规则如下:".equals()" should not be used to test the values of "Atomic" classes:equals()方法不应该用在原子类型的数据上(如:AtomicInteger, AtomicLong, AtomicBoolean)."=+" should not be used instead of "+=":"=+"不可以替代 “+=”."=
maven编译工程报错File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!在properties添加源码编码设置解决: <properties> <project.build.sourceEncoding>UTF-