之前一直没有遇到提示我升级的消息，毕竟我的电脑 都已经70多天没有关过机了。
要不是升级美洲狮，估计我还会一直不关。。。
这回关了之后，打开phpstorm，立刻提醒我要升级java se。但是用software update功能下载实在太慢。所以，找到官网的KB页面，果然找到了。。。http://support.apple.com/kb/DL1515
About Java for OS X 2012-004
Java for OS X 2012-004 delivers improved security, reliability, and compatibility by updating Java SE 6 to 1.6.0_33.
This update configures the Java plug-in to deactivate when no applets are run for an extended period of time. If the prior update named "Java for OS X 2012-003" was not installed, this update will disable the Java web plug-in immediately. Java applets may be re-enabled by clicking the region labeled "Inactive plug-in" on a web page.
Please quit any web browsers and Java applications before installing this update.
See http://support.apple.com/kb/HT5267 for more details about this update.
See http://support.apple.com/kb/HT1222 for information about the security content of this update.
如果你一次次的升级都有的话，就不用下载这么大的了。不过这个包比较大，也可以直接下载。。。
下载地址是：http://support.apple.com/downloads/DL1515/en_US/JavaForOSX.dmg
建议用迅雷。哈哈