Java-获取参数传递给方法？

是否可以使用诸如AspectJ之类的AOP库来实现这一目标？

当然可以。这是AspectJ中典型的初学者练习，如下所示：

public class SampleClass {    public SampleClass() { super(); }    public SampleClass(String s) { this(); }    public SampleClass(int i) { this(); }    public void method01(String s, Number n, Throwable t) {}    public void method02(int i, String s, double d) {}    public void method03(String s) {}    public void method04() {}    public void method05(String s, Number n, double d) {}    public static void main(String[] args) {        new SampleClass().method01("foo", new Integer(11), new RuntimeException("error"));        new SampleClass("test").method02(11, "bar", Math.PI);        new SampleClass(123).method03("zot");        new SampleClass("another test").method04();        new SampleClass(456).method05("baz", new Integer(11), Math.E);    }}

现在，您只需要编写一个方面即可拦截所有方法执行（以及可选的构造函数执行，如下所示）：

public aspect MethodArgsAspect {    pointcut allMethods()      : execution(* *(..));    pointcut allConstructors() : execution(*.new(..));    before() : !within(MethodArgsAspect) && (allMethods() || allConstructors()) {        System.out.println(thisJoinPointStaticPart.getSignature());        for (Object arg : thisJoinPoint.getArgs()) System.out.println("    " + arg);    }}

运行时

SampleClass.main

void SampleClass.main(String[])    [Ljava.lang.String;@7fdcdeSampleClass()void SampleClass.method01(String, Number, Throwable)    foo    11    java.lang.RuntimeException: errorSampleClass()SampleClass(String)    testvoid SampleClass.method02(int, String, double)    11    bar    3.141592653589793SampleClass()SampleClass(int)    123void SampleClass.method03(String)    zotSampleClass()SampleClass(String)    another testvoid SampleClass.method04()SampleClass()SampleClass(int)    456void SampleClass.method05(String, Number, double)    baz    11    2.718281828459045