Implement SSO(single sign-on) with DSS

[Adamyuanyuan]

We need implement SSO with DSS, to facilitate users to jump from DSS to Exchangis

[schumiyi]

##Notes
The following steps are required so that sso from DSS to Exchangis can work well: 0. The environment of Exchangis: a. Exchangis-0.5.0 b. DSS-0.9.0: Sso is dependent on dss-appjoint-auth-0.9.0.jar by default, which is based on DSS-0.9.0 c. Linkis-0.9.4: dss-0.9.0 is based on Linkis-0.9.4

1. Add the following config to /modules/exchangis-service/conf/auth.properties

auth.redirect.url=/api/v1/auth/redirect

2. Execute the following DML in database of DSS:

update dss_application set redirect_url='http://ip:port/api/v1/auth/redirect' where name='exchangis';

[jefftlin]

It had been solved! The latest version is exchangis1.1.1. You can pay attention to it.