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今天在網上瀏覽網頁，發現一片文章，介紹如何使用idea的 java 64位運行idea，用32位java運行程序。

設置環境變量，IDE_JDK_64,選擇64位的jdk。在idea下有一個idea.bat文件，里面內容如下：

@ECHO OFF

::----------------------------------------------------------------------

:: IntelliJ IDEA startup script.

::----------------------------------------------------------------------

:: ---------------------------------------------------------------------

:: Locate a JDK installation directory which will be used to run the IDE.

:: Try (in order): IDEA_JDK, ..\jre, JDK_HOME, JAVA_HOME.

::IF EXIST "%IDEA_JDK%" SET JDK=%IDEA_JDK%---這句是被我注釋調了，換成了IDEA_JDK_64

:: ---------------------------------------------------------------------

IF EXIST "%IDEA_JDK_64%" SET JDK=%IDEA_JDK_64%

IF NOT "%JDK%" == "" GOTO jdk

IF EXIST "%~dp0\..\jre" SET JDK=%~dp0\..\jre

IF NOT "%JDK%" == "" GOTO jdk

IF EXIST "%JDK_HOME%" SET JDK=%JDK_HOME%

IF NOT "%JDK%" == "" GOTO jdk

IF EXIST "%JAVA_HOME%" SET JDK=%JAVA_HOME%

IF "%JDK%" == "" GOTO error

:jdk

SET JAVA_EXE=%JDK%\bin\java.exe

IF NOT EXIST "%JAVA_EXE%" SET JAVA_EXE=%JDK%\jre\bin\java.exe

IF NOT EXIST "%JAVA_EXE%" GOTO error

SET JRE=%JDK%

IF EXIST "%JRE%\jre" SET JRE=%JDK%\jre

SET BITS=

IF EXIST "%JRE%\lib\amd64" SET BITS=64

:: ---------------------------------------------------------------------

:: Ensure IDE_HOME points to the directory where the IDE is installed.

:: ---------------------------------------------------------------------

SET IDE_BIN_DIR=%~dp0

SET IDE_HOME=%IDE_BIN_DIR%\..

SET MAIN_CLASS_NAME=%IDEA_MAIN_CLASS_NAME%

IF "%MAIN_CLASS_NAME%" == "" SET MAIN_CLASS_NAME=com.intellij.idea.Main

IF NOT "%IDEA_PROPERTIES%" == "" SET IDE_PROPERTIES_PROPERTY="-Didea.properties.file=%IDEA_PROPERTIES%"

:: ---------------------------------------------------------------------

:: Collect JVM options and properties.

:: ---------------------------------------------------------------------

SET VM_OPTIONS_FILE=%IDEA_VM_OPTIONS%

IF "%VM_OPTIONS_FILE%" == "" SET VM_OPTIONS_FILE=%IDE_BIN_DIR%\idea%BITS%.exe.vmoptions

SET ACC=

FOR /F "usebackq delims=" %%i IN ("%VM_OPTIONS_FILE%") DO CALL "%IDE_BIN_DIR%\append.bat" "%%i"

IF EXIST "%VM_OPTIONS_FILE%" SET ACC=%ACC% -Djb.vmOptionsFile="%VM_OPTIONS_FILE%"

SET COMMON_JVM_ARGS="-XX:ErrorFile=%USERPROFILE%\java_error_in_IDEA_%%p.log" "-Xbootclasspath/a:%IDE_HOME%/lib/boot.jar" -Didea.paths.selector=IntelliJIdea14 %IDE_PROPERTIES_PROPERTY%

SET IDE_JVM_ARGS=

SET ALL_JVM_ARGS=%ACC% %COMMON_JVM_ARGS% %IDE_JVM_ARGS% %REQUIRED_JVM_ARGS%

SET CLASS_PATH=%IDE_HOME%\lib\bootstrap.jar

SET CLASS_PATH=%CLASS_PATH%;%IDE_HOME%\lib\extensions.jar

SET CLASS_PATH=%CLASS_PATH%;%IDE_HOME%\lib\util.jar

SET CLASS_PATH=%CLASS_PATH%;%IDE_HOME%\lib\jdom.jar

SET CLASS_PATH=%CLASS_PATH%;%IDE_HOME%\lib\log4j.jar

SET CLASS_PATH=%CLASS_PATH%;%IDE_HOME%\lib\trove4j.jar

SET CLASS_PATH=%CLASS_PATH%;%IDE_HOME%\lib\jna.jar

SET CLASS_PATH=%CLASS_PATH%;%JDK%\lib\tools.jar

IF NOT "%IDEA_CLASS_PATH%" == "" SET CLASS_PATH=%CLASS_PATH%;%IDEA_CLASS_PATH%

:: ---------------------------------------------------------------------

:: Run the IDE.

:: ---------------------------------------------------------------------

SET OLD_PATH=%PATH%

SET PATH=%IDE_BIN_DIR%;%PATH%

"%JAVA_EXE%" %ALL_JVM_ARGS% -cp "%CLASS_PATH%" %MAIN_CLASS_NAME% %*

SET PATH=%OLD_PATH%

GOTO end

:error

ECHO ERROR: cannot start IntelliJ IDEA.

ECHO No JDK found. Please validate either IDEA_JDK, JDK_HOME or JAVA_HOME points to valid JDK installation.

ECHO

PAUSE

:end

保存后，可以點擊idea64位，進行運行，或者點解，idea.bat

轉載于:https://my.oschina.net/u/2497999/blog/538791

總結

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