1.eclipse
China University of Science and Technology: http://mirrors.ustc.edu.cn/eclipse/
Chinese Academy of Sciences: http://mirrors.opencas.cn/eclipse/
Northeastern University: http://ftp.neu.edu.cn/mirrors/eclipse/,http://mirror.neu.edu.cn/eclipse/
2. Android SDK
Chinese Academy of Sciences: http://mirrors.opencas.ac.cn/android/repository/
NYP: http://mirror.nyist.edu.cn/android/repository/
Chinese Academy of Sciences: http://mirrors.opencas.cn/android/repository/
Tencent: http://android-mirror.bugly.qq.com:8080/android/repository/ (current limit is not recommended )