在Windows安装javaSE8

@echo off


%1 mshta vbscript:CreateObject("Shell.Application").ShellExecute("cmd.exe","/c %~s0 ::","","runas",1)(window.close)&&exit



echo **********************************************
echo.
echo                   将要配置环境变量jdk
echo.
echo       安装请按任意键，退出直接关闭窗口
echo.
echo **********************************************

pause



set JAVA_HOME=C:\Program Files\Java\jdk1.8.0_31    //java安装目录。
set PATH=%PATH%;%%JAVA_HOME%%\bin;%%JAVA_HOME%%\jre\bin
set CLASSPATH=.;%%JAVA_HOME%%\lib\dt.jar;%%JAVA_HOME%%\lib\tools.jar

set RegV=HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment

reg add "%RegV%" /v "JAVA_HOME" /d "%JAVA_HOME%" /f
reg add "%RegV%" /v "Path" /t REG_EXPAND_SZ /d "%PATH%" /f
reg add "%RegV%" /v "CLASSPATH" /d "%CLASSPATH%" /f
mshta vbscript:msgbox("Java环境已成功注册！",64,"成功")(window.close)

#-Dfile.encoding=utf-8

exit

3.检查
命令提示符（cmd） 中键入java -version和javac -version

Microsoft Windows [版本 6.1.7601]
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C:\Users\Administrator>java -version
java version "1.8.0_31"
Java(TM) SE Runtime Environment (build 1.8.0_31-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)

C:\Users\Administrator>javac -version
javac 1.8.0_31

C:\Users\Administrator>