init

transactional-demo/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,18 @@
+# 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.
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.7/apache-maven-3.8.7-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar

transactional-demo/mvnw

@@ -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} $MAVEN_CONFIG "$@"

transactional-demo/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%

transactional-demo/pom.xml

@@ -0,0 +1,66 @@
+<?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>nl.org</groupId>
+        <artifactId>demo</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <groupId>nl.org</groupId>
+    <artifactId>transactional-demo</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>transactional-demo</name>
+    <packaging>jar</packaging>
+    <description>Demo project for Spring Boot</description>
+    <properties>
+        <java.version>8</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-all</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jdbc</artifactId>
+            <version>2.7.5</version>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid-spring-boot-starter</artifactId>
+            <version>1.1.22</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </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>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

transactional-demo/src/main/java/nl/org/transactionaldemo/StartApplication.java

@@ -0,0 +1,13 @@
+package nl.org.transactionaldemo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class StartApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(StartApplication.class, args);
+    }
+
+}

transactional-demo/src/main/java/nl/org/transactionaldemo/server/JDK新特性/stream流/StreamDemo.java

@@ -0,0 +1,79 @@
+package nl.org.transactionaldemo.server.JDK新特性.stream流;
+
+import com.alibaba.fastjson.JSONObject;
+
+import java.util.*;
+import java.util.function.BiConsumer;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
+/*
+ * @author ZZQ
+ * @Date 2023/4/27 13:46
+ */
+public class StreamDemo {
+    public static void main(String[] args) {
+        List<DataEntity> list = extracted(100);
+        //1.字段汇总
+        Set<String> collect = list.stream()
+                .map(DataEntity::getName).collect(Collectors.toSet());
+        //2.条件过滤
+        List<DataEntity> collect1 = list.stream().filter(dataEntity -> dataEntity.getClassNo().equals("NO.3")).collect(Collectors.toList());
+        //3.分组
+        Map<String, List<DataEntity>> map = list.stream().collect(Collectors.groupingBy(dataEntity -> dataEntity.getClassNo()));
+        //4.转换
+        Map<String, DataEntity> map2 = list.stream().collect(HashMap::new, (k, v) -> k.put(v.getName(), v), HashMap::putAll);
+
+    }
+
+    private static List extracted(int count) {
+        List<DataEntity> list = new ArrayList<>();
+        for (int i = 0; i < count; i++) {
+            DataEntity entity = new DataEntity();
+            entity.setName(UUID.randomUUID().toString());
+            entity.setAge(new Random().nextInt(20)+1);
+            entity.setClassNo("NO."+(i%3+1));
+            list.add(entity);
+        }
+        return list;
+    }
+}
+
+class DataEntity{
+   private String name;
+    private Integer age;
+    private String classNo;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+    public String getClassNo() {
+        return classNo;
+    }
+
+    public void setClassNo(String classNo) {
+        this.classNo = classNo;
+    }
+
+    @Override
+    public String toString() {
+        return "DataEntity{" +
+                "name='" + name + '\'' +
+                ", age=" + age +
+                ", classNo='" + classNo + '\'' +
+                '}';
+    }
+}

transactional-demo/src/main/java/nl/org/transactionaldemo/server/JDK新特性/函数式接口/FuntureDemo.java

@@ -0,0 +1,56 @@
+package nl.org.transactionaldemo.server.JDK新特性.函数式接口;
+
+import java.util.function.Function;
+
+/*
+ * @author ZZQ
+ * @Date 2023/4/27 14:28
+ */
+public class FuntureDemo {
+    public static void main(String[] args) {
+        //1.接口继承：重写方法
+        NumProcess numProcess = new NumProcess();
+        numProcess.process(3);
+
+        //2.正常业务处理：文字处理业务中需要引入数字处理业务
+        StringProcess process = new StringProcess();
+        process.process();
+
+        //3.以参数的形式带入
+        process.process(new NumProcess());
+
+        //4.匿名内部类
+        process.process(new Process() {
+            @Override
+            public Object process(Object o) {
+                return (Integer)o*2;
+            }
+        });
+        //5.函数式接口
+        process.process((a)-> ((Integer) a)*2);
+
+    }
+
+}
+
+@FunctionalInterface
+interface Process<T,R>{
+   R  process(T t);
+}
+class NumProcess implements Process<Integer,Integer>{
+    @Override
+    public Integer process(Integer integer) {
+        return integer*2;
+    }
+}
+class StringProcess implements Process<Process,String>{
+    @Override
+    public String process(Process process) {
+        return "NO."+process.process(3);
+    }
+    public String process() {
+        //使用到数据处理业务：
+        NumProcess numProcess = new NumProcess();
+        return "NO."+numProcess.process(3);
+    }
+}

transactional-demo/src/main/java/nl/org/transactionaldemo/server/事务/事务注解/GenCodeServiceImpl.java

@@ -0,0 +1,84 @@
+package nl.org.transactionaldemo.server.事务.事务注解;
+
+import org.springframework.stereotype.Service;
+
+@Service
+public class GenCodeServiceImpl  {
+
+
+//    @Override
+//    @Transactional(propagation = Propagation.REQUIRES_NEW)
+//    public String codeDemo(Map form) {
+//        String code = (String) form.get("code");
+//        String id = this.queryIdByCode(code);
+//        //如果flag=1就执行更新数据库的操作
+//        String flag = (String) form.get("flag");
+//        WQLObject wo = WQLObject.getWQLObject("sys_code_rule_detail");
+//        JSONArray ja = wo.query("code_rule_id = '" + id + "' order by sort_num FOR UPDATE").getResultJSONArray(0);
+//        String demo = "";
+//        boolean is_same = true;
+//        for (int i = 0; i < ja.size(); i++) {
+//            String value = "";
+//            JSONObject jo = ja.getJSONObject(i);
+//            //固定直接取值
+//            if (jo.getString("type").equals("01")) {
+//                value = jo.getString("init_value");
+//            }
+//            //日期判断数据库的值与当前值是否相同来决定顺序的值
+//            if (jo.getString("type").equals("02")) {
+//                String current_value = jo.getString("current_value");
+//                Date date = DateUtil.date();
+//                String format = jo.getString("format");
+//                String now_date = DateUtil.format(date, format);
+//                if (!now_date.equals(current_value)) {
+//                    is_same = false;
+//                }
+//                if (flag.equals("1")) {
+//                    jo.put("init_value", now_date);
+//                    jo.put("current_value", now_date);
+//                }
+//                value = now_date;
+//            }
+//            //顺序的值：如果日期一样就+步长，等于最大值就归为初始值；日期不一样就归为初始值
+//            if (jo.getString("type").equals("03")) {
+//                String num_value = "";
+//                int step = jo.getInteger("step");
+//                Long max_value = jo.getLong("max_value");
+//                if (!is_same || (jo.getLongValue("current_value") + step > max_value)) {
+//                    num_value = jo.getString("init_value");
+//                } else {
+//                    num_value = (jo.getInteger("current_value") + step) + "";
+//                }
+//                int size = num_value.length();
+//                int length = jo.getInteger("length");
+//                String fillchar = jo.getString("fillchar");
+//                for (int m = 0; m < (length - size); m++) {
+//                    value += fillchar;
+//                }
+//                value += num_value;
+//                if (flag.equals("1")) {
+//                    if (!is_same) {
+//                        int init_value = jo.getInteger("init_value");
+//                        if (StrUtil.isEmpty((init_value + ""))) {
+//                            throw new BadRequestException("请完善编码数值的初始值！");
+//                        }
+//                        jo.put("current_value", init_value + "");
+//                    } else {
+//                        int num_curr = jo.getInteger("current_value");
+//                        if (num_curr >= max_value) {
+//                            num_curr = jo.getInteger("init_value");
+//                            jo.put("current_value", num_curr + "");
+//                        }else{
+//                            jo.put("current_value", (num_curr + step) + "");
+//                        }
+//                    }
+//                }
+//            }
+//            demo += value;
+//            if (flag.equals("1")) {
+//                wo.update(jo);
+//            }
+//        }
+//        return demo;
+//    }
+}

transactional-demo/src/main/java/nl/org/transactionaldemo/server/事务/编程事务/TransationDemo.java

@@ -0,0 +1,132 @@
+package nl.org.transactionaldemo.server.事务.编程事务;
+
+import cn.hutool.core.util.IdUtil;
+import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.JSONObject;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.TransactionDefinition;
+import org.springframework.transaction.TransactionStatus;
+import org.springframework.transaction.support.DefaultTransactionDefinition;
+import org.springframework.util.CollectionUtils;
+import java.util.*;
+import java.util.function.BiFunction;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+
+/*
+ * 分段回回滚：
+ * 注意事项：
+ * 1.思考资源释放问题，spring是怎么释放资源
+ * 2.为什么外层需要加@Transactional 手写编程事务不会报错，原理是什么
+ * 3.封装手写编程事务，只让用户关注自身业务代码。可以参考.jdk8特性：Function等函数表达式的使用
+ * 4.jdk8特性：stream流管道处理替换for循环的学习
+ */
+public class TransationDemo {
+
+    //分批回滚：每个for循环都会占用链接
+    @Autowired
+    private PlatformTransactionManager txManager;
+
+//    @Transactional
+    public void creteTask(JSONArray request){
+
+        List<TransactionStatus> statusCollent = new ArrayList<>();
+        try {
+            HashMap<String, TransactionStatus> map = new HashMap<>();
+            for (int i = 0; i < request.size(); i++) {
+                //生成新事务
+                JSONObject param = request.getJSONObject(i);
+                DefaultTransactionDefinition def = new DefaultTransactionDefinition();
+                def.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);
+                TransactionStatus status = txManager.getTransaction(def);
+                String taskId = IdUtil.randomUUID();
+                //业务代码，生成任务
+                //bussTab.insert(param)
+                //taskTab.insert(taskId);
+                map.put(taskId,status);
+                statusCollent.add(status);
+            }
+            //acs反馈异常taskid
+            List<String> errorTaskIds = new ArrayList<>();
+            errorTaskIds.add("1232");
+            errorTaskIds.add("3224");
+            List<TransactionStatus> errCollect = map.entrySet().stream()
+                    .filter(tmap -> errorTaskIds.contains(tmap.getKey()))
+                    .map(tmap -> tmap.getValue())
+                    .collect(Collectors.toList());
+            //异常的资源回滚
+            for (TransactionStatus status : errCollect) {
+                statusCollent.remove(status);
+                txManager.rollback(status);
+            }
+        }finally {
+            //剩余资源资全部提交
+           if (!CollectionUtils.isEmpty(statusCollent)){
+               for (TransactionStatus value : statusCollent) {
+                   txManager.commit(value);
+               }
+           }
+        }
+    }
+}
+
+//封装参考
+class TransactionManagerUtil{
+
+    public static void main(String[] args) {
+        //demo：
+        JSONArray request = new JSONArray();
+        TransactionManagerUtil.openTransaction((req, allTransactionConsumer) -> {
+            for (Object param : req) {
+                String taskId = UUID.randomUUID().toString();
+                allTransactionConsumer.accept(taskId);
+                //业务代码，生成任务
+                //bussTab.insert(param)
+                //taskTab.insert(taskId);
+            }
+            //acs反馈异常taskid
+            ArrayList errorTask = new ArrayList();
+            return  errorTask;
+        },request);
+    }
+
+
+    static Object openTransaction(BiFunction<JSONArray, Consumer<String>,List> function, JSONArray request){
+        PlatformTransactionManager txManager = null; //SpringContextHolder.getBean(PlatformTransactionManager.class);
+        Map<String, TransactionStatus> statusMap = new HashMap<>();
+        List<TransactionStatus> errTask;
+        try {
+            //创建所有事务集合
+            Consumer<String> allTransactionConsumer = task -> {
+                DefaultTransactionDefinition def = new DefaultTransactionDefinition();
+                def.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);
+                TransactionStatus status = txManager.getTransaction(def);
+                statusMap.put(task,status);
+            };
+            //业务
+            errTask = function.apply(request,allTransactionConsumer);
+            //过滤异常事务的任务id
+            List<TransactionStatus> collect = statusMap.entrySet().stream()
+                    .filter(tmap -> errTask.contains(tmap.getKey()))
+                    .map(tmap -> tmap.getValue())
+                    .collect(Collectors.toList());
+            for (TransactionStatus status : collect) {
+                statusMap.remove(status);
+                txManager.rollback(status);
+            }
+        }finally {
+            //释放剩余资源
+            if (!CollectionUtils.isEmpty(statusMap)){
+                for (TransactionStatus value : statusMap.values()) {
+                    txManager.commit(value);
+                }
+            }
+        }
+        return null;
+    }
+}
+
+
+//封装参考
+

transactional-demo/src/main/java/nl/org/transactionaldemo/server/锁/SyncController.java

@@ -0,0 +1,31 @@
+package nl.org.transactionaldemo.server.锁;
+
+import com.alibaba.fastjson.JSONObject;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/*
+ * @author ZZQ
+ * @Date 2023/4/19 12:55
+ */
+@RestController
+@RequestMapping("/sync")
+public class SyncController {
+
+    @RequestMapping("/block")
+    public String syncBlock(@RequestBody JSONObject param) throws InterruptedException {
+        /**
+         * 数据处理过程：
+         * 通过类型解析器解析输入流：根据targetType生成参数对象：newInstance;
+         * String str = currLen == 0 ? "" : new String(this._currentSegment, 0, currLen);
+         */
+        synchronized (param.getString("type")){
+            System.out.println(System.identityHashCode(param.getString("type")));
+            System.out.println(System.identityHashCode(param.getString("type").intern()));
+            Thread.sleep(5000);
+            System.out.println("----------"+Thread.currentThread().getName()+"----------");
+            return param.getString("type")+" sucess!!!";
+        }
+    }
+}

transactional-demo/src/main/resources/application.yml

@@ -0,0 +1,47 @@
+
+spring:
+  datasource:
+    druid:
+      db-type: com.alibaba.druid.pool.DruidDataSource
+      driverClassName: com.mysql.cj.jdbc.Driver
+      #url: jdbc:log4jdbc:mysql://${DB_HOST:localhost}:${DB_PORT:3306}/${DB_NAME:hl_one_mes}?serverTimezone=Asia/Shanghai&characterEncoding=utf8&useSSL=false&useOldAliasMetadataBehavior=true&allowPublicKeyRetrieval=true&useSSL=false
+      url: jdbc:mysql://${DB_HOST:192.168.81.252}:${DB_PORT:3306}/${DB_NAME:hl_one_mes}?serverTimezone=Asia/Shanghai&characterEncoding=utf8&useSSL=false&useOldAliasMetadataBehavior=true&allowPublicKeyRetrieval=true&useSSL=false
+      username: ${DB_USER:root}
+      #password: ${DB_PWD:P@ssw0rd}
+      #password: ${DB_PWD:root}
+      password: ${DB_PWD:Root.123456}
+      # 初始连接数
+      initial-size: 5
+      # 最小连接数
+      min-idle: 15
+      # 最大连接数
+      max-active: 30
+      # 是否自动回收超时连接
+      remove-abandoned: true
+      # 超时时间(以秒数为单位)
+      remove-abandoned-timeout: 180
+      # 获取连接超时时间
+      max-wait: 3000
+      # 连接有效性检测时间
+      time-between-eviction-runs-millis: 60000
+      # 连接在池中最小生存的时间
+      min-evictable-idle-time-millis: 300000
+      # 连接在池中最大生存的时间
+      max-evictable-idle-time-millis: 900000
+      # 指明连接是否被空闲连接回收器(如果有)进行检验.如果检测失败,则连接将被从池中去除
+      test-while-idle: true
+      # 指明是否在从池中取出连接前进行检验,如果检验失败, 则从池中去除连接并尝试取出另一个
+      test-on-borrow: true
+      # 是否在归还到池中前进行检验
+      test-on-return: false
+      # 检测连接是否有效
+      validation-query: select 1
+      # 配置监控统计
+      webStatFilter:
+        enabled: true
+      stat-view-servlet:
+        enabled: true
+        url-pattern: /druid/*
+        reset-enable: false
+      filters:
+        DruidFilter,stat

transactional-demo/src/test/java/nl/org/transactionaldemo/TransactionalDemoApplicationTests.java

@@ -0,0 +1,13 @@
+package nl.org.transactionaldemo;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class TransactionalDemoApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}