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Java Proxy¶¯Ì¬´úÀí

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package example;
 
public interface Basic {
    public void hello();
}
 
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package example;
 
public class BasicService implements Basic {
    public void hello() {
        Sysytem.out.println("Hello, world");
    }
}
 
ʵÏÖÁËInvocationHandler½Ó¿ÚµÄÀà
package example;
 
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.logging.Level;
import java.util.logging.Logger;
 
public class LogHandler implements InvocationHandler {
    private Logger logger = Logger.getLogger(this.getClass().getName());
    private Object delegate;
 
    public Object bind(Object delegate) {
        this.delegate = delegate;
        return Proxy.newProxyInstance(delegate.getClass().getClassLoader(), delegate.getClass().getInterfaces(), this);
        }
 
    @Override
    public Object invoke(Object proxy, Method method, Object[] args)
            throws Throwable {
        Object result = null;
 
        try {
            log("method starts..." + method);
            result = method.invoke(delegate, args);
            log("method ends..." + method);
        } catch (Exception e) {
            log(e.toString());
        }
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package test;
import java.lang.reflect.Method;
public class InvokeTest {
  /**
   *
   * main ·½·¨
   * @param args
   * void
   */
  public static void main(String[] args) {
    try {
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