spring boot assembly打包方式

使用assembly打包方式可以将配置文件、依赖jar、和应用程序隔离开。每次重新发布的时候只需上传应用程序（体积小，速度快），
当不依赖配置中心的时候并将配置写在程序中的时候，每次改动配置都要重新上传文件jar重新发布很麻烦，使用assembly只需要改动配置重新启动就好了

项目结构：

src - main - java
src - main - assembly - bin
src - main - assembly - config
src - main - assembly - lib
src - main - assembly - assembly.xml

依赖：

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <descriptors>
                        <descriptor>src/main/assembly/assembly.xml</descriptor>
                    </descriptors>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

assembly文件配置：

<assembly>
    <id>assembly</id>
    <formats>
        <format>tar.gz</format>
    </formats>
    <includeBaseDirectory>true</includeBaseDirectory>
    <fileSets>
        <fileSet>
            <directory>src/main/assembly/conf</directory>
            <outputDirectory>conf</outputDirectory>
            <fileMode>0644</fileMode>
        </fileSet>
        <fileSet>
            <directory>src/main/assembly/bin</directory>
            <outputDirectory>bin</outputDirectory>
            <fileMode>0755</fileMode>
        </fileSet>
    </fileSets>
    <dependencySets>
        <dependencySet>
            <outputDirectory>lib</outputDirectory>
        </dependencySet>
    </dependencySets>
</assembly>

打包命令：mvn package
启动脚本：
两种不同的启动方式：

java.png
启动脚本中需要更改MAIN_CLASS

#!/bin/bash
cd `dirname $0`
BIN_DIR=`pwd`
cd ..
DEPLOY_DIR=`pwd`
CONF_DIR=$DEPLOY_DIR/conf

MAIN_CLASS=com.example.demo.DemoApplication

PIDS=`ps -f | grep java | grep "$CONF_DIR" |awk '{print $2}'`
echo "$PIDS"

if [ -n "$PIDS" ]; then
    echo "ERROR: Application already started!"
    echo "PID: $PIDS"
    exit 1
fi

LOGS_DIR=$DEPLOY_DIR/logs
if [ ! -d $LOGS_DIR ]; then
    mkdir $LOGS_DIR
fi

STDOUT_FILE=$LOGS_DIR/stdout.log

LIB_DIR=$DEPLOY_DIR/lib
LIB_JARS=`ls $LIB_DIR|grep .jar|awk '{print "'$LIB_DIR'/"$0}'|tr "\n" ":"`

JAVA_OPTS=" -Djava.awt.headless=true -Djava.net.preferIPv4Stack=true "
JAVA_DEBUG_OPTS=""
if [ "$1" = "debug" ]; then
    JAVA_DEBUG_OPTS=" -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n "
fi
JAVA_JMX_OPTS=""
if [ "$1" = "jmx" ]; then
    JAVA_JMX_OPTS=" -Dcom.sun.management.jmxremote.port=1099 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false "
fi
JAVA_MEM_OPTS=""
BITS=`java -version 2>&1 | grep -i 64-bit`
if [ -n "$BITS" ]; then
    JAVA_MEM_OPTS=" -server -Xmx1g -Xms1g -Xmn256m -XX:PermSize=128m -Xss256k -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:LargePageSizeInBytes=128m -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=70 "
else
    JAVA_MEM_OPTS=" -server -Xms1g -Xmx1g -XX:PermSize=128m -XX:SurvivorRatio=2 -XX:+UseParallelGC "
fi

echo -e "Starting the Application ...\c"
nohup java $JAVA_OPTS $JAVA_MEM_OPTS $JAVA_DEBUG_OPTS $JAVA_JMX_OPTS -classpath $CONF_DIR:$LIB_JARS $MAIN_CLASS > $STDOUT_FILE 2>&1 &

echo "OK!"
PIDS=`ps -f | grep java | grep "$DEPLOY_DIR" | awk '{print $2}'`
echo "PID: $PIDS"
echo "STDOUT: $STDOUT_FILE"