想試試AOP在spring的web項目上的使用情況,所以想盡快使用idea快速的搭建一個spring的web項目,當然,是maven管理的項目
步驟如下:
1。打開idea 左上角file--->new --->project
2。選擇Maven項目
好了,生成出來是下面這個狗樣子
3.好了,新建web相關目錄
建完把webapp目錄設置成web的根目錄,並且將web生成的web.xml文件放在WEB-INF位置下,往下看,操作就行
完了就是下面的狗樣子
4.完善pom.xml文件
如果你是用的默認的maven本地倉庫,也就是在本地的C:\Users\自己PC的用戶名\.m2下的倉庫的話,就不用更改什么,直接完善pom.xml文件。
如果你使用了自定義的maven倉庫,那需要先設置一下本項目所作用的maven的setting.xml文件。
然后完善pom.xml文件:

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.sxd</groupId> <artifactId>aopExample</artifactId> <version>1.0-SNAPSHOT</version> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>4.1.4.RELEASE</spring.version> <hibernate.version>4.3.8.Final</hibernate.version> <jackson.version>2.5.0</jackson.version> </properties> <dependencies> <!-- junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> <scope>test</scope> </dependency> <!-- 使用SpringMVC需配置 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!-- spring cglib 代理 --> <dependency> <groupId>cglib</groupId> <artifactId>cglib</artifactId> <version>2.2.2</version> </dependency> <!-- 關系型數據庫整合時需配置 如hibernate jpa等 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <!-- hibernate --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>${hibernate.version}</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-ehcache</artifactId> <version>${hibernate.version}</version> </dependency> <!-- 二級緩存ehcache --> <dependency> <groupId>net.sf.ehcache</groupId> <artifactId>ehcache</artifactId> <version>2.9.0</version> </dependency> <!-- log4j --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- mysql連接 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> <!-- c3p0數據源 --> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5-pre10</version> </dependency> <!-- json --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.3</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> <!-- aop --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.4</version> </dependency> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>3.0-alpha-1</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> </dependencies> </project>
5.接下來,是各個配置文件的配置,之前有在myecplise上配置過,配置是一樣的
可以參考:【http://www.cnblogs.com/sxdcgaq8080/p/5606827.html】
再resources目錄下,分別創建如下文件:
config.properties

#jdbc c3p0 config jdbc.driver = com.mysql.jdbc.Driver jdbc.url = jdbc:mysql://localhost:3306/orderdiscount?useUnicode=true&characterEncoding=utf-8 jdbc.username = root jdbc.password = root #hibernate config hibernate.dialect = org.hibernate.dialect.MySQLDialect hibernate.show_sql = true hibernate.format_sql = false hibernate.hbm2ddl.auto = update hibernate.cache.use_second_level_cache = true hibernate.cache.use_query_cache = true hibernate.cache.region.factory_class = org.hibernate.cache.ehcache.EhCacheRegionFactory hibernate.cache.provider_configuration_file_resource_path =ehcache.xml
log4j.properties

### set log levels ###
log4j.rootLogger = INFO , C , D , E
### console ###
log4j.appender.C = org.apache.log4j.ConsoleAppender
log4j.appender.C.Target = System.out
log4j.appender.C.layout = org.apache.log4j.PatternLayout
log4j.appender.C.layout.ConversionPattern = [aopExample][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n
### log file ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ../logs/springmvc_hibernate_demo.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = INFO
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = [aopExample][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n
### exception ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File = ../logs/aopExample_error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern =[aopExample][%p] [%-d{yyyy-MM-dd HH\:mm\:ss}] %C.%M(%L) | %m%n
spring-hibernate.xml

<?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:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd "> <!-- 自動掃描@Controller注入為bean --> <context:property-placeholder location="classpath:config.properties"/> <!-- 配置數據源 c3p0 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <property name="driverClass" value="${jdbc.driver}" /> <property name="jdbcUrl" value="${jdbc.url}" /> <property name="user" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 請求超時時間 --> <property name="checkoutTimeout" value="30000" /> <!-- 每60秒檢查所有連接池中的空閑連接。默認值: 0,不檢查 --> <property name="idleConnectionTestPeriod" value="30" /> <!-- 連接數據庫連接池最大空閑時間 --> <property name="maxIdleTime" value="30" /> <!-- 連接池初始化連接數 --> <property name="initialPoolSize" value="5" /> <property name="minPoolSize" value="5" /> <property name="maxPoolSize" value="20" /> <!--當連接池中的連接耗盡的時候c3p0一次同時獲取的連接數。默認值: 3 --> <property name="acquireIncrement" value="5" /> </bean> <!-- 配置hibernate的SessionFactory --> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <!-- 注入數據源 相關信息看源碼 --> <property name="dataSource" ref="dataSource" /> <!-- hibernate配置信息 --> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">${hibernate.dialect}</prop> <prop key="hibernate.show_sql">${hibernate.show_sql}</prop> <prop key="hibernate.format_sql">${hibernate.format_sql}</prop> <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop> <!-- 開啟二級緩存 ehcache --> <prop key="hibernate.cache.use_second_level_cache">${hibernate.cache.use_second_level_cache}</prop> <prop key="hibernate.cache.use_query_cache">${hibernate.cache.use_query_cache}</prop> <prop key="hibernate.cache.region.factory_class">${hibernate.cache.region.factory_class}</prop> <prop key="hibernate.cache.provider_configuration_file_resource_path">${hibernate.cache.provider_configuration_file_resource_path} </prop> </props> </property> <!-- 掃描hibernate注解配置的entity --> <property name="packagesToScan" value="com.sxd.entity" /> </bean> <!-- 配置事務管理器 --> <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory" /> </bean> </beans>
ehcache.xml

<?xml version="1.0" encoding="UTF-8"?> <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../config/ehcache.xsd"> <diskStore path="D:/ehcache" /> <!-- DefaultCache setting. --> <defaultCache maxElementsInMemory="1000" eternal="false" timeToIdleSeconds="120" timeToLiveSeconds="120" maxElementsOnDisk="1000000" overflowToDisk="true" memoryStoreEvictionPolicy="LRU"> </defaultCache> <!-- Special objects setting. --> <cache name="org.andy.work.entity.AcctUser" maxElementsInMemory="2" memoryStoreEvictionPolicy="LRU" eternal="true" diskPersistent="false" overflowToDisk="false" maxElementsOnDisk="1000000" /> </ehcache>
spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd"> <!-- 自動掃描@Controller注入為bean --> <context:component-scan base-package="com.sxd" > </context:component-scan> <!-- 標明注解事務 --> <tx:annotation-driven transaction-manager="transactionManager" /> <!-- 以下為SpringMVC配置 --> <mvc:annotation-driven> <!-- 返回json數據,@response使用 --> <mvc:message-converters register-defaults="true"> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> <value>application/json;charset=UTF-8</value> </list> </property> </bean> </mvc:message-converters> </mvc:annotation-driven> <!-- 對模型視圖名稱的解析,即在模型視圖名稱添加前后綴 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/views" /> <property name="suffix" value=".jsp" /> </bean> <!--Spring aop事務管理 <aop:config proxy-target-class="true"> 配置切入點 指定這個aop:pointcut去引用上面規定的advice,也就是說規定下面的這個expression指定的路徑下的service.impl下的所有的方法,都按照上面advice中的規定去執行,碰上什么操作,事務就是什么類型的,這就是事務管理器的好處了 解釋一下,為什么這個要指定在service層:因為在同一個事務中,可能要對多張表進行多個不同的操作,才是一個完整的邏輯,例如淘寶上買東西,你轉賬之后你的錢減少了,對方的錢應該增加了,這兩個操作在一起才是一個完整的操作,而如果這兩個操作不在一個事務中,也就是如果將事務的操作指定在Dao層【MVC的設計模式:Dao層就是對數據庫進行最簡單的增刪改查操作,而service層是進行邏輯處理的,一個完整的邏輯處理就要涉及到多次操作】事務操作失敗,發生回滾,那你的帳減少了,對方的帳並沒有增加,這樣就不美麗的,因此,將事務的管理,指定在了service層 <aop:pointcut id="transactionPointcut" expression="execution(* com.it.service..*Impl.*(..))" />expression中表達式所指意思: 所有的文件下的 com.it.service開頭的包,以Impl結尾的類下的所有的方法,都執行上面advice的規定 指定在txAdvice切入點應用txAdvice事務增強處理 <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" /> </aop:config> --> </beans>
6.完善java中的包controller,並建立一個頁面跳轉MainController.java
MainController.java

package com.sxd.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; @Controller public class MainController { @ResponseBody @RequestMapping("do") public String doSomething(){ return "Just for what"; } }
7.最惡心的一步,也是不同與ecplise的步驟,為本項目部署一個Tomcat
選上自己的項目即可
8.最后一步,完善web.xml文件

<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <!-- web容器是web項目的大腦 --> <!-- 在web.xml中,執行順序是:1.先執行listener 2。再執行filter 3.最后執行servlet 這就是執行順序 就像spring-hibernate.xml文件是在執行Listener的時候加載的,那注意這幾個配置文件在web.xml中的加載順序,因為資源文件是在配置文件【xml文件】中加載的,肯定是先加載的資源文件【properties文件】,才能在配置文件中調用資源文件中的變量的值使用 --> <display-name>aopExample</display-name> <!-- web容器,首先需要引入spring,讓spring管理各個框架,並將其注入為bean --> <!-- 這個相當於定一個 變量在web.xml中,在下面的listener org.springframework.web.context.ContextLoaderListener中,加載這個spring-hibernate.xml文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-hibernate.xml</param-value> </context-param> <!-- 配置控制層的filter信息 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- openSessionInView配置 作用是延遲session關閉到view層 --> <filter> <filter-name>openSessionInViewFilter</filter-name> <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class> <init-param> <param-name>singleSession</param-name> <param-value>true</param-value> </init-param> </filter> <!-- 監聽servletContext,啟動contextConfigLocation中的spring配置信息 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 防止spring內存溢出監聽器 可用可不用--> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <!-- 類似與servlet 需要在web.xml中都需要配置一樣,spring的思想是讓這些servlet【controller也是servlet】繼承了一個基礎的servlet,那就只需在web.xml中配置一個servlet即可。 --> <!-- 這個servlet和下面的servlet-mapping相配合使用,注明了所有的以.htmls結尾的請求都被截取到,去到servlet中去找相對應的方法 進行處理 --> <servlet> <description>spring mvc servlet</description> <servlet-name>rest</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <!-- 此處配置的是SpringMVC的配置文件 --> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 配置了springmvc攔截的url為以.hmls結尾的請求 --> <servlet-mapping> <servlet-name>rest</servlet-name> <url-pattern>*.htmls</url-pattern> </servlet-mapping> <filter-mapping> <filter-name>openSessionInViewFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 配置session超時時間,單位分鍾 --> <session-config> <session-timeout>30</session-timeout> </session-config> <!-- 歡迎界面 默認的項目訪問界面 --> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> </web-app>
9.最后,就可以啟動了,啟動完成之后,瀏覽器訪問地址:
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好啦!!!