SpringAOP 全註解配置

和xml配置相比,用@註解配置**更加簡單,但是需要先理解xml配置

druid.properties

jdbc.driverclassname=com.mysql.jdbc.driver

jdbc.url=jdbc:mysql:
//localhost:
3306
/db2
jdbc.username=root
jdbc.password=root

@configuration

@componentscan
("com.itheima"
)@propertysource
("classpath:druid.properties"
)@enableaspectjautoproxy
//開啟自動**
public
class
springconfig")
private string driver;
@value
("$"
)private string url;
@value
("$"
)private string username;
@value
("$"
)private string password;
@bean
("datasource"
)//bean註解的作用是將方法的返回值儲存在spring容器中
public datasource createdatasource()
@bean
("jdbctemplate"
)//@qualifier會按照指定的名稱進行引數注入
public jdbctemplate getjdbctemplate
(@qualifier
("datasource"
) datasource datasource)
}

@repository

("userdao"
)public
class
userdaoimpl
implements
userdao
@override
public
void
add(user user)
throws sqlexception 
@override
public
void
update
(user user)
throws sqlexception 
@override
public
void
delete
(integer id)
throws sqlexception 
@override
public user findbyid
(integer id)
throws sqlexception 
@override
public list
findall()
throws sqlexception 
}

@service

("userservice"
)public
class
userserviceimpl
implements
userservice
@override
public
void
add(user user)
throws sqlexception 
@override
public
void
update
(user user)
throws sqlexception 
@override
public
void
delete
(integer id)
throws sqlexception 
@override
public user findbyid
(integer id)
throws sqlexception 
@override
public list
findall()
throws sqlexception 
}

@component

@aspect
public
class
logger
/*    @before("getaa()")
public void before()
@afterreturning("getaa()")
public void afterreturning()
@afterthrowing("getaa()")
public void afterthrowing()
@after("getaa()")
public void after()
*///  增強方法型別                         目標方法
@around
("execution(* com.itheima.service.impl.userserviceimpl.*(..))"
)public object around
(proceedingjoinpoint pjp)
catch
(throwable throwable)
finally
return proceed;
}}

@runwith

(springjunit4classrunner.
class
)@contextconfiguration
(classes = springconfig.
class
)public
class
userservicetest
}

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