Maven打包項目爲jar包，放在CentOS上做爲服務運行

1、Maven打包項目

1. 添加依賴，打包插件

   <?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <modelVersion>4.0.0</modelVersion>
   
       <groupId>com.ysxu</groupId>
       <artifactId>Hello</artifactId>
       <version>1.0-SNAPSHOT</version>
   
       <dependencies>
           <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
           <dependency>
               <groupId>org.slf4j</groupId>
               <artifactId>slf4j-api</artifactId>
               <version>1.7.26</version>
           </dependency>
           <!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-classic -->
           <dependency>
               <groupId>ch.qos.logback</groupId>
               <artifactId>logback-classic</artifactId>
               <version>1.2.3</version>
           </dependency>
           <!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-core -->
           <dependency>
               <groupId>ch.qos.logback</groupId>
               <artifactId>logback-core</artifactId>
               <version>1.2.3</version>
           </dependency>
   
       </dependencies>
   
       <build>
           <plugins>
               <plugin>
                   <artifactId>maven-assembly-plugin</artifactId>
                   <configuration>
                       <appendAssemblyId>false</appendAssemblyId>
                       <descriptorRefs>
                           <descriptorRef>jar-with-dependencies</descriptorRef>
                       </descriptorRefs>
                       <archive>
                           <manifest>
                               <!--注意，此處必須是main()方法對應類的完整路徑  -->
                               <mainClass>Main</mainClass>
                           </manifest>
                       </archive>
                   </configuration>
                   <executions>
                       <execution>
                           <id>make-assembly</id>
                           <phase>package</phase>
                           <goals>
                               <goal>assembly</goal>
                           </goals>
                       </execution>
                   </executions>
               </plugin>
           </plugins>
       </build>
   
   
   </project>

2. 編寫Main.java

   import org.slf4j.Logger;
   import org.slf4j.LoggerFactory;
   
   public class Main {
       private static final Logger logger = LoggerFactory.getLogger(Main.class);
   
       public static void main(String[] args) throws InterruptedException {
           while (true){
               logger.info("Hello, Linux");
               Thread.sleep(3000);
           }
       }
   }

3. 編寫logback.xml配置文件

   <?xml version="1.0" encoding="UTF-8"?>
   <configuration>
   
       <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
           <encoder>
               <pattern>%red(%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n)</pattern>
           </encoder>
       </appender>
   
       <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
           <encoder>
               <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
               <charset>utf-8</charset>
           </encoder>
   <!--        <file>log/output.log</file>-->
           <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
               <fileNamePattern>log/%d{yyyy-MM-dd}.log</fileNamePattern>
           </rollingPolicy>
   <!--        <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">-->
   <!--            <MaxFileSize>1MB</MaxFileSize>-->
   <!--        </triggeringPolicy>-->
       </appender>
   
       <root level="INFO">
           <appender-ref ref="CONSOLE" />
           <appender-ref ref="FILE" />
       </root>
   </configuration>

4. 打開Maven窗口，依次執行clean--->compile--->package

5. 生成的jar文件在target目錄下

2、將jar文件做爲Linux的服務運行

1. 複製jar文件到Linux

2. 在與jar文件同一目錄下編寫start.sh，stop.sh

   start.sh

   #!/bin/bash
   export JAVA_HOME=/usr/local/java/jdk1.8.0_221
   export JRE=/usr/local/java/jdk1.8.0_221/jre
   export CLASSPATH=$JAVA_HOME/lib:$JRE/lib:.
   export PATH=$PATH:$JAVA_HOME/bin/:$JRE/bin
   export PATH=$JAVA_HOME/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin
   nohup java -jar /root/project/Hello-1.0-SNAPSHOT.jar >>/dev/null  2>&1 &
   echo $! > /var/run/Hello-1.0-SNAPSHOT.pid

   stop.sh

   #!/bin/bash
   PID=$(cat /var/run/Hello-1.0-SNAPSHOT.pid)
   kill -9 $PID

3. 添加hello.service (/usr/lib/systemd/system/hello.service)

   [Unit]
   Description=hello server
   Documentation=
   Before=
   After=
   Wants=
   #Request=
   
   [Service]
   Type=forking
   WorkingDirectory=/root/project
   PermissionsStartOnly=true
   ExecStart=/root/project/start.sh
   
   KillMode=process
   ExecStop=/root/project/stop.sh
   PrivateTmp=true
   
   Restart=always
   RestartSec=2s
   
   LimitCORE=infinity
   
   [Install]
   WantedBy=multi-user.target

4. 使用命令管理服務

   systemctl start xxx
   systemctl stop xxx 
   systemctl restart xxx
   systemctl enable xxx

3、遇到問題

1. Failed at step EXEC spawning /usr/local/yealink/ptms/ptms-start.sh: Permission denied

   緣由是沒有執行sh文件的權限，這裏經過chmod 777 ptms-start.sh給相應的文件賦予最高權限便可。

2. Failed at step EXEC spawning /usr/local/yealink/ptms/ptms.sh: No such file or directory

遇到sh文件找不到，可是確實路徑又沒錯的狀況，能夠試着直接./ptms-start.sh執行sh文件，看看會不會報錯：bad interpreter: No such file or directory，若是會基本就是這個sh文件格式的問題。

緣由在於在window下編輯shell文件，換行符是不同的，會產生不可見字符。我確實有把sh文件在window系統打開編輯過，此時在傳到Linux系統上格式就會發生變化，在Linux上原本應該是unix的，但發現倒是dos格式的。解決辦法就是在linux上修改shell文件格式爲unix便可。

4、參考

1. http://www.javashuo.com/article/p-dlanqxss-gp.html
2. https://blog.csdn.net/u012359453/article/details/78707941