从零开始搭建SpringMvc框架

版权声明：如需转载，请注明出处，谢谢！ https://blog.csdn.net/qq_41172416/article/details/82428074

第一步，导入jar包

注意：红色框中的jar包为，springMVC所需的jar包；其余为之前spring框架所需的jar包。

 

 jar包地址：https://pan.baidu.com/s/1czUtOg7VRFAB0_VmlqhWJg

 第二步，在web.xml中配置Servlet

 <!--  配置spring mvc的核心控制器DispatcherServlet -->
  <servlet>
  	  <servlet-name>springmvc</servlet-name>
  	  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	  <!-- 初始化参数 -->
  	  <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>

 第三步，创建Spring MVC的配置文件（Spring-servlet.xml）

 第一种：使用xml编写Spring-servlet.xml

 1、Spring-servlet.xml

<?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/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">
	
	<!-- 配置处理器映射 -->
	<bean name="/index.html" class="cn.smbms.controller.IndexController" />
	
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/"/>
		<property name="suffix" value=".jsp"/>
	</bean>
</beans>

 2、IndexController控制器

package com.bdqn.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

public class IndexController extends AbstractController {

	@Override
	protected ModelAndView handleRequestInternal(HttpServletRequest arg0,
			HttpServletResponse arg1) throws Exception {
		System.out.println("hello,Spring MVC");
		return new  ModelAndView("index");
	}

}

  第二种：使用注解编写Spring-servlet.xml

前言：如果有多个控制器，就需要定义多个控制器的javaBean，这样业务太繁琐，故而，给大家介绍下面的这种配置。

  1、Spring-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:mvc="http://www.springframework.org/schema/mvc"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    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">
     
	<!-- 开启注解 -->
	<mvc:annotation-driven/>
	<!-- 扫描注解的控制器 -->
	<context:component-scan base-package="com.bdqn.controller"/>
	
	<!-- 完成视图的对应 -->
	<!-- 对转向页面的路径解析。prefix：前缀， suffix：后缀 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
		<property name="prefix" value="/WEB-INF/jsp/"/>
		<property name="suffix" value=".jsp"/>
	</bean>
</beans>

  2、IndexController控制器

package com.bdqn.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/user")
public class userController {
	
	@RequestMapping("/index.html")
	public String user(){
		return "index";
	}
	
	@RequestMapping("/test.html")
	public  ModelAndView show(@RequestParam(value="userName",required=false,defaultValue="游客")String userName) {
		ModelAndView mView=new ModelAndView();
		mView.addObject("userName", userName);
		mView.setViewName("success");
		return mView;
	}
}

 到这搭建SpirngMVC就结束了！

演示案例：https://pan.baidu.com/s/1f3rcseFJP1u_X5DcY49dtQ

访问地址：http://localhost:8080/chapter09_001/user/index.html（注意：此项目用myeclips所创建）