一、Springmvc入門程式
阿新 • • 發佈：2018-11-04
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./* 攔截所有 jsp js png .css 真的全攔截，不建議使用
2.*.action *.do 攔截以do action 結尾的請求，肯定能使用
3./ 攔截所有(不包括jsp) 包含.js .png .css 強烈建議使用， 前臺，面向消費者 /對靜態資源放行
-->
<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">
<!-- 掃描@Controller @Service -->
<context:component-scan base-package="com.itheima"></context:component-scan>
<!-- 處理器對映器 -->
<!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean> -->
<!-- 處理器介面卡 -->
<!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean> -->
<!-- 註解驅動 -->
<mvc:annotation-driven />
<!-- 檢視解析器 -->
<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 {
//入門程式 第一
@RequestMapping(value="/item/itemList.action")
public ModelAndView itemList(){
// 建立頁面需要顯示的商品資料
List<Items> list = new ArrayList<Items>();
list.add(new Items(1, "1華為 榮耀8", 2399f, new Date(), "質量好！1"));
list.add(new Items(2, "2華為 榮耀8", 2399f, new Date(), "質量好！2"));
list.add(new Items(3, "3華為 榮耀8", 2399f, new Date(), "質量好！3"));
list.add(new Items(4, "4華為 榮耀8", 2399f, new Date(), "質量好！4"));
list.add(new Items(5, "5華為 榮耀8", 2399f, new Date(), "質量好！5"));
list.add(new Items(6, "6華為 榮耀8", 2399f, new Date(), "質量好！6"));
ModelAndView mv = new ModelAndView();
//新增資料
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>查詢商品列表</title>
</head>
<body>
<form action="${pageContext.request.contextPath }/item/queryitem.action" method="post">
查詢條件：
<table width="100%" border=1>
<tr>
<td><input type="submit" value="查詢"/></td>
</tr>
</table>
商品列表：
<table width="100%" border=1>
<tr>
<td>商品名稱</td>
<td>商品價格</td>
<td>生產日期</td>
<td>商品描述</td>
<td>操作</td>
</tr>
<c:forEach items="${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>