java jdk与cglib代理代码实现
github代码: https://github.com/Gefuxing/proxytest.git
动态代理
jdk
public class ProxyTest {
public static void main(String[] args) {
/**
* jdk动态代理
*/
UserService userService = new UserServiceImpl();
InvocationHandler handler = new MyInvocationHandler<UserService>(userService);
UserService proxy= (UserService) Proxy.newProxyInstance(UserService.class.getClassLoader(), new Class[]{UserService.class}, handler);
User userById = proxy.findUserById(1);
System.out.println(userById.toString());
/**
* cglib动态代理
*/
}
}
public class MyInvocationHandler<T> implements InvocationHandler {
private T targe;
public MyInvocationHandler(T targe) {
this.targe = targe;
}
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Object invoke = method.invoke(targe, args);
return invoke;
}
}
cglib
public class MainTest {
public static void main(String[] args) {
Enhancer enhancer = new Enhancer();
enhancer.setSuperclass(UserCglib.class);
enhancer.setCallback(new UserCglbInterceptor());
UserCglib userCglib = (UserCglib) enhancer.create();
String gfx = userCglib.getName("gfx");
Integer num = userCglib.getNum(0);
System.out.println("cglib"+gfx+"-"+num);
}
}
public class UserCglbInterceptor implements MethodInterceptor {
@Override
public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
Object invoke = methodProxy.invokeSuper(o, objects);
System.out.println("cglib代理方法");
return invoke;
}
}