SpringMVC入门程序

SpringMVC总结

• • 1、基础jar包
  • 2、web.xml
  • 3、springmvc.xml
  • 4、 控制层 ItemController.java
  • 5、视图层 itemList.jsp
  • 6、运行访问

1、基础jar包

<dependency>
	<groupId>org.springframework</groupId>
	<artifactId>spring-webmvc</artifactId>
	<version>3.2.8.RELEASE</version>
</dependency>

<dependency>
	<groupId>org.springframework</groupId>
	<artifactId>spring-jdbc</artifactId>
	<version>3.2.8.RELEASE</version>
</dependency>

<dependency>
	<groupId>junit</groupId>
	<artifactId>junit</artifactId>
	<version>4.12</version>
</dependency>



<dependency>
	<groupId>mysql-connector-java</groupId>
	<artifactId>mysql-connector-java</artifactId>
	<version>5.1.17</version>
</dependency>
  
<dependency>
	<groupId>commons-dbcp</groupId>
	<artifactId>commons-dbcp</artifactId>
	<version>1.2.2</version>
</dependency>

<dependency>
	<groupId>com.fasterxml.jackson.core</groupId>
	<artifactId>jackson-core</artifactId>
	<version>2.8.3</version>
</dependency>

2、web.xml

1. 注册DispatcherServlet

<?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>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
 
 <!-- 注册DispatcherServlet -->
	<servlet>
		<servlet-name>springMVC</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- 默认找 -->
		<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
		2. *.action *.do 拦截以do action结尾的 肯定能使用 ERP
		3. / 拦截所有（不包括jsp）包含（js.png css)强烈建议使用
		 -->
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

3、springmvc.xml

1. 扫描包
2. 处理器映射器以及处理器适配器（这个可以由<mvc:annotation-driven></mvc:annotation-driven>取代）
3. 视图解析器

<?xml version="1.0" encoding="UTF-8"?>
<!-- 3、配置spring-servlet.xml（基中的部分MVC的配置可另外再分一个bean.xml配置，这里为了方便统一放在一个里面）: -->
<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"
    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 
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    
    <!--扫描  -->
    <context:component-scan base-package="com.itheima"></context:component-scan>
    
	 <!-- 处理器映射器配置 
     <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping RequestMappingHandlerMapping"></bean>
	     处理器适配器 
     <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter RequestMappingHandlerAdapter"></bean>-->
     
     <!-- mvc注解驱动(这个一用上面两行代码就不用了写了） -->
     <mvc:annotation-driven></mvc:annotation-driven>
     
     <!-- 视图解析器 (自动增加前缀和后缀)-->
     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
     
		<property name="prefix" value="/WEB-INF/jsp/"></property>
     	<property name="suffix" value=".jsp"></property> 
     </bean>
     
     
</beans>

4、 控制层 ItemController.java

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

@Controller
public class ItemController {

	//入门程序
	@RequestMapping(value ="/item/itemlist")
	public ModelAndView itemList() {		
		ModelAndView mav = new ModelAndView();
		mav.setViewName("itemList");
		return mav;		
	}	
}

5、视图层 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>

6、运行访问

http://localhost:8080/springMVC/item/itemlist（端口号因人而异）

标签：web,入门,SpringMVC,程序,springframework,item,itemList,ModelAndView,org
来源： https://blog.csdn.net/qq_45566354/article/details/112810831