springMVC注解开发入门程序

最新推荐文章于 2024-12-19 20:50:04 发布

原创最新推荐文章于 2024-12-19 20:50:04 发布 · 371 阅读

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#springMVC #入门 #注解

本文介绍了如何使用SpringMVC框架进行Web应用开发，包括配置前端控制器DispatcherServlet、定义请求映射、创建控制器类和方法，并展示了一个具体的例子，演示了从配置文件到控制器处理请求并返回视图的过程。

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>>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_2_5.xsd" id="WebApp_ID" version="2.5">
  
  
  <display-name>SpringMVC</display-name>
  <!-- 配置前端控制器 -->
  
  <servlet>
  	<servlet-name>SpringMVCServlet</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<!-- contextConfigLocation加载配置文件：映射器、适配器的配置 -->
  	<init-param>
  	<param-name>contextConfigLocation</param-name>
  	<param-value>classpath:springMVC.xml</param-value>
  	</init-param>
  </servlet>
  
  <servlet-mapping>
  <servlet-name>SpringMVCServlet</servlet-name>
  <url-pattern>/</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:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx"
	
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	
	xmlns:aop="http://www.springframework.org/schema/aop"
	
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
		http://www.springframework.org/schema/mvc 
		http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-3.0.xsd 
		http://www.springframework.org/schema/aop 
		http://www.springframework.org/schema/aop/spring-aop-3.0.xsd 
		http://www.springframework.org/schema/tx 
		http://www.springframework.org/schema/tx/spring-tx-3.0.xsd ">							
   	<!-- 自动扫描控制器 -->
	<context:component-scan base-package="cn.xh.ssm.controller"></context:component-scan>

	<!-- 自动配置： 处理器映射器、处理器映适配器、视图解析器 -->
	<mvc:annotation-driven />

</beans>

>>ItemController3:

package cn.xh.ssm.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 cn.xh.ssm.po.Item;
/**
 * 注解
 * @author Administrator
 *
 */
@Controller
public class ItemController3 {
	
	@RequestMapping("/queryItem")
		public ModelAndView queryItem(){
			
			List<Item> itemList=new ArrayList();
			Item item1=new Item();
			item1.setName("苹果笔记本**");
			item1.setPrice(6000L);
			item1.setDetail("高级货");
			
			Item item2=new Item();
			item2.setName("联想笔记本**");
			item2.setPrice(5400L);
			item2.setDetail("ThinkPad T430 商务本");
			
			Item item3=new Item();
			item3.setName("苹果手机**");
			item3.setPrice(5000L);
			item3.setDetail("Iphone 6 plus");
			
			itemList.add(item1);
			itemList.add(item2);
			itemList.add(item3);
			
			
			
			ModelAndView modelAndView=new ModelAndView();
			modelAndView.addObject("itemList", itemList);
			
			modelAndView.setViewName("/WEB-INF/jsp/item/ItemsList.jsp");
			//modelAndView.setViewName("/index.jsp");
			return modelAndView;
			

		}

		
	
	}

>>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="${pageContext.request.contextPath }/item/editItem.action?id=${item.id}">修改</a></td>

</tr>
</c:forEach>

</table>
</form>
</body>

</html>