对已有程序进行了aspectj的整合

自从前几天发布了一个版本后，我就开始对ostocy-jshop做一些优化，让代码的耦合性减少。我就找到了aspectj在看了一些资料以后对其进行了整合。

简单的说下步骤和整合的功能代码吧

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1,在eclipse中安装aspectj插件，找到help-=install new software 输入http://download.eclipse.org/tools/ajdt/36/update 这个地址。选择第一个安装即可。

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2，把项目转换到aspectj模式下

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右键项目--configuratie--有一个covert to aspectj?

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3，看下spring的配置文件吧?

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<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="           http://www.springframework.org/schema/beans           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd           http://www.springframework.org/schema/tx           http://www.springframework.org/schema/tx/spring-tx-2.5.xsd          http://www.springframework.org/schema/context           http://www.springframework.org/schema/context/spring-context-2.5.xsd           http://www.springframework.org/schema/aop           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd" default-autowire="byName"><aop:aspectj-autoproxy></aop:aspectj-autoproxy><context:component-scan base-package="com.jshop"></context:component-scan><context:annotation-config /><context:property-placeholder location="classpath*:*.properties" /><bean id="dataSource" value="${jdbc.driver}" /><property name="jdbcUrl" value="${jdbc.url}" /><property name="user" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /><property name="initialPoolSize" value="${pool.initialPoolSize}" /><property name="minPoolSize" value="${pool.minPoolSize}" /><property name="maxPoolSize" value="${pool.maxPoolSize}" /><property name="maxIdleTime" value="${pool.maxIdleTime}" /><property name="acquireIncrement" value="${pool.acquireIncrement}" /><property name="checkoutTimeout" value="${pool.checkoutTimeout}" /><property name="maxIdleTimeExcessConnections" value="${pool.maxIdleTimeExcessConnections}" /></bean><!-- 邮箱服务器配置 --><bean id="javamailsenderimpl" value="${email.host}"></property><property name="defaultEncoding" value="${email.defaultEncoding}"></property><property name="port" value="${email.port}"></property><property name="username" value="${email.username}"></property><property name="password" value="${email.password}"></property><property name="javaMailProperties"><props><prop key="mail.smtp.auth">${email.auth}</prop><prop key="mail.smtp.timeout">${email.timeout}</prop></props></property></bean><bean id="sessionFactory"/></property><property name="mappingDirectoryLocations">         <list>            <value>classpath:com/jshop/entity</value>         </list>       </property><property name="hibernateProperties"><props><prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect                                         </prop><prop key="hibernate.show_sql">true</prop><prop key="hibernate.format_sql">true</prop><prop key="hibernate.cache.use_second_level_cache">true</prop><prop key="hibernate.cache.use_query_cache">false</prop><prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop></props></property></bean> <bean id="transactionManager"/></property></bean><!-- <bean id="transactionInterceptor"ref="transactionManager" /><property name="transactionAttributes"><props><prop key="add*">PROPAGATION_REQUIRED</prop><prop key="del*">PROPAGATION_REQUIRED</prop><prop key="update*">PROPAGATION_REQUIRED</prop><prop key="find*">PROPAGATION_REQUIRED</prop><prop key="*">PROPAGATION_REQUIRED,readOnly</prop></props></property></bean> --><aop:config><aop:advisor pointcut="execution(* com.jshop.action.service.*Service.*(..))" advice-ref="txAdvice"/></aop:config> <tx:advice id="txAdvice" transaction-manager="transactionManager"><tx:attributes><tx:method name="add*" propagation="REQUIRED" />          <tx:method name="delete*" propagation="REQUIRED" />          <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="get*" read-only="true"/><tx:method name="query*" read-only="true"/><tx:method name="find*" read-only="true"/><tx:method name="load*" read-only="true"/><tx:method name="*" rollback-for="Exception"/></tx:attributes></tx:advice> <bean id="hibernateTemplate" /></property></bean> <!-- 配置异步线程执行器 -->  <!-- 为异步线程执行器 进注入  --><bean id="taskExecutor"value="10"></property><!-- 设置最大池子的大小  --> <property name="maxPoolSize" value="30"></property></bean></beans>

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最主要的就是这几行和注意载入的头?

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<aop:aspectj-autoproxy></aop:aspectj-autoproxy><context:component-scan base-package="com.jshop"></context:component-scan><context:annotation-config />

?这里其实就是在设置自动检索所有被标注了@AspectJ的类了

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4，看下aspectj的类吧

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@Aspectpublic class CreateStaticHtmlAspect {private Map<String, Object> map = new HashMap<String, Object>();public Map<String, Object> getMap() {return map;}public void setMap(Map<String, Object> map) {this.map = map;}/** * 在商品增加/修改时更新静态页 * @throws TemplateException  * @throws IOException  */@After("execution(String com.jshop.action.GoodsTNAction.updateGoods())||execution(String com.jshop.action.GoodsTNAction.addGoods())")public void aftergoodsIUCreatestatichtml(JoinPoint joinPoint) throws IOException, TemplateException{GoodsTNAction gtn=(GoodsTNAction) joinPoint.getThis();if(gtn.getBean()!=null){String basepath=gtn.getDataCollectionTAction().getBasePath();String theme=gtn.getDataCollectionTAction().getDefaultTheme();String htmlpath="html/"+theme+"/shop/"+gtn.getBean().getGoodsid()+".html";gtn.getBean().setHtmlPath(htmlpath);//获取默认项目路径map.put(FreeMarkervariable.BASEPATH,basepath);//获取默认主题map.put(FreeMarkervariable.DEFAULTTHEMESIGN, theme);//获取商城基本信息map.put(FreeMarkervariable.JSHOPBASICINFO, gtn.getDataCollectionTAction().findJshopbasicInfo());//获取导航map.put(FreeMarkervariable.SITENAVIGATIONLIST, gtn.getDataCollectionTAction().findSiteNavigation());//获取页脚文章一级分类map.put(FreeMarkervariable.FOOTCATEGORY, gtn.getDataCollectionTAction().findFooterCateogyrT());//获取页脚文章一级分类下得文章map.put(FreeMarkervariable.FOOTERATRICLE, gtn.getDataCollectionTAction().findFooterArticle());//获取商品详细map.put(FreeMarkervariable.GOODSDETAIL, gtn.getBean());//这里获取商品参数和商品类型表中的对比并显示map.put(FreeMarkervariable.GOODSPARAMETERS,gtn.processGoodsparameters(gtn.getBean()));;//这是处理过后的商品参数,用在freemarker模板String htmlPath = gtn.getCreateHtml().createGoodsT(BaseTools.getApplicationthemesig() + "_" + ContentTag.TEMPLATENAMEFORGOODSDETAIL, gtn.getBean().getGoodsid(), map);if (Validate.StrNotNull(htmlPath)) {gtn.getGoodsTService().updateHtmlPath(gtn.getBean().getGoodsid(), htmlPath);}}}}

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至于aspectj的语法不多说了，功能很多，讲起来会更多。这里主要就是如何获取切入点的上下文。也就是我如何获取被我after的方法所在类的所有变量和方法和依赖注入的对象。只要JoinPoint作为参数就行了。然后你想拿什么就拿什么。可以断点自己看看。

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结束，就这样吧。以上代码均来自我写的开源商城程序，希望大家可以来一起学习一起进步。我也是个菜鸟，希望一起进步啊。

地址：https://github.com/sdywcd/ostocy-jshop?

或者?http://code.google.com/p/ostocy-jshop/downloads/list?

欢迎微博求关注?http://weibo.com/sdywcd

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