spring 开始构造
1，选择“org.apache.maven.archetypes:maven-archetype-webapp”骨架（模板），创建一个Web项目：
在main 目录下创建文件夹 java, resources mark as:
添加依赖：
<properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> <spring.version>4.3.0.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!--Spring框架核心库 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <!-- Spring MVC --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!-- JSTL --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> </dependencies>
WEB-INF下有web.xml 文件：
修改web.xml注册中心控制器DispatcherServlet
<?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>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:springmvc-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
添加Spring MVC配置文件：resources 目录下 springmvc-servlet.xml
<?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: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.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- Spring MVC不处理静态资源 -->
<context:component-scan base-package="com.ljs.springmvc01"></context:component-scan>
<!-- Spring MVC不处理静态资源 -->
<mvc:default-servlet-handler></mvc:default-servlet-handler>
<!-- 支持mvc注解驱动 -->
<!--在spring中一般采用@RequestMapping注解来完成映射关系，
要想使@RequestMapping注解生效必须向上下文中注册DefaultAnnotationHandlerMapping和一个AnnotationMethodHandlerAdapter
实例，这两个实例分别在类级别和方法级别处理。而annotation-driven配置帮助我们自动完成上述两个实例的注入。-->
<mvc:annotation-driven></mvc:annotation-driven>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
<property name="prefix" value="/WEB-INF/view/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
创控制器
@Controller
@RequestMapping("/hello")
public class HelloWorld {
@RequestMapping("/hi")
public String hi(Model model){
model.addAttribute("msg","hello spring mvc");
return "hi";
}
}
创建视图
在WEB-INF/view目录中创建视图，hi.jsp视图将从Action中带回的信息展示，
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <html> <head> <title>Title</title> </head> <body> <h2>${msg}</h2> </body> </html>
