first commit

.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/

.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar

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} $MAVEN_CONFIG "$@"

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%

pom.xml

@@ -0,0 +1,82 @@
+<?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>2.6.7</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>cn.com.zyjblogs</groupId>
+    <artifactId>Chat</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>Chat</name>
+    <description>Demo project for Spring Boot</description>
+    <properties>
+        <java.version>11</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-redis</artifactId>
+            <version>2.6.7</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <!-- 集成MP依赖 -->
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
+            <version>3.5.1</version>
+        </dependency>
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty-all</artifactId>
+            <version>4.1.76.Final</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/com.alibaba/druid-spring-boot-starter -->
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid-spring-boot-starter</artifactId>
+            <version>1.2.9</version>
+        </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>

src/main/java/cn/com/zyjblogs/chat/ChatApplication.java

@@ -0,0 +1,15 @@
+package cn.com.zyjblogs.chat;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.EnableAsync;
+
+@SpringBootApplication(scanBasePackages="cn.com.zyjblogs.chat")
+@EnableAsync
+public class ChatApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(ChatApplication.class, args);
+    }
+
+}

src/main/java/cn/com/zyjblogs/chat/config/mybatis/MyBatisPlusConfig.java

@@ -0,0 +1,28 @@
+package cn.com.zyjblogs.chat.config.mybatis;
+
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @description: TODO
+ * @className: MyBatisPageConfig
+ * @date: 2019/10/31 13:18
+ * @author: Xincan Jiang
+ * @version: 1.0
+ */
+@Configuration
+@MapperScan("cn.com.zyjblogs.chat.server.**.mapper")
+public class MyBatisPlusConfig {
+
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
+        return interceptor;
+    }
+
+}

src/main/java/cn/com/zyjblogs/chat/config/rest/RestTemplateConfig.java

@@ -0,0 +1,29 @@
+package cn.com.zyjblogs.chat.config.rest;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.SimpleClientHttpRequestFactory;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * @Copyright (C), 2018, 北京同创永益科技发展有限公司
+ * @FileName: ResultCode
+ * @author: JiangXincan
+ * @Date: 2018-12-19 16:30:00
+ * @Description: rest配置
+ */
+@Slf4j
+@Configuration
+public class RestTemplateConfig {
+
+    @Bean("restTemplate")
+    public RestTemplate restTemplate() {
+        SimpleClientHttpRequestFactory simpleClientHttpRequestFactory = new SimpleClientHttpRequestFactory();
+        simpleClientHttpRequestFactory.setConnectTimeout(1000);
+        simpleClientHttpRequestFactory.setReadTimeout(1000);
+        return new RestTemplate(simpleClientHttpRequestFactory);
+    }
+
+
+}

src/main/java/cn/com/zyjblogs/chat/config/threadpool/ExecutorConfig.java

@@ -0,0 +1,57 @@
+package cn.com.zyjblogs.chat.config.threadpool;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+
+import java.util.concurrent.Executor;
+import java.util.concurrent.ThreadPoolExecutor;
+
+/**
+ * copyright (C), 2021, 北京同创永益科技发展有限公司
+ *
+ * @author zhuyijun
+ * @version 1.0.0
+ * <author>                <time>                  <version>                   <description>
+ * zhuyijun         2021/6/7 8:38               1.0                         线程池
+ * @program hatech-bcms-core
+ * @description 线程池
+ * @create 2021/6/7 8:38
+ */
+@Configuration
+@Slf4j
+public class ExecutorConfig {
+
+    @Value("${async.executor.thread.core_pool_size}")
+    private int corePoolSize;
+    @Value("${async.executor.thread.max_pool_size}")
+    private int maxPoolSize;
+    @Value("${async.executor.thread.queue_capacity}")
+    private int queueCapacity;
+    @Value("${async.executor.thread.name.prefix}")
+    private String namePrefix;
+
+    @Bean(name = "asyncServiceExecutor")
+    public Executor asyncServiceExecutor() {
+        log.info("start asyncServiceExecutor");
+        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+        //配置核心线程数
+        executor.setCorePoolSize(corePoolSize);
+        //配置最大线程数
+        executor.setMaxPoolSize(maxPoolSize);
+        //配置队列大小
+        executor.setQueueCapacity(queueCapacity);
+        //配置线程池中的线程的名称前缀
+        executor.setThreadNamePrefix(namePrefix);
+
+        // rejection-policy：当pool已经达到max size的时候，如何处理新任务
+        // CALLER_RUNS：不在新线程中执行任务，而是有调用者所在的线程来执行
+        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
+        //执行初始化
+        executor.initialize();
+        log.info("asyncServiceExecutor init over.....");
+        return executor;
+    }
+}

src/main/java/cn/com/zyjblogs/chat/netty/MessageProtocol.java

@@ -0,0 +1,37 @@
+package cn.com.zyjblogs.chat.netty;
+
+import java.util.Arrays;
+
+public class MessageProtocol {
+    private int len;
+    private byte[] content;
+
+    public int getLen() {
+        return len;
+    }
+
+    public void setLen(int len) {
+        this.len = len;
+    }
+
+    public byte[] getContent() {
+        return content;
+    }
+
+    public void setContent(byte[] content) {
+        this.content = content;
+    }
+    public MessageProtocol() {
+    }
+    public MessageProtocol(int len, byte[] content) {
+        this.len = len;
+        this.content = content;
+    }
+    @Override
+    public String toString() {
+        return "MessageProtocol{" +
+                "len=" + len +
+                ", content=" + Arrays.toString(content) +
+                '}';
+    }
+}

src/main/java/cn/com/zyjblogs/chat/netty/MyMessageDecoder.java

@@ -0,0 +1,26 @@
+package cn.com.zyjblogs.chat.netty;
+
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.ReplayingDecoder;
+
+import java.util.List;
+
+public class MyMessageDecoder extends ReplayingDecoder<MessageProtocol> {
+
+
+    @Override
+    protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
+        System.out.println("\nMyMessageDecoder方法被调用 解码");
+        //需要将得到的二进制字节码 转成 MessageProtocol
+        int length = in.readInt();
+        byte[] content = new byte[length];
+        in.readBytes(content);
+        //封装成MessageProtocol对象，放入out中,传给下一个handler
+        MessageProtocol messageProtocol = new MessageProtocol();
+        messageProtocol.setLen(length);
+        messageProtocol.setContent(content);
+        out.add(messageProtocol);
+    }
+}

src/main/java/cn/com/zyjblogs/chat/netty/MyMessageEncoder.java

@@ -0,0 +1,16 @@
+package cn.com.zyjblogs.chat.netty;
+
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.MessageToByteEncoder;
+
+public class MyMessageEncoder extends MessageToByteEncoder<MessageProtocol> {
+
+    @Override
+    protected void encode(ChannelHandlerContext ctx, MessageProtocol msg, ByteBuf out) throws Exception {
+        System.out.println("\nMyMessageEncoder方法被调用 编码");
+        out.writeInt(msg.getLen());
+        out.writeBytes(msg.getContent());
+    }
+}

src/main/java/cn/com/zyjblogs/chat/netty/MyServerHandler.java

@@ -0,0 +1,36 @@
+package cn.com.zyjblogs.chat.netty;
+
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+import io.netty.util.CharsetUtil;
+
+import java.util.UUID;
+
+public class MyServerHandler extends SimpleChannelInboundHandler<MessageProtocol> {
+    private int count=0;
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
+        ctx.close();
+    }
+
+    @Override
+    protected void channelRead0(ChannelHandlerContext ctx, MessageProtocol msg) throws Exception {
+        //接收数据，并处理
+        System.out.println("服务端接收信息：");
+        System.out.println("长度="+msg.getLen());
+        System.out.println("内容="+new String(msg.getContent(),CharsetUtil.UTF_8));
+        System.out.println("服务器接收消息包数量="+(++this.count));
+
+        //回复消息
+        String responseContent = UUID.randomUUID().toString();
+        int responseLen = responseContent.getBytes(CharsetUtil.UTF_8).length;
+        MessageProtocol messageProtocol = new MessageProtocol();
+        messageProtocol.setLen(responseLen);
+        messageProtocol.setContent(responseContent.getBytes(CharsetUtil.UTF_8));
+
+        ctx.writeAndFlush(messageProtocol);
+
+    }
+}

src/main/java/cn/com/zyjblogs/chat/netty/NettyStartListener.java

@@ -0,0 +1,26 @@
+package cn.com.zyjblogs.chat.netty;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.Resource;
+
+/**
+ * 监听Spring容器启动完成，完成后启动Netty服务器
+ * @author Gjing
+ **/
+@Component
+public class NettyStartListener implements ApplicationRunner {
+    protected Logger logger = LoggerFactory.getLogger(NettyStartListener.class);
+    @Resource
+    private SocketServer socketServer;
+
+    @Override
+    public void run(ApplicationArguments args) {
+        logger.info("netty server thread start");
+        new Thread(socketServer).start();
+    }
+}

src/main/java/cn/com/zyjblogs/chat/netty/SocketHandler.java

@@ -0,0 +1,57 @@
+package cn.com.zyjblogs.chat.netty;
+
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+import io.netty.channel.group.ChannelGroup;
+import io.netty.channel.group.DefaultChannelGroup;
+import io.netty.util.concurrent.GlobalEventExecutor;
+import lombok.extern.slf4j.Slf4j;
+
+/**
+ * Socket拦截器，用于处理客户端的行为
+ *
+ * @author Gjing
+ **/
+@Slf4j
+public class SocketHandler extends ChannelInboundHandlerAdapter {
+    public static final ChannelGroup clients = new DefaultChannelGroup(GlobalEventExecutor.INSTANCE);
+
+    /**
+     * 读取到客户端发来的消息
+     *
+     * @param ctx ChannelHandlerContext
+     * @param msg msg
+     * @throws Exception e
+     */
+    @Override
+    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
+        // 由于我们配置的是 字节数组 编解码器，所以这里取到的用户发来的数据是 byte数组
+        byte[] data = (byte[]) msg;
+        log.info("收到消息: " + new String(data));
+        // 给其他人转发消息
+        for (Channel client : clients) {
+            if (!client.equals(ctx.channel())) {
+                client.writeAndFlush(data);
+            }
+        }
+    }
+
+    @Override
+    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
+        log.info("新的客户端链接：" + ctx.channel().id().asShortText());
+        clients.add(ctx.channel());
+    }
+
+    @Override
+    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
+        clients.remove(ctx.channel());
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
+        cause.printStackTrace();
+        ctx.channel().close();
+        clients.remove(ctx.channel());
+    }
+}

src/main/java/cn/com/zyjblogs/chat/netty/SocketInitializer.java

@@ -0,0 +1,23 @@
+package cn.com.zyjblogs.chat.netty;
+
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.socket.SocketChannel;
+import org.springframework.stereotype.Service;
+
+
+/**
+ * Socket 初始化器，每一个Channel进来都会调用这里的 InitChannel 方法
+ * @author Gjing
+ **/
+@Service
+public class SocketInitializer extends ChannelInitializer<SocketChannel> {
+    @Override
+    protected void initChannel(SocketChannel ch)  {
+        ch.pipeline()
+                //解码器
+                .addLast(new MyMessageDecoder())
+                //编码器
+                .addLast(new MyMessageEncoder())
+                .addLast(new MyServerHandler());
+    }
+}

src/main/java/cn/com/zyjblogs/chat/netty/SocketServer.java

@@ -0,0 +1,71 @@
+package cn.com.zyjblogs.chat.netty;
+
+import io.netty.bootstrap.ServerBootstrap;
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.nio.NioServerSocketChannel;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.io.Closeable;
+
+/**
+ * @author Gjing
+ **/
+@Slf4j
+@Service
+public class SocketServer implements Runnable, Closeable {
+    @Resource
+    private SocketInitializer socketInitializer;
+
+    /**
+     * netty服务监听端口
+     */
+    @Value("${spring.netty.port:8808}")
+    private  int port;
+    /**
+     * 主线程组数量
+     */
+    @Value("${spring.netty.bossThread:1}")
+    private int bossThread;
+    private ServerBootstrap serverBootstrap = new ServerBootstrap();
+    // 创建两个线程组，bossGroup为接收请求的线程组，一般1-2个就行
+    private NioEventLoopGroup bossGroup = new NioEventLoopGroup(this.bossThread);
+    // 实际工作的线程组
+    private NioEventLoopGroup workerGroup = new NioEventLoopGroup();
+
+
+    /**
+     * 初始化netty配置
+     */
+    private void init() {
+        this.serverBootstrap.group(bossGroup, workerGroup) // 两个线程组加入进来
+                .channel(NioServerSocketChannel.class)  // 配置为nio类型
+                .childHandler(this.socketInitializer); // 加入自己的初始化器
+        //对关闭通道进行监听
+        ChannelFuture cf = this.serverBootstrap.bind(this.port);
+        //对关闭通道进行监听
+        try {
+            cf.channel().closeFuture().sync();
+        } catch (InterruptedException e) {
+        }
+    }
+    /**
+     * 启动netty服务器
+     */
+    @Override
+    public void run() {
+        init();
+    }
+
+    @Override
+    public void close() {
+        //优雅关闭
+        log.info("netty closing");
+        bossGroup.shutdownGracefully();
+        workerGroup.shutdownGracefully();
+        log.info("netty close");
+    }
+}

src/main/resources/application.yml

@@ -0,0 +1,148 @@
+server:
+  port: 8091
+
+
+  netty:
+    port: 8808
+    bossThread: 1
+
+logging:
+  level:
+    root: INFO
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: "*"
+
+  endpoint:
+    shutdown:
+      enabled: true
+
+# 服务名称配置(同时测名称也是注册到eureka中心的名称)
+spring:
+  application:
+    name: hatech-bcms-core
+  zipkin:
+    #base-url:当你设置sleuth-cli收集信息后通过http传输到zinkin-server时，需要在这里配置
+    base-url: http://10.27.5.129:9411
+    enabled: true
+  sleuth:
+    sampler:
+      #收集追踪信息的比率，如果是0.1则表示只记录10%的追踪数据，如果要全部追踪，设置为1（实际场景不推荐，因为会造成不小的性能消耗）
+      probability: 1
+  # 异常配置 SpringBoot 当出现 404 错误时, 直接抛出异常
+  mvc:
+    throw-exception-if-no-handler-found: true
+
+  # 数据源配置
+  datasource:
+    address: 127.0.0.1:3306/chat
+    useSSL: false
+    druid:
+      type: com.alibaba.druid.pool.DruidDataSource
+      driver-class-name: com.mysql.cj.jdbc.Driver
+      # mysql7连接方式
+      url: jdbc:mysql://${spring.datasource.address}?useSSL=${spring.datasource.useSSL}&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&transformedBitIsBoolean=true&autoReconnect=true&failOverReadOnly=false&allowMultiQueries=true&serverTimezone=GMT&rewriteBatchedStatements=true
+      username: root
+      password: 123456
+      initialSize: 5
+      minIdle: 5
+      maxActive: 20
+      # 配置获取连接等待超时的时间
+      maxWait: 60000
+      # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
+      timeBetweenEvictionRunsMillis: 60000
+      #配置连接在池中的最小生存时间
+      minEvictableIdleTimeMillis: 300000
+      validationQuery: SELECT '1'
+      testWhileIdle: true
+      testOnBorrow: false
+      testOnReturn: false
+      # 打开PSCache，并且指定每个连接上PSCache的大小
+      poolPreparedStatements: true
+      maxPoolPreparedStatementPerConnectionSize: 20
+      # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
+      filters: stat,slf4j
+      # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
+      connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
+      sql-script-encoding: utf-8
+      # 合并多个DruidDataSource的监控数据
+      useGlobalDataSourceStat: true
+      # 配置监控界面
+      web-stat-filter:
+        enabled: true
+        url-pattern: /*
+        exclusions: /druid/*,*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico
+        session-stat-enable: true
+        session-stat-max-count: 10
+        principal-session-name: session_name
+        principal-cookie-name: cookie_name
+      stat-view-servlet:
+        enabled: true
+        url-pattern: /druid/*
+        reset-enable: false
+        login-username: hatech
+        login-password: hatech
+        allow: 127.0.0.1,192.168.1.82
+        deny: 192.168.1.81
+      aop-patterns: cn.com.hatech.bcms.core.*.controller.*.*,cn.com.hatech.bcms.core.*.mapper.*.*,cn.com.hatech.bcms.core.*.service.*.*
+
+
+  # redis配置
+  redis:
+    database: 0
+    host: 127.0.0.1
+    port: 6379
+    jedis:
+      pool:
+        max-active: 20
+# 异常配置 SpringBoot 不要为我们工程中的资源文件建立映射.
+  web:
+    resources:
+      add-mappings: false
+  # 文件上传配置
+  servlet:
+    multipart:
+      max-file-size: 50MB
+      # 设置单次请求的文件的总大小
+      max-request-size: 100MB
+
+
+mybatis-plus:
+  mapper-locations: classpath*:mapper/**/*.xml
+  # 以下配置均有默认值,可以不设置
+  global-config:
+    db-config:
+      #主键类 * AUTO: 数据库ID自增; INPUT: 用户输入ID; ID_WORKER: 全局唯一ID, Long类型的主键; ID_WORKER_STR: 字符串全局唯一ID; UUID: 全局唯一ID，UUID类型的主键; NONE: 该类型为未设置主键类型
+      id-type: ASSIGN_ID
+      #字段策略 IGNORED:"忽略判断"  NOT_NULL:"非 NULL 判断")  NOT_EMPTY:"非空判断"
+      field-strategy: NOT_EMPTY
+      #数据库类型
+      db-type: MYSQL
+  configuration:
+    # 是否开启自动驼峰命名规则映射:从数据库列名到Java属性驼峰命名的类似映射
+    map-underscore-to-camel-case: true
+    # 如果查询结果中包含空值的列，则 MyBatis 在映射的时候，不会映射这个字段
+    call-setters-on-nulls: false
+    # 这个配置会将执行的sql打印出来，在开发或测试的时候可以用
+    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
+
+    # 生产环境开启，不会打印sql执行日志
+    #log-impl: org.apache.ibatis.logging.nologging.NoLoggingImpl
+    data-filter: true
+
+# 异步线程配置
+async:
+  executor:
+    thread:
+      # 配置核心线程数
+      core_pool_size: 5
+      # 配置最大线程数
+      max_pool_size: 10
+      # 配置队列大小
+      queue_capacity: 50
+      # 配置线程池中的线程的名称前缀
+      name:
+        prefix: async-service-

src/main/resources/banner.txt

@@ -0,0 +1,3 @@
+///////////////
+    逝水无痕
+////////////

src/test/java/cn/com/zyjblogs/chat/ChatApplicationTests.java

@@ -0,0 +1,13 @@
+package cn.com.zyjblogs.chat;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class ChatApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}