loginterceptor.java

这个是j2eejava web 编程精要十五讲的全部源码。对学习java web编程的人来说是很能得的资料

package test;

import java.util.logging.Level;
import java.util.logging.Logger;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

public class LogInterceptor implements MethodInterceptor { 
    private Logger logger = 
            Logger.getLogger(this.getClass().getName()); 
    
   public Object invoke(MethodInvocation methodInvocation) 
                                           throws Throwable { 
        logger.log(Level.INFO, 
           "method starts..." + methodInvocation.getMethod()); 
        
        Object result = null;
        
       try { 
          result = methodInvocation.proceed(); 
        } catch(Exception e) {e.printStackTrace();}
        
        finally { 
            logger.log(Level.INFO, 
               "method ends..." + 
               methodInvocation.getMethod() + "\n"); 
        }
        
        return result; 
   } 
}