達(dá)內(nèi)-java視頻spring day通過案例掌握使用注解方式整合

知識點(diǎn)列1注解方式實(shí)現(xiàn)SSH整合通過案例掌握使用注解方式整合2了解Spring*3AOP*4了解并掌握Spring框架結(jié)構(gòu)*5SpringSpringMVC*6作為課后作業(yè)。使用SSH*注 注解方式實(shí)現(xiàn)SSH整合 【案例1】注解方式實(shí)現(xiàn)SSH整合 Spring管理事務(wù)的策略 AOP動(dòng) 【案例2】動(dòng) Spring框架結(jié)構(gòu) SpringMVC 【案例3】SpringMVC ssh2重構(gòu)當(dāng)當(dāng)注意事項(xiàng) SSH整合1SSH整合拷貝spring4spring5請spring4首先我們開啟組件掃描，將bean<beansxmlns="<bean <propertyname="url"<propertyname="username"<propertyname="password"<propertyname="maxActive"<propertyname="initialSize"<beanid="mySessionFactory"<propertyname="dataSource"<property <property<propkey="hibernate.dialect"><prop<prop<beanid="userDao"<beanid="userService"<propertyname="userDao" <bean<tx:adviceid="txAdvice"transaction-<tx:methodname="save*"<tx:methodname="update*"<tx:methodname="delete*"<tx:methodname="find*"read-only="true"<tx:methodname="*"，所以修改packageimportimportpackageimportimportimportimportpublicclassUserServiceImplimplementsUserServiceprivateprivateUserDAOpublicUserDAOgetUserDao()return}publicvoidsetUserDao(UserDAOuserDao)this.userDao=}publicbooleanfindLogin(Useruser)UserusrUserusr=if(usr!=eturn}}return}}}}修改加入注解，將DAObeanSpringpackageimportimportimportimportimportpublicclassextendsHibernateDaoSupportimplementsUserDAOpublicUser {Stringhql="fromUserpackagepackageimportimportimportimportimportpublicclassUserServiceImplimplementsUserServiceprivateUserDAOpublicUserDAOgetUserDao(){returnpublicvoidsetUserDao(UserDAOuserDao)this.userDao=publicbooleanfindLogin(Useruser)Userusr=if(usr!=List<User>listList<User>listUseruser=user=}return}}}}修改加入注解，將DAOService}}}return}}return但是，現(xiàn)在我們又遇到一個(gè)問題，HibernateUerDAOImpl但是，現(xiàn)在我們又遇到一個(gè)問題，HibernateUerDAOImplSessionFactory，那么我們需要將SessionFactory注入到其中。 修改隨便寫一個(gè)方法，這樣我們就可以使用注解@Resource從Springbean名為mySessionFactory；取出SessionFactoryHibernateUserSupportset（super.setSessionFactory(sessionFactory)），sessionFactory象。最后，如此兩個(gè)步驟，我們就完成了sessionFactory的注入。packageimportimportimportimportimportimportimportpublicclassextendsHibernateDaoSupportimplementsUserDAO}public}publicUser){{Stringhql="fromUser=?";List<User>listthis.getHibernateTemplate().find(hql,newObject[]{ Useruser=null;user=}return}}}}<bean<bean <propertyname="url"<propertyname="username"<propertyname="password"<propertyname="maxActive"<propertyname="initialSize"<beanid="mySessionFactory"<propertyname="dataSource"<property <property<propkey="hibernate.dialect"><prop<prop <beanid="txManager"<propertyname="sessionFactory"<tx:methodname="save*"<tx:methodname="update*"<tx:methodname="delete*"<tx:methodname="find*"read-only="true"<tx:methodname="*"修改packagepackagepublicclassUserServiceImplimplementsUserServiceprivateUserDAO}publicvoid}}eturn}}returnUserusr=if(usr!=publicbooleanfindLogin(Useruser)publicUserDAOgetUserDao()return}publicvoidsetUserDao(UserDAOuserDao)this.userDao=}新建ssh-<beans"""""<bean <propertyname="url"<propertyname="username"<propertyname="password"<propertyname="maxActive"<propertyname="initialSize"<beanid="mySessionFactory"<propertyname="dataSource"<property <property<propkey="hibernate.dialect"><prop<prop<web-app" 11)修改新建ssh-<beansxmlns=" <beanid="txManager"12)部署項(xiàng)目 步驟1，將項(xiàng)目中的mysql的Jar包mysql-connector-java-5.1.8-bin.jar刪除步驟2，拷貝該mysql的Jar包到Tomcat服務(wù)器的common/lib 刪除項(xiàng)目中的mysql的Jar將mysql的jar包拷貝到tomcat服務(wù)器的 13)測試（略（案例結(jié)束Spring管理事務(wù)的策略 AOP動(dòng) 動(dòng) 采用了AOP后，容器返回的對象 如果目標(biāo)對象有接口，采用如果目標(biāo)對象沒有接口，采用CGLIB【案例2】動(dòng)態(tài)新建工程配置好springpackagepackagepublicinterface{publicvoidpublicvoid}packagepackageimportpublicclassTest01publicvoidUserServiceuserService=newUserServiceImpl();}packageproxy;publicclassUserServiceImplimplementsUserServicepublicvoid{}publicvoidsave()}}新建測試類}} 運(yùn)行 動(dòng) 新建packageimportimportimportpublicclassJDKProxyFactoryimplementsprivateObjectprivateJDKProxyFactory()publicstaticJDKProxyFactoryreturnnew} publicObjectgetProxy(Classclazz)throwstargetclazz.newInstance(); oader(),clazz.getInterfaces(),this);return} @param@param@param@throwspublicObjectinvoke(Objectproxy,Methodmethod,Object[]{ObjectretVal=retValmethod.invoke(target,params);{}return}}packagepackageimportimportpublicclassTest01 publicvoidUserServiceuserService=newUserServiceImpl();}publicpublicvoidtestJDKProxy()throwsExceptionJDKProxyFactoryproxyFactory=JDKProxyFactory.getInstance();UserServiceuserService=}}}運(yùn)行如果沒有接口，比如更新部門時(shí)，只有DeptServiceImplDeptService修改修改packageimportpublicclassTest01 publicvoidtestJDKProxy()throwsExceptionJDKProxyFactoryproxyFactory=JDKProxyFactory.getInstance();UserServiceuserService=}voidtestJDKProxy1()throwsJDKProxyFactoryproxyFactory=JDKProxyFactory.getInstance();DeptServiceImpldeptService=packagepublicclassDeptServiceImplpublic{}publicvoid}}測試在沒有接口情況下，使用JDK會(huì)出錯(cuò)的情新建}}}運(yùn)行這種情況下，我們就需要使用這種情況下，我們就需要使用13)新建packageimportimportimportimportpublicclassCGLIBProxyFactoryimplementsprivateObjectprivatepublicstaticCGLIBProxyFactoryreturnnew}}}publicObjectgetProxy(Classclazz)throwsException{target=clazz.newInstance();Enhancerenhancer=newEnhancer();return}publicObjectintercept(Objectproxy,Methodmethod,Object[]params,MethodProxymethodProxy)throwsThrowableObjectretVal=null;retVal=method.invoke(target,System.out.println(}return}修改packagepackageproxy;publicclassTest01 publicvoidtestJDKProxy()throwsExceptionUserServiceuserService=} publicvoidtestJDKProxy1()throwsDeptServiceImpldeptService=}voidtestGglibProxy()throwsDeptServiceImpldeptService=}}運(yùn)行（案例結(jié)束Spring框架結(jié)構(gòu)我們在使用學(xué)習(xí)Spring框架時(shí)，只是重點(diǎn)介紹了IoC和AOP，這只是Spring強(qiáng)大功能的Core(TheIoCCore(TheIoCcontainer)AOPSpringSpring對JDBC的整合，屬于DAO 該封裝包提供了基礎(chǔ)的針對web此外Spring也提供了一種MVC實(shí)現(xiàn)。 Spring SpringMVC服務(wù)器控制器由 HandlerMap將請求映射到對應(yīng)的處理器Controller（相當(dāng)于Action）在Spring當(dāng)中如果寫一些處理器組件，一般實(shí)現(xiàn)Controller接口如果想將處理結(jié)果返回給用戶，那么在SpringViewResolver，該組件根據(jù)Controller返回的標(biāo)示，找到對應(yīng)的試圖，將響應(yīng)response返回給用戶處理3】SpringMVC新建工程導(dǎo)入Jar首先配置<?<?xmlversion="1.0"encoding="UTF-<web-app" 配 控制器 <?xmlversion<?xmlversion="1.0"encoding="UTF-<beansxmlns=""""""和之前的Spring寫視圖View（jsp 新建視圖頁面 同時(shí)actionlogin.do<%@pagecontentType="text/html;charset=utf-isELIgnored="false"pageEncoding="utf-<title>Inserttitle<formaction="login.do"用戶名：<inputtype="text" ：<inputtype="text"" 新建視圖頁面<%@<%@pagelanguage="java"import="java.util.*"pageEncoding="UTF-8"接下來新建Controller，返回值是ModelAndViewpackagepackageimportimportimportimportpublicclassLoginControlimplementsControllerHttpServletResponsearg1)throwsException ()相當(dāng)于 ==StringpasswordStringpassword=)&&&&returnnew}returnnew}}}}<?xmlversion<?xmlversion="1.0"encoding="UTF-<beansxmlns=""""""<<beanid="loginControl"那么，從如上步驟中，我們已經(jīng)完成了SpringMVCDispatcherServlet、<beansxmlns=""""""<beanid="loginControl"<propertyname="commandClass"<!--配置 配置 修改spring-<beanid="urlMap <property <prop<!--定義ViewResolver組件,實(shí)現(xiàn)根據(jù)視圖標(biāo)識獲取JSP<!--定義ViewResolver組件,實(shí)現(xiàn)根據(jù)視圖標(biāo)識獲取JSP<beanid="viewResolver"View<propertyname="viewClass"<propertyname="suffix"<propertyname="prefix" jspLoginControl