我正在使用Java Service Wrapper（tanukisoftware）在centos linux机器上运行我的java服务器。我的java代码使用System.getenv
访问很少的环境变量当我在没有包装器的情况下运行程序时（如ant run）我可以访问我的环境变量但是当我通过包装器执行它时我不能（服务XX控制台）
所以我放弃并定义了属性，而不是我在wrapper.conf中定义的。这解决了java代码中的环境问题。
但后来我意识到我的log4j.xml也有一些环境变量引用。由于环境变量不能通过包装器获得，因此我的日志记录不起作用。
所以我必须通过包装器解决并使环境变量可用。
有趣的是，当作为服务运行时，我的wrapper.conf在Windows机器上工作，我可以访问环境变量...它只是它不适用于linux环境。
我在下面的wrapper.conf中用于两种环境。
#encoding=UTF-8
# Configuration files must begin with a line specifying the encoding
# of the the file.
#********************************************************************
# Wrapper License Properties (Ignored by Community Edition)
#********************************************************************
# Professional and Standard Editions of the Wrapper require a valid
# License Key to start. Licenses can be purchased or a trial license
# requested on the following pages:
# http://wrapper.tanukisoftware.com/purchase
# http://wrapper.tanukisoftware.com/trial
# Include file problems can be debugged by removing the first '#'
# from the following line:
##include.debug
# The Wrapper will look for either of the following optional files for a
# valid License Key. License Key properties can optionally be included
# directly in this configuration file.
#include ../conf/wrapper-license.conf
#include ../conf/wrapper-license-%WRAPPER_HOST_NAME%.conf
# The following property will output information about which License Key(s)
# are being found, and can aid in resolving any licensing problems.
#wrapper.license.debug=TRUE
#********************************************************************
# Wrapper Localization
#********************************************************************
# Specify the locale which the Wrapper should use. By default the system
# locale is used.
#wrapper.lang=en_US # en_US or ja_JP
# Specify the location of the Wrapper's language resources. If these are
# missing, the Wrapper will default to the en_US locale.
wrapper.lang.folder=../lang
#********************************************************************
# Wrapper Java Properties
#********************************************************************
# Java Application
# Locate the java binary on the system PATH:
wrapper.java.command=java
# Specify a specific java binary:
#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 Integration section
# of the documentation for details.
wrapper.java.mainclass=org.tanukisoftware.wrapper.WrapperSimpleApp
# Java Classpath (include wrapper.jar) Add class path elements as
# needed starting from 1
wrapper.java.classpath.1=../lib/wrapper.jar
wrapper.java.classpath.2=../bin/ventsimulator.jar
wrapper.java.classpath.3=../lib/netty-3.2.4.Final-sources.jar
wrapper.java.classpath.4=../lib/netty-3.2.4.Final.jar
wrapper.java.classpath.5=../lib/theronyxutils.jar
# Java Library Path (location of Wrapper.DLL or libwrapper.so)
wrapper.java.library.path.1=../lib
# Java Bits. On applicable platforms, tells the JVM to run in 32 or 64-bit mode.
wrapper.java.additional.auto_bits=TRUE
# Java Additional Parameters
# Wait 4 secs till application initializes.
# Make environment variables available as properties as an option, because on linux somehow the ENV variables are not available, through wrapper
set.default.MDASJ_HOME_WIN=C:/Projects/MDASJ/code/mdasj-core/MDASJ
set.default.MDASJ_PROJECTS_WIN=C:/Projects/MDASJ/code
set.default.MDASJ_HOME_LINUX=/opt/mdasjroot/MDASJ
set.default.MDASJ_PROJECTS_LINUX=/opt/mdasjroot
wrapper.java.additional.1=-Dorg.tanukisoftware.wrapper.WrapperSimpleApp.maxStartMainWait=4
wrapper.java.additional.2=-DMDASJ_HOME_WIN=%MDASJ_HOME_WIN%
wrapper.java.additional.3=-DMDASJ_PROJECTS_WIN=%MDASJ_PROJECTS_WIN%
wrapper.java.additional.4=-DMDASJ_HOME_LINUX=%MDASJ_HOME_LINUX%
wrapper.java.additional.5=-DMDASJ_PROJECTS_LINUX=%MDASJ_PROJECTS_LINUX%
# Initial Java Heap Size (in MB)
#wrapper.java.initmemory=3
# Maximum Java Heap Size (in MB)
#wrapper.java.maxmemory=64
# Application parameters. Add parameters as needed starting from 1
wrapper.app.parameter.1=com.theronyx.simulator.SimulatorManager
#********************************************************************
# Wrapper Logging Properties
#********************************************************************
# Enables Debug output from the Wrapper.
# wrapper.debug=TRUE
# Format of output for the console. (See docs for formats)
wrapper.console.format=PM
# Log Level for console output. (See docs for log levels)
wrapper.console.loglevel=INFO
# Log file to use for wrapper output logging.
wrapper.logfile=%MDASJ_PROJECTS%/log/ventsimulator-wrapper.log
# Format of output for the log file. (See docs for formats)
wrapper.logfile.format=LPTM
# Log Level for log file output. (See docs for log levels)
wrapper.logfile.loglevel=INFO
# Maximum size that the log file will be allowed to grow to before
# the log is rolled. Size is specified in bytes. The default value
# of 0, disables log rolling. May abbreviate with the 'k' (kb) or
# 'm' (mb) suffix. For example: 10m = 10 megabytes.
wrapper.logfile.maxsize=0
# Maximum number of rolled log files which will be allowed before old
# files are deleted. The default value of 0 implies no limit.
wrapper.logfile.maxfiles=0
# Log Level for sys/event log output. (See docs for log levels)
wrapper.syslog.loglevel=NONE
#********************************************************************
# Wrapper General Properties
#********************************************************************
# Allow for the use of non-contiguous numbered properties
wrapper.ignore_sequence_gaps=TRUE
# Title to use when running as a console
wrapper.console.title=OPUS Ventilator Simulator
#********************************************************************
# Wrapper JVM Checks
#********************************************************************
# Detect DeadLocked Threads in the JVM. (Requires Standard Edition)
wrapper.check.deadlock=TRUE
wrapper.check.deadlock.interval=60
wrapper.check.deadlock.action=RESTART
wrapper.check.deadlock.output=FULL
# Out Of Memory detection.
# (Simple match)
wrapper.filter.trigger.1000=java.lang.OutOfMemoryError
# (Only match text in stack traces if -XX:+PrintClassHistogram is being used.)
#wrapper.filter.trigger.1000=Exception in thread "*" java.lang.OutOfMemoryError
#wrapper.filter.allow_wildcards.1000=TRUE
wrapper.filter.action.1000=RESTART
wrapper.filter.message.1000=WRAPPER detected java.lang.OutOfMemoryError.....The JVM has run out of memory... RESTARTING
#********************************************************************
# Wrapper Email Notifications. (Requires Professional Edition)
#********************************************************************
# Common Event Email settings.
#wrapper.event.default.email.debug=TRUE
#wrapper.event.default.email.smtp.host=<SMTP_Host>
#wrapper.event.default.email.smtp.port=25
#wrapper.event.default.email.subject=[%WRAPPER_HOSTNAME%:%WRAPPER_NAME%:%WRAPPER_EVENT_NAME%] Event Notification
#wrapper.event.default.email.sender=<Sender email>
#wrapper.event.default.email.recipient=<Recipient email>
# Configure the log attached to event emails.
#wrapper.event.default.email.attach_log=TRUE
#wrapper.event.default.email.maillog.lines=50
#wrapper.event.default.email.maillog.format=LPTM
#wrapper.event.default.email.maillog.loglevel=INFO
# Enable specific event emails.
#wrapper.event.wrapper_start.email=TRUE
#wrapper.event.jvm_prelaunch.email=TRUE
#wrapper.event.jvm_start.email=TRUE
#wrapper.event.jvm_started.email=TRUE
#wrapper.event.jvm_deadlock.email=TRUE
#wrapper.event.jvm_stop.email=TRUE
#wrapper.event.jvm_stopped.email=TRUE
#wrapper.event.jvm_restart.email=TRUE
#wrapper.event.jvm_failed_invocation.email=TRUE
#wrapper.event.jvm_max_failed_invocations.email=TRUE
#wrapper.event.jvm_kill.email=TRUE
#wrapper.event.jvm_killed.email=TRUE
#wrapper.event.jvm_unexpected_exit.email=TRUE
#wrapper.event.wrapper_stop.email=TRUE
# Specify custom mail content
wrapper.event.jvm_restart.email.body=The JVM was restarted.\n\nPlease check on its status.\n
#********************************************************************
# Wrapper Windows NT/2000/XP Service Properties
#********************************************************************
# WARNING - Do not modify any of these properties when an application
# using this configuration file has been installed as a service.
# Please uninstall the service before modifying this section. The
# service can then be reinstalled.
# Name of the service
wrapper.name=VentSimulator
# Display name of the service
wrapper.displayname=OPUS Vent Simulator
# Description of the service
wrapper.description=Runs a Vent Simulation program to use with OPUS MDASJ, just for testing purposes
# Service dependencies. Add dependencies as needed starting from 1
wrapper.ntservice.dependency.1=
# Mode in which the service is installed. AUTO_START, DELAY_START or DEMAND_START
wrapper.ntservice.starttype=AUTO_START
# Allow the service to interact with the desktop.
wrapper.ntservice.interactive=false
答案 0 :(得分：1)
慷慨地使用参数wrapper.java.additional和-D; - ）
您可能已经知道环境参数可能并非适用于所有人 用户/进程，因此您应该通过添加其他参数来帮助应用程序 命令行。
答案 1 :(得分：1)
在Linux上看不到环境变量是有道理的。尝试直接调用/etc/init.d脚本来运行应用程序。它应该工作。发生的情况是service命令重置环境变量（因此服务始终在一致的环境中运行）。
答案 2 :(得分：0)
你使用的是什么java版本？
在1.3 getenv中被弃用，但在1.5中恢复了。
什么是System.getenv（“xxx”）返回？
它是否只是找不到您定义的变量或常见的变量（例如PATH等）？
欢呼声
答案 3 :(得分：0)
我偶然发现了yajsw-beta-12.05版本的同样问题。
所以我如何偶然发现它（这同样重要）：我正在使用.sh文件来调用java -jar wrapper和东西......并且正在导出一个环境变量。并且在应用程序中看不到该env变量。这就是我的搜索开始的地方。
我没有使用像install install和all这样的包装器脚本。我宁愿直接使用wrapper.jar并使用非常修剪的yajsw版本。所以我需要传递环境变量。我没有选择{wrapper.java.additional}方式，因为我的变量应该具有动态值。 我查看了{wrapper.app.env.key1 = value1}，这确实为app提供了环境变量。但是我想要一个动态值。
但最终我发现的是，如果我在wrapper.conf文件中有wrapper.app.env.DUMMY=value这样的虚拟条目，那么linux shell脚本中的所有导出变量都会在应用程序中显示出来。
希望这有助于某人。
答案 4 :(得分：0)
在opt/apacheds-2.0.0.AM26/conf/wrapper.conf中设置以下内容（$ JAVA_HOME / bin / java）对我有用。
wrapper.java.command=/usr/lib/jvm/jdk1.8.0_151/jre/bin/java