Spring Source Learning "Preparation" cglib Dynamic Proxy Example

One: the principal person

1  Packagecom.yeepay.porxy.cglib.test;2 3 ImportJava.util.HashMap;4 ImportJava.util.Map;5 6 /**7 * Target class, (delegate Class)8  * @authorShangxiaofei9  *Ten  */ One  Public classPaymentserver { A  -      PublicMap<string, string>Paymoney (String name,integer money) { -System.out.println ("Paymentserver.paymoney () Pay =========> name" "+name+" ", money=" "+money+" ""); theMap<string, string> map=NewHashmap<string, string>(); -Map.put ("Result", "payment has been completed"); -         returnmap; -     } +}

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II: Enhancer (proxy Class)

1  Packagecom.yeepay.porxy.cglib.test;2 3 ImportJava.lang.reflect.Method;4 5 ImportNet.sf.cglib.proxy.MethodInterceptor;6 ImportNet.sf.cglib.proxy.MethodProxy;7 /**8 * Enhanced Class9  * @authorShangxiaofeiTen  * One  */ A  Public classPoxyforserviceImplementsmethodinterceptor{ -  - @Override the      PublicObject Intercept (Object arg0, Method arg1, object[] arg2,methodproxy arg3)throwsThrowable { -           //code for enhanced functionality -System.out.println ("poxyforservice.intercept (before method execution ========> sending messages to statistics)"); -         if(arg2!=NULL&&arg2.length>0){ +              for(inti=0;i<arg2.length;i++){ -System.out.println ("poxyforservice.intercept () sent parameter contents ====>" +arg2[i]); +             } A         } at          -          -         //Execution Method Content -Object object=Arg3.invokesuper (arg0, arg2); -          -          inSystem.out.println ("poxyforservice.intercept (execution =======> calculation time after method execution)"); -         returnobject; to     } +      -      the  *}

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Third: the creation of agents of the factory class

1  Packagecom.yeepay.porxy.cglib.test;2 3 ImportNet.sf.cglib.proxy.Enhancer;4 5 /**6 * Agent Implementation factory class7  * @authorShangxiaofei8  *9  */Ten  Public classPoxyfactory { One       Public Staticpaymentserver Getpaymentserver () { A          //Cglib Core class, generating proxy objects -Enhancer enhancer=Newenhancer (); -          //class object for a delegate class that needs to be proxied into a core class object theEnhancer.setsuperclass (Paymentserver.class); -          //class object that is put in the enhanced function for the core class object -Enhancer.setcallback (NewPoxyforservice ()); -          //gets the proxy object for the delegate class from the core class object +Object object=enhancer.create (); -          +         return(Paymentserver) object; A      } at}

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Four: Test class

1  Packagecom.yeepay.porxy.cglib.test;2 3 ImportJava.util.Map;4 /**5 * Test Class6  * @authorShangxiaofei7  *8  */9  Public classTestController {Ten  One     PrivatePaymentserver paymentserver=poxyfactory.getpaymentserver (); A      -      Public voidpayment () { -System.out.println ("Testcontroller.payment () Start"); theMap<string, string> Map=paymentserver.paymoney ("Monster Lake", 100); -System.out.println ("Testcontroller.payment () End ===>" +map.get ("result")); -     } -      +      -     /** + * testcontroller.payment () Start A * Poxyforservice.intercept (Method execution before execution ========> send messages to statistics) at * poxyforservice.intercept () send the parameter content ====> Monster Lake - * poxyforservice.intercept () send the parameter content ====>100 - * Paymentserver.paymoney () Pay =========> name "Monster Lake", money= "100" - * poxyforservice.intercept (Execution of =======> calculation time after method execution) - * Testcontroller.payment () End of ===> has been completed paying -      * @paramargs in      */ -      Public Static voidMain (string[] args) { toTestController testcontroller=NewTestController (); + testcontroller.payment (); -     } the}

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Spring Source Learning "Preparation" cglib Dynamic Proxy Example