If you have got your jAccount "abc":

1) you will have got a SJTU email as abc@sjtu.edu.cn, and you can login in https://mail.sjtu.edu.cn；

2) you can use SJTU wifi with jAccount myname and password;

3) you will have got a Cloud Disk as Pan , and you can login in https://pan.sjtu.edu.cn;

4) you will login in many websites with jAccount, such as

   https://my.sjtu.edu.cn

   https://electsys.sjtu.edu.cn/edu/

   http://www.yjs.sjtu.edu.cn

   https://hr.sjtu.edu.cn/

   https://www.jdcw.sjtu.edu.cn/

   ......

When you login in ,please take notice of the logo "统一身份认证" and make sure the following interface.