Java环境一键配置，需要手动输入jdk路劲。

echo off
 
:begin
set/p jdkpath=please input your jdkpath and click enter:
ECHO %jdkpath%
 
IF EXIST %jdkpath%. goto action ELSE goto error. 
 
:error
ECHO input error [ %jdkpath% ] not exist
goto begin
 
:action
 
ECHO 1. create JAVA_HOME envirment %jdkpath%
ECHO 2. set PATH envirment：add %jdkpath%\bin
ECHO 3. create CLASSPATH envirment %jdkpath%\lib
 
setx /M JAVA_HOME "%jdkpath%"
setx /M CLASSPATH ".;%JAVA_HOME%\lib;%%JAVA_HOME%%\lib\dt.jar;%%JAVA_HOME%%\lib\tools.jar"
setx /M PATH "%%JAVA_HOME%%\bin;%%JAVA_HOME%%\jre\bin;"
ECHO OK!
pause