Webpack 中 Plugin 的作用是什么？常用 plugin 有哪些？

idea编译报错问题如下：

java: You aren't using a compiler supported by lombok, so lombok will not work and has been disabled.
  Your processor is: com.sun.proxy.$Proxy26
  Lombok supports: OpenJDK javac, ECJ

解决方案：在idea配置中File->Settings中找到配置如下
-Djps.track.ap.dependencies=false