IDEA查看系统类源码、下载源码Cannot download sources Sources not found for: org.springframework.security:sp

下载源码：

我们点击 Download Sources 时，报错：

Cannot download sources
Sources not found for:
org.springframework.security:spring-security-config:6.1.0

解决：

输入命令：mvn dependency:resolve -Dclassifier=sources 出现下面的图案代表成功