框架2016版笔记spring4day03讲义专注于JavaNet和Php网页平面设计工程师的培训

掌握SSH的整合SpringAOP对客户管理的对于的系统而言，现在有很多的DAO类，比如客户的DAO，联系人DAO等等。客户提DAOsave开头的方法实现权限的校验，需<beansxmlns=""""publicpublicclassProductDaopublic}public}public}public<beanid="productDao": publicclassMyAspectAnnopublicvoid}privatevoid}publicclassMyAspectAnnopublicvoid}public}publicObjectaround(ProceedingJoinPointjoinPointthrowsThrowable{System.out.println("环绕前通知==========");Objectobj=joinPceed();return}public}publicvoid} privatevoid privatevoid privatevoid privatevoid} publicvoidDriverManagerDataSourcedataSource=newDriverManagerDataSource();tete=new te.update("insertintoaccountvalues(null,?,?)",} <propertyname="url"<bean te" publicclassSpringDemo2{ private te publicvoid te.update("insertintoaccountvalues(null,?,?)",}}dbcp连接池的jar<beanid="dataSource"<propertyname="url" <beanid="dataSource"<propertyname="user"publicclassSpringDemo3{ private te publicvoid ceholder te.update("insertintoaccountvalues(null,?,?)",}publicvoid te.update("updateaccountsetname=?,money=?whereid=?",}publicvoid te.update("deletefromaccountwhereid=?",}publicvoidAccountaccount=jdbcTem id=?",newMyRowMapper(),1);}publicvoidList<Account>list= te.query("select*fromaccount",for(Accountaccount:{}}classMyRowMapperimplementspublicAccountmapRow(ResultSetrs,introwNum)throws{Accountaccount=newAccount();returnaccount;}}}}原子性:强调事务的不可分割一致性:事务的执行的前后数据的完整性保持一致性:一个事务执行的过程中,不应该受到其他事务的干扰持久性:事务一旦结束,数据就持久到数据库脏 不可重复读:一个事务读到了另一个事务已经提交的update的数据导致多次查询结果不一致. Spring进行事务管理一组JDBC或iBatis进行持久化数据时使用使用TransactionStatus里面 PROPAGATION_REQUIRES_NEW如果有事务存在，挂起当前事务，创建一个新的事务PROPAGATION_NOT_SUPPORTEDPROPAGATION_NEVERPROPAGATION_NESTEDpublicpublicinterfaceAccountServicepublicvoidtransfer(Stringfrom,Stringto,Double}publicclassAccountServiceImplimplementsAccountServiceprivateAccountDaothis.accountDao=}publicvoidtransfer(Stringfrom,Stringto,Double{accountDao.outMoney(from,money);accountDao.inMoney(to,money);}}publicinterfaceAccountDaopublicvoidoutMoney(Stringfrom,DoublepublicvoidinMoney(Stringto,Double}publicclassAccountDaoImplextendsJdbcDaoSupportimplementsAccountDaopublicvoidoutMoney(Stringfrom,Doublemoney) te().update("updateaccountsetmoney=money-?wherename=?",money,from);}publicvoidinMoney(Stringto,Doublemoney) te().update("updateaccountsetmoney=money+?wherename=?",money,to);}} <beanid="accountDao"publicclassSpringDemo4{privateAc