Configuration information of web. xml in SSM, ssmweb. xml

Configuration information of web. xml in SSM, ssmweb. xml

Recently, I have learned how to build an SSM framework project. In fact, this project is free to keep trying and failing, so that I can be more impressed.

The following describes the configuration information of web. xml in the project:

<? 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: p = "http://www.springframework.org/schema/p"
Xmlns: context = "http://www.springframework.org/schema/context"
Xmlns: mvc = "http://www.springframework.org/schema/mvc"
Xsi: schemaLocation = "http://www.springframework.org/schema/beans
Http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
Http://www.springframework.org/schema/context
Http://www.springframework.org/schema/context/spring-context-3.1.xsd
Http://www.springframework.org/schema/mvc
Http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd>

<! -- Automatic scanning (the project package scanned here is the basic package of the project) -->
<Context: component-scan base-package = "com. su. ssm"/>

<! -- Introduce the database connection configuration file: (jdbc. properties) -->
<Bean id = "propertyConfigurer"
Class = "org. springframework. beans. factory. config. PropertyPlaceholderConfigurer">
<Property name = "location" value = "classpath: jdbc. properties"/>
</Bean>
<! -- Import the database connection configuration property file: Get the relevant value -->
<Bean id = "dataSource" class = "org. apache. commons. dbcp. BasicDataSource" destroy-method = "close">
<Property name = "driverClassName" value = "$ {jdbc. driver}"/>
<Property name = "url" value = "$ {jdbc. url}"/>
<Property name = "username" value = "$ {jdbc. username}"/>
<Property name = "password" value = "$ {jdbc. password}"/>
<! -- Initialize the connection size -->
<Property name = "initialSize" value = "$ {initialSize}"> </property>
<! -- Maximum number of connection pools -->
<Property name = "maxActive" value = "$ {maxActive}"> </property>
<! -- Maximum idle connection pool -->
<Property name = "maxIdle" value = "$ {maxIdle}"> </property>
<! -- Minimum idle connection pool -->
<Property name = "minIdle" value = "$ {minIdle}"> </property>
<! -- Get the maximum waiting time for a connection -->
<Property name = "maxWait" value = "$ {maxWait}"> </property>
</Bean>

<! -- (Import of object classes): spring and MyBatis are perfectly integrated, and the configuration ing file of mybatis is not required: the import value of object classes -->
<Bean id = "sqlSessionFactory" class = "org. mybatis. spring. SqlSessionFactoryBean">
<Property name = "dataSource" ref = "dataSource"/>
<! -- Automatically scans mapping. xml files (ing file scanning) -->
<Property name = "mapperLocations" value = "classpath: com/su/ssm/mapping/*. xml"> </property>
<Property name = "typeAliasesPackage" value = "com. su. ssm. pojo"/>
</Bean>

<! -- (Interface awareness) The package name of the DAO interface. Spring will automatically find the class under it: the import interface of the object class -->
<Bean class = "org. mybatis. spring. mapper. MapperScannerConfigurer">
<Property name = "basePackage" value = "com. su. ssm. dao"/>
<Property name = "sqlSessionFactoryBeanName" value = "sqlSessionFactory"> </property>
</Bean>

<! -- (Transaction Management) transaction manager, use JtaTransactionManager for global tx -->
<Bean id = "transactionManager"
Class = "org. springframework. jdbc. datasource. DataSourceTransactionManager">
<Property name = "dataSource" ref = "dataSource"/>
</Bean>
</Beans>

The configuration above is very clear. Try it more than I don't know.