SpringMvc环境搭建Demo

新建WEB项目，WEB-INF下创建lib文件夹，导入jar包：

其中的jackson-core和jackson-mapper为@ResponseBody注解的依赖jar包 如果需要连接数据库需要导入数据库驱动包，tomcat的lib目录下也需要导入数据库的jar包 web.xml配置文件： <?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"> <servlet> <servlet-name>spring</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 配置文件扫描(spring和配置文件的名称前缀对应)--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:config/spring-*.xml</param-value> </init-param> <!-- 初始化时加载 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>

src目录下新建web.xml配置文件中的config目录， 创建spring-servlet.xml配置文件： <?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:tx="http://www.springframework.org/schema/tx" 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-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"> <!-- 自动扫描的包名 --> <context:component-scan base-package="com.*"/> <!-- 默认的注解映射的支持，自动注册DefaultAnnotationHandlerMapping和AnnotationMethodHandlerAdapter --> <mvc:annotation-driven /> <!-- 视图解释类 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> </bean> </beans>

注解扫描要注意需要扫描全部使用注解的包，否则error create bean

测试环境： ApplicationContext context = new ClassPathXmlApplicationContext("/conf/springmvc-servlet.xml"); DemoController controller = (DemoController) context.getBean("demoController"); System.out.println(controller);