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目录默认代理行为修改代理行为spring aop可通过参数proxyTargetProxy控制创建代理的方式 proxyTargetProxy=true:强制使用cglib代理pro
spring aop可通过参数proxyTargetProxy控制创建代理的方式
proxyTargetProxy=true:强制使用cglib代理
proxyTargetProxy=false:目标实现类实现了接口使用jdk,没有实现接口则使用cglib
springboot 默认代理行为
HelloService
public interface HelloService {
String hello();
}
HelloServiceImpl
@Service
public class HelloServiceImpl implements HelloService {
@Override
public String hello() {
return "hello";
}
}
HelloService2Impl
@Service
public class HelloService2Impl {
public String hello(){
return "hello2";
}
}
CustomAspect
@Aspect
@Component
public class CustomAspect {
@Pointcut("execution(* *.hello(..))")
public void fun(){
}
@Before("fun()")
public void before(JoinPoint joinPoint){
System.out.print("before ==> ");
MethodSignature signature = (MethodSignature) joinPoint.getSignature();
Method method = signature.getMethod();
System.out.println(method.getDeclarinGClass().getName()+"."+method.getName());
}
HelloController
@RestController
public class HelloController {
@Resource
private HelloService helloService;
private HelloService2Impl helloService2;
@RequestMapping("/hello")
public String hello(){
System.out.println(helloService.getClass().getName());
System.out.println(helloService2.getClass().getName());
return "success";
}
}
localhost:8080/hello,控制台输出:
2022-04-23 22:32:19.334 INFO 1224 --- [ main] w.s.c.ServletWEBServerApplicationContext : Root WebApplicationContext: initialization completed in 737 ms
2022-04-23 22:32:19.638 INFO 1224 --- [ main] o.s.b.w.embedded.Tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (Http) with context path ''
2022-04-23 22:32:19.646 INFO 1224 --- [ main] com.example.demo.DemoApplication : Started DemoApplication in 1.351 seconds (JVM running for 1.774)
2022-04-23 22:32:23.915 INFO 1224 --- [NIO-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2022-04-23 22:32:23.915 INFO 1224 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2022-04-23 22:32:23.916 INFO 1224 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 1 ms
before ==> com.example.demo.controller.HelloController.hello
# 无论是否实现接口都使用cglib创建代理
com.example.demo.service.impl.HelloServiceImpl$$EnhancerBySpringCGLIB$$b6dcbbe7
com.example.demo.service.impl.HelloService2Impl$$EnhancerBySpringCGLIB$$589ac389
application.properties
spring.aop.proxy-target-class=false
localhost:8080/hello,控制台输出:
2022-04-23 22:40:14.300 INFO 1237 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 935 ms
2022-04-23 22:40:14.639 INFO 1237 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2022-04-23 22:40:14.647 INFO 1237 --- [ main] com.example.demo.DemoApplication : Started DemoApplication in 1.594 seconds (JVM running for 2.17)
2022-04-23 22:40:17.156 INFO 1237 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2022-04-23 22:40:17.156 INFO 1237 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2022-04-23 22:40:17.157 INFO 1237 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 1 ms
before ==> com.example.demo.controller.HelloController.hello
# helloServiceImpl使用jdk创建代理对象
com.sun.proxy.$Proxy56
# helloService2Impl使用cglib创建代理对象
com.example.demo.service.impl.HelloService2Impl$$EnhancerBySpringCGLIB$$f6915580
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