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SpringMvc的入门案例

2016-07-11 22:43 495 查看

开发环境

配置前端控制器web.xml

<?xmlversion="1.0"encoding="UTF-8"?>

<web-appversion="3.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <display-name></display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<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>

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

配置springmvc.xml核心文件

<beansxmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">


<beanname="/queryItems.action"class="com.cloud.ctroller.ItemController1"/>


<beanclass="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>


<beanclass="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>


<beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"/>
</beans>

编写一个PO类

package com.cloud.po;
import java.util.Date;
publicclass Items {
private Integerid;
private Stringname;
private Floatprice;
private Stringpic;
private Datecreatetime;
private Stringdetail;
//此处省略get()和set()方法
}

开发处理器

package com.cloud.ctroller;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
import com.cloud.po.Items;
/**
*
实现Controller接口的处理器
*
@author Administrator
*
*/
publicclass ItemController1 implements Controller{
@Override
public ModelAndView handleRequest(HttpServletRequest request,
HttpServletResponse response)throws Exception {
//创建几条静态数据
List<Items> itemsList =
new ArrayList<Items>();
//向list中填充静态数据
Items items_1 = new Items();
items_1.setName("联想笔记本");
items_1.setPrice(6000f);
items_1.setDetail("ThinkPad T430联想笔记本电脑！");
Items
items_2 = new Items();

items_2.setName("苹果手机");

items_2.setPrice(5000f);

items_2.setDetail("iphone6苹果手机！");
itemsList.add(items_1);
itemsList.add(items_2);
//返回modelAndView
ModelAndView modelAndView =
new ModelAndView();
modelAndView.addObject("itemsList", itemsList);
//指定试图
modelAndView.setViewName("/WEB-INF/jsp/items/itemsList.jsp");
return modelAndView;
}
}

编写一个jsp显示页面

<%@pagelanguage="java"contentType="text/html;
charset=UTF-8"
pageEncoding="UTF-8"%>
<%@tagliburi="http://java.sun.com/jsp/jstl/core"prefix="c"%>
<%@tagliburi="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<metahttp-equiv="Content-Type"content="text/html;
charset=UTF-8">
<title>查询商品列表</title>
</head>
<body>
<formaction="${pageContext.request.contextPath }/item/queryItem.action"method="post">
查询条件：
<tablewidth="100%"border=1>
<tr>
<td><inputtype="submit"value="查询"/></td>
</tr>
</table>
商品列表：
<tablewidth="100%"border=1>
<tr>
<td>商品名称</td>
<td>商品价格</td>
<td>生产日期</td>
<td>商品描述</td>
<td>操作</td>
</tr>
<c:forEachitems="${itemsList }"var="item">
<tr>
<td>${item.name }</td>
<td>${item.price }</td>
<td><fmt:formatDatevalue="${item.createtime}"pattern="yyyy-MM-dd
HH:mm:ss"/></td>
<td>${item.detail }</td>

<td><ahref="${pageContext.request.contextPath
}/item/editItem.action?id=${item.id}">修改</a></td>
</tr>
</c:forEach>
</table>
</form>
</body>
</html>

参考文章：
http://blog.csdn.net/dzy21/article/details/51864486 //springmvc框架原理图解

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