1，下载wrapper

下载地址：https://wrapper.tanukisoftware.com/doc/english/download.jsp#stable
安装包目录结构：
在这里插入图片描述
功能介绍：cat README_en.txt

2，使用wrapper后台启动java程序

2.1，编写java样例程序

HelloWorldServer.java具体代码参考：https://wrapper.tanukisoftware.com/doc/english/app-hello-world-server.html#source
com.my.Test2

public class Test2 {public static void main(String[] args) throws InterruptedException {System.out.println("start wrapper success");int i=1;while (true){System.out.println(i++);Thread.sleep(1000);}}
}

2.2，配置wrapper

参考 https://wrapper.tanukisoftware.com/doc/english/qna-unix-daemon.html

[root@c7 wrapper-linux-x86-64-3.5.49]# vim conf/wrapper.conf
#set.JAVA_HOME=/java/path
#wrapper.java.command=%JAVA_HOME%/bin/java# Tell the Wrapper to log the full generated Java command line.
#wrapper.java.command.loglevel=INFO# Java Main class.  This class must implement the WrapperListener interface
#  or guarantee that the WrapperManager class is initialized.  Helper
#  classes are provided to do this for you.
#  See the following page for details:
#  http://wrapper.tanukisoftware.com/doc/english/integrate.html
#wrapper.java.mainclass=org.tanukisoftware.wrapper.test.Main
#wrapper.java.mainclass=com.my.Test
wrapper.java.mainclass=org.tanukisoftware.wrapper.WrapperSimpleApp
#wrapper.app.parameter.1=com.my.Test2
wrapper.app.parameter.1=HelloWorldServer# Log level for notices about missing Java Classpath entries.
wrapper.java.classpath.missing.loglevel=WARN# Java Classpath (include wrapper.jar)  Add class path elements as
#  needed starting from 1
wrapper.java.classpath.1=../lib/wrappertest.jar
wrapper.java.classpath.2=../lib/wrapper.jar
wrapper.java.classpath.3=../lib/test-java*.jar
wrapper.java.classpath.4=../lib/classes# Java Library Path (location of Wrapper.DLL or libwrapper.so)
wrapper.java.library.path.1=../lib

2.3，拷贝启动脚本

[root@c7 wrapper-linux-x86-64-3.5.49]# cp src/bin/App.sh.in bin/helloworldserver
[root@c7 wrapper-linux-x86-64-3.5.49]# chmod +x helloworldserver[root@c7 wrapper-linux-x86-64-3.5.49]# vim bin/helloworldserver
#APP_NAME="@app.name@"
#APP_LONG_NAME="@app.long.name@"
APP_NAME="helloworldserver"
APP_LONG_NAME="helloworldserver"# If uncommented (and set to false), APP_NAME and APP_LONG_NAME will no longer
#  be passed to the wrapper. See documentation for details.
#APP_NAME_PASS_TO_WRAPPER=false# Wrapper
WRAPPER_CMD="./wrapper"
WRAPPER_CONF="../conf/wrapper.conf"

2.4，启动服务

前台启动服务，用来调试

说明：bin/start.sh 调用了 bin/wrapper【二进制文件】来启动程序

直接使用wrapper启动程序【前台】

#./wrapper <command> <configuration file> 
[root@c7 bin]# ./wrapper  -c ../conf/wrapper.conf
wrapper  | --> Wrapper Started as Console
wrapper  | Java Service Wrapper Community Edition 64-bit 3.5.49
wrapper  |   Copyright (C) 1999-2022 Tanuki Software, Ltd. All Rights Reserved.
wrapper  |     http://wrapper.tanukisoftware.com
wrapper  |
wrapper  | Launching a JVM...
jvm 1    | WrapperManager: Initializing...
jvm 1    | Accepting connections on port: 9000

使用sart.sh 启动程序【前台】

[root@c7 bin]# ./helloworldserver console
Running helloworldserver...
wrapper  | --> Wrapper Started as Console
wrapper  | Java Service Wrapper Community Edition 64-bit 3.5.49
wrapper  |   Copyright (C) 1999-2022 Tanuki Software, Ltd. All Rights Reserved.
wrapper  |     http://wrapper.tanukisoftware.com
wrapper  |
wrapper  | Launching a JVM...
jvm 1    | WrapperManager: Initializing...
jvm 1    | Accepting connections on port: 9000