Spring Proxy mode

1. Static Proxy

Abstract topic: Subject

Public interface Subject {public    String Add ();}

Target object: Resubject

public class Resubject implements Subject {public    String Add () {        System.out.println ("ok!");        Return "";    }}

Proxy object: Psubject

public class Psubject implements Subject {    private Subject resubject;    Public Subject Getresubject () {        return resubject;    }    public void Setresubject (Subject resubject) {        this.resubject = resubject;    }    Public String Add () {        System.out.println ("Open! ");        return Resubject.add ();    }}

One side

Static proxy    @Test public    void test12 () {        Subject subject=new resubject ();        Psubject psubject=new psubject ();        Psubject.setresubject (subject);        Psubject.add ();    }

2. Dynamic Agent

Interface

Public interface Iuserdao {public    String Add ();    Public String edit ();}

Class

public class Userdaoimpl implements iuserdao{public    String Add () {        System.out.println ("add");        return "Add";    }    Public String edit () {        System.out.println ("edit");        Return "edit";}    }

One side

Dynamic proxy    @Test public    void test13 () {       final Iuserdao dao=new Userdaoimpl ();       Iuserdao pp= (Iuserdao) proxy.newproxyinstance (Dao.getclass (). getClassLoader (), Dao.getclass (). GetInterfaces (), New Invocationhandler () {Public           object Invoke (Object proxy, Method method, object[] args) throws Throwable {               Syste M.out.println ("open");               Method.invoke (Dao,args);               return null;           }       });       Pp.add ();       Pp.edit ();    }

3.cglib Dynamic Agent

public class UserService {public    void Delete () {        System.out.println ("OK");}    }

One side (two ways)

/*cglib Dynamic Agent *    /@Test public    void test14 () {        final userservice servive=new userservice ();        Enhancer enhancer=new Enhancer ();        Enhancer.setsuperclass (Servive.getclass ());        Enhancer.setcallback (New Methodinterceptor () {Public            object intercept (Object o, Method, object[] objects, Methodproxy methodproxy) throws Throwable {                System.out.println ("open");                Methodproxy.invoke (servive,objects);                return null;            }        });       /* Enhancer.setcallback (New Org.springframework.cglib.proxy.InvocationHandler () {Public            object invoke (Object o , method, object[] objects) throws Throwable {                System.out.println ("open");                Method.invoke (servive,objects);                return null;            }        }); */        UserService AA = (userservice) enhancer.create ();        Aa.delete ();    }

Spring Proxy mode