我这边的校园网使用强制门户来实现登录。

当要求你通过浏览器登录时，按F12打开控制台，选中网络，找到那个发送你学号、密码的请求，右键，复制为curl，我这边的复制结果如下所示（******为打码内容）：

curl --silent 'http://10.7.0.103:30004/byod/byodrs/login/defaultLogin' --compressed -X POST -H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:122.0) Gecko/20100101 Firefox/122.0' -H 'Accept: application/json, text/javascript, */*; q=0.01' -H 'Accept-Language: zh-CN,en-US;q=0.7,en;q=0.3' -H 'Accept-Encoding: gzip, deflate' -H 'Content-Type: application/json' -H 'X-Requested-With: XMLHttpRequest' -H 'Origin: http://10.7.0.103:30004' -H 'Connection: keep-alive' -H 'Referer: http://10.7.0.103:30004/byod/view/byod/template/templatePc.html?customId=26&nasRedirectUrl=http://10.7.0.103:30004/byod/index.html?usermac=******&userip=10.121.3.156&userurl=http://detectportal.firefox.com/canonical.html&original=http://detectportal.firefox.com/canonical.html&ssid=E' -H 'Cookie: testcookie=yes; userip=10.121.3.156' -H 'DNT: 1' -H 'Sec-GPC: 1' --data-raw '{"userName":"******","userPassword":"******","serviceSuffixId":"-1","dynamicPwdAuth":false,"code":"","codeTime":"","validateCode":"","licenseCode":"","userGroupId":0,"validationType":0,"guestManagerId":0,"shopIdE":null,"wlannasid":null}')

打开控制台，粘贴你复制的东西，回车，应该会返回“成功登录校园网！”之类的结果。

确认通过curl发送这个请求可以做到登录校园网后，接下来你需要做的就是让你电脑在登录时自动运行一下这段命令。

下面以 GNU/Linux 为例，使用systemd做到用户登录时自动执行某个服务：

先把上面代码转换成脚本的形式，此时可以请ChatGPT加一个登录失败自动重试逻辑：

校园网登录.sh

#!/bin/bash

while true
do
    response=$(curl --silent 'http://10.7.0.103:30004/byod/byodrs/login/defaultLogin' --compressed -X POST -H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:122.0) Gecko/20100101 Firefox/122.0' -H 'Accept: application/json, text/javascript, */*; q=0.01' -H 'Accept-Language: zh-CN,en-US;q=0.7,en;q=0.3' -H 'Accept-Encoding: gzip, deflate' -H 'Content-Type: application/json' -H 'X-Requested-With: XMLHttpRequest' -H 'Origin: http://10.7.0.103:30004' -H 'Connection: keep-alive' -H 'Referer: http://10.7.0.103:30004/byod/view/byod/template/templatePc.html?customId=26&nasRedirectUrl=http://10.7.0.103:30004/byod/index.html?usermac=******&userip=10.121.3.156&userurl=http://detectportal.firefox.com/canonical.html&original=http://detectportal.firefox.com/canonical.html&ssid=E' -H 'Cookie: testcookie=yes; userip=10.121.3.156' -H 'DNT: 1' -H 'Sec-GPC: 1' --data-raw '{"userName":"******","userPassword":"******","serviceSuffixId":"-1","dynamicPwdAuth":false,"code":"","codeTime":"","validateCode":"","licenseCode":"","userGroupId":0,"validationType":0,"guestManagerId":0,"shopIdE":null,"wlannasid":null}')

    code=$(echo $response | jq -r .code)

    if [ $code -eq 0 ] 
    then
        echo "成功登录校园网！"
        exit 0
    else
        echo $response
        echo "登录失败，Retrying in 1 minute..."
        sleep 60
    fi
done

然后参考archwiki/Systemd/用户，在~/.config/systemd/user加一个校园网登录.service文件：

校园网登录.service

[Unit]
Description=校园网自动登录
After=network.target
[Service]
ExecStart=sh ./校园网登录.sh
WorkingDirectory=%h/Program/运维自动化

[Install]
WantedBy=default.target

然后 systemctl --user daemon-reload 让 systemd 用户实例检测到 校园网登录 这个服务。
先 systemctl --user start 校园网登录.service 单次启动 校园网登录 服务，然后，查看状态：

systemctl --user status 校园网登录.service
○ 校园网登录.service - 校园网自动登录
     Loaded: loaded (/home/voyage200/.config/systemd/user/zhbit_net.service; disabled; preset: enabled)
     Active: inactive (dead) since Sun 2024-11-24 17:44:53 CST; 2min 49s ago
   Duration: 258ms
 Invocation: 49c7ae4fd0074bccbf3b04d7953941bb
    Process: 31271 ExecStart=sh ./校园网登录.sh (code=exited, status=0/SUCCESS)
   Main PID: 31271 (code=exited, status=0/SUCCESS)
   Mem peak: 2.3M
        CPU: 14ms

11月 24 17:44:53 VC200 systemd[639]: Started 校园网自动登录.
11月 24 17:44:53 VC200 sh[31271]: 成功登录校园网！

通过日志可以观察到脚本正常发送了请求，并接收到了来自校园网认证服务器的成功登录的回应。
确认服务正常运行后，我们 systemctl --user enable 校园网登录.service 就大功告成了。

Tips : systemctl --user enable --now 校园网登录.service 相当于先 enable 校园网登录.service 后 start 校园网登录.service。

对于 windows 用户只需要让GPT把上面脚本由.sh转换成.ps1即可，然后使用“任务计划程序”也能做到登录后自动执行脚本的效果。