开始springmvc的学习基础框架

一、基于非注解方式的mvc

1、前置准备

①、下载稳定版的spring的jar包

http://repo.spring.io/release/org/springframework/spring/

②、下载需要的日志jar包(commons-logging-1.2)

http://commons.apache.org/proper/commons-logging/

③、需要的jar包

aop:切面

core：核心

beans：bean管理

context context容器

expresion 表达式

webmvc ：springmvc

web:核心的网站包

commons-logging：日志文件

④、配置springmvc的前端控制器 web.xml

<?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-name>springmvc</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>

<param-name>contextConfigLocation</param-name>

<param-value>/WEB-INF/springmvc-config.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>

⑤、配置spring容器

<?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"
       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">
       
       <!-- <context:component-scan base-package="com.demo.controller">

</context:component-scan>-->

⑦、创建一个WEB-INF下的jps文件下的index.jsp文件

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
   <h1>this is a first page</h1>
   ${msg }
</body>

</html>

⑧、写在com.demo.controller下写Controller的控制器

a、普通方式实现

package com.demo.controller;

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

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

public class FirstController implements Controller{

   @Override
   public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {
       ModelAndView modelAndView = new ModelAndView("/WEB-INF/jsp/index.jsp");
       modelAndView.addObject("msg", "hello");
       return modelAndView;
   }

}

b、通过注解的方式实现的前端控制器

@Controller
public class AnotationController {

   @RequestMapping("/hello")
   public String hello(Model model) {
       model.addAttribute("msg", "好好学习");
       return "index";
   }
}

⑨、启动服务器

使用localhost:8080/hello进行访问

开始springmvc的学习基础框架

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