提供的依赖：dependency:tree
+- com.alibaba.csp:sentinel-springboot-starter:jar:3.0.1-SNAPSHOT:compile
INFO\] \| +- com.alibaba.csp:sentinel-datasource-nacos:jar:3.0.1:compile \[INFO\] \| +- com.alibaba.csp:sentinel-datasource-extension:jar:3.0.1:compile \[INFO\] \| \| \\- com.alibaba.csp:sentinel-core:jar:3.0.1:compile \[INFO\] \| +- com.alibaba.csp:sentinel-spring-webmvc-adapter:jar:3.0.1:compile \[INFO\] \| +- com.alibaba.csp:sentinel-transport-simple-http:jar:3.0.1:compile \[INFO\] \| +- com.alibaba.csp:sentinel-transport-common:jar:3.0.1-SNAPSHOT:compile \[INFO\] \| \\- com.alibaba.csp:sentinel-parameter-flow-control:jar:3.0.1:compile 引用方打印的 dependency:tree +- com.alibaba.csp:sentinel-springboot-starter:jar:3.0.1-SNAPSHOT:compile \[INFO\] \| +- com.alibaba.csp:sentinel-datasource-nacos:jar:1.8.1:compile \[INFO\] \| +- com.alibaba.csp:sentinel-datasource-extension:jar:1.8.1:compile \[INFO\] \| \| \\- com.alibaba.csp:sentinel-core:jar:1.8.1:compile \[INFO\] \| +- com.alibaba.csp:sentinel-spring-webmvc-adapter:jar:1.8.1:compile \[INFO\] \| +- com.alibaba.csp:sentinel-transport-simple-http:jar:1.8.1:compile \[INFO\] \| +- com.alibaba.csp:sentinel-transport-common:jar:3.0.1-SNAPSHOT:compile \[INFO\] \| \\- com.alibaba.csp:sentinel-parameter-flow-control:jar:1.8.1:compile 解决方案，找到 \~/.m2/repository/xxxx.1.8.1 这个目录下把依赖全删了，问题解决