在windows平台不经过exe安装包安装java1.8

Steps

1. Download JDK from Oracle
2. Download and Install 7-zip from here
3. Open installition exe using 7-Zip
4. Extract the tools.zip
5. Extract the content of tools.zip to a folder (e.g. c:\jdk1.8).
6. Open the extracted folder in cmd prompt.
7. Execute for /r %x in (*.pack) do .\bin\unpack200 -r "%x" "%~dx%~px%~nx.jar" command
8. Set JAVA_HOME to the jdk (e.g c:\jdk) folder.
9. Add %JAVA_HOME%/bin to the PATH env variable.