下载jdk1.7版本（具体为jdk-8u25，适用于Windows x64系统，版本号为8.0.250，内部构建号为18.1413446274）

jdk的iso文件下载Thank you for downloading this release of the Java™ Platform, Standard Edition Development Kit (JDK™). The JDK is a development environment for building applications, applets, and components using the Java programming language. The JDK includes tools useful for developing and testing programs written in the Java programming language and running on the Java platform.