com.yuyenews.aop.proxy.CglibProxy Maven / Gradle / Ivy
package com.yuyenews.aop.proxy;
import java.lang.reflect.Method;
import java.util.Map;
import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;
/**
* 代理类
* @author yuye
*
*/
public class CglibProxy implements MethodInterceptor {
private Enhancer enhancer;
private Class c;
private Map list;
/**
* 获取代理对象
* @param clazz bean的class
* @param cl aop类的class
* @return
*/
public Object getProxy(Class clazz,Class cl,Map list) {
this.c = cl;
this.list = list;
enhancer = new Enhancer();
// 设置需要创建子类的类
enhancer.setSuperclass(clazz);
enhancer.setCallback(this);
// 通过字节码技术动态创建子类实例
return enhancer.create();
}
/**
* 绑定代理
*/
@Override
public Object intercept(Object o, Method method, Object[] args, MethodProxy methodProxy) throws Throwable {
Boolean isProxy = false;
Object obj = null;
String str = list.get(method.getName());
if(str != null && str.equals("yes")){
isProxy = true;
obj = c.getDeclaredConstructor().newInstance();
}
if(isProxy){
Method m2 = c.getDeclaredMethod("startMethod",new Class[] {Object[].class});
m2.invoke(obj,new Object[] {args});
}
Object o1 = null;
try {
o1 = methodProxy.invokeSuper(o, args);
if(isProxy){
Method m3 = c.getDeclaredMethod("endMethod",new Class[] {Object[].class});
m3.invoke(obj,new Object[] {args});
}
} catch (Exception e) {
if(isProxy){
Method m4 = c.getDeclaredMethod("exp");
m4.invoke(obj);
}
}
return o1;
}
}