搭建springweb项目 需要五步
1,前端控制器 dispatcherservlet,在web.xml中配置
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>Spring_Mybatis_zhengHe_linaXi</display-name> <!-- spring前端控制器 (程序入口) --> <servlet> <servlet-name>springMvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springMvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>2,处理器映射器 handlermapping web.xml 文件中配置的文件中配置,上边配置的是在classpath:spring-mvc.xml文件中
3,处理器适配器 handler adapter
4,视图解析器 viewresolver
5,注册controller
<?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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"> <!-- 2,3,步 配置处理器映射器和处理器适配器 start --> <!-- mvc:annotation-driven 用于代替注解处理器映射器和注解处理器适配器的配置,即有了这个标签就自动配置注解处理器适配和注解处理器适配器,就可以不用再单独配置适配器和映射器了.--> <mvc:annotation-driven /> <!-- 配置处理器映射器和处理器适配器 end --> <!-- 4步,视图解析器 start --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 视图解析器 end --> <!-- 5,注册controller start --> <!-- 注册controller 不然处理器映射器无法找到handler(controller) 交给处理器适配器执行--> <!-- 也可以使用注解扫描<context:component-scan base-package="扫描包路径"/>,使用注解扫描可以不用每写一个controller都要注册一次,如jeecms就是写一个contrller,service就要注册一次。--> <!-- <bean class="com.ct.ssmlianxi.IndexController"></bean> --> <context:component-scan base-package="com.ct.ssmlianxi"/> <!-- 注册controller end --> </beans>