SpringMvc環境搭建Demo

建立WEB項目，WEB-INF下建立lib檔案夾，導入jar包：

其中的jackson-core和jackson-mapper為@ResponseBody注解的依賴jar包 如果需要連接配接資料庫需要導入資料庫驅動包，tomcat的lib目錄下也需要導入資料庫的jar包 web.xml配置檔案： <?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> <!-- 配置檔案掃描(spring和配置檔案的名稱字首對應)--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:config/spring-*.xml</param-value> </init-param> <!-- 初始化時加載 --> <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目錄下建立web.xml配置檔案中的config目錄， 建立spring-servlet.xml配置檔案： <?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"> <!-- 自動掃描的包名 --> <context:component-scan base-package="com.*"/> <!-- 預設的注解映射的支援，自動注冊DefaultAnnotationHandlerMapping和AnnotationMethodHandlerAdapter --> <mvc:annotation-driven /> <!-- 視圖解釋類 --> <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>

注解掃描要注意需要掃描全部使用注解的包，否則error create bean

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