Initial commit

.gitattributes

+/mvnw text eol=lf
+*.cmd text eol=crlf

.gitignore

+git add 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/

.mvn/wrapper/maven-wrapper.properties

+# 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
+#
+#   http://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.
+wrapperVersion=3.3.2
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip

HELP.md

+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Apache Maven documentation](https://maven.apache.org/guides/index.html)
+* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/3.4.4/maven-plugin)
+* [Create an OCI image](https://docs.spring.io/spring-boot/3.4.4/maven-plugin/build-image.html)
+* [Spring Web](https://docs.spring.io/spring-boot/3.4.4/reference/web/servlet.html)
+* [Thymeleaf](https://docs.spring.io/spring-boot/3.4.4/reference/web/servlet.html#web.servlet.spring-mvc.template-engines)
+* [Spring Boot DevTools](https://docs.spring.io/spring-boot/3.4.4/reference/using/devtools.html)
+* [Spring Data JPA](https://docs.spring.io/spring-boot/3.4.4/reference/data/sql.html#data.sql.jpa-and-spring-data)
+* [Spring for RabbitMQ](https://docs.spring.io/spring-boot/3.4.4/reference/messaging/amqp.html)
+
+### Guides
+The following guides illustrate how to use some features concretely:
+
+* [Building a RESTful Web Service](https://spring.io/guides/gs/rest-service/)
+* [Serving Web Content with Spring MVC](https://spring.io/guides/gs/serving-web-content/)
+* [Building REST services with Spring](https://spring.io/guides/tutorials/rest/)
+* [Handling Form Submission](https://spring.io/guides/gs/handling-form-submission/)
+* [Accessing Data with JPA](https://spring.io/guides/gs/accessing-data-jpa/)
+* [Messaging with RabbitMQ](https://spring.io/guides/gs/messaging-rabbitmq/)
+
+### Maven Parent overrides
+
+Due to Maven's design, elements are inherited from the parent POM to the project POM.
+While most of the inheritance is fine, it also inherits unwanted elements like `<license>` and `<developers>` from the parent.
+To prevent this, the project POM contains empty overrides for these elements.
+If you manually switch to a different parent and actually want the inheritance, you need to remove those overrides.
+

mvnw

+#!/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
+#
+#    http://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.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.2
+#
+# Optional ENV vars
+# -----------------
+#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
+#   MVNW_REPOURL - repo url base for downloading maven distribution
+#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+  native_path() { cygpath --path --windows "$1"; }
+  ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+  if [ -n "${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"
+      JAVACCMD="$JAVA_HOME/jre/sh/javac"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+      JAVACCMD="$JAVA_HOME/bin/javac"
+
+      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+        return 1
+      fi
+    fi
+  else
+    JAVACMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v java
+    )" || :
+    JAVACCMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v javac
+    )" || :
+
+    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+      return 1
+    fi
+  fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+  str="${1:-}" h=0
+  while [ -n "$str" ]; do
+    char="${str%"${str#?}"}"
+    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+    str="${str#?}"
+  done
+  printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+  printf %s\\n "$1" >&2
+  exit 1
+}
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+  case "${key-}" in
+  distributionUrl) distributionUrl=$(trim "${value-}") ;;
+  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+  esac
+done <"${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+  *)
+    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+    distributionPlatform=linux-amd64
+    ;;
+  esac
+  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+  ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${0##*/mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+  trap clean HUP INT TERM EXIT
+else
+  die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+  distributionUrl="${distributionUrl%.zip}.tar.gz"
+  distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+  verbose "Found wget ... using wget"
+  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+  verbose "Found curl ... using curl"
+  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+  verbose "Falling back to use Java to download"
+  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+  cat >"$javaSource" <<-END
+	public class Downloader extends java.net.Authenticator
+	{
+	  protected java.net.PasswordAuthentication getPasswordAuthentication()
+	  {
+	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+	  }
+	  public static void main( String[] args ) throws Exception
+	  {
+	    setDefault( new Downloader() );
+	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+	  }
+	}
+	END
+  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+  verbose " - Compiling Downloader.java ..."
+  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+  verbose " - Running Downloader.java ..."
+  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+  distributionSha256Result=false
+  if [ "$MVN_CMD" = mvnd.sh ]; then
+    echo "Checksum validation is not supported for maven-mvnd." >&2
+    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  elif command -v sha256sum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $distributionSha256Result = false ]; then
+    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"

mvnw.cmd

+<# : batch portion
+@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    http://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 Apache Maven Wrapper startup batch script, version 3.3.2
+@REM
+@REM Optional ENV vars
+@REM   MVNW_REPOURL - repo url base for downloading maven distribution
+@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+  IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" (%__MVNW_CMD__% %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+  $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+  Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+  "maven-mvnd-*" {
+    $USE_MVND = $true
+    $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+    $MVN_CMD = "mvnd.cmd"
+    break
+  }
+  default {
+    $USE_MVND = $false
+    $MVN_CMD = $script -replace '^mvnw','mvn'
+    break
+  }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+if ($env:MVNW_REPOURL) {
+  $MVNW_REPO_PATTERN = if ($USE_MVND) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+  $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace '^.*'+$MVNW_REPO_PATTERN,'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+$MAVEN_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain"
+if ($env:MAVEN_USER_HOME) {
+  $MAVEN_HOME_PARENT = "$env:MAVEN_USER_HOME/wrapper/dists/$distributionUrlNameMain"
+}
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+  Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+  exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+  Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+  if ($TMP_DOWNLOAD_DIR.Exists) {
+    try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+    catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+  }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+  $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+  if ($USE_MVND) {
+    Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+  }
+  Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+  if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+    Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+  }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+  Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+  if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+    Write-Error "fail to move MAVEN_HOME"
+  }
+} finally {
+  try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+  catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"

pom.xml

+<?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>3.4.4</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.example</groupId>
+	<artifactId>libarry</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>libarry</name>
+	<description>Demo project for Spring Boot</description>
+	<url/>
+	<licenses>
+		<license/>
+	</licenses>
+	<developers>
+		<developer/>
+	</developers>
+	<scm>
+		<connection/>
+		<developerConnection/>
+		<tag/>
+		<url/>
+	</scm>
+	<properties>
+		<java.version>21</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-amqp</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-thymeleaf</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springdoc</groupId>
+			<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+			<version>2.3.0</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-devtools</artifactId>
+			<scope>runtime</scope>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-activemq</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.apache.activemq</groupId>
+			<artifactId>activemq-broker</artifactId>
+			<version>5.17.6</version> <!-- aktuální verze k dubnu 2025 -->
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.amqp</groupId>
+			<artifactId>spring-rabbit-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

src/main/java/com/example/library/Book.java

+package com.example.library;
+
+
+import jakarta.persistence.*;
+
+@Entity
+public class Book {
+
+  @Id
+  @GeneratedValue(strategy = GenerationType.IDENTITY)
+  private Long id;
+
+  private String title;
+  private String author;
+  private boolean available = true;
+
+  public Book() {
+  }
+
+  public Book(String title, String author, boolean available) {
+    this.title = title;
+    this.author = author;
+    this.available = available;
+  }
+
+  // Gettery a settery
+
+  public Long getId() {
+    return id;
+  }
+
+  public String getTitle() {
+    return title;
+  }
+
+  public String getAuthor() {
+    return author;
+  }
+
+  public boolean isAvailable() {
+    return available;
+  }
+
+  public void setAvailable(boolean available) {
+    this.available = available;
+  }
+}
\ No newline at end of file

src/main/java/com/example/library/BookController.java

+package com.example.library;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/books")
+public class BookController {
+
+  private final LibraryService service;
+
+  public BookController(LibraryService service) {
+    this.service = service;
+  }
+
+  @PostMapping
+  public ResponseEntity<Book> addBook(@RequestBody Book book) {
+    return ResponseEntity.ok(service.addBook(book));
+  }
+
+  @GetMapping
+  public ResponseEntity<List<Book>> getAllBooks() {
+    return ResponseEntity.ok(service.findAllBooks());
+  }
+
+  @PostMapping("/{id}/borrow")
+  public ResponseEntity<String> borrowBook(@PathVariable Long id) {
+    boolean success = service.borrowBook(id);
+    return success
+        ? ResponseEntity.ok("Book borrowed.")
+        : ResponseEntity.badRequest().body("Book not available or not found.");
+  }
+
+  @PostMapping("/{id}/return")
+  public ResponseEntity<String> returnBook(@PathVariable Long id) {
+    boolean success = service.returnBook(id);
+    return success
+        ? ResponseEntity.ok("Book returned.")
+        : ResponseEntity.badRequest().body("Book is already available or not found.");
+  }
+}
\ No newline at end of file

src/main/java/com/example/library/BookRepository.java

+package com.example.library;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface BookRepository extends JpaRepository<Book, Long> {
+  // není třeba nic psát, vše funguje z krabice
+}
\ No newline at end of file

src/main/java/com/example/library/BookSender.java

+package com.example.library;
+
+import jakarta.jms.Queue;
+import org.springframework.jms.core.JmsTemplate;
+import org.springframework.stereotype.Service;
+
+@Service
+public class BookSender {
+
+  private final JmsTemplate jmsTemplate;
+  private final Queue bookQueue;
+
+  public BookSender(JmsTemplate jmsTemplate, Queue bookQueue) {
+    this.jmsTemplate = jmsTemplate;
+    this.bookQueue = bookQueue;
+  }
+
+  public void sendBook(Book book) {
+    jmsTemplate.convertAndSend(bookQueue, book);
+  }
+}
\ No newline at end of file

src/main/java/com/example/library/LibarryApplication.java

+package com.example.library;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class LibarryApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(LibarryApplication.class, args);
+	}
+
+}

src/main/java/com/example/library/LibraryService.java

+package com.example.library;
+
+import org.springframework.stereotype.Service;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class LibraryService {
+
+  private final BookRepository repository;
+
+  public LibraryService(BookRepository repository) {
+    this.repository = repository;
+  }
+
+  public Book addBook(Book book) {
+    book.setAvailable(true); // nová kniha je dostupná
+    return repository.save(book);
+  }
+
+  public List<Book> findAllBooks() {
+    return repository.findAll();
+  }
+
+  public Optional<Book> findBookById(Long id) {
+    return repository.findById(id);
+  }
+
+  public boolean borrowBook(Long bookId) {
+    return repository.findById(bookId)
+        .filter(Book::isAvailable)
+        .map(book -> {
+          book.setAvailable(false);
+          repository.save(book);
+          return true;
+        })
+        .orElse(false);
+  }
+
+  public boolean returnBook(Long bookId) {
+    return repository.findById(bookId)
+        .filter(book -> !book.isAvailable())
+        .map(book -> {
+          book.setAvailable(true);
+          repository.save(book);
+          return true;
+        })
+        .orElse(false);
+  }
+}
\ No newline at end of file

src/main/java/com/example/library/ViewController.java

+package com.example.library;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class ViewController {
+
+  private final LibraryService libraryService;
+
+  public ViewController(LibraryService libraryService) {
+    this.libraryService = libraryService;
+  }
+
+  @GetMapping("/")
+  public String index(Model model) {
+    model.addAttribute("books", libraryService.findAllBooks());
+    return "index";
+  }
+}

src/main/java/com/example/library/config/JmsConfig.java

+package com.example.library.config;
+
+import jakarta.jms.Queue;
+import org.apache.activemq.command.ActiveMQQueue;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class JmsConfig {
+
+  @Bean
+  public Queue bookQueue() {
+    return new  ActiveMQQueue("bookQueue");
+  }
+}

src/main/java/com/example/library/config/SweaggerConfig.java

+package com.example.library.config;
+
+import io.swagger.v3.oas.models.info.Info;
+import io.swagger.v3.oas.models.OpenAPI;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class SweaggerConfig {
+
+  @Bean
+  public OpenAPI customOpenAPI() {
+    return new OpenAPI()
+        .info(new Info()
+            .title("Bookworm Library API")
+            .version("1.0")
+            .description("REST API for libarary management"));
+  }
+}
\ No newline at end of file

src/main/resources/application.properties

+spring.application.name=libarry
+# H2 databze (in-memory)
+spring.datasource.url=jdbc:h2:mem:librarydb
+spring.datasource.driver-class-name=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
+spring.jpa.hibernate.ddl-auto=update
+spring.h2.console.enabled=true
\ No newline at end of file

src/main/resources/static/css/style.css

+body {
+    font-family: 'Segoe UI', sans-serif;
+    background-color: #f9f9f9;
+    margin: 0;
+    padding: 20px;
+    color: #333;
+}
+
+h1, h2 {
+    text-align: center;
+    color: #2c3e50;
+}
+
+form {
+    max-width: 500px;
+    margin: 20px auto;
+    padding: 15px;
+    background: white;
+    border-radius: 8px;
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+}
+
+form label {
+    display: block;
+    margin-bottom: 10px;
+}
+
+form input[type="text"] {
+    width: 100%;
+    padding: 8px;
+    margin-top: 4px;
+    border-radius: 4px;
+    border: 1px solid #ccc;
+}
+
+form button {
+    margin-top: 10px;
+    padding: 10px 20px;
+    background-color: #3498db;
+    border: none;
+    color: white;
+    border-radius: 4px;
+    cursor: pointer;
+    font-size: 1em;
+}
+
+table {
+    width: 100%;
+    margin: 20px 0;
+    border-collapse: collapse;
+    background: white;
+    border-radius: 8px;
+    overflow: hidden;
+    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
+}
+
+th, td {
+    padding: 12px;
+    border-bottom: 1px solid #e0e0e0;
+    text-align: left;
+}
+
+th {
+    background-color: #ecf0f1;
+}
+
+td:last-child {
+    white-space: nowrap;
+}
+
+button.action {
+    padding: 6px 10px;
+    margin-right: 5px;
+    font-size: 0.9em;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+}
+
+.borrow {
+    background-color: #2ecc71;
+    color: white;
+}
+
+.return {
+    background-color: #f39c12;
+    color: white;
+}
+
+@media (max-width: 600px) {
+    table, thead, tbody, th, td, tr {
+        display: block;
+    }
+
+    th {
+        position: absolute;
+        top: -9999px;
+        left: -9999px;
+    }
+
+    td {
+        border: none;
+        position: relative;
+        padding-left: 50%;
+        white-space: normal;
+    }
+
+    td::before {
+        content: attr(data-label);
+        position: absolute;
+        left: 10px;
+        font-weight: bold;
+        color: #7f8c8d;
+    }
+}
\ No newline at end of file

src/main/resources/templates/index.html

+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <title>📚 Bookworm Library</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link rel="stylesheet" th:href="@{/css/style.css}">
+</head>
+<body>
+<h1>📚 Bookworm Library</h1>
+
+<!-- Formulář pro přidání knihy -->
+<h2>➕ Přidat novou knihu</h2>
+<form th:action="@{/api/books}" method="post" onsubmit="return sendBook(event)">
+    <label>Název:
+        <input type="text" name="title" required>
+    </label>
+    <label>Autor:
+        <input type="text" name="author" required>
+    </label>
+    <button type="submit">Přidat</button>
+</form>
+
+<!-- Tabulka knih -->
+<h2>📖 Seznam knih</h2>
+<table border="1">
+    <thead>
+    <tr>
+        <th>ID</th>
+        <th>Název</th>
+        <th>Autor</th>
+        <th>Dostupnost</th>
+        <th>Akce</th>
+    </tr>
+    </thead>
+    <tbody>
+    <tr th:each="book : ${books}">
+        <td th:text="${book.id}"></td>
+        <td th:text="${book.title}"></td>
+        <td th:text="${book.author}"></td>
+        <td th:text="${book.available ? 'Ano' : 'Ne'}"></td>
+        <td>
+            <button th:if="${book.available}"
+                    th:attr="onclick=|borrowBook(${book.id})|">📚 Půjčit</button>
+            <button th:unless="${book.available}"
+                    th:attr="onclick=|returnBook(${book.id})|">🔄 Vrátit</button>
+        </td>
+    </tr>
+    </tbody>
+</table>
+
+<script>
+    function borrowBook(id) {
+        fetch(`/api/books/${id}/borrow`, {method: 'POST'})
+            .then(response => {
+                if (response.ok) {
+                    alert("Kniha byla půjčena.");
+                    location.reload();
+                } else {
+                    alert("Nepodařilo se půjčit knihu.");
+                }
+            });
+    }
+
+    function returnBook(id) {
+        fetch(`/api/books/${id}/return`, {method: 'POST'})
+            .then(response => {
+                if (response.ok) {
+                    alert("Kniha byla vrácena.");
+                    location.reload();
+                } else {
+                    alert("Nepodařilo se vrátit knihu.");
+                }
+            });
+    }
+
+    function sendBook(event) {
+        event.preventDefault();
+        const form = event.target;
+        const data = {
+            title: form.title.value,
+            author: form.author.value
+        };
+
+        fetch('/api/books', {
+            method: 'POST',
+            headers: {'Content-Type': 'application/json'},
+            body: JSON.stringify(data)
+        }).then(response => {
+            if (response.ok) {
+                alert("Kniha byla přidána.");
+                location.reload();
+            } else {
+                alert("Nepodařilo se přidat knihu.");
+            }
+        });
+        return false;
+    }
+</script>
+
+</body>
+</html>
\ No newline at end of file

src/test/java/com/example/library/LibarryApplicationTests.java

+package com.example.library;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class LibarryApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}