1.0--springmvc快速构建

1.0

　　直接来，

第一步：创建web工程

第二步：加入maven依赖，或者jar包

<!-- 版本锁定 -->
<properties>
<spring.version>5.0.2.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
</dependencies>

 

第三步：web.xml文件配置springmvc核心控制器

<!-- 配置 spring mvc 的核心控制器 -->
<servlet>
<servlet-name>SpringMVCDispatcherServlet</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<!-- 配置初始化参数，用于读取 SpringMVC 的配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:SpringMVC.xml</param-value>
</init-param>
<!-- 配置 servlet 的对象的创建时间点：应用加载时创建。
取值只能是非 0 正整数，表示启动顺序 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVCDispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

第四步：创建springmvc的配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:mvc="http://www.springframework.org/schema/mvc"
 xmlns:context="http://www.springframework.org/schema/context"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
 http://www.springframework.org/schema/mvc
 http://www.springframework.org/schema/mvc/spring-mvc.xsd
 http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd">
 <!-- 配置创建 spring 容器要扫描的包 -->
 <context:component-scan base-package="com.itheima"></context:component-scan>
 
 <!-- 配置视图解析器 -->
bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
 <property name="prefix" value="/WEB-INF/pages/"></property>
 <property name="suffix" value=".jsp"></property>
 </bean>
</beans>

第五步：创建controller层

@Controller("helloController")
public class HelloController {
@RequestMapping("/hello")
public String sayHello() {
System.out.println("HelloController 的 sayHello 方法执行了。。。。");
return "success";
}
}

第六步：直接   localhost：8080/helloController/hello访问