DefaultAdvisorAutoProxyCreator這個(gè)類功能更為強(qiáng)大，這個(gè)類的奇妙之處是他實(shí)現(xiàn)了BeanProcessor接口,當(dāng)ApplicationContext讀如所有的Bean配置信息后，這個(gè)類將掃描上下文，尋找所有的Advistor(一個(gè)Advisor是一個(gè)切入點(diǎn)和一個(gè)通知的組成)，將這些Advisor應(yīng)用到所有符合切入點(diǎn)的Bean中
業(yè)務(wù)接口：
?
package
?StaticAdvisorTest;
public
?
interface
?Shopping?
{
??
public
?String?buySomething(String?type);
??
public
?String?buyAnything(String?type);
??
public
?String?sellSomething(String?type);
??
public
?String?sellAnything(String?type);
}
?
業(yè)務(wù)實(shí)現(xiàn)類：
?
package
?AutoProxyTwo;
public
?
class
?ShoppingImplA?
implements
?Shopping?
{
????
private
?Customer?customer;
????
public
?Customer?getCustomer()?
{
????
????????
return
?customer;
????}
????
public
?
void
?setCustomer(Customer?customer)?
{
????????
this
.customer?
=
?customer;
????}
????
public
?String?buySomething(String?type)?
{
????????System.out.println(
this
.getCustomer().getName()
+
"
?bye?
"
+
type
+
"
?success
"
);
????????
return
?
null
;
????}
????
????
public
?String?buyAnything(String?type)?
{
???????System.out.println(
this
.getCustomer().getName()
+
"
?bye?
"
+
type
+
"
?success
"
);
???????
return
?
null
;
?????}
????
public
?String?sellAnything(String?type)?
{
????????System.out.println(
this
.getCustomer().getName()
+
"
?sell?
"
+
type
+
"
?success
"
);
????????
return
?
null
;
????}
????
public
?String?sellSomething(String?type)?
{
?????????System.out.println(
this
.getCustomer().getName()
+
"
?sell?
"
+
type
+
"
?success
"
);
???????????
return
?
null
;
????}
}
package
?AutoProxyTwo;
public
?
class
?ShoppingImplB?
implements
?Shopping?
{
????
private
?Customer?customer;
????
public
?Customer?getCustomer()?
{
????????
return
?customer;
????}
????
public
?
void
?setCustomer(Customer?customer)?
{
????????
this
.customer?
=
?customer;
????}
????
public
?String?buySomething(String?type)?
{
????????System.out.println(
this
.getCustomer().getName()
+
"
?bye?
"
+
type
+
"
?success
"
);
????????
return
?
null
;
????}
????
????
public
?String?buyAnything(String?type)?
{
???????System.out.println(
this
.getCustomer().getName()
+
"
?bye?
"
+
type
+
"
?success
"
);
???????
return
?
null
;
?????}
????
public
?String?sellAnything(String?type)?
{
????????System.out.println(
this
.getCustomer().getName()
+
"
?sell?
"
+
type
+
"
?success
"
);
????????
return
?
null
;
????}
????
public
?String?sellSomething(String?type)?
{
?????????System.out.println(
this
.getCustomer().getName()
+
"
?sell?
"
+
type
+
"
?success
"
);
???????????
return
?
null
;
????}
}
?
?通知：
?
package
?AutoProxyTwo;
import
?java.lang.reflect.Method;
import
?org.springframework.aop.MethodBeforeAdvice;
//
前置通知
public
?
class
?WelcomeAdvice?
implements
?MethodBeforeAdvice?
{
????
public
?
void
?before(Method?method,?Object[]?args,?Object?obj)
????????????
throws
?Throwable?
{
????????
????????System.out.println(
"
Hello?welcome?to?bye?
"
);
????}
}
?
配置文件：
我們配置一個(gè)advisor，方法和在我的blog關(guān)于靜態(tài)切入點(diǎn)的用正則表達(dá)式配置切入點(diǎn)相同，這里匹配的是業(yè)務(wù)實(shí)現(xiàn)類中所有型如：***sell***的方法
buyBean和sellBean是最為普通的IOC配置
重點(diǎn)在autoProxyCreator中，我們只需配置一個(gè)id和class,spring會(huì)自動(dòng)幫我們解析advisor,并將通知進(jìn)行切入
<?
xml?version="1.0"?encoding="UTF-8"
?>
<!
DOCTYPE?beans?PUBLIC?"-//SPRING//DTD?BEAN//EN"?"http://www.springframework.org/dtd/spring-beans.dtd"?
>
<
beans
>
?
<
bean?
id
="WelcomeAdvice"
?class
="AutoProxyTwo.WelcomeAdvice"
>
?
</
bean
>
?
?
<!--
?自動(dòng)代理所有的advisor?
-->
?
<
bean?
id
="autoProxyCreator"
?class
="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"
>
?
</
bean
>
???
???
???
<
bean?
id
="advisor"
?class
="org.springframework.aop.support.RegexpMethodPointcutAdvisor"
>
?????
<
property?
name
="pattern"
>
???????
<
value
>
.*sell.+
</
value
>
??
<!--
?業(yè)務(wù)實(shí)現(xiàn)方法名匹配?
-->
?????
</
property
>
?????
<
property?
name
="advice"
>
???????
<
ref?
bean
="WelcomeAdvice"
/>
?????
</
property
>
???
</
bean
>
???
???
??
<
bean?
id
="buyBean"
?class
="AutoProxyTwo.ShoppingImplA"
>
????
<
property?
name
="customer"
>
??????
<
ref?
bean
="customer"
/>
????
</
property
>
???
</
bean
>
??
<
bean?
id
="sellBean"
?class
="AutoProxyTwo.ShoppingImplB"
>
????
<
property?
name
="customer"
>
??????
<
ref?
bean
="customer"
/>
????
</
property
>
???
</
bean
>
<
bean?
id
="customer"
?class
="AutoProxyTwo.Customer"
>
???
<
constructor-arg?
index
="0"
>
?????
<
value
>
gaoxiang
</
value
>
???
</
constructor-arg
>
????
<
constructor-arg?
index
="1"
>
?????
<
value
>
26
</
value
>
???
</
constructor-arg
>
?
</
bean
>
</
beans
>
?
測(cè)試程序：
需要注意的是，和BeanNameAutoProxyCreator相同，我們需要用ApplicationContext獲得Bean
package
?AutoProxyTwo;
import
?java.io.File;
import
?org.springframework.beans.factory.BeanFactory;
import
?org.springframework.beans.factory.xml.XmlBeanFactory;
import
?org.springframework.context.ApplicationContext;
import
?org.springframework.context.support.FileSystemXmlApplicationContext;
import
?org.springframework.core.io.FileSystemResource;
public
?
class
?TestAdvisor?
{
????
public
?
static
?
void
?main(String[]?args)?
{
????????String?filePath
=
System.getProperty(
"
user.dir
"
)
+
File.separator
+
"
AutoProxyTwo
"
+
File.separator
+
"
hello.xml
"
;
????????
????????BeanFactory?factory
=
new
?XmlBeanFactory(
new
?FileSystemResource(filePath));
????????ApplicationContext?ctx
=
new
?FileSystemXmlApplicationContext(filePath);
????????Shopping?shoppingA
=
null
;
????????Shopping?shoppingB
=
null
使用DefaultAdvisorAutoProxyCreator實(shí)現(xiàn)spring的自動(dòng)代理
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