个人理解

forward:端口映射

将本地PC指定Port端口,映射到设备手机指定Port端口上.

以便解决 PC -> Phone 的访问问题

PC 作为Client客户端 可以任意访问 Phone 上的 Server 服务器

参考例子

广域网

启动AirDroid APP - PC通过http://web.airdroid.com访问

同局域网：

启动AirDroid APP - PC直接访问指定局域网网址

不同网段（不同局域网）:

启动AirDroid APP - 通过USB连接手机 -adb forward tcp:8888 tcp:8888- 在PC上访问http://127.0.0.1:8888

reverse:反向代理

• Phone 无法访问某个 第三方服务Server服务器
• PC 却可以访问该 第三方服务Server服务器
• Phone -> PC 通过PC来访问 第三方服务Server服务器

参考例子

• 在设备上运行 - React Native 中文网

• Android Tip: adb reverse | Grio Blog

  $ adb reverse tcp:80 tcp:3000
  To redirect your phone’s port 80 to your computer’s port 3000.
  

常用命令

adb forward --list

adb forward --remove-all

adb forward tcp:8888 tcp:8888

http://127.0.0.1:8888/

adb help

connect HOST[:PORT]      connect to a device via TCP/IP [default port=5555]

disconnect [HOST[:PORT]]
disconnect from given TCP/IP device [default port=5555], or all

forward --list           list all forward socket connections
forward [--no-rebind] LOCAL REMOTE
forward socket connection using:
  tcp:<port> (<local> may be "tcp:0" to pick any open port随机绑定本地能正常打开的端口)
  localabstract:<unix domain socket name>
  localreserved:<unix domain socket name>
  localfilesystem:<unix domain socket name>
  dev:<character device name>
  jdwp:<process pid> (remote only)
forward --remove LOCAL   remove specific forward socket connection
forward --remove-all     remove all forward socket connections

ppp TTY [PARAMETER...]   run PPP over USB

reverse --list           list all reverse socket connections from device
reverse [--no-rebind] REMOTE LOCAL
reverse socket connection using:
  tcp:<port> (<remote> may be "tcp:0" to pick any open port)
  localabstract:<unix domain socket name>
  localreserved:<unix domain socket name>
  localfilesystem:<unix domain socket name>
reverse --remove REMOTE  remove specific reverse socket connection
reverse --remove-all     remove all reverse socket connections from device