[Java知识库]【踩坑idea 2021.2.3】【Gradle】 Building with Lombok‘s @Slf4j and Intellij: Cannot find symbol log

对于idea 2020.3以上版本都带有lombok插件，用maven正常运行的项目，由于改用gradle7.3，导致报错Cannot find symbol log，排查lombok有问题，将注意事项记录一下，希望对大家有用。

import?lombok.extern.slf4j.Slf4j;

@Slf4j
public?class?TestClass
{
? ??public?TestClass()
? ??{
? ? ? ? log.info("Hello!");
? ??}
}

第一步：使能?Annotation Processor，windows路径File -> Settings -> Build, Execution, Deployment -> Compiler -> Annotation Processor，mac路径Preferences-> Build, Execution, Deployment -> Compiler -> Annotation Processor

第二步：在build.gradle中，增加?dependency

 compileOnly 'org.projectlombok:lombok:1.18.22'
 annotationProcessor 'org.projectlombok:lombok:1.18.22'

?如果在tests也有调用，需要添加下面注释

testCompileOnly 'org.projectlombok:lombok:1.18.12'  
testAnnotationProcessor 'org.projectlombok:lombok:1.18.12'

可以参考一下：

https://stackoverflow.com/questions/14866765/building-with-lomboks-slf4j-and-intellij-cannot-find-symbol-log?https://developervisits.wordpress.com/2020/09/16/building-with-lomboks-slf4j-and-intellij-cannot-find-symbol-log/