taste jdk dynamic proxy and cglib proxy

pom.xml

@@ -16,6 +16,14 @@
         <argLine>-Dfile.encoding=UTF-8</argLine>
     </properties>
 
+    <dependencies>
+        <dependency>
+            <groupId>cglib</groupId>
+            <artifactId>cglib-nodep</artifactId>
+            <version>3.1</version>
+        </dependency>
+    </dependencies>
+
     <build>
         <plugins>
             <plugin>

src/main/java/proxy/cglib/LogProxy.java

@@ -0,0 +1,27 @@
+package proxy.cglib;
+
+import net.sf.cglib.proxy.MethodInterceptor;
+import net.sf.cglib.proxy.MethodProxy;
+
+import java.lang.reflect.Method;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public class LogProxy implements MethodInterceptor{
+
+    private Object target;
+
+    public LogProxy(Object target) {
+        this.target = target;
+    }
+
+    @Override
+    public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
+        Object result = null;
+        System.out.println("++++++++++++++++++++++++++Invoke start: " + method.getName());
+        result = method.invoke(target, objects);
+        System.out.println("++++++++++++++++++++++++++END");
+        return result;
+    }
+}

src/main/java/proxy/cglib/ProxyFactory.java

@@ -0,0 +1,17 @@
+package proxy.cglib;
+
+import net.sf.cglib.proxy.Enhancer;
+import net.sf.cglib.proxy.MethodInterceptor;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public class ProxyFactory {
+
+    public static <T> T newProxy(T t, MethodInterceptor proxy) {
+        Enhancer enhancer = new Enhancer();
+        enhancer.setSuperclass(t.getClass());
+        enhancer.setCallback(proxy);
+        return (T) enhancer.create();
+    }
+}

src/main/java/proxy/cglib/TestProxy.java

@@ -0,0 +1,17 @@
+package proxy.cglib;
+
+import net.sf.cglib.proxy.MethodInterceptor;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public class TestProxy {
+
+    public static void main(String[] args) {
+        UserService userService = new UserService();
+        MethodInterceptor handler = new LogProxy(userService);
+        UserService proxy = ProxyFactory.newProxy(userService, handler);
+        proxy.add("jack");
+        proxy.delete("jack");
+    }
+}

src/main/java/proxy/cglib/UserService.java

@@ -0,0 +1,15 @@
+package proxy.cglib;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public class UserService {
+
+    public void add(String username) {
+        System.out.println("User:" + username + " added.");
+    }
+
+    public void delete(String username) {
+        System.out.println("User:" + username + " deleted.");
+    }
+}

src/main/java/proxy/dynamic/LogProxy.java

@@ -0,0 +1,25 @@
+package proxy.dynamic;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public class LogProxy implements InvocationHandler {
+
+    private Object target;
+
+    public LogProxy(Object target) {
+        this.target = target;
+    }
+
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+        Object result = null;
+        System.out.println("++++++++++++++++++++++++++Invoke start: " + method.getName());
+        result = method.invoke(target, args);
+        System.out.println("++++++++++++++++++++++++++END");
+        return result;
+    }
+}

src/main/java/proxy/dynamic/ProxyFactory.java

@@ -0,0 +1,14 @@
+package proxy.dynamic;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Proxy;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public class ProxyFactory {
+
+    public static <T> T newProxy(T t, InvocationHandler proxy) {
+        return (T) Proxy.newProxyInstance(t.getClass().getClassLoader(), t.getClass().getInterfaces(), proxy);
+    }
+}

src/main/java/proxy/dynamic/TestProxy.java

@@ -0,0 +1,17 @@
+package proxy.dynamic;
+
+import java.lang.reflect.InvocationHandler;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public class TestProxy {
+
+    public static void main(String[] args) {
+        UserServiceImpl target = new UserServiceImpl();
+        InvocationHandler proxy = new LogProxy(target);
+        UserService userService = ProxyFactory.newProxy(target, proxy);
+        userService.add("jack");
+        userService.delete("jack");
+    }
+}

src/main/java/proxy/dynamic/UserService.java

@@ -0,0 +1,11 @@
+package proxy.dynamic;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public interface UserService {
+
+    public void add(String username);
+
+    public void delete(String username);
+}

src/main/java/proxy/dynamic/UserServiceImpl.java

@@ -0,0 +1,17 @@
+package proxy.dynamic;
+
+/**
+ * Created by Liuxey on 2015/10/27.
+ */
+public class UserServiceImpl implements UserService {
+
+    @Override
+    public void add(String username) {
+        System.out.println("User:" + username + " added.");
+    }
+
+    @Override
+    public void delete(String username) {
+        System.out.println("User:" + username + " deleted.");
+    }
+}