1、测试java运行环境，安装jdk
2、获取环境变量
3、工具下载地址：
https://git.oschina.net/scimence/Jdk_Path_Config/raw/master/files/jdk-7u60-windows-i586.exe
https://git.oschina.net/scimence/Jdk_Path_Config/raw/master/files/jdk-7u60-windows-x64.exe
https://git.oschina.net/scimence/Jdk_Path_Config/raw/master/files/Jdk_Path_Config.exe
https://git.oschina.net/scimence/Jdk_Path_Config/raw/master/files/java运行环境测试.bat
https://git.oschina.net/scimence/Jdk_Path_Config/raw/master/files/jdk环境安装.docx