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整合web层
表现层就一个springmvc框架!由springmvc来管理controller,配置文件内容有:
- 需要扫描controller
- 配置注解驱动
- 配置视图解析器
配置完spring-mvc之后不要忘了在web.xml中添加配置:
- Spring容器的配置
- Springmvc前端控制器的配置
- Post乱码过滤器
1)配置spring-mvc.xml文件
<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"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!--指定注解扫描包路径-->
<context:component-scan base-package="com.oak.xiyuyou.controller"/>
<!-- 开启Spring mvc注解扫描,处理器映射器和适配器均不需要再配置 -->
<mvc:annotation-driven/>
<!--定义视图解析器ViewResolver -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 前缀属性 返回的视图以prefix属性的值作为开头-->
<property name="prefix" value="/WEB-INF/"/>
<!-- 后缀属性 返回的视图以suffix属性的值作为结尾-->
<property name="suffix" value=".jsp"/>
</bean>
</beans>
我们springmvc.xml文件中配置的扫描包是com.taotao.controller,因此我们需要创建这么一个目录,并且从视图解析器的配置中可以看出,我们还要在WEB-INF目录下新建一个jsp目录:
2)在web.xml中配置前端控制器和编码过滤器
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>netctoss0702_ssm_demo05</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!-- post字符集编码过滤器 -->
<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>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 初始化Spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置前端控制器 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<!-- 指定springmvc配置文件的路径。如果不指定,默认为:/WEB-INF/${servlet-name}-servlet.xml -->
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-mvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
启动项目访问测试即可。