Spring Boot的JAVA_OPTS配置参数

本文详细介绍了如何通过配置JAVA_OPTS来优化Java应用的运行环境,包括设置JVM参数、指定Spring配置文件、调整内存分配等。重点讲解了.conf配置文件的使用方法及权限设置,适用于Linux环境下的Java应用优化。

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.conf配置

JAVA_OPTS="-Djava.library.path=/var/xxx/bin/lib -Dspring.profiles.active=prod -server -Xms6g -Xmx6g -XX:MaxGCPauseMillis=500 -XX:+UseParallelGC"

注意:.conf文件名,必须和jar的文件名保持一致,必须放在同一个文件夹。不能用于Win服务器。

$ chmod 400 your-app.conf
$ sudo chown root:root your-app.conf
# 保证拥有者只能读取改配置文件

参考

@echo off setlocal chcp 65001 > nul set CURRENT_DIR=%cd% cd .. set CAF_HOME=%cd% cd %CURRENT_DIR% if not exist %CAF_HOME%\bin\caf-server.bat ( goto end ) set CAF_BASE=%CAF_HOME% call %CAF_BASE%\bin\config.bat set HBN_TOOL=%CAF_BASE%\bin\hibernate-selector.bat if not exist %HBN_TOOL% ( goto end ) call %HBN_TOOL% %* set CLASSPATH= set CAF_BOOTSTRAP=%CAF_HOME%\%CAF_SERVER_PATH%\runtime\caf-bootstrap.jar set CAF_BOOTSTRAP_LANUCHER=org.springframework.boot.loader.PropertiesLauncher set CAF_MODULE_PATHS="%CAF_HOME%\%CAF_SERVER_PATH%\runtime\3rd","%CAF_HOME%\%CAF_SERVER_PATH%\runtime\libs" set CAF_BOOT_CONFIG_PATH=%CAF_HOME%/%CAF_SERVER_PATH%/runtime/ set JAVA_OPTS=%JAVA_OPTS% -Dparallel.startup=%CAF_PARALLEL_INIT% set /a totalMem=16777216+1 for /f "skip=1" %%i in ('wmic os get TotalVisibleMemorySize') do ( if %%i geq 0 set totalMem=%%i ) set /a "memorySize=%totalMem%/1024" set /a "totalMem=%memorySize%/10*6" set XmxSize=%totalMem%M if not defined CAF_MEM_OPTS ( if %memorySize% leq 16384 set CAF_MEM_OPTS=-Xmx%XmxSize% ) if not exist %CAF_HOME%\bin\java-home.bat ( goto end ) call %CAF_HOME%\bin\java-home.bat %1 if errorlevel 1 goto end if "%CLASSPATH%" == """" goto emptyClasspath set "CLASSPATH=%CLASSPATH%;" :emptyClasspath set CLASSPATH=%CLASSPATH%;%CAF_HOME%\%CAF_SERVER_PATH%\runtime\caf-bootstrap.jar if "%CAF_TMPDIR%" == """" goto gotTmpdir :gotTmpdir set CAF_TMPDIR=%CAF_BASE%\temp if not "%JSSE_OPTS%" == """" goto gotJsseOpts set JSSE_OPTS=-Djdk.tls.ephemeralDHKeySize=2048 :gotJsseOpts set JAVA_OPTS=%JAVA_OPTS% %JSSE_OPTS% set JAVA_OPTS=%JAVA_OPTS% -Djava.protocol.handler.pkgs=org.apache.caf.webresources set "JDK_JAVA_OPTIONS=%JDK_JAVA_OPTIONS% --add-opens=java.base/java.lang=ALL-UNNAMED" set "JDK_JAVA_OPTIONS=%JDK_JAVA_OPTIONS% --add-opens=java.base/java.io=ALL-UNNAMED" set "JDK_JAVA_OPTIONS=%JDK_JAVA_OPTIONS% --add-opens=java.base/java.util=ALL-UNNAMED" set "JDK_JAVA_OPTIONS=%JDK_JAVA_OPTIONS% --add-opens=java.base/java.util.concurrent=ALL-UNNAMED" set "JDK_JAVA_OPTIONS=%JDK_JAVA_OPTIONS% --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED" set ENDORSED_PROP=ignore.endorsed.dirs if "%JAVA_ENDORSED_DIRS%" == """" goto noEndorsedVar set ENDORSED_PROP=java.endorsed.dirs goto doneEndorsed :noEndorsedVar if not exist %CAF_HOME%\endorsed goto doneEndorsed set ENDORSED_PROP=java.endorsed.dirs :doneEndorsed set MAINCLASS=%CAF_BOOTSTRAP_LANUCHER% --spring.config.location=%CAF_BOOT_CONFIG_PATH% set ACTION=start set SECURITY_POLICY_FILE= set DEBUG_OPTS= set JPDA= set DEBUG_PORT="5005" if ""%1"" == ""run"" goto doRun if ""%1"" == ""start"" goto doStart goto end :doRun shift if not ""%1"" == ""-security"" goto execRunCmd shift set "SECURITY_POLICY_FILE=%CAF_BASE%\conf\caf.policy" goto execRunCmd :execRunCmd set CMD_LINE_ARGS= :setRunArgs if ""%1""=="""" goto doneRunSetArgs set CMD_LINE_ARGS=%CMD_LINE_ARGS% %1 shift goto setRunArgs :doneRunSetArgs "%JAVA_HOME%\bin\java" %CAF_OPTS% -server -Djava.io.tmpdir=%CAF_TMPDIR% -Dloader.path=%CAF_MODULE_PATHS% -Dfile.encoding=UTF-8 %JAVA_OPTS% -Dserver.runtime.path.name=%CAF_SERVER_PATH% %CAF_MEM_OPTS% -Dspring.profiles.active=prod -classpath %CLASSPATH% %MAINCLASS% goto end :doStart shift if "%TITLE%" == """" set TITLE=iGIX Server set _EXECJAVA=start "%TITLE%" cmd /k if not ""%1"" == ""-security"" goto execStartCmd shift set "SECURITY_POLICY_FILE=%CAF_BASE%\conf\caf.policy" goto execStartCmd :execStartCmd set CMD_LINE_ARGS= :setStartArgs if ""%1""=="""" goto doneSetStartArgs set CMD_LINE_ARGS=%CMD_LINE_ARGS% %1 shift goto setStartArgs :doneSetStartArgs %_EXECJAVA% "chcp 65001 > nul && %_RUNJAVA% %CAF_OPTS% -server -Djava.io.tmpdir=%CAF_TMPDIR% -Dloader.path=%CAF_MODULE_PATHS% -Dfile.encoding=UTF-8 %JAVA_OPTS% -Dserver.runtime.path.name=%CAF_SERVER_PATH% %CAF_MEM_OPTS% -Dspring.profiles.active=prod -classpath %CLASSPATH% %MAINCLASS% %CMD_LINE_ARGS%" goto end :end详细解释一下
最新发布
03-27
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