JavaWeb_(SpringMVC框架)SpringMVC入门

    Spring MVC又叫SpringWebMVC是一个轻量级的基于请求响应的表现层框架。它是Spring框架的一部分。SpringMVC与Struts2都可以替代原始Servlet技术。

Spring Web MVC框架提供了MVC(模型 - 视图 - 控制器)架构和用于开发灵活和松散耦合的Web应用程序的组件。 MVC模式导致应用程序的不同方面(输入逻辑，业务逻辑和UI逻辑)分离，同时提供这些元素之间的松散耦合。

    1、SpringMVC是极具代表性的MVC框架对初学者学习很有帮助； 
a)模型(Model)封装了应用程序数据，通常它们将由Bean对象组成；
b)视图(View)负责渲染模型数据，一般来说它生成客户端浏览器可以解释HTML输出；
c)控制器(Controller)负责处理用户请求并构建适当的模型，并将其传递给视图进行渲染；
    2、与Spring框架无缝集成；
    3、对Servlet轻度封装，框架小巧轻便性能好；
    4、可使用注解式开发，编码简洁；
    5、便于测试；
    6、具有本地化、国际化、类型转换、数据验证等功能；
    7、使用人群十分广泛，在现在的企业招聘中属于java程序员必备技能之一；

1、 SpringMVC简要处理流程：

　　

2、SpringMVC完整处理流程图

　　普通版

HelloSpringMVC：搭建SpringMVC HelloWorld项目

　　a)导包 –> 02_jar -> spring_jar整理 -> spring_mvc； 

　　b)DispatcherServlet配置和拦截规则 (前端控制器、任务派发器、前端调度器)；

  <display-name>ssm_spring_mvc</display-name>
  <servlet>
      <servlet-name>springmvc</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      <init-param>
          <!-- 读取springmvc配置文件 -->
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath:springmvc.xml</param-value>
      </init-param>
  </servlet>
  
  <servlet-mapping>
     <servlet-name>springmvc</servlet-name>

    <!-- 开启注解扫描 -->
    <context:component-scan base-package="com.Gary"></context:component-scan>
    kanky
    <!-- 配置视图解析器  配置viewName 前缀与后缀 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"/>
            <property name="suffix" value=".jsp"/>
        </bean>最近发消息的时候注意以下两个群就行，等到过年的时候她和爸妈、大哥二哥呆一起的时候在问下她想法，顺便提下我的，大概率不答应的话就要分了。现在还是和她在一起还是希望她好好的，不找她私聊就行，等到2号还是3号我按点回来~

<?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>ssm_spring_mvc</display-name>
  <servlet>
      <servlet-name>springmvc</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      <init-param>
          <!-- 读取springmvc配置文件 -->
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath:springmvc.xml</param-value>
      </init-param>
  </servlet>
  
  <servlet-mapping>
     <servlet-name>springmvc</servlet-name>
     
     <!-- 拦截规则
         1 *.html  *.do  *.action  以扩展名方式进行拦截，不拦截静态资源，   .jpg .css .js .png  什么情况下都可以使用
         2 /不拦截 jsp  拦截静态资源                                                        RESTFul 风格   静态资源放行
         
         /*全部拦截  包括jsp  以及所有静态资源   不推荐使用
         
      -->

     <url-pattern>*.Gary</url-pattern>
  </servlet-mapping>
  
  <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>
</web-app>

<?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"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">
        
    <!-- 开启注解扫描 -->
    <context:component-scan base-package="com.Gary"></context:component-scan>
    
    <!-- 配置视图解析器  配置viewName 前缀与后缀 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"/>
            <property name="suffix" value=".jsp"/>
        </bean>
        
</beans>

　　在ItemController.java中配置一个Controller，通过访问list.gary请求跳转到item_list.jsp页面

@Controller
public class ItemController {

    //显示页面
    @RequestMapping(value="list.gary")
    public ModelAndView list() {
        ModelAndView mav = new ModelAndView();
        mav.setViewName("item_list");    
        return mav;
    }
}

　　通过访问http://localhost:8080/ssm_spring_mvc/list.Gary跳转到item_list.jsp页面

package com.Gary.controller;

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

//商品管理 ->  游戏管理

@Controller
public class ItemController {

    //显示页面
    @RequestMapping(value="list.gary")
    public ModelAndView list() {
        ModelAndView mav = new ModelAndView();
        mav.setViewName("item_list");    
        return mav;
    }
}

<?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>ssm_spring_mvc</display-name>
  <servlet>
      <servlet-name>springmvc</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      <init-param>
          <!-- 读取springmvc配置文件 -->
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath:springmvc.xml</param-value>
      </init-param>
  </servlet>
  
  <servlet-mapping>
     <servlet-name>springmvc</servlet-name>
     
     <!-- 拦截规则
         1 *.html  *.do  *.action  以扩展名方式进行拦截，不拦截静态资源，   .jpg .css .js .png  什么情况下都可以使用
         2 /不拦截 jsp  拦截静态资源                                                        RESTFul 风格   静态资源放行
         
         /*全部拦截  包括jsp  以及所有静态资源   不推荐使用
         
      -->

     <url-pattern>*.Gary</url-pattern>
  </servlet-mapping>
  
  <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>
</web-app>

<?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"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">
        
    <!-- 开启注解扫描 -->
    <context:component-scan base-package="com.Gary"></context:component-scan>
    
    <!-- 配置视图解析器  配置viewName 前缀与后缀 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"/>
            <property name="suffix" value=".jsp"/>
        </bean>
        
</beans>

　　使用SpringMVC向前台item_list.jsp传输数据

　　准备ItemInfo.java游戏信息bean

    //id
    private String item_id;
    //name
    private String item_name;
    //type
    private String item_type;
    //price
    private String item_price;

　　//getter and setter

package com.Gary.bean;

//游戏信息bean
public class ItemInfo {
    
    //id
    private String item_id;
    //name
    private String item_name;
    //type
    private String item_type;
    //price
    private String item_price;
    
    public ItemInfo(String item_id, String item_name, String item_type, String string) {
        super();
        this.item_id = item_id;
        this.item_name = item_name;
        this.item_type = item_type;
        this.item_price = string;
    }
    public String getItem_id() {
        return item_id;
    }
    public void setItem_id(String item_id) {
        this.item_id = item_id;
    }
    public String getItem_name() {
        return item_name;
    }
    public void setItem_name(String item_name) {
        this.item_name = item_name;
    }
    public String getItem_type() {
        return item_type;
    }
    public void setItem_type(String item_type) {
        this.item_type = item_type;
    }
    public String getItem_price() {
        return item_price;
    }
    public void setItem_price(String item_price) {
        this.item_price = item_price;
    }
    @Override
    public String toString() {
        return "ItemInfo [item_id=" + item_id + ", item_name=" + item_name + ", item_type=" + item_type
                + ", item_price=" + item_price + "]";
    }

}

　　通过ItemController.java向前台传输数据

        ModelAndView mav = new ModelAndView();
        
        //传递数据
        //准备一些测试数据    游戏id  游戏名称  游戏类型  价格
        ItemInfo info1 = new ItemInfo("1", "英雄联盟", "MOBA", "0");
        ItemInfo info2 = new ItemInfo("2", "守望先锋", "射击", "198");
        ItemInfo info3 = new ItemInfo("3", "吃鸡", "射击", "98");
        ItemInfo info4 = new ItemInfo("4", "魔兽世界", "MMORPG", "0");
        ItemInfo info5 = new ItemInfo("5", "保卫萝卜", "休闲", "0");
        
        //往ItemInfo集合中存放数据
        List<ItemInfo> itemList = new ArrayList<ItemInfo>();
        itemList.add(info1);
        itemList.add(info2);
        itemList.add(info3);
        itemList.add(info4);
        itemList.add(info5);
        
        //将游戏列表返回给前台
        mav.addObject("itemList", itemList);

package com.Gary.controller;

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

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

import com.Gary.bean.ItemInfo;

//商品管理 ->  游戏管理

@Controller
public class ItemController {

    //显示页面
    @RequestMapping(value="list.Gary")
    public ModelAndView list() {
        ModelAndView mav = new ModelAndView();
        
        //传递数据
        //准备一些测试数据    游戏id  游戏名称  游戏类型  价格
        ItemInfo info1 = new ItemInfo("1", "英雄联盟", "MOBA", "0");
        ItemInfo info2 = new ItemInfo("2", "守望先锋", "射击", "198");
        ItemInfo info3 = new ItemInfo("3", "吃鸡", "射击", "98");
        ItemInfo info4 = new ItemInfo("4", "魔兽世界", "MMORPG", "0");
        ItemInfo info5 = new ItemInfo("5", "保卫萝卜", "休闲", "0");
        
        //往ItemInfo集合中存放数据
        List<ItemInfo> itemList = new ArrayList<ItemInfo>();
        itemList.add(info1);
        itemList.add(info2);
        itemList.add(info3);
        itemList.add(info4);
        itemList.add(info5);
        
        //将游戏列表返回给前台
        mav.addObject("itemList", itemList);
        
        mav.setViewName("item_list");    
        return mav;
    }
}

 　　前台item_list.jsp页面数据的展示

                                    <table class="table table-yuk2 toggle-arrow-tiny" id="footable_demo" data-filter="#textFilter" data-page-size="5">
                                        <thead>
                                            <tr>
                                                <!--描述：商品数据标签-->
                                                <th>ID</th>
                                                <th>游戏名称</th>
                                                <th>类型</th>
                                                <th>原价</th>
                                            </tr>
                                        </thead>
                                        <tbody>
                                               <c:forEach items="${itemList }" var="item">
                                                <tr>
                                                    <td>${item.item_id }</td>
                                                    <td>${item.item_name }</td>
                                                    <td>${item.item_type }</td>
                                                    <td>${item.item_price }</td>
                                                    
                                                    <td data-value="1">
                                                        <a herf="#" id="edit_btn" class="btn btn-xs btn-info" data-toggle="modal" data-target="#editLayer" onclick="editGoods('${item.item_id}')">修改</a>
                                                        <a herf="#"  id="del_btn" class="btn btn-xs btn-danger" onclick="deleteGoods('${item.item_id}')">删除</a>
                                                    </td>
                                                   </tr>
                                            </c:forEach>
                                        </tbody>
                                        <tfoot class="hide-if-no-paging">
                                            <tr>
                                                <td colspan="5">
                                                    <ul class="pagination pagination-sm"></ul>
                                                </td>
                                            </tr>
                                        </tfoot>
                                    </table>

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <meta charset="UTF-8">
        <title>游戏管理后台</title>
        <meta name="viewport" content="initial-scale=1.0,maximum-scale=1.0,user-scalable=no">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
           <!-- bootstrap framework -->
        <link href="${pageContext.request.contextPath }/css/bootstrap.min.css" rel="stylesheet" media="screen">
        <!-- main stylesheet -->
        <link href="${pageContext.request.contextPath }/css/main.min.css" rel="stylesheet" media="screen" id="mainCss">
        <!-- elegant icons -->
        <link href="${pageContext.request.contextPath }/css/style.css" rel="stylesheet" media="screen">
        <!-- datepicker -->
        <link href="${pageContext.request.contextPath }/css/datepicker3.css" rel="stylesheet" media="screen">
        <!-- jBox -->
        <link href="${pageContext.request.contextPath }/css/jbox.css" rel="stylesheet" media="screen">
        <link href="${pageContext.request.contextPath }/css/noticeborder.css" rel="stylesheet" media="screen">

    </head>
    <body class="side_menu_active side_menu_expanded">
        <div id="page_wrapper">

            <!-- header -->
            <header id="main_header">
                <div class="container-fluid">
                    <!--logo-->
                    <div class="brand_section">
                        <a href="#"><img src="${pageContext.request.contextPath }/picture/logo01.png" alt="site_logo" width="108" height="40" style="margin-top: 5px"></a>
                    </div>
                    <div class="header_user_actions dropdown">
                        <div data-toggle="dropdown" class="dropdown-toggle user_dropdown">
                            <div class="user_avatar">
                                <img src="${pageContext.request.contextPath }/picture/head01.png" width="38" height="38">
                            </div>
                            <span class="caret"></span>
                        </div>
                        <ul class="dropdown-menu dropdown-menu-right">
                            <li><a href="#">个人中心</a></li>
                            <li><a href="#">注销</a></li>
                        </ul>
                    </div>
                </div>
            </header>

            <!-- main content -->
            <div id="main_wrapper">
                <div class="container-fluid">
                    <div class="row">
                        <div class="col-md-12">
                            <div class="row">
                                <div class="col-md-10">
                                    <table class="table table-yuk2 toggle-arrow-tiny" id="footable_demo" data-filter="#textFilter" data-page-size="5">
                                        <thead>
                                            <tr>
                                                <!--描述：商品数据标签-->
                                                <th>ID</th>
                                                <th>游戏名称</th>
                                                <th>类型</th>
                                                <th>原价</th>
                                            </tr>
                                        </thead>
                                        <tbody>
                                               <c:forEach items="${itemList }" var="item">
                                                <tr>
                                                    <td>${item.item_id }</td>
                                                    <td>${item.item_name }</td>
                                                    <td>${item.item_type }</td>
                                                    <td>${item.item_price }</td>
                                                    
                                                    <td data-value="1">
                                                        <a herf="#" id="edit_btn" class="btn btn-xs btn-info" data-toggle="modal" data-target="#editLayer" onclick="editGoods('${item.item_id}')">修改</a>
                                                        <a herf="#"  id="del_btn" class="btn btn-xs btn-danger" onclick="deleteGoods('${item.item_id}')">删除</a>
                                                    </td>
                                                   </tr>
                                            </c:forEach>
                                        </tbody>
                                        <tfoot class="hide-if-no-paging">
                                            <tr>
                                                <td colspan="5">
                                                    <ul class="pagination pagination-sm"></ul>
                                                </td>
                                            </tr>
                                        </tfoot>
                                    </table>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            
            <!-- edit layer -->
            <div class="modal fade" id="editLayer">
                <div class="modal-dialog modal-content">
                    <div class="modal-content">
                        <div class="modal-header">
                            <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
                            <h4 class="modal-title">修改游戏信息</h4>
                        </div>
                       <div class="modal-body">
                        <!--游戏修改详情弹出层表单-->
                        <form class="form-horizontal" id="edit_item_form">
                            <!-- 游戏id隐藏域 -->
                            <input type="hidden" id="edit_item_id" name="item_id"/>
                            <!-- 游戏名称 -->
                            <div class="form-group">
                                <label for="edit_item_name" class="col-sm-2 control-label">游戏名称</label>
                                <div class="col-sm-10">
                                    <input type="text" class="form-control" id="edit_item_name" placeholder="游戏名称" name="item_name">
                                </div>
                            </div>
                            <!-- 游戏类型 -->
                            <div class="form-group">
                                <label for="edit_item_price" class="col-sm-2 control-label">类型</label>
                                <div class="col-sm-10">
                                    <input type="text" class="form-control" id="edit_item_price" placeholder="类型" name="item_price">
                                </div>
                            </div>
                            <!-- 游戏原价 -->
                            <div class="form-group">
                                <label for="edit_item_price" class="col-sm-2 control-label">原价</label>
                                <div class="col-sm-10">
                                    <input type="text" class="form-control" id="edit_item_price" placeholder="原价" name="item_price">
                                </div>
                            </div>
                        </form>  
                    </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-default btn-sm" data-dismiss="modal">取消</button>
                            <button type="button" class="btn btn-primary btn-sm" onclick="updateItem()">确认修改</button>
                        </div>
                    </div>
                </div>
            </div>
            
             <!-- add layer -->
            <div class="modal fade" id="addLayer">
                <div class="modal-dialog modal-content">
                    <div class="modal-content">
                        <div class="modal-header">
                            <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
                            <h4 class="modal-title">新增游戏</h4>
                        </div>
                       <div class="modal-body">
                        <!--添加游戏弹出层表单-->
                        <form class="form-horizontal" id="add_item_form">
                            <!-- 游戏id隐藏域 -->
                            <input type="hidden" id="add_item_id" name="item_id"/>
                            <!-- 游戏名称 -->
                            <div class="form-group">
                                <label for="add_item_name" class="col-sm-2 control-label">游戏名称</label>
                                <div class="col-sm-10">
                                    <input type="text" class="form-control" id="add_item_name" placeholder="游戏名称" name="item_name">
                                </div>
                            </div>
                            <!-- 游戏类型 -->
                            <div class="form-group">
                                <label for="add_item_price" class="col-sm-2 control-label">类型</label>
                                <div class="col-sm-10">
                                    <input type="text" class="form-control" id="add_item_price" placeholder="类型" name="item_price">
                                </div>
                            </div>
                            <!-- 游戏原价 -->
                            <div class="form-group">
                                <label for="add_item_price" class="col-sm-2 control-label">原价</label>
                                <div class="col-sm-10">
                                    <input type="text" class="form-control" id="add_item_price" placeholder="原价" name="item_price">
                                </div>
                            </div>
                        </form>  
                    </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-default btn-sm" data-dismiss="modal">取消</button>
                            <button type="button" class="btn btn-primary btn-sm" onclick="addItem()">确认修改</button>
                        </div>
                    </div>
                </div>
            </div>
            
            <!-- main menu -->
            <nav id="main_menu">
                <div class="menu_wrapper">
                    <ul>
                        <li class="first_level">
                            <a href="javascript:void(0)">
                                <span class="icon_document_alt first_level_icon"></span>
                                <span class="menu-title">游戏管理</span>
                            </a>
                            <ul>
                                <li class="submenu-title">游戏管理</li>
                                <!-- <li><a href="#" data-toggle="modal" data-target="#addLayer">商品添加</a></li> -->
                                <li><a href="${pageContext.request.contextPath }/item/myitemlist.do">游戏列表</a></li>
                            </ul>
                        </li>
                    </ul>
                </div>
                <div class="menu_toggle">
                    <span class="icon_menu_toggle">
                        <i class="arrow_carrot-2left toggle_left"></i>
                        <i class="arrow_carrot-2right toggle_right" style="display:none"></i>
                    </span>
                </div>
            </nav>
        </div>

        <!-- jQuery -->
        <script src="${pageContext.request.contextPath }/js/jquery.min.js"></script>
        <!-- jQuery Cookie -->
        <script src="${pageContext.request.contextPath }/js/jquerycookie.min.js"></script>
        <!-- Bootstrap Framework -->
        <script src="${pageContext.request.contextPath }/js/bootstrap.min.js"></script>
        <!-- retina images -->
        <script src="${pageContext.request.contextPath }/js/retina.min.js"></script>
        <!-- switchery -->
        <script src="${pageContext.request.contextPath }/js/switchery.min.js"></script>
        <!-- typeahead -->
        <script src="${pageContext.request.contextPath }/js/typeahead.bundle.min.js"></script>
        <!-- fastclick -->
        <script src="${pageContext.request.contextPath }/js/fastclick.min.js"></script>
        <!-- match height -->
        <script src="${pageContext.request.contextPath }/js/jquery.matchheight-min.js"></script>
        <!-- scrollbar -->
        <script src="${pageContext.request.contextPath }/js/jquery.mcustomscrollbar.concat.min.js"></script>
        <!-- moment.js (date library) -->
        <script src="${pageContext.request.contextPath }/js/moment-with-langs.min.js"></script>
        <!-- Yukon Admin functions -->
        <script src="${pageContext.request.contextPath }/js/yukon_all.min.js"></script>
        <!-- page specific plugins -->
        <!-- footable -->
        <script src="${pageContext.request.contextPath }/js/footable.min.js"></script>
        <script src="${pageContext.request.contextPath }/js/footable.paginate.min.js"></script>
        <script src="${pageContext.request.contextPath }/js/footable.filter.min.js"></script>
           <!-- datepicker -->
        <script src="${pageContext.request.contextPath }/js/bootstrap-datepicker.js"></script>
           <!-- jBox -->
        <script src="${pageContext.request.contextPath }/js/jbox.min.js"></script>
        
        <script type="text/javascript">
            $(function() {
                //footable
                yukon_footable.goodslist();
                //datepicker
                yukon_datepicker.p_forms_extended();
            })
            
            //修改弹框回显
               function toEdit(id) {
                   $.ajax({
                       type:"post",
                       url:"${pageContext.request.contextPath }/item/toEdit",
                       data:{"id":id},
                       success:function(data) {
                           $("#edit_item_name").val(data.item_name);
                           $("#edit_item_type").val(data.item_type);
                           $("#edit_item_price").val(data.item_price);
                       },
                       dataType:"json"
                   });
               }
            //确认修改
            function updateItem() {
                $.post(
                    "${pageContext.request.contextPath }/item/update.do",
                    $("#edit_item_form").serialize(),
                    function(data){
                        alert("游戏信息更新成功!");
                        window.location.reload();
                });
            }
            
            //确认删除
            function deleteItem(id) {
                if(confirm('确实要删除该游戏吗?')) {
                    $.post(
                        "${pageContext.request.contextPath }/item/delete.do",
                        {"id":id},
                        function(data){
                            window.location.reload();
                    });
                }
            }
            
            //添加游戏
            function addItem() {
                $.post(
                    "${pageContext.request.contextPath }/item/save.do",
                    $("#add_item_form").serialize(),
                    function(data){
                        alert("游戏添加成功!");
                        window.location.reload();
                });
            }
        </script>
    </body>
</html>

　　springmvc.xml中的试图解析器，前缀解析器和后缀解析器

    <!-- 配置视图解析器  配置viewName 前缀与后缀 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

<?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"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">
        
    <!-- 开启注解扫描 -->
    <context:component-scan base-package="com.Gary"></context:component-scan>
    
    <!-- 配置视图解析器  配置viewName 前缀与后缀 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
        
</beans>

@RequestMapping注解

1. 多请求；
2. 限定请求方法；
3. 窄化(简化)请求路径;

　　1、使用@RequestMapping注解可以处理用户发起的请求

    //显示页面  可以通过"/item/list.do"请求去访问，也可以通过"mylist.do"请求去访问
    @RequestMapping(value={"/item/list.do","mylist.do"})

 　　2、后边也可以加上method=RequestMethod.GET，表示这个方法接收表单的GET请求

    @RequestMapping(value={"/item/list.do","mylist.do"}, method=RequestMethod.GET)

Controller中方法的返回值

1. ModelAndView：返回模型和视图
2. void：使用原生request，response
3. String：
   1. 返回视图名 viewName；比较推荐使用
   2. 转发 forword；
   3. 重定向 redirect；

package com.Gary.controller;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

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

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

import com.Gary.bean.ItemInfo;

//商品管理 ->  游戏管理

@Controller
public class ItemController {

    //显示页面  可以通过"/item/list.do"请求去访问，也可以通过"mylist.do"请求去访问
    @RequestMapping(value={"/item/list.do","mylist.do"}, method=RequestMethod.GET)
    public ModelAndView list() {
        ModelAndView mav = new ModelAndView();
        
        //传递数据
        //准备一些测试数据    游戏id  游戏名称  游戏类型  价格
        ItemInfo info1 = new ItemInfo("1", "英雄联盟", "MOBA", "0");
        ItemInfo info2 = new ItemInfo("2", "守望先锋", "射击", "198");
        ItemInfo info3 = new ItemInfo("3", "吃鸡", "射击", "98");
        ItemInfo info4 = new ItemInfo("4", "魔兽世界", "MMORPG", "0");
        ItemInfo info5 = new ItemInfo("5", "保卫萝卜", "休闲", "0");
        
        //往ItemInfo集合中存放数据
        List<ItemInfo> itemList = new ArrayList<ItemInfo>();
        itemList.add(info1);
        itemList.add(info2);
        itemList.add(info3);
        itemList.add(info4);
        itemList.add(info5);
        
        //将游戏列表返回给前台
        mav.addObject("itemList", itemList);
        
        mav.setViewName("item_list");    
        return mav;
    }
    
    
    //void类型
    @RequestMapping(value="")
    public void voidTest(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
        //获取参数
        request.getParameter("");
        
        //转发
        request.getRequestDispatcher("").forward(request, response);
        
        //重定向
        response.sendRedirect(request.getContextPath()+"/xx.jsp");
        
    }
    
    
    //String 转发
    @RequestMapping("forwardString.do")
    public String forwardString()
    {
        return "forward.mylist1.do";
    }
    
    
    //String 转发
    @RequestMapping("redirectString.do")
    public String redirectString()
    {
        return "redirect:from.jsp";
    }
    
    
    //String 
    @RequestMapping("testList.do")
    public String testList(Model model)
    {
        //传递数据
        
        //准备一些测试数据    游戏id  游戏名称  游戏类型  价格
        ItemInfo info1 = new ItemInfo("1", "英雄联盟", "MOBA", "0");
        ItemInfo info2 = new ItemInfo("2", "守望先锋", "射击", "198");
        ItemInfo info3 = new ItemInfo("3", "吃鸡", "射击", "98");
        ItemInfo info4 = new ItemInfo("4", "魔兽世界", "MMORPG", "0");
        ItemInfo info5 = new ItemInfo("5", "保卫萝卜", "休闲", "0");
                
        //往ItemInfo集合中存放数据
        List<ItemInfo> itemList = new ArrayList<ItemInfo>();
        itemList.add(info1);
        itemList.add(info2);
        itemList.add(info3);
        itemList.add(info4);
        itemList.add(info5);
                
        //将游戏列表返回给前台
        model.addAttribute("itemList",itemList);
        
        return "itemList";
        
    }
}