一、Springmvc入门程序

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
  <display-name>springmvc-01</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  
  
  <!-- 前端控制器 -->
  <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.xml</param-value>
  	</init-param>
  </servlet>
  <servlet-mapping>
  	<servlet-name>springmvc</servlet-name>
  	<!-- 
  		1./* 拦截所有 jsp js png .css 真的全拦截，不建议使用
  		2.*.action *.do 拦截以do action 结尾的请求，肯定能使用
  		3./ 拦截所有(不包括jsp) 包含.js .png .css 强烈建议使用， 前台，面向消费者  /对静态资源放行
  	 -->
  	<url-pattern>*.action</url-pattern>
  </servlet-mapping>
  
</web-app>

springmvc.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:p="http://www.springframework.org/schema/p"
	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-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

	<!-- 扫描@Controller @Service -->
	<context:component-scan base-package="com.itheima"></context:component-scan>
	
	 
	<!-- 处理器映射器 -->
<!-- 	<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean> -->
	<!-- 处理器适配器 -->
<!-- 	<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean> -->
	

	<!-- 注解驱动 -->
	<mvc:annotation-driven />
	
	<!-- 视图解析器 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
	
</beans>

ItemController

package com.itheima.springmvc.controller;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

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

import com.itheima.springmvc.pojo.Items;

/**
 * 商品管理
 * @author mjl
 *
 */
@Controller
public class ItemController {

	//入门程序 第一
	@RequestMapping(value="/item/itemList.action")
	public ModelAndView itemList(){
		
		// 创建页面需要显示的商品数据
		List<Items> list = new ArrayList<Items>();
		list.add(new Items(1, "1华为 荣耀8", 2399f, new Date(), "质量好！1"));
		list.add(new Items(2, "2华为 荣耀8", 2399f, new Date(), "质量好！2"));
		list.add(new Items(3, "3华为 荣耀8", 2399f, new Date(), "质量好！3"));
		list.add(new Items(4, "4华为 荣耀8", 2399f, new Date(), "质量好！4"));
		list.add(new Items(5, "5华为 荣耀8", 2399f, new Date(), "质量好！5"));
		list.add(new Items(6, "6华为 荣耀8", 2399f, new Date(), "质量好！6"));
		
		
		ModelAndView mv = new ModelAndView();
		//添加数据
		mv.addObject("itemList", list);
		mv.setViewName("itemList");
		return mv;
	}
}

Items

package com.itheima.springmvc.pojo;

import java.util.Date;

public class Items {
    private Integer id;

    private String name;

    private Float price;

    private String pic;

    private Date createtime;

    private String detail;
    
    public Items(Integer id, String name, Float price, Date createtime, String detail) {
		super();
		this.id = id;
		this.name = name;
		this.price = price;
		this.createtime = createtime;
		this.detail = detail;
	}

	public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name == null ? null : name.trim();
    }

    public Float getPrice() {
        return price;
    }

    public void setPrice(Float price) {
        this.price = price;
    }

    public String getPic() {
        return pic;
    }

    public void setPic(String pic) {
        this.pic = pic == null ? null : pic.trim();
    }

    public Date getCreatetime() {
        return createtime;
    }

    public void setCreatetime(Date createtime) {
        this.createtime = createtime;
    }

    public String getDetail() {
        return detail;
    }

    public void setDetail(String detail) {
        this.detail = detail == null ? null : detail.trim();
    }
}

itemList.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt"  prefix="fmt"%>
<!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=UTF-8">
<title>查询商品列表</title>
</head>
<body> 
	<form action="${pageContext.request.contextPath }/item/queryitem.action" method="post">
		查询条件：
		<table width="100%" border=1>
			<tr>
				<td><input type="submit" value="查询"/></td>
			</tr>
		</table>
		商品列表：
		<table width="100%" border=1>
			<tr>
				<td>商品名称</td>
				<td>商品价格</td>
				<td>生产日期</td>
				<td>商品描述</td>
				<td>操作</td>
			</tr>
			<c:forEach items="${itemList }" var="item">
				<tr>
					<td>${item.name }</td>
					<td>${item.price }</td>
					<td><fmt:formatDate value="${item.createtime}" pattern="yyyy-MM-dd HH:mm:ss"/></td>
					<td>${item.detail }</td>
					
					<td><a href="${pageContext.request.contextPath }/itemEdit.action?id=${item.id}">修改</a></td>
				
				</tr>
			</c:forEach>
		</table>
	</form>
</body>

</html>