最近想对项目中的所有bean进行一个代理。然后监控bean得方法的使用情况。
- import java.lang.reflect.Proxy;
- import java.util.Map;
- import java.util.concurrent.ConcurrentHashMap;
- import org.springframework.beans.BeansException;
- import org.springframework.beans.factory.config.BeanPostProcessor;
- import com.alibaba.common.logging.Logger;
- import com.alibaba.common.logging.LoggerFactory;
- public class MyBeanPostProcesser implements BeanPostProcessor {
- private Map map = new ConcurrentHashMap(100);
- private static final Logger log = LoggerFactory.getLogger("myBeanPostProcesser");
- public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
- MyProxy proxy = new MyProxy();
- if (beanName.contains("DB")) {
- return bean;
- }
- if (bean.toString().contains("Proxy")) {
- log.info(beanName + "为代理类,不进行再次代理!");
- return bean;
- }
- if (beanName.contains("TransactionTemplate")) {
- log.info(beanName + "为TransactionTemplate类,不进行再次代理!该类为:" + bean);
- return bean;
- }
- if (map.get(beanName) != null) {
- log.info(beanName + "已经代理过,不进行再次代理!");
- return map.get(beanName);
- }
- proxy.setObj(bean);
- proxy.setName(beanName);
- Class[] iterClass = bean.getClass().getInterfaces();
- if (iterClass.length > 0) {
- Object proxyO = Proxy.newProxyInstance(bean.getClass().getClassLoader(), iterClass, proxy);
- map.put(beanName, proxyO);
- return proxyO;
- } else {
- log.info(beanName + "么有接口不进行代理!");
- return bean;
- }
- }
- public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
- return bean;
- }
- }
- import java.lang.reflect.InvocationHandler;
- import java.lang.reflect.Method;
- import com.alibaba.common.logging.Logger;
- import com.alibaba.common.logging.LoggerFactory;
- import sun.reflect.Reflection;
- public class MyProxy implements InvocationHandler {
- private static final Logger log = LoggerFactory.getLogger("myself");
- private Object obj;
- private String name;
- public String getName() {
- return name;
- }
- public void setName(String name) {
- this.name = name;
- }
- public Object getObj() {
- return obj;
- }
- public void setObj(Object obj) {
- this.obj = obj;
- }
- public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
- System.out.println("begin================" + "bean 名称为【" + name + "】方法为【" + method.getName() + "】========="
- + obj.getClass());
- log.error("begin================" + "bean 名称为【" + name + "】方法为【" + method.getName() + "】========="
- + obj.getClass());
- return method.invoke(obj, args);
- }
- public void printDetail(String detail) {
- log.error(detail);
- }
- }