타를 선택](./resources/04.mail-settings.png)
+5. 패스워드에 이름을 작성
+   ![05.패스워드에 이름을 작성](./resources/05.mail-settings.png)
+6. 패스워드를 복사
+   ![06.패스워드를 복사](./resources/06.mail-settings.png)
+7. `Environment variables`에 다음과 같이 입력해주세요
+   ![07.`Environment variables`에 다음과 같이 입력해주세요](./resources/07.mail-settings.png)
+   > ex. MAIL_USERNAME=test;MAIL_APPLICATION_PASSWORD=aaaabbbbccccdddd
--- a/document/resources/01.mail-settings.png
+++ b/document/resources/01.mail-settings.png
--- a/document/resources/02.mail-settings.png
+++ b/document/resources/02.mail-settings.png
--- a/document/resources/03.mail-settings.png
+++ b/document/resources/03.mail-settings.png
--- a/document/resources/04.mail-settings.png
+++ b/document/resources/04.mail-settings.png
--- a/document/resources/05.mail-settings.png
+++ b/document/resources/05.mail-settings.png
--- a/document/resources/06.mail-settings.png
+++ b/document/resources/06.mail-settings.png
--- a/document/resources/07.mail-settings.png
+++ b/document/resources/07.mail-settings.png
--- a/316
+++ b/316
@@ -0,0 +1,316 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /usr/local/etc/mavenrc ] ; then
+    . /usr/local/etc/mavenrc
+  fi
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`\\unset -f command; \\command -v java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  $MAVEN_DEBUG_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" \
+  "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
--- a/mvnw.cmd
+++ b/mvnw.cmd
@@ -0,0 +1,188 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
+if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% ^
+  %JVM_CONFIG_MAVEN_PROPS% ^
+  %MAVEN_OPTS% ^
+  %MAVEN_DEBUG_OPTS% ^
+  -classpath %WRAPPER_JAR% ^
+  "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
+  %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
+if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%"=="on" pause
+
+if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
+
+cmd /C exit /B %ERROR_CODE%
--- a/pom.xml
+++ b/pom.xml
@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>org.springframework.boot</groupId>
+    <artifactId>spring-boot-starter-parent</artifactId>
+    <version>3.0.1</version>
+    <relativePath/> <!-- lookup parent from repository -->
+  </parent>
+  <groupId>com.example</groupId>
+  <artifactId>demo</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+  <name>demo</name>
+  <description>demo</description>
+  <properties>
+    <java.version>17</java.version>
+  </properties>
+  <dependencies>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-data-jpa</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-web</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-mail</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-validation</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-context-support</artifactId>
+      <version>6.0.3</version>
+    </dependency>
+    <dependency>
+      <groupId>com.h2database</groupId>
+      <artifactId>h2</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.mysql</groupId>
+      <artifactId>mysql-connector-j</artifactId>
+      <scope>runtime</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-core</artifactId>
+      <version>2.14.1</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.datatype</groupId>
+      <artifactId>jackson-datatype-jsr310</artifactId>
+      <version>2.14.1</version>
+    </dependency>
+    <dependency>
+      <groupId>org.springdoc</groupId>
+      <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+      <version>2.0.2</version>
+    </dependency>
+    <dependency>
+      <groupId>org.springdoc</groupId>
+      <artifactId>springdoc-openapi-ui</artifactId>
+      <version>1.6.14</version>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+        <configuration>
+          <excludes>
+            <exclude>
+              <groupId>org.projectlombok</groupId>
+              <artifactId>lombok</artifactId>
+            </exclude>
+          </excludes>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>
--- a/src/main/java/com/example/demo/DemoApplication.java
+++ b/src/main/java/com/example/demo/DemoApplication.java
@@ -0,0 +1,20 @@
+package com.example.demo;
+
+import io.swagger.v3.oas.annotations.OpenAPIDefinition;
+import io.swagger.v3.oas.annotations.info.Info;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+@OpenAPIDefinition(info = @Info(
+    title = "Toy project",
+    version = "v1",
+    description = "테스트 코드를 추가하기 위한 연습에 사용될 토이 프로젝트입니다"
+))
+public class DemoApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(DemoApplication.class, args);
+    }
+
+}
--- a/src/main/java/com/example/demo/controller/ExceptionControllerAdvice.java
+++ b/src/main/java/com/example/demo/controller/ExceptionControllerAdvice.java
@@ -0,0 +1,35 @@
+package com.example.demo.controller;
+
+import static org.springframework.http.HttpStatus.FORBIDDEN;
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+import com.example.demo.exception.CertificationCodeNotMatchedException;
+import com.example.demo.exception.ResourceNotFoundException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.core.Ordered;
+import org.springframework.core.annotation.Order;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ControllerAdvice
+@Order(Ordered.HIGHEST_PRECEDENCE)
+@RequiredArgsConstructor
+public class ExceptionControllerAdvice {
+
+    @ResponseBody
+    @ResponseStatus(NOT_FOUND)
+    @ExceptionHandler(ResourceNotFoundException.class)
+    public String resourceNotFoundException(ResourceNotFoundException exception) {
+        return exception.getMessage();
+    }
+
+    @ResponseBody
+    @ResponseStatus(FORBIDDEN)
+    @ExceptionHandler(CertificationCodeNotMatchedException.class)
+    public String certificationCodeNotMatchedException(CertificationCodeNotMatchedException exception) {
+        return exception.getMessage();
+    }
+
+}
--- a/src/main/java/com/example/demo/controller/HealthCheckController.java
+++ b/src/main/java/com/example/demo/controller/HealthCheckController.java
@@ -0,0 +1,18 @@
+package com.example.demo.controller;
+
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@Tag(name = "헬스 체크")
+@RestController
+public class HealthCheckController {
+
+    @GetMapping("/health_check.html")
+    public ResponseEntity<Void> healthCheck() {
+        return ResponseEntity
+            .ok()
+            .build();
+    }
+}
--- a/src/main/java/com/example/demo/controller/PostController.java
+++ b/src/main/java/com/example/demo/controller/PostController.java
@@ -0,0 +1,49 @@
+package com.example.demo.controller;
+
+import com.example.demo.model.dto.PostResponse;
+import com.example.demo.model.dto.PostUpdateDto;
+import com.example.demo.repository.PostEntity;
+import com.example.demo.service.PostService;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@Tag(name = "게시물(posts)")
+@RestController
+@RequestMapping("/api/posts")
+@RequiredArgsConstructor
+public class PostController {
+
+    private final PostService postService;
+    private final UserController userController;
+
+    @GetMapping("/{id}")
+    public ResponseEntity<PostResponse> getPostById(@PathVariable long id) {
+        return ResponseEntity
+            .ok()
+            .body(toResponse(postService.getPostById(id)));
+    }
+
+    @PutMapping("/{id}")
+    public ResponseEntity<PostResponse> updatePost(@PathVariable long id, @RequestBody PostUpdateDto postUpdateDto) {
+        return ResponseEntity
+            .ok()
+            .body(toResponse(postService.updatePost(id, postUpdateDto)));
+    }
+
+    public PostResponse toResponse(PostEntity postEntity) {
+        PostResponse PostResponse = new PostResponse();
+        PostResponse.setId(postEntity.getId());
+        PostResponse.setContent(postEntity.getContent());
+        PostResponse.setCreatedAt(postEntity.getCreatedAt());
+        PostResponse.setModifiedAt(postEntity.getModifiedAt());
+        PostResponse.setWriter(userController.toResponse(postEntity.getWriter()));
+        return PostResponse;
+    }
+}
--- a/src/main/java/com/example/demo/controller/PostCreateController.java
+++ b/src/main/java/com/example/demo/controller/PostCreateController.java
@@ -0,0 +1,30 @@
+package com.example.demo.controller;
+
+import com.example.demo.model.dto.PostCreateDto;
+import com.example.demo.model.dto.PostResponse;
+import com.example.demo.service.PostService;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@Tag(name = "게시물(posts)")
+@RestController
+@RequestMapping("/api/posts")
+@RequiredArgsConstructor
+public class PostCreateController {
+
+    private final PostService postService;
+    private final PostController postController;
+
+    @PostMapping
+    public ResponseEntity<PostResponse> createPost(@RequestBody PostCreateDto postCreateDto) {
+        return ResponseEntity
+            .status(HttpStatus.CREATED)
+            .body(postController.toResponse(postService.createPost(postCreateDto)));
+    }
+}
--- a/src/main/java/com/example/demo/controller/UserController.java
+++ b/src/main/java/com/example/demo/controller/UserController.java
@@ -0,0 +1,97 @@
+package com.example.demo.controller;
+
+import com.example.demo.model.dto.MyProfileResponse;
+import com.example.demo.model.dto.UserResponse;
+import com.example.demo.model.dto.UserUpdateDto;
+import com.example.demo.repository.UserEntity;
+import com.example.demo.service.UserService;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.enums.ParameterIn;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import java.net.URI;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@Tag(name = "유저(users)")
+@RestController
+@RequestMapping("/api/users")
+@RequiredArgsConstructor
+public class UserController {
+
+    private final UserService userService;
+
+    @ResponseStatus
+    @GetMapping("/{id}")
+    public ResponseEntity<UserResponse> getUserById(@PathVariable long id) {
+        return ResponseEntity
+            .ok()
+            .body(toResponse(userService.getByIdOrElseThrow(id)));
+    }
+
+    @GetMapping("/{id}/verify")
+    public ResponseEntity<Void> verifyEmail(
+        @PathVariable long id,
+        @RequestParam String certificationCode) {
+        userService.verifyEmail(id, certificationCode);
+        return ResponseEntity.status(HttpStatus.FOUND)
+            .location(URI.create("http://localhost:3000"))
+            .build();
+    }
+
+    @GetMapping("/me")
+    public ResponseEntity<MyProfileResponse> getMyInfo(
+        @Parameter(name = "EMAIL", in = ParameterIn.HEADER)
+        @RequestHeader("EMAIL") String email // 일반적으로 스프링 시큐리티를 사용한다면 UserPrincipal 에서 가져옵니다.
+    ) {
+        UserEntity userEntity = userService.getByEmail(email);
+        userService.login(userEntity.getId());
+        return ResponseEntity
+            .ok()
+            .body(toMyProfileResponse(userEntity));
+    }
+
+    @PutMapping("/me")
+    @Parameter(in = ParameterIn.HEADER, name = "EMAIL")
+    public ResponseEntity<MyProfileResponse> updateMyInfo(
+        @Parameter(name = "EMAIL", in = ParameterIn.HEADER)
+        @RequestHeader("EMAIL") String email, // 일반적으로 스프링 시큐리티를 사용한다면 UserPrincipal 에서 가져옵니다.
+        @RequestBody UserUpdateDto userUpdateDto
+    ) {
+        UserEntity userEntity = userService.getByEmail(email);
+        userEntity = userService.updateUser(userEntity.getId(), userUpdateDto);
+        return ResponseEntity
+            .ok()
+            .body(toMyProfileResponse(userEntity));
+    }
+
+    public UserResponse toResponse(UserEntity userEntity) {
+        UserResponse userResponse = new UserResponse();
+        userResponse.setId(userEntity.getId());
+        userResponse.setEmail(userEntity.getEmail());
+        userResponse.setNickname(userEntity.getNickname());
+        userResponse.setStatus(userEntity.getStatus());
+        userResponse.setLastLoginAt(userEntity.getLastLoginAt());
+        return userResponse;
+    }
+
+    public MyProfileResponse toMyProfileResponse(UserEntity userEntity) {
+        MyProfileResponse myProfileResponse = new MyProfileResponse();
+        myProfileResponse.setId(userEntity.getId());
+        myProfileResponse.setEmail(userEntity.getEmail());
+        myProfileResponse.setNickname(userEntity.getNickname());
+        myProfileResponse.setStatus(userEntity.getStatus());
+        myProfileResponse.setAddress(userEntity.getAddress());
+        myProfileResponse.setLastLoginAt(userEntity.getLastLoginAt());
+        return myProfileResponse;
+    }
+}
--- a/src/main/java/com/example/demo/controller/UserCreateController.java
+++ b/src/main/java/com/example/demo/controller/UserCreateController.java
@@ -0,0 +1,33 @@
+package com.example.demo.controller;
+
+import com.example.demo.model.dto.UserCreateDto;
+import com.example.demo.model.dto.UserResponse;
+import com.example.demo.repository.UserEntity;
+import com.example.demo.service.UserService;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@Tag(name = "유저(users)")
+@RestController
+@RequestMapping("/api/users")
+@RequiredArgsConstructor
+public class UserCreateController {
+
+    private final UserController userController;
+    private final UserService userService;
+
+    @PostMapping
+    public ResponseEntity<UserResponse> createUser(@RequestBody UserCreateDto userCreateDto) {
+        UserEntity userEntity = userService.createUser(userCreateDto);
+        return ResponseEntity
+            .status(HttpStatus.CREATED)
+            .body(userController.toResponse(userEntity));
+    }
+
+}
--- a/src/main/java/com/example/demo/exception/CertificationCodeNotMatchedException.java
+++ b/src/main/java/com/example/demo/exception/CertificationCodeNotMatchedException.java
@@ -0,0 +1,8 @@
+package com.example.demo.exception;
+
+public class CertificationCodeNotMatchedException extends RuntimeException {
+
+    public CertificationCodeNotMatchedException() {
+        super("자격 증명에 실패하였습니다.");
+    }
+}
--- a/src/main/java/com/example/demo/exception/ResourceNotFoundException.java
+++ b/src/main/java/com/example/demo/exception/ResourceNotFoundException.java
@@ -0,0 +1,12 @@
+package com.example.demo.exception;
+
+public class ResourceNotFoundException extends RuntimeException {
+
+    public ResourceNotFoundException(String datasource, long id) {
+        super(datasource + "에서 ID " + id + "를 찾을 수 없습니다.");
+    }
+
+    public ResourceNotFoundException(String datasource, String id) {
+        super(datasource + "에서 ID " + id + "를 찾을 수 없습니다.");
+    }
+}
--- a/src/main/java/com/example/demo/model/UserStatus.java
+++ b/src/main/java/com/example/demo/model/UserStatus.java
@@ -0,0 +1,5 @@
+package com.example.demo.model;
+
+public enum UserStatus {
+    PENDING, INACTIVE, ACTIVE
+}
--- a/src/main/java/com/example/demo/model/dto/MyProfileResponse.java
+++ b/src/main/java/com/example/demo/model/dto/MyProfileResponse.java
@@ -0,0 +1,17 @@
+package com.example.demo.model.dto;
+
+import com.example.demo.model.UserStatus;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class MyProfileResponse {
+
+    private Long id;
+    private String email;
+    private String nickname;
+    private String address;
+    private UserStatus status;
+    private Long lastLoginAt;
+}
--- a/src/main/java/com/example/demo/model/dto/PostCreateDto.java
+++ b/src/main/java/com/example/demo/model/dto/PostCreateDto.java
@@ -0,0 +1,20 @@
+package com.example.demo.model.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+public class PostCreateDto {
+
+    private final long writerId;
+    private final String content;
+
+    @Builder
+    public PostCreateDto(
+        @JsonProperty("writerId") long writerId,
+        @JsonProperty("content") String content) {
+        this.writerId = writerId;
+        this.content = content;
+    }
+}
--- a/src/main/java/com/example/demo/model/dto/PostResponse.java
+++ b/src/main/java/com/example/demo/model/dto/PostResponse.java
@@ -0,0 +1,15 @@
+package com.example.demo.model.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class PostResponse {
+
+    private Long id;
+    private String content;
+    private Long createdAt;
+    private Long modifiedAt;
+    private UserResponse writer;
+}
--- a/src/main/java/com/example/demo/model/dto/PostUpdateDto.java
+++ b/src/main/java/com/example/demo/model/dto/PostUpdateDto.java
@@ -0,0 +1,17 @@
+package com.example.demo.model.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+public class PostUpdateDto {
+
+    private final String content;
+
+    @Builder
+    public PostUpdateDto(
+        @JsonProperty("content") String content) {
+        this.content = content;
+    }
+}
--- a/src/main/java/com/example/demo/model/dto/UserCreateDto.java
+++ b/src/main/java/com/example/demo/model/dto/UserCreateDto.java
@@ -0,0 +1,23 @@
+package com.example.demo.model.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+public class UserCreateDto {
+
+    private final String email;
+    private final String nickname;
+    private final String address;
+
+    @Builder
+    public UserCreateDto(
+        @JsonProperty("email") String email,
+        @JsonProperty("nickname") String nickname,
+        @JsonProperty("address") String address) {
+        this.email = email;
+        this.nickname = nickname;
+        this.address = address;
+    }
+}
--- a/src/main/java/com/example/demo/model/dto/UserResponse.java
+++ b/src/main/java/com/example/demo/model/dto/UserResponse.java
@@ -0,0 +1,16 @@
+package com.example.demo.model.dto;
+
+import com.example.demo.model.UserStatus;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class UserResponse {
+
+    private Long id;
+    private String email;
+    private String nickname;
+    private UserStatus status;
+    private Long lastLoginAt;
+}
--- a/src/main/java/com/example/demo/model/dto/UserUpdateDto.java
+++ b/src/main/java/com/example/demo/model/dto/UserUpdateDto.java
@@ -0,0 +1,20 @@
+package com.example.demo.model.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+public class UserUpdateDto {
+
+    private final String nickname;
+    private final String address;
+
+    @Builder
+    public UserUpdateDto(
+        @JsonProperty("nickname") String nickname,
+        @JsonProperty("address") String address) {
+        this.nickname = nickname;
+        this.address = address;
+    }
+}
--- a/src/main/java/com/example/demo/repository/PostEntity.java
+++ b/src/main/java/com/example/demo/repository/PostEntity.java
@@ -0,0 +1,37 @@
+package com.example.demo.repository;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@Entity
+@Table(name = "posts")
+public class PostEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(name = "content")
+    private String content;
+
+    @Column(name = "created_at")
+    private Long createdAt;
+
+    @Column(name = "modified_at")
+    private Long modifiedAt;
+
+    @ManyToOne
+    @JoinColumn(name = "user_id")
+    private UserEntity writer;
+
+}
--- a/src/main/java/com/example/demo/repository/PostRepository.java
+++ b/src/main/java/com/example/demo/repository/PostRepository.java
@@ -0,0 +1,7 @@
+package com.example.demo.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface PostRepository extends JpaRepository<PostEntity, Long> {
+
+}
--- a/src/main/java/com/example/demo/repository/UserEntity.java
+++ b/src/main/java/com/example/demo/repository/UserEntity.java
@@ -0,0 +1,43 @@
+package com.example.demo.repository;
+
+import com.example.demo.model.UserStatus;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@Entity
+@Table(name = "users")
+public class UserEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(name = "email")
+    private String email;
+
+    @Column(name = "nickname")
+    private String nickname;
+
+    @Column(name = "address")
+    private String address;
+
+    @Column(name = "certification_code")
+    private String certificationCode;
+
+    @Column(name = "status")
+    @Enumerated(EnumType.STRING)
+    private UserStatus status;
+
+    @Column(name = "last_login_at")
+    private Long lastLoginAt;
+}
--- a/src/main/java/com/example/demo/repository/UserRepository.java
+++ b/src/main/java/com/example/demo/repository/UserRepository.java
@@ -0,0 +1,12 @@
+package com.example.demo.repository;
+
+import com.example.demo.model.UserStatus;
+import java.util.Optional;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface UserRepository extends JpaRepository<UserEntity, Long> {
+
+    Optional<UserEntity> findByIdAndStatus(long id, UserStatus userStatus);
+
+    Optional<UserEntity> findByEmailAndStatus(String email, UserStatus userStatus);
+}
--- a/src/main/java/com/example/demo/service/PostService.java
+++ b/src/main/java/com/example/demo/service/PostService.java
@@ -0,0 +1,39 @@
+package com.example.demo.service;
+
+import com.example.demo.exception.ResourceNotFoundException;
+import com.example.demo.model.dto.PostCreateDto;
+import com.example.demo.model.dto.PostUpdateDto;
+import com.example.demo.repository.PostEntity;
+import com.example.demo.repository.PostRepository;
+import com.example.demo.repository.UserEntity;
+import java.time.Clock;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class PostService {
+
+    private final PostRepository postRepository;
+    private final UserService userService;
+
+    public PostEntity getPostById(long id) {
+        return postRepository.findById(id).orElseThrow(() -> new ResourceNotFoundException("Posts", id));
+    }
+
+    public PostEntity createPost(PostCreateDto postCreateDto) {
+        UserEntity userEntity = userService.getByIdOrElseThrow(postCreateDto.getWriterId());
+        PostEntity postEntity = new PostEntity();
+        postEntity.setWriter(userEntity);
+        postEntity.setContent(postCreateDto.getContent());
+        postEntity.setCreatedAt(Clock.systemUTC().millis());
+        return postRepository.save(postEntity);
+    }
+
+    public PostEntity updatePost(long id, PostUpdateDto postUpdateDto) {
+        PostEntity postEntity = getPostById(id);
+        postEntity.setContent(postUpdateDto.getContent());
+        postEntity.setModifiedAt(Clock.systemUTC().millis());
+        return postRepository.save(postEntity);
+    }
+}
--- a/src/main/java/com/example/demo/service/UserService.java
+++ b/src/main/java/com/example/demo/service/UserService.java
@@ -0,0 +1,89 @@
+package com.example.demo.service;
+
+import com.example.demo.exception.CertificationCodeNotMatchedException;
+import com.example.demo.exception.ResourceNotFoundException;
+import com.example.demo.model.UserStatus;
+import com.example.demo.model.dto.UserCreateDto;
+import com.example.demo.model.dto.UserUpdateDto;
+import com.example.demo.repository.UserEntity;
+import com.example.demo.repository.UserRepository;
+import java.time.Clock;
+import java.util.Optional;
+import java.util.UUID;
+import lombok.RequiredArgsConstructor;
+import org.springframework.mail.SimpleMailMessage;
+import org.springframework.mail.javamail.JavaMailSender;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+public class UserService {
+
+    private final UserRepository userRepository;
+    private final JavaMailSender mailSender;
+
+    public Optional<UserEntity> getById(long id) {
+        return userRepository.findByIdAndStatus(id, UserStatus.ACTIVE);
+    }
+
+    public UserEntity getByEmail(String email) {
+        return userRepository.findByEmailAndStatus(email, UserStatus.ACTIVE)
+            .orElseThrow(() -> new ResourceNotFoundException("Users", email));
+    }
+
+    public UserEntity getByIdOrElseThrow(long id) {
+        return userRepository.findByIdAndStatus(id, UserStatus.ACTIVE)
+            .orElseThrow(() -> new ResourceNotFoundException("Users", id));
+    }
+
+    @Transactional
+    public UserEntity createUser(UserCreateDto userCreateDto) {
+        UserEntity userEntity = new UserEntity();
+        userEntity.setEmail(userCreateDto.getEmail());
+        userEntity.setNickname(userCreateDto.getNickname());
+        userEntity.setAddress(userCreateDto.getAddress());
+        userEntity.setStatus(UserStatus.PENDING);
+        userEntity.setCertificationCode(UUID.randomUUID().toString());
+        userEntity = userRepository.save(userEntity);
+        String certificationUrl = generateCertificationUrl(userEntity);
+        sendCertificationEmail(userCreateDto.getEmail(), certificationUrl);
+        return userEntity;
+    }
+
+    @Transactional
+    public UserEntity updateUser(long id, UserUpdateDto userUpdateDto) {
+        UserEntity userEntity = getByIdOrElseThrow(id);
+        userEntity.setNickname(userUpdateDto.getNickname());
+        userEntity.setAddress(userUpdateDto.getAddress());
+        userEntity = userRepository.save(userEntity);
+        return userEntity;
+    }
+
+    @Transactional
+    public void login(long id) {
+        UserEntity userEntity = userRepository.findById(id).orElseThrow(() -> new ResourceNotFoundException("Users", id));
+        userEntity.setLastLoginAt(Clock.systemUTC().millis());
+    }
+
+    @Transactional
+    public void verifyEmail(long id, String certificationCode) {
+        UserEntity userEntity = userRepository.findById(id).orElseThrow(() -> new ResourceNotFoundException("Users", id));
+        if (!certificationCode.equals(userEntity.getCertificationCode())) {
+            throw new CertificationCodeNotMatchedException();
+        }
+        userEntity.setStatus(UserStatus.ACTIVE);
+    }
+
+    private void sendCertificationEmail(String email, String certificationUrl) {
+        SimpleMailMessage message = new SimpleMailMessage();
+        message.setTo(email);
+        message.setSubject("Please certify your email address");
+        message.setText("Please click the following link to certify your email address: " + certificationUrl);
+        mailSender.send(message);
+    }
+
+    private String generateCertificationUrl(UserEntity userEntity) {
+        return "http://localhost:8080/api/users/" + userEntity.getId() + "/verify?certificationCode=" + userEntity.getCertificationCode();
+    }
+}
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -0,0 +1,17 @@
+spring.h2.console.enabled=true
+spring.h2.console.path=/h2-console
+spring.datasource.url=jdbc:h2:~/mem-data;
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
+spring.jpa.hibernate.ddl-auto=create
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+springdoc.swagger-ui.path=/swagger-ui.html
+
+spring.mail.host=smtp.gmail.com
+spring.mail.port=587
+spring.mail.username=${MAIL_USERNAME}
+spring.mail.password=${MAIL_APPLICATION_PASSWORD}
+spring.mail.properties.mail.smtp.auth=true
+spring.mail.properties.mail.smtp.timeout=5000
+spring.mail.properties.mail.smtp.starttls.enable=true