[主要] A method/constructor shouldnt explicitly throw java.lang.Exception 方法或构造方法不应该显式的抛Exception
It is unclear which exceptions that can be thrown from the methods. It might be difficult to document and understand the vague interfaces. Use either a class derived from RuntimeException or a checked exception.
[主要] Avoid really long methods.
Violations of this rule usually indicate that the method is doing too much. Try to reduce the method size by creating helper methods and removing any copy/pasted code.
