一、引入jar包:
1、引入spring的jar包
2、引入mybatis的jar包
3、引入spring与mybatis的整合包
mybatis-spring-1.2.4.jar
4、引入springmvc的jar包
spring-web.jar
spring-webmvc.jar
二、将Spring的IOC容器交给Web容器管理:
在 在web.xml配置spring提供的监听器(ContextLoaderListener)以及制定spring配置文件applicationContext.xml的位置
web.xml:
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
三、在web.xml中配置SpringMVC的前端控制器
(1)、在web.xml加入springmvc前端控制器的配置,并指定springmvc配置文件的位置
<servlet>
<servlet-name>springmvcservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:springmvc.xmlparam-value>
init-param>
servlet>
<servlet-mapping>
<servlet-name>springmvcservlet-name>
<url-pattern>*.dourl-pattern>
servlet-mapping>
(2)、配置spring自带的编码过滤器解决乱码问题:
<filter>
<filter-name>CharacterEncodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
filter>
<filter-mapping>
<filter-name>CharacterEncodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
四、SpringMVC中的文件配置:
(1)、在springmvc.xml中配置处理器映射器(RequestMappingHandlerMapping)和处理器适配器(RequestMappingHandlerAdapter):
<bean class = "org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">bean>
<bean class = "org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">bean>
注意:如果在springmvc中开启了注解驱动,则默认配置好以上两个
开启注解驱动的配置(mvc:annotation-driven):
<mvc:annotation-driven>mvc:annotation-driven>
(2)、配置视图解析器(InternationnalResourceViewResolver)
class = "org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/">property>
<property name="suffix" value=".jsp">property>
prefix表示我们在Controller中请求页面路径的通用前缀。
suffix表示我们在Controller中请求页面文件路径的通用后缀。
(3)开启springmvc的组件扫描,在环境配置中与spring的组件扫描冲突,只扫描Controller的组件
<context:component-scan base-package="Controller包名,可以放大扫描包的位置" use-default-filters="false">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Controller"/>
context:component-scan>
五、spring的文件配置(applicationContext.xml)
(1)、开启组件扫描,过滤掉在springmvc中配置的Controller。
<context:component-scan base-package="spring的扫描包文件" >
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller"/>
context:component-scan>
(2)、配置数据库连接池(c3p0)为例:
property-placeholder location = "classpath:jdbc.properties"/>
id= "dataSource"
class= "com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}">property>
<property name="jdbcUrl" value="${jdbc.url}">property>
<property name="user" value="${jdbc.user}">property>
<property name="password" value="${jdbc.password}">property>
(3)、配置管理sqlSessionFactory
<bean id = "sqlSessionFactory" class = "org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref = "dataSource">property>
<property name="configLocation" value="classpath:mybatis-config.xml">property>
bean>
(4)、配置到持久层开发的包
class= "org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="持久层开发的包">property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">property>
将持久层开发的接口和相关的sql.xml放在该包下进行开发
六、mybatis-config主文件配置:
<configuration>
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
settings>
<mappers>
<package name=".java接口文件和.xml的sql文件包名"/>
mappers>
configuration>
控制层组件的三大问题:
1、怎么匹配请求
2、怎么返回
3、怎么获取URL请求的参数