├── .idea ├── .gitignore ├── compiler.xml ├── encodings.xml ├── jarRepositories.xml ├── misc.xml ├── runConfigurations.xml └── vcs.xml ├── MyNotes-design ├── README.MD ├── design-demo-chain │ ├── .gitignore │ ├── .mvn │ │ └── wrapper │ │ │ ├── maven-wrapper.jar │ │ │ └── maven-wrapper.properties │ ├── mvnw │ ├── mvnw.cmd │ ├── pom.xml │ └── src │ │ ├── main │ │ ├── java │ │ │ └── com │ │ │ │ └── codertao │ │ │ │ └── design │ │ │ │ └── chain │ │ │ │ ├── AutoHashUtil.java │ │ │ │ ├── DesignDemoChainApplication.java │ │ │ │ ├── PackageSpec.java │ │ │ │ ├── Test.java │ │ │ │ ├── case1 │ │ │ │ ├── ErrorCode.java │ │ │ │ ├── HandlerClient.java │ │ │ │ ├── ProductCheckHandlerConfig.java │ │ │ │ ├── ProductService.java │ │ │ │ ├── ProductVO.java │ │ │ │ ├── Result.java │ │ │ │ └── handler │ │ │ │ │ ├── AbstractCheckHandler.java │ │ │ │ │ ├── NullValueCheckHandler.java │ │ │ │ │ ├── PriceCheckHandler.java │ │ │ │ │ └── StockCheckHandler.java │ │ │ │ ├── case2 │ │ │ │ ├── AbstractFlowHandler.java │ │ │ │ ├── HandlerClient.java │ │ │ │ ├── MoneyPayVO.java │ │ │ │ ├── OneLevelFlowHandler.java │ │ │ │ ├── ThreeLevelFlowHandler.java │ │ │ │ └── TwoLevelFlowHandler.java │ │ │ │ └── case3 │ │ │ │ ├── AbstractHandler.java │ │ │ │ ├── CartParamCheckHandler.java │ │ │ │ └── Sku.java │ │ └── resources │ │ │ └── application.properties │ │ └── test │ │ └── java │ │ └── com │ │ └── codertao │ │ └── design │ │ └── chain │ │ └── DesignDemoChainApplicationTests.java └── pom.xml ├── MyNotes-java ├── README.MD └── pom.xml ├── README.MD └── pom.xml /.idea/.gitignore: -------------------------------------------------------------------------------- 1 | # 默认忽略的文件 2 | /shelf/ 3 | /workspace.xml 4 | # 基于编辑器的 HTTP 客户端请求 5 | /httpRequests/ 6 | # Datasource local storage ignored files 7 | /dataSources/ 8 | /dataSources.local.xml 9 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 19 | 20 | -------------------------------------------------------------------------------- /.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/jarRepositories.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 9 | 10 | 14 | 15 | 19 | 20 | 24 | 25 | 29 | 30 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 11 | 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 9 | 10 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /MyNotes-design/README.MD: -------------------------------------------------------------------------------- 1 | #最实用的设计模式专栏 -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/.gitignore: -------------------------------------------------------------------------------- 1 | HELP.md 2 | target/ 3 | !.mvn/wrapper/maven-wrapper.jar 4 | !**/src/main/**/target/ 5 | !**/src/test/**/target/ 6 | 7 | ### STS ### 8 | .apt_generated 9 | .classpath 10 | .factorypath 11 | .project 12 | .settings 13 | .springBeans 14 | .sts4-cache 15 | 16 | ### IntelliJ IDEA ### 17 | .idea 18 | *.iws 19 | *.iml 20 | *.ipr 21 | 22 | ### NetBeans ### 23 | /nbproject/private/ 24 | /nbbuild/ 25 | /dist/ 26 | /nbdist/ 27 | /.nb-gradle/ 28 | build/ 29 | !**/src/main/**/build/ 30 | !**/src/test/**/build/ 31 | 32 | ### VS Code ### 33 | .vscode/ 34 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/.mvn/wrapper/maven-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rongtao7/MyNotes/87f6c445096076d88c89bb8b1d5aa12a7a378841/MyNotes-design/design-demo-chain/.mvn/wrapper/maven-wrapper.jar -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/.mvn/wrapper/maven-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip 2 | wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar 3 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/mvnw: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | # ---------------------------------------------------------------------------- 3 | # Licensed to the Apache Software Foundation (ASF) under one 4 | # or more contributor license agreements. See the NOTICE file 5 | # distributed with this work for additional information 6 | # regarding copyright ownership. The ASF licenses this file 7 | # to you under the Apache License, Version 2.0 (the 8 | # "License"); you may not use this file except in compliance 9 | # with the License. You may obtain a copy of the License at 10 | # 11 | # https://www.apache.org/licenses/LICENSE-2.0 12 | # 13 | # Unless required by applicable law or agreed to in writing, 14 | # software distributed under the License is distributed on an 15 | # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 | # KIND, either express or implied. See the License for the 17 | # specific language governing permissions and limitations 18 | # under the License. 19 | # ---------------------------------------------------------------------------- 20 | 21 | # ---------------------------------------------------------------------------- 22 | # Maven Start Up Batch script 23 | # 24 | # Required ENV vars: 25 | # ------------------ 26 | # JAVA_HOME - location of a JDK home dir 27 | # 28 | # Optional ENV vars 29 | # ----------------- 30 | # M2_HOME - location of maven2's installed home dir 31 | # MAVEN_OPTS - parameters passed to the Java VM when running Maven 32 | # e.g. to debug Maven itself, use 33 | # set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 34 | # MAVEN_SKIP_RC - flag to disable loading of mavenrc files 35 | # ---------------------------------------------------------------------------- 36 | 37 | if [ -z "$MAVEN_SKIP_RC" ] ; then 38 | 39 | if [ -f /usr/local/etc/mavenrc ] ; then 40 | . /usr/local/etc/mavenrc 41 | fi 42 | 43 | if [ -f /etc/mavenrc ] ; then 44 | . /etc/mavenrc 45 | fi 46 | 47 | if [ -f "$HOME/.mavenrc" ] ; then 48 | . "$HOME/.mavenrc" 49 | fi 50 | 51 | fi 52 | 53 | # OS specific support. $var _must_ be set to either true or false. 54 | cygwin=false; 55 | darwin=false; 56 | mingw=false 57 | case "`uname`" in 58 | CYGWIN*) cygwin=true ;; 59 | MINGW*) mingw=true;; 60 | Darwin*) darwin=true 61 | # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home 62 | # See https://developer.apple.com/library/mac/qa/qa1170/_index.html 63 | if [ -z "$JAVA_HOME" ]; then 64 | if [ -x "/usr/libexec/java_home" ]; then 65 | export JAVA_HOME="`/usr/libexec/java_home`" 66 | else 67 | export JAVA_HOME="/Library/Java/Home" 68 | fi 69 | fi 70 | ;; 71 | esac 72 | 73 | if [ -z "$JAVA_HOME" ] ; then 74 | if [ -r /etc/gentoo-release ] ; then 75 | JAVA_HOME=`java-config --jre-home` 76 | fi 77 | fi 78 | 79 | if [ -z "$M2_HOME" ] ; then 80 | ## resolve links - $0 may be a link to maven's home 81 | PRG="$0" 82 | 83 | # need this for relative symlinks 84 | while [ -h "$PRG" ] ; do 85 | ls=`ls -ld "$PRG"` 86 | link=`expr "$ls" : '.*-> $.*$$'` 87 | if expr "$link" : '/.*' > /dev/null; then 88 | PRG="$link" 89 | else 90 | PRG="`dirname "$PRG"`/$link" 91 | fi 92 | done 93 | 94 | saveddir=`pwd` 95 | 96 | M2_HOME=`dirname "$PRG"`/.. 97 | 98 | # make it fully qualified 99 | M2_HOME=`cd "$M2_HOME" && pwd` 100 | 101 | cd "$saveddir" 102 | # echo Using m2 at $M2_HOME 103 | fi 104 | 105 | # For Cygwin, ensure paths are in UNIX format before anything is touched 106 | if $cygwin ; then 107 | [ -n "$M2_HOME" ] && 108 | M2_HOME=`cygpath --unix "$M2_HOME"` 109 | [ -n "$JAVA_HOME" ] && 110 | JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 111 | [ -n "$CLASSPATH" ] && 112 | CLASSPATH=`cygpath --path --unix "$CLASSPATH"` 113 | fi 114 | 115 | # For Mingw, ensure paths are in UNIX format before anything is touched 116 | if $mingw ; then 117 | [ -n "$M2_HOME" ] && 118 | M2_HOME="`(cd "$M2_HOME"; pwd)`" 119 | [ -n "$JAVA_HOME" ] && 120 | JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" 121 | fi 122 | 123 | if [ -z "$JAVA_HOME" ]; then 124 | javaExecutable="`which javac`" 125 | if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '$[^ ]*$'`" = "no" ]; then 126 | # readlink(1) is not available as standard on Solaris 10. 127 | readLink=`which readlink` 128 | if [ ! `expr "$readLink" : '$[^ ]*$'` = "no" ]; then 129 | if $darwin ; then 130 | javaHome="`dirname \"$javaExecutable\"`" 131 | javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" 132 | else 133 | javaExecutable="`readlink -f \"$javaExecutable\"`" 134 | fi 135 | javaHome="`dirname \"$javaExecutable\"`" 136 | javaHome=`expr "$javaHome" : '$.*$/bin'` 137 | JAVA_HOME="$javaHome" 138 | export JAVA_HOME 139 | fi 140 | fi 141 | fi 142 | 143 | if [ -z "$JAVACMD" ] ; then 144 | if [ -n "$JAVA_HOME" ] ; then 145 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 146 | # IBM's JDK on AIX uses strange locations for the executables 147 | JAVACMD="$JAVA_HOME/jre/sh/java" 148 | else 149 | JAVACMD="$JAVA_HOME/bin/java" 150 | fi 151 | else 152 | JAVACMD="`\\unset -f command; \\command -v java`" 153 | fi 154 | fi 155 | 156 | if [ ! -x "$JAVACMD" ] ; then 157 | echo "Error: JAVA_HOME is not defined correctly." >&2 158 | echo " We cannot execute $JAVACMD" >&2 159 | exit 1 160 | fi 161 | 162 | if [ -z "$JAVA_HOME" ] ; then 163 | echo "Warning: JAVA_HOME environment variable is not set." 164 | fi 165 | 166 | CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher 167 | 168 | # traverses directory structure from process work directory to filesystem root 169 | # first directory with .mvn subdirectory is considered project base directory 170 | find_maven_basedir() { 171 | 172 | if [ -z "$1" ] 173 | then 174 | echo "Path not specified to find_maven_basedir" 175 | return 1 176 | fi 177 | 178 | basedir="$1" 179 | wdir="$1" 180 | while [ "$wdir" != '/' ] ; do 181 | if [ -d "$wdir"/.mvn ] ; then 182 | basedir=$wdir 183 | break 184 | fi 185 | # workaround for JBEAP-8937 (on Solaris 10/Sparc) 186 | if [ -d "${wdir}" ]; then 187 | wdir=`cd "$wdir/.."; pwd` 188 | fi 189 | # end of workaround 190 | done 191 | echo "${basedir}" 192 | } 193 | 194 | # concatenates all lines of a file 195 | concat_lines() { 196 | if [ -f "$1" ]; then 197 | echo "$(tr -s '\n' ' ' < "$1")" 198 | fi 199 | } 200 | 201 | BASE_DIR=`find_maven_basedir "$(pwd)"` 202 | if [ -z "$BASE_DIR" ]; then 203 | exit 1; 204 | fi 205 | 206 | ########################################################################################## 207 | # Extension to allow automatically downloading the maven-wrapper.jar from Maven-central 208 | # This allows using the maven wrapper in projects that prohibit checking in binary data. 209 | ########################################################################################## 210 | if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then 211 | if [ "$MVNW_VERBOSE" = true ]; then 212 | echo "Found .mvn/wrapper/maven-wrapper.jar" 213 | fi 214 | else 215 | if [ "$MVNW_VERBOSE" = true ]; then 216 | echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." 217 | fi 218 | if [ -n "$MVNW_REPOURL" ]; then 219 | jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 220 | else 221 | jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 222 | fi 223 | while IFS="=" read key value; do 224 | case "$key" in (wrapperUrl) jarUrl="$value"; break ;; 225 | esac 226 | done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" 227 | if [ "$MVNW_VERBOSE" = true ]; then 228 | echo "Downloading from: $jarUrl" 229 | fi 230 | wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" 231 | if $cygwin; then 232 | wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` 233 | fi 234 | 235 | if command -v wget > /dev/null; then 236 | if [ "$MVNW_VERBOSE" = true ]; then 237 | echo "Found wget ... using wget" 238 | fi 239 | if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then 240 | wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath" 241 | else 242 | wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath" 243 | fi 244 | elif command -v curl > /dev/null; then 245 | if [ "$MVNW_VERBOSE" = true ]; then 246 | echo "Found curl ... using curl" 247 | fi 248 | if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then 249 | curl -o "$wrapperJarPath" "$jarUrl" -f 250 | else 251 | curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f 252 | fi 253 | 254 | else 255 | if [ "$MVNW_VERBOSE" = true ]; then 256 | echo "Falling back to using Java to download" 257 | fi 258 | javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" 259 | # For Cygwin, switch paths to Windows format before running javac 260 | if $cygwin; then 261 | javaClass=`cygpath --path --windows "$javaClass"` 262 | fi 263 | if [ -e "$javaClass" ]; then 264 | if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then 265 | if [ "$MVNW_VERBOSE" = true ]; then 266 | echo " - Compiling MavenWrapperDownloader.java ..." 267 | fi 268 | # Compiling the Java class 269 | ("$JAVA_HOME/bin/javac" "$javaClass") 270 | fi 271 | if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then 272 | # Running the downloader 273 | if [ "$MVNW_VERBOSE" = true ]; then 274 | echo " - Running MavenWrapperDownloader.java ..." 275 | fi 276 | ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") 277 | fi 278 | fi 279 | fi 280 | fi 281 | ########################################################################################## 282 | # End of extension 283 | ########################################################################################## 284 | 285 | export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} 286 | if [ "$MVNW_VERBOSE" = true ]; then 287 | echo $MAVEN_PROJECTBASEDIR 288 | fi 289 | MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" 290 | 291 | # For Cygwin, switch paths to Windows format before running java 292 | if $cygwin; then 293 | [ -n "$M2_HOME" ] && 294 | M2_HOME=`cygpath --path --windows "$M2_HOME"` 295 | [ -n "$JAVA_HOME" ] && 296 | JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` 297 | [ -n "$CLASSPATH" ] && 298 | CLASSPATH=`cygpath --path --windows "$CLASSPATH"` 299 | [ -n "$MAVEN_PROJECTBASEDIR" ] && 300 | MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` 301 | fi 302 | 303 | # Provide a "standardized" way to retrieve the CLI args that will 304 | # work with both Windows and non-Windows executions. 305 | MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" 306 | export MAVEN_CMD_LINE_ARGS 307 | 308 | WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 309 | 310 | exec "$JAVACMD" \ 311 | $MAVEN_OPTS \ 312 | $MAVEN_DEBUG_OPTS \ 313 | -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ 314 | "-Dmaven.home=${M2_HOME}" \ 315 | "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ 316 | ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" 317 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/mvnw.cmd: -------------------------------------------------------------------------------- 1 | @REM ---------------------------------------------------------------------------- 2 | @REM Licensed to the Apache Software Foundation (ASF) under one 3 | @REM or more contributor license agreements. See the NOTICE file 4 | @REM distributed with this work for additional information 5 | @REM regarding copyright ownership. The ASF licenses this file 6 | @REM to you under the Apache License, Version 2.0 (the 7 | @REM "License"); you may not use this file except in compliance 8 | @REM with the License. You may obtain a copy of the License at 9 | @REM 10 | @REM https://www.apache.org/licenses/LICENSE-2.0 11 | @REM 12 | @REM Unless required by applicable law or agreed to in writing, 13 | @REM software distributed under the License is distributed on an 14 | @REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 | @REM KIND, either express or implied. See the License for the 16 | @REM specific language governing permissions and limitations 17 | @REM under the License. 18 | @REM ---------------------------------------------------------------------------- 19 | 20 | @REM ---------------------------------------------------------------------------- 21 | @REM Maven Start Up Batch script 22 | @REM 23 | @REM Required ENV vars: 24 | @REM JAVA_HOME - location of a JDK home dir 25 | @REM 26 | @REM Optional ENV vars 27 | @REM M2_HOME - location of maven2's installed home dir 28 | @REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands 29 | @REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending 30 | @REM MAVEN_OPTS - parameters passed to the Java VM when running Maven 31 | @REM e.g. to debug Maven itself, use 32 | @REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 33 | @REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files 34 | @REM ---------------------------------------------------------------------------- 35 | 36 | @REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' 37 | @echo off 38 | @REM set title of command window 39 | title %0 40 | @REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' 41 | @if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% 42 | 43 | @REM set %HOME% to equivalent of $HOME 44 | if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") 45 | 46 | @REM Execute a user defined script before this one 47 | if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre 48 | @REM check for pre script, once with legacy .bat ending and once with .cmd ending 49 | if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %* 50 | if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %* 51 | :skipRcPre 52 | 53 | @setlocal 54 | 55 | set ERROR_CODE=0 56 | 57 | @REM To isolate internal variables from possible post scripts, we use another setlocal 58 | @setlocal 59 | 60 | @REM ==== START VALIDATION ==== 61 | if not "%JAVA_HOME%" == "" goto OkJHome 62 | 63 | echo. 64 | echo Error: JAVA_HOME not found in your environment. >&2 65 | echo Please set the JAVA_HOME variable in your environment to match the >&2 66 | echo location of your Java installation. >&2 67 | echo. 68 | goto error 69 | 70 | :OkJHome 71 | if exist "%JAVA_HOME%\bin\java.exe" goto init 72 | 73 | echo. 74 | echo Error: JAVA_HOME is set to an invalid directory. >&2 75 | echo JAVA_HOME = "%JAVA_HOME%" >&2 76 | echo Please set the JAVA_HOME variable in your environment to match the >&2 77 | echo location of your Java installation. >&2 78 | echo. 79 | goto error 80 | 81 | @REM ==== END VALIDATION ==== 82 | 83 | :init 84 | 85 | @REM Find the project base dir, i.e. the directory that contains the folder ".mvn". 86 | @REM Fallback to current working directory if not found. 87 | 88 | set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% 89 | IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir 90 | 91 | set EXEC_DIR=%CD% 92 | set WDIR=%EXEC_DIR% 93 | :findBaseDir 94 | IF EXIST "%WDIR%"\.mvn goto baseDirFound 95 | cd .. 96 | IF "%WDIR%"=="%CD%" goto baseDirNotFound 97 | set WDIR=%CD% 98 | goto findBaseDir 99 | 100 | :baseDirFound 101 | set MAVEN_PROJECTBASEDIR=%WDIR% 102 | cd "%EXEC_DIR%" 103 | goto endDetectBaseDir 104 | 105 | :baseDirNotFound 106 | set MAVEN_PROJECTBASEDIR=%EXEC_DIR% 107 | cd "%EXEC_DIR%" 108 | 109 | :endDetectBaseDir 110 | 111 | IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig 112 | 113 | @setlocal EnableExtensions EnableDelayedExpansion 114 | for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a 115 | @endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% 116 | 117 | :endReadAdditionalConfig 118 | 119 | SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" 120 | set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" 121 | set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 122 | 123 | set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 124 | 125 | FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( 126 | IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B 127 | ) 128 | 129 | @REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central 130 | @REM This allows using the maven wrapper in projects that prohibit checking in binary data. 131 | if exist %WRAPPER_JAR% ( 132 | if "%MVNW_VERBOSE%" == "true" ( 133 | echo Found %WRAPPER_JAR% 134 | ) 135 | ) else ( 136 | if not "%MVNW_REPOURL%" == "" ( 137 | SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 138 | ) 139 | if "%MVNW_VERBOSE%" == "true" ( 140 | echo Couldn't find %WRAPPER_JAR%, downloading it ... 141 | echo Downloading from: %DOWNLOAD_URL% 142 | ) 143 | 144 | powershell -Command "&{"^ 145 | "$webclient = new-object System.Net.WebClient;"^ 146 | "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ 147 | "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ 148 | "}"^ 149 | "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ 150 | "}" 151 | if "%MVNW_VERBOSE%" == "true" ( 152 | echo Finished downloading %WRAPPER_JAR% 153 | ) 154 | ) 155 | @REM End of extension 156 | 157 | @REM Provide a "standardized" way to retrieve the CLI args that will 158 | @REM work with both Windows and non-Windows executions. 159 | set MAVEN_CMD_LINE_ARGS=%* 160 | 161 | %MAVEN_JAVA_EXE% ^ 162 | %JVM_CONFIG_MAVEN_PROPS% ^ 163 | %MAVEN_OPTS% ^ 164 | %MAVEN_DEBUG_OPTS% ^ 165 | -classpath %WRAPPER_JAR% ^ 166 | "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^ 167 | %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* 168 | if ERRORLEVEL 1 goto error 169 | goto end 170 | 171 | :error 172 | set ERROR_CODE=1 173 | 174 | :end 175 | @endlocal & set ERROR_CODE=%ERROR_CODE% 176 | 177 | if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost 178 | @REM check for post script, once with legacy .bat ending and once with .cmd ending 179 | if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat" 180 | if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd" 181 | :skipRcPost 182 | 183 | @REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' 184 | if "%MAVEN_BATCH_PAUSE%"=="on" pause 185 | 186 | if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE% 187 | 188 | cmd /C exit /B %ERROR_CODE% 189 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | org.springframework.boot 7 | spring-boot-starter-parent 8 | 2.6.2 9 | 10 | 11 | 12 | com.codertao 13 | design-demo-chain 14 | 0.0.1-SNAPSHOT 15 | design-demo-chain 16 | design-demo-chain 17 | 18 | 19 | 20 | 1.8 21 | 22 | 23 | 24 | 25 | org.springframework.boot 26 | spring-boot-starter 27 | 28 | 29 | 30 | org.springframework.boot 31 | spring-boot-devtools 32 | runtime 33 | true 34 | 35 | 36 | org.projectlombok 37 | lombok 38 | true 39 | 40 | 41 | org.springframework.boot 42 | spring-boot-starter-test 43 | test 44 | 45 | 46 | com.alibaba 47 | fastjson 48 | 1.2.75 49 | 50 | 51 | org.apache.commons 52 | commons-lang3 53 | 3.12.0 54 | 55 | 56 | 57 | commons-collections 58 | commons-collections 59 | 3.2.2 60 | 61 | 62 | cn.hutool 63 | hutool-all 64 | 4.5.15 65 | 66 | 67 | com.alibaba 68 | easyexcel 69 | 3.2.1 70 | 71 | 72 | 96 | 122 | 123 | 124 | 125 | 126 | 127 | org.springframework.boot 128 | spring-boot-maven-plugin 129 | 130 | 131 | 132 | org.projectlombok 133 | lombok 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/AutoHashUtil.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain; 2 | 3 | import cn.hutool.core.util.HashUtil; 4 | import org.apache.commons.lang3.StringUtils; 5 | 6 | import java.util.*; 7 | import java.util.concurrent.ConcurrentHashMap; 8 | import java.util.function.Function; 9 | 10 | /** 11 | * @description: 12 | * @author: rongtao7 13 | * @date: 2023/3/21 9:27 上午 14 | */ 15 | public class AutoHashUtil { 16 | 17 | public static ConcurrentHashMap hashMap = new ConcurrentHashMap<>(306579); 18 | public static ConcurrentHashMap rehashMap = new ConcurrentHashMap<>(2000); 19 | 20 | public static Set 现有的池子 = new HashSet<>(310000); 21 | public static Set 没有的池子 = new HashSet<>(10000); 22 | //public static final Map hashMap = new HashMap<>(); 23 | 24 | public static final List> functionList = new ArrayList<>(); 25 | 26 | static { 27 | 28 | hashMap.put(745739175, "0.25g*40片"); 29 | 30 | //默认的Hash规则 31 | functionList.add(packageSpec -> packageSpec.trim().hashCode() & 0x7FFFFFFF); 32 | 33 | functionList.add(packageSpec -> { 34 | System.out.println("rsHash -> key" + packageSpec); 35 | int hash = HashUtil.rsHash(packageSpec); 36 | System.out.println("rsHash -> hash" + hash); 37 | return hash; 38 | }); 39 | 40 | //FNV Hash 41 | functionList.add(packageSpec -> { 42 | System.out.println("fnvHash -> key" + packageSpec); 43 | int hash = HashUtil.fnvHash(packageSpec); 44 | System.out.println("fnvHash -> hash" + hash); 45 | return hash; 46 | }); 47 | 48 | 49 | functionList.add(packageSpec -> HashUtil.jsHash(packageSpec)); 50 | functionList.add(packageSpec -> HashUtil.pjwHash(packageSpec)); 51 | functionList.add(packageSpec -> HashUtil.elfHash(packageSpec)); 52 | functionList.add(packageSpec -> HashUtil.bkdrHash(packageSpec)); 53 | functionList.add(packageSpec -> HashUtil.sdbmHash(packageSpec)); 54 | functionList.add(packageSpec -> HashUtil.djbHash(packageSpec)); 55 | functionList.add(packageSpec -> HashUtil.dekHash(packageSpec)); 56 | functionList.add(packageSpec -> HashUtil.apHash(packageSpec)); 57 | 58 | } 59 | 60 | public static int multistepHashSet(String spec) { 61 | String trim = spec.trim(); 62 | for (Function hashFunction : functionList) { 63 | int hashValue = hashFunction.apply(trim); 64 | boolean add = 现有的池子.add(hashValue); 65 | if (add) { 66 | hashMap.put(hashValue, spec); 67 | return hashValue; 68 | } 69 | 70 | } 71 | return 0; 72 | } 73 | 74 | 75 | /** 76 | * 多级Hash规则 77 | * @param spec 78 | * @return 79 | */ 80 | public static int multistepHash(String spec) { 81 | String trim = spec; 82 | for (Function hashFunction : functionList) { 83 | //Hash算法 84 | int hashValue = hashFunction.apply(trim); 85 | String hashSpec = hashMap.get(hashValue); 86 | 87 | //缓存中无值，则放入缓存中 88 | if (StringUtils.isBlank(hashSpec)) { 89 | hashMap.put(hashValue, trim); 90 | rehashMap.put(hashValue, trim); 91 | System.out.println("缓存中没有的值是，hash = " + hashValue + ", value = " + trim); 92 | return hashValue; 93 | } 94 | 95 | //缓存中有值，判断是否冲突，如果不冲突返回；冲突需要再Hash 96 | boolean eq = Objects.equals(trim, hashSpec); 97 | if (eq) { 98 | return hashValue; 99 | } 100 | System.out.println("哈希冲突，进入多级哈希逻辑，目标spec =" + trim + "，缓存中的值为 hash=" + hashValue + ", value=" + hashSpec); 101 | } 102 | return 0; 103 | } 104 | 105 | } 106 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/DesignDemoChainApplication.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | 6 | @SpringBootApplication 7 | public class DesignDemoChainApplication { 8 | 9 | public static void main(String[] args) { 10 | SpringApplication.run(DesignDemoChainApplication.class, args); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/PackageSpec.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain; 2 | 3 | import com.alibaba.excel.annotation.ExcelProperty; 4 | import lombok.Data; 5 | 6 | import java.io.Serializable; 7 | 8 | /** 9 | * @description: 10 | * @author: rongtao7 11 | * @date: 2023/3/21 11:45 上午 12 | */ 13 | @Data 14 | public class PackageSpec implements Serializable { 15 | 16 | @ExcelProperty(value = "package_spec_id") 17 | private String packageSpecId; 18 | 19 | @ExcelProperty(value = "package_spec") 20 | private String packageSpec; 21 | } 22 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/Test.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain; 2 | 3 | import cn.hutool.Hutool; 4 | import cn.hutool.core.util.HashUtil; 5 | 6 | import java.util.HashMap; 7 | import java.util.Map; 8 | 9 | /** 10 | * @description: 11 | * @author: rongtao7 12 | * @date: 2023/3/15 12:00 下午 13 | */ 14 | public class Test { 15 | public static void main(String[] args) { 16 | Map has = new HashMap<>(); 17 | has.put(1466308379, "(10g：0.2g)x25g 支"); 18 | System.out.println("autoHash-i:" +has.toString()); 19 | 20 | int s = "(10g：0.2g)x25g\\支".trim().hashCode() & 0x7FFFFFFF; 21 | System.out.println("s="+s); 22 | //int i = "0.25g*40片".hashCode() & 0x7FFFFFFF; 23 | //int j = "250mg*40片".hashCode() & 0x7FFFFFFF; 24 | //System.out.println("defaultHash-i:" + (spec1.trim().hashCode() & 0x7FFFFFFF)); 25 | //System.out.println("defaultHash-j:" + (spec2.trim().hashCode() & 0x7FFFFFFF)); 26 | //System.out.println("-------------------"); 27 | //System.out.println("fnvHash-i:" + HashUtil.fnvHash(spec1)); 28 | //System.out.println("fnvHash-j:" + HashUtil.fnvHash(spec2)); 29 | //System.out.println("-------------------"); 30 | //System.out.println("rsHash-i:" + HashUtil.rsHash(spec1)); 31 | //System.out.println("rsHash-j:" + HashUtil.rsHash(spec2)); 32 | //System.out.println("-------------------"); 33 | //System.out.println("jsHash-i:" + HashUtil.jsHash(spec1)); 34 | //System.out.println("jsHash-j:" + HashUtil.jsHash(spec2)); 35 | //System.out.println("-------------------"); 36 | //System.out.println("pjwHash-i:" + HashUtil.pjwHash(spec1)); 37 | //System.out.println("pjwHash-j:" + HashUtil.pjwHash(spec2)); 38 | //System.out.println("-------------------"); 39 | //System.out.println("elfHash-i:" + HashUtil.elfHash(spec1)); 40 | //System.out.println("elfHash-j:" + HashUtil.elfHash(spec2)); 41 | //System.out.println("-------------------"); 42 | //System.out.println("bkdrHash-i:" + HashUtil.bkdrHash(spec1)); 43 | //System.out.println("bkdrHash-j:" + HashUtil.bkdrHash(spec2)); 44 | //System.out.println("-------------------"); 45 | //System.out.println("sdbmHash-i:" + HashUtil.sdbmHash(spec1)); 46 | //System.out.println("sdbmHash-j:" + HashUtil.sdbmHash(spec2)); 47 | //System.out.println("-------------------"); 48 | //System.out.println("djbHash-i:" + HashUtil.djbHash(spec1)); 49 | //System.out.println("djbHash-j:" + HashUtil.djbHash(spec2)); 50 | //System.out.println("-------------------"); 51 | //System.out.println("dekHash-i:" + HashUtil.dekHash(spec1)); 52 | //System.out.println("dekHash-j:" + HashUtil.dekHash(spec2)); 53 | //System.out.println("-------------------"); 54 | //System.out.println("apHash-i:" + HashUtil.apHash(spec1)); 55 | //System.out.println("apHash-j:" + HashUtil.apHash(spec2)); 56 | //System.out.println("-------------------"); 57 | //System.out.println("tianlHash-i:" + HashUtil.tianlHash(spec1)); 58 | //System.out.println("tianlHash-j:" + HashUtil.tianlHash(spec2)); 59 | //System.out.println("-------------------"); 60 | 61 | 62 | } 63 | 64 | 65 | } 66 | 67 | 68 | 69 | 70 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/ErrorCode.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1; 2 | 3 | import lombok.Getter; 4 | 5 | @Getter 6 | public enum ErrorCode { 7 | /** 8 | * 公共 9 | */ 10 | SUCCESS("0000", "操作成功"), 11 | FAIL("0001", "失败"), 12 | ERROR("0002", "异常"), 13 | PARAM_NULL_ERROR("0003", "参数为空"), 14 | PARAM_SKU_NULL_ERROR("0004", "SKU参数为空"), 15 | PARAM_PRICE_NULL_ERROR("0005", "价格参数为空"), 16 | PARAM_STOCK_NULL_ERROR("0006", "库存参数为空"), 17 | PARAM_PRICE_ILLEGAL_ERROR("0007", "不合法的价格参数"), 18 | PARAM_STOCK_ILLEGAL_ERROR("0008", "不合法的库存参数"), 19 | ; 20 | 21 | private String code; 22 | 23 | private String desc; 24 | 25 | ErrorCode(String code, String desc) { 26 | this.code = code; 27 | this.desc = desc; 28 | } 29 | 30 | } 31 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/HandlerClient.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1; 2 | 3 | import com.codertao.design.chain.case1.handler.AbstractCheckHandler; 4 | 5 | /** 6 | * 责任链模式之客户端 7 | */ 8 | public class HandlerClient { 9 | 10 | /** 11 | * 执行链路 12 | * @param handler 处理器 13 | * @param param 商品参数 14 | * @return 15 | */ 16 | public static Result executeChain(AbstractCheckHandler handler, ProductVO param) { 17 | //执行处理器 18 | Result handlerResult = handler.handle(param); 19 | if (!handlerResult.isSuccess()) { 20 | System.out.println("HandlerClient 责任链执行失败返回：" + handlerResult.toString()); 21 | return handlerResult; 22 | } 23 | return Result.success(); 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/ProductCheckHandlerConfig.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1; 2 | 3 | import lombok.AllArgsConstructor; 4 | import lombok.Data; 5 | 6 | /** 7 | * 处理器配置类 8 | */ 9 | @AllArgsConstructor 10 | @Data 11 | public class ProductCheckHandlerConfig { 12 | /** 13 | * 处理器Bean名称 14 | */ 15 | private String handler; 16 | /** 17 | * 下一个处理器 18 | */ 19 | private ProductCheckHandlerConfig next; 20 | /** 21 | * 是否降级 22 | */ 23 | private Boolean down = Boolean.FALSE; 24 | } 25 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/ProductService.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1; 2 | 3 | import com.alibaba.fastjson.JSON; 4 | import com.codertao.design.chain.case1.handler.AbstractCheckHandler; 5 | import org.apache.commons.lang3.StringUtils; 6 | import org.springframework.stereotype.Component; 7 | 8 | import javax.annotation.Resource; 9 | import java.util.Map; 10 | import java.util.Objects; 11 | 12 | @Component 13 | public class ProductService { 14 | 15 | /** 16 | * 使用Spring注入:所有继承了AbstractCheckHandler抽象类的Spring Bean都会注入进来。Map的Key对应Bean的name,Value是name对应相应的Bean 17 | */ 18 | @Resource 19 | private Map handlerMap; 20 | 21 | /** 22 | * 创建商品 23 | * @return 24 | */ 25 | public Result createProduct(ProductVO param) { 26 | 27 | //参数校验，使用责任链模式 28 | Result paramCheckResult = this.paramCheckChain(param); 29 | if (!paramCheckResult.isSuccess()) { 30 | return paramCheckResult; 31 | } 32 | 33 | //创建商品 34 | return this.saveProduct(param); 35 | } 36 | 37 | /** 38 | * 参数校验：责任链模式 39 | * @param param 40 | * @return 41 | */ 42 | private Result paramCheckChain(ProductVO param) { 43 | 44 | //获取处理器配置：通常配置使用统一配置中心存储，支持动态变更 45 | ProductCheckHandlerConfig handlerConfig = this.getHandlerConfigFile(); 46 | 47 | //获取处理器 48 | AbstractCheckHandler handler = this.getHandler(handlerConfig); 49 | 50 | //责任链：执行处理器链路 51 | Result executeChainResult = HandlerClient.executeChain(handler, param); 52 | if (!executeChainResult.isSuccess()) { 53 | System.out.println("创建商品失败..."); 54 | return executeChainResult; 55 | } 56 | 57 | //处理器链路全部成功 58 | return Result.success(); 59 | } 60 | 61 | /** 62 | * 获取处理器配置：通常配置使用统一配置中心存储，支持动态变更 63 | * @return 64 | */ 65 | private ProductCheckHandlerConfig getHandlerConfigFile() { 66 | //配置中心存储的配置 67 | String configJson = "{\"handler\":\"nullValueCheckHandler\",\"down\":false,\"next\":{\"handler\":\"priceCheckHandler\",\"next\":{\"handler\":\"stockCheckHandler\",\"next\":null}}}"; 68 | //转成Config对象 69 | ProductCheckHandlerConfig handlerConfig = JSON.parseObject(configJson, ProductCheckHandlerConfig.class); 70 | return handlerConfig; 71 | } 72 | 73 | /** 74 | * 获取处理器 75 | * @param config 76 | * @return 77 | */ 78 | private AbstractCheckHandler getHandler (ProductCheckHandlerConfig config) { 79 | //配置检查：没有配置处理器链路，则不执行校验逻辑 80 | if (Objects.isNull(config)) { 81 | return null; 82 | } 83 | //配置错误 84 | String handler = config.getHandler(); 85 | if (StringUtils.isBlank(handler)) { 86 | return null; 87 | } 88 | //配置了不存在的处理器 89 | AbstractCheckHandler abstractCheckHandler = handlerMap.get(config.getHandler()); 90 | if (Objects.isNull(abstractCheckHandler)) { 91 | return null; 92 | } 93 | 94 | //处理器设置配置Config 95 | abstractCheckHandler.setConfig(config); 96 | 97 | //递归设置链路处理器 98 | abstractCheckHandler.setNextHandler(this.getHandler(config.getNext())); 99 | 100 | return abstractCheckHandler; 101 | } 102 | 103 | 104 | private Result saveProduct(ProductVO param) { 105 | System.out.println("保存商品成功..."); 106 | return Result.success(param); 107 | } 108 | } 109 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/ProductVO.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1; 2 | 3 | import lombok.Builder; 4 | import lombok.Data; 5 | 6 | import java.math.BigDecimal; 7 | 8 | /** 9 | * 商品对象 10 | */ 11 | @Data 12 | @Builder 13 | public class ProductVO { 14 | /** 15 | * 商品SKU，唯一 16 | */ 17 | private Long skuId; 18 | /** 19 | * 商品名称 20 | */ 21 | private String skuName; 22 | /** 23 | * 商品图片路径 24 | */ 25 | private String imgPath; 26 | /** 27 | * 价格 28 | */ 29 | private BigDecimal price; 30 | /** 31 | * 库存 32 | */ 33 | private Integer stock; 34 | } 35 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/Result.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1; 2 | 3 | import lombok.Data; 4 | 5 | @Data 6 | public class Result { 7 | /** 8 | * 是否成功 9 | */ 10 | private boolean success; 11 | /** 12 | * 响应码 13 | */ 14 | private String code; 15 | /** 16 | * 消息 17 | */ 18 | private String msg; 19 | /** 20 | * 数据 21 | */ 22 | private T data; 23 | 24 | /** 25 | * success 26 | * 27 | * @param 28 | * @return 29 | */ 30 | public static Result success() { 31 | Result r = new Result(); 32 | r.setSuccess(true); 33 | r.setCode(ErrorCode.SUCCESS.getCode()); 34 | return r; 35 | } 36 | 37 | /** 38 | * success 39 | * 40 | * @param data 41 | * @param 42 | * @return 43 | */ 44 | public static Result success(T data) { 45 | Result r = new Result(); 46 | r.setSuccess(true); 47 | r.setCode(ErrorCode.SUCCESS.getCode()); 48 | r.setData(data); 49 | return r; 50 | } 51 | 52 | /** 53 | * failure 54 | * 55 | * @param code 56 | * @param 57 | * @return 58 | */ 59 | public static Result failure(ErrorCode code) { 60 | return failure(code.getCode(), code.getDesc()); 61 | } 62 | 63 | /** 64 | * failure 65 | * 66 | * @param code 67 | * @param message 68 | * @param 69 | * @return 70 | */ 71 | public static Result failure(String code, String message) { 72 | return failure(code, message, null); 73 | } 74 | 75 | /** 76 | * failure 77 | * 78 | * @param code 79 | * @param msg 80 | * @param data 81 | * @param 82 | * @return 83 | */ 84 | public static Result failure(String code, String msg, T data) { 85 | Result r = new Result(); 86 | r.setSuccess(false); 87 | r.setCode(code); 88 | r.setMsg(msg); 89 | r.setData(data); 90 | return r; 91 | } 92 | 93 | } 94 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/handler/AbstractCheckHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1.handler; 2 | 3 | import com.codertao.design.chain.case1.ProductCheckHandlerConfig; 4 | import com.codertao.design.chain.case1.ProductVO; 5 | import com.codertao.design.chain.case1.Result; 6 | import lombok.Getter; 7 | import lombok.Setter; 8 | import org.springframework.stereotype.Component; 9 | 10 | import java.util.Objects; 11 | 12 | 13 | /** 14 | * 抽象类处理器 15 | */ 16 | @Component 17 | public abstract class AbstractCheckHandler { 18 | 19 | /** 20 | * 当前处理器持有下一个处理器的引用 21 | */ 22 | @Getter 23 | @Setter 24 | private AbstractCheckHandler nextHandler; 25 | 26 | 27 | /** 28 | * 处理器执行方法 29 | * @param param 30 | * @return 31 | */ 32 | public abstract Result handle(ProductVO param); 33 | 34 | /** 35 | * 处理器配置 36 | */ 37 | @Setter 38 | @Getter 39 | protected ProductCheckHandlerConfig config; 40 | 41 | /** 42 | * 链路传递 43 | * @param param 44 | * @return 45 | */ 46 | protected Result next(ProductVO param) { 47 | //下一个链路没有处理器了，直接返回 48 | if (Objects.isNull(nextHandler)) { 49 | return Result.success(); 50 | } 51 | 52 | //执行下一个处理器 53 | return nextHandler.handle(param); 54 | } 55 | 56 | } 57 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/handler/NullValueCheckHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1.handler; 2 | 3 | 4 | import com.codertao.design.chain.case1.ErrorCode; 5 | import com.codertao.design.chain.case1.ProductVO; 6 | import com.codertao.design.chain.case1.Result; 7 | import org.springframework.stereotype.Component; 8 | 9 | import java.util.Objects; 10 | 11 | /** 12 | * 空值校验处理器 13 | */ 14 | @Component 15 | public class NullValueCheckHandler extends AbstractCheckHandler{ 16 | 17 | @Override 18 | public Result handle(ProductVO param) { 19 | System.out.println("空值校验 Handler 开始..."); 20 | 21 | //降级：如果配置了降级，则跳过此处理器，执行下一个处理器 22 | if (super.getConfig().getDown()) { 23 | System.out.println("空值校验 Handler 已降级，跳过空值校验 Handler..."); 24 | return super.next(param); 25 | } 26 | 27 | //参数必填校验 28 | if (Objects.isNull(param)) { 29 | return Result.failure(ErrorCode.PARAM_NULL_ERROR); 30 | } 31 | //SkuId商品主键参数必填校验 32 | if (Objects.isNull(param.getSkuId())) { 33 | return Result.failure(ErrorCode.PARAM_SKU_NULL_ERROR); 34 | } 35 | //Price价格参数必填校验 36 | if (Objects.isNull(param.getPrice())) { 37 | return Result.failure(ErrorCode.PARAM_PRICE_NULL_ERROR); 38 | } 39 | //Stock库存参数必填校验 40 | if (Objects.isNull(param.getStock())) { 41 | return Result.failure(ErrorCode.PARAM_STOCK_NULL_ERROR); 42 | } 43 | 44 | System.out.println("空值校验 Handler 通过..."); 45 | 46 | //执行下一个处理器 47 | return super.next(param); 48 | } 49 | } 50 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/handler/PriceCheckHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1.handler; 2 | 3 | import com.codertao.design.chain.case1.ErrorCode; 4 | import com.codertao.design.chain.case1.ProductVO; 5 | import com.codertao.design.chain.case1.Result; 6 | import org.springframework.stereotype.Component; 7 | 8 | import java.math.BigDecimal; 9 | 10 | /** 11 | * 价格校验处理器 12 | */ 13 | @Component 14 | public class PriceCheckHandler extends AbstractCheckHandler{ 15 | @Override 16 | public Result handle(ProductVO param) { 17 | System.out.println("价格校验 Handler 开始..."); 18 | 19 | //非法价格校验 20 | boolean illegalPrice = param.getPrice().compareTo(BigDecimal.ZERO) <= 0; 21 | if (illegalPrice) { 22 | return Result.failure(ErrorCode.PARAM_PRICE_ILLEGAL_ERROR); 23 | } 24 | //其他校验逻辑... 25 | 26 | System.out.println("价格校验 Handler 通过..."); 27 | 28 | //执行下一个处理器 29 | return super.next(param); 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case1/handler/StockCheckHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case1.handler; 2 | 3 | import com.codertao.design.chain.case1.ErrorCode; 4 | import com.codertao.design.chain.case1.ProductVO; 5 | import com.codertao.design.chain.case1.Result; 6 | import org.springframework.stereotype.Component; 7 | 8 | /** 9 | * 库存校验处理器 10 | */ 11 | @Component 12 | public class StockCheckHandler extends AbstractCheckHandler{ 13 | @Override 14 | public Result handle(ProductVO param) { 15 | System.out.println("库存校验 Handler 开始..."); 16 | 17 | //非法库存校验 18 | boolean illegalStock = param.getStock() < 0; 19 | if (illegalStock) { 20 | return Result.failure(ErrorCode.PARAM_STOCK_ILLEGAL_ERROR); 21 | } 22 | //其他校验逻辑.. 23 | 24 | System.out.println("库存校验 Handler 通过..."); 25 | 26 | //执行下一个处理器 27 | return super.next(param); 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case2/AbstractFlowHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case2; 2 | 3 | import org.springframework.stereotype.Component; 4 | 5 | import java.util.Objects; 6 | 7 | @Component 8 | public abstract class AbstractFlowHandler { 9 | 10 | private AbstractFlowHandler nextHandler; 11 | 12 | /** 13 | * 审批 14 | * @param param 15 | * @return 16 | */ 17 | public abstract boolean approve(MoneyPayVO param); 18 | 19 | /** 20 | * 链路传递 21 | * @param param 22 | * @return 23 | */ 24 | protected boolean next(MoneyPayVO param) { 25 | //下一个链路没有处理器了，直接返回 26 | if (Objects.isNull(nextHandler)) { 27 | return true; 28 | } 29 | 30 | //执行下一个处理器 31 | return nextHandler.approve(param); 32 | } 33 | 34 | 35 | } 36 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case2/HandlerClient.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case2; 2 | 3 | /** 4 | * 责任链模式之客户端 5 | */ 6 | public class HandlerClient { 7 | 8 | /** 9 | * 执行链路 10 | * @param handler 处理器 11 | * @param param 商品参数 12 | * @return 13 | */ 14 | public static boolean executeChain(AbstractFlowHandler handler, MoneyPayVO param) { 15 | //执行处理器 16 | return true; 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case2/MoneyPayVO.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case2; 2 | 3 | 4 | import lombok.Data; 5 | 6 | import java.math.BigDecimal; 7 | 8 | @Data 9 | public class MoneyPayVO { 10 | private String people; 11 | private BigDecimal money; 12 | } 13 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case2/OneLevelFlowHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case2; 2 | 3 | public class OneLevelFlowHandler extends AbstractFlowHandler{ 4 | @Override 5 | public boolean approve(MoneyPayVO param) { 6 | return false; 7 | } 8 | } 9 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case2/ThreeLevelFlowHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case2; 2 | 3 | public class ThreeLevelFlowHandler extends AbstractFlowHandler { 4 | @Override 5 | public boolean approve(MoneyPayVO param) { 6 | return false; 7 | } 8 | } 9 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case2/TwoLevelFlowHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case2; 2 | 3 | public class TwoLevelFlowHandler extends AbstractFlowHandler{ 4 | @Override 5 | public boolean approve(MoneyPayVO param) { 6 | return false; 7 | } 8 | } 9 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case3/AbstractHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case3; 2 | 3 | import com.codertao.design.chain.case1.ProductCheckHandlerConfig; 4 | import com.codertao.design.chain.case1.Result; 5 | import lombok.Getter; 6 | import lombok.Setter; 7 | import org.springframework.stereotype.Service; 8 | 9 | import java.util.Objects; 10 | 11 | @Service 12 | public abstract class AbstractHandler { 13 | 14 | /** 15 | * 当前处理器持有下一个处理器的引用 16 | */ 17 | @Getter 18 | @Setter 19 | private AbstractHandler nextHandler; 20 | 21 | /** 22 | * 处理器配置 23 | */ 24 | @Setter 25 | @Getter 26 | protected ProductCheckHandlerConfig config; 27 | 28 | /** 29 | * 处理器执行方法 30 | * @param param 31 | * @return 32 | */ 33 | public abstract Result handle(T param); 34 | 35 | /** 36 | * 链路传递 37 | * @param param 38 | * @return 39 | */ 40 | protected Result next(T param) { 41 | //下一个链路没有处理器了，直接返回 42 | if (Objects.isNull(nextHandler)) { 43 | return Result.success(); 44 | } 45 | 46 | //执行下一个处理器 47 | return nextHandler.handle(param); 48 | } 49 | } 50 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case3/CartParamCheckHandler.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case3; 2 | 3 | import com.codertao.design.chain.case1.Result; 4 | import org.springframework.stereotype.Component; 5 | 6 | import java.util.Set; 7 | 8 | @Component 9 | public class CartParamCheckHandler extends AbstractHandler>{ 10 | 11 | @Override 12 | public Result handle(Set s) { 13 | return null; 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/java/com/codertao/design/chain/case3/Sku.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain.case3; 2 | 3 | import lombok.Data; 4 | 5 | import java.math.BigDecimal; 6 | 7 | @Data 8 | public class Sku { 9 | 10 | /** 11 | * 商品SKU，唯一 12 | */ 13 | private Long skuId; 14 | /** 15 | * 商品名称 16 | */ 17 | private String skuName; 18 | /** 19 | * 商品图片路径 20 | */ 21 | private String imgPath; 22 | /** 23 | * 价格 24 | */ 25 | private BigDecimal price; 26 | /** 27 | * 库存 28 | */ 29 | private Integer stock; 30 | } 31 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /MyNotes-design/design-demo-chain/src/test/java/com/codertao/design/chain/DesignDemoChainApplicationTests.java: -------------------------------------------------------------------------------- 1 | package com.codertao.design.chain; 2 | 3 | import com.codertao.design.chain.case1.ProductService; 4 | import com.codertao.design.chain.case1.ProductVO; 5 | import lombok.Data; 6 | import lombok.EqualsAndHashCode; 7 | import org.apache.commons.collections.MapUtils; 8 | import org.junit.jupiter.api.Test; 9 | import org.springframework.boot.test.context.SpringBootTest; 10 | 11 | import javax.annotation.Resource; 12 | import java.math.BigDecimal; 13 | import java.text.SimpleDateFormat; 14 | import java.util.*; 15 | import java.util.stream.Collectors; 16 | 17 | @SpringBootTest 18 | class DesignDemoChainApplicationTests { 19 | @Resource 20 | ProductService productService; 21 | @Resource 22 | TestController testController; 23 | 24 | @Test 25 | void contextLoads() { 26 | testController.countData(); 27 | //testController.testImport(); 28 | } 29 | 30 | void testDate () { 31 | //Calendar instance = Calendar.getInstance(); 32 | //instance.set(Calendar.DAY_OF_MONTH, instance.getActualMaximum(Calendar.DAY_OF_MONTH)); 33 | 34 | //Date lastDayOfMonth1 = getLastDayOfMonth1(2022, 1); 35 | // 36 | //int difDay = getDifDay(new Date(), lastDayOfMonth1); 37 | //System.out.println(difDay); 38 | 39 | String abc = "175810020032"; 40 | Map map = new HashMap<>(); 41 | map.put("abc", abc); 42 | Long aLong = MapUtils.getLong(map, "abc"); 43 | System.out.println(aLong); 44 | 45 | 46 | } 47 | 48 | @Data 49 | class Cat { 50 | private Long id; 51 | private Integer cat3Id; 52 | } 53 | 54 | /** 55 | * 获取指定年月的最后一天 56 | * @param year 57 | * @param month 58 | * @return 59 | */ 60 | public static Date getLastDayOfMonth1(int year, int month) { 61 | Calendar cal = Calendar.getInstance(); 62 | //设置年份 63 | cal.set(Calendar.YEAR, year); 64 | //设置月份 65 | cal.set(Calendar.MONTH, month-1); 66 | //获取某月最大天数 67 | int lastDay = cal.getActualMaximum(Calendar.DATE); 68 | //设置日历中月份的最大天数 69 | cal.set(Calendar.DAY_OF_MONTH, lastDay); 70 | //格式化日期 71 | return cal.getTime(); 72 | } 73 | 74 | /** 75 | * 获取两个时间相差几天 76 | */ 77 | public static int getDifDay(Date start, Date end) { 78 | try { 79 | Calendar calendar = Calendar.getInstance(); 80 | calendar.setTime(start); 81 | Long startTime = calendar.getTimeInMillis(); 82 | calendar.setTime(end); 83 | Long endTime = calendar.getTimeInMillis(); 84 | double endTimeD = new Double(endTime); 85 | Double difDay = Math.ceil((endTimeD - startTime) / (1000 * 3600 * 24)); 86 | return difDay.intValue(); 87 | } catch (Exception e) { 88 | e.printStackTrace(); 89 | } 90 | 91 | return -1; 92 | } 93 | 94 | /** 95 | * 责任链模式 96 | */ 97 | void testChain() { 98 | ProductVO param = ProductVO.builder() 99 | .skuId(123L) 100 | .skuName("测试商品") 101 | .imgPath("http://..") 102 | .price(new BigDecimal(1)) 103 | .stock(1) 104 | .build(); 105 | productService.createProduct(param); 106 | } 107 | 108 | } 109 | -------------------------------------------------------------------------------- /MyNotes-design/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | MyNotes 7 | org.codertao 8 | 1.0-SNAPSHOT 9 | 10 | 4.0.0 11 | 12 | MyNotes-design 13 | pom 14 | 15 | 16 | design-demo-chain 17 | 18 | 19 | 20 | 8 21 | 8 22 | 23 | 24 | -------------------------------------------------------------------------------- /MyNotes-java/README.MD: -------------------------------------------------------------------------------- 1 | #Java进阶专栏 -------------------------------------------------------------------------------- /MyNotes-java/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | MyNotes 7 | org.codertao 8 | 1.0-SNAPSHOT 9 | 10 | 4.0.0 11 | 12 | MyNotes-java 13 | 14 | 15 | 8 16 | 8 17 | 18 | 19 | -------------------------------------------------------------------------------- /README.MD: -------------------------------------------------------------------------------- 1 | # 「码农小涛」的笔记 2 | 3 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 4.0.0 6 | 7 | org.codertao 8 | MyNotes 9 | pom 10 | 1.0-SNAPSHOT 11 | 12 | MyNotes-design 13 | MyNotes-java 14 | 15 | 16 | 17 | 8 18 | 8 19 | 20 | 21 | --------------------------------------------------------------------------------