在Groovy中有没有办法装饰每个类来添加跟踪？

你可以通过类加载器匹配某种命名/包模式的类列表来旋转,然后为每个类似decorateMethodsWithLogging执行以下操作：

class Foo {
    def bar() {
        println "in bar"
    }

    def baz(String name) {
        println "in baz with $name"
    }
}



def decorateMethodsWithLogging(clazz) {
    def mc = clazz.MetaClass

    mc.invokeMethod = { String name,args ->
        println "before $name,args = $args"
        def result = mc.getMetaMethod(name,args).invoke(delegate,args)
        println "after $name"
        return result
    }
}


decorateMethodsWithLogging(Foo.class)

def f = new Foo()
f.bar()
f.baz("qux")

这打印

before bar,args = []
in bar
after bar
before baz,args = [qux]
in baz with qux
after baz