Swagger suddenly went crazy

http://xx:8087/context/v2/api-docs

Call is blank 404

Console Report ：

Unable to find specification for group

Be careful ： And others Unable to find specification for group 'default' Different

Look at the log, it seems log {} Why . In fact, it can be seen that what others need is default, What I need is ""

html newspaper ：

 

Step on the pit ：

pom in swagger edition , useless .

Copy others' configuration , useless .

group 'default', useless .（ In fact, it is close to the answer ）

Cross domain , No .

Final ：

https://www.cnblogs.com/bwqueen/p/16040677.html

 .groupName("")