SpringAop实现原理及代理模式详解

/*
 *  接口类
 */
public interface Person {
    void say();
}
 *  接口实现类
public class Man implements Person {
    private String word;
    public Man(String word){
        this.word = word;
    }
    public Man(){
    public void say(){
        System.out.println("Man Can Say " + word);
public class ManJDKProxy implements InvocationHandler {
    /**
     * 需要的代理对象
     */
    private Object o;
    public Object bind(Object o){
        this.o = o;
        return Proxy.newProxyInstance(o.getClass().getClassLoader(), o.getClass().getInterfaces(), this);
    @Override
    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        System.out.println("JDK Proxy Design");
        return method.invoke(o, args);
/**
 * JDK动态代理
public class ProxyDesign_2 {
    public static void main(String[] args) {
        Man man = new Man("Hello");
        Person p = (Person)new ManJDKProxy().bind(man);
        p.say();

/*
 *  接口类
 */
public interface Person {
    void say();
}
 *  接口实现类
public class Man implements Person {
    private String word;
    public Man(String word){
        this.word = word;
    }
    public Man(){
    public void say(){
        System.out.println("Man Can Say " + word);
public class ManCGLIBProxy {
    public Object bind(Object target){
        Enhancer enhancer = new Enhancer();
        enhancer.setSuperclass(target.getClass());
        enhancer.setCallback(new MethodInterceptor() {
            @Override
            public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
                System.out.println("CGLIB Proxy Design");
                return method.invoke(target, objects);
            }
        });
        return enhancer.create();
/**
 * CGLIB动态代理
public class ProxyDesign_3 {
    public static void main(String[] args) {
        Man man = new Man("Hello");
        Person p = (Person)new ManCGLIBProxy().bind(man);
        p.say();

<!-- aop:config用来在xml中配置切面，指定proxy-target-class="true" -->
<aop:config proxy-target-class="true">
	<!-- AOP相关配置 -->
</aop:config>

<!-- 将proxy-target-class配置设置为true -->
<aop:aspectj-autoproxy proxy-target-class="true"/>

添加@EnableAspectJAutoProxy(proxyTargetClass = true)