contrller层的编码设设计流程以及详细配置

/** 实际开发中遵循一个规律：自己写的类使用注解，系统提供的类使用配置文件

1、书写controller类-----》配置springmvc.xml-------->配置web.xml-------->创建Webapp/WEB-INF/pages/itemDetail.jsp页面

**/

package com.hope.controller;

import com.hope.domain.Items;
import com.hope.service.ItemsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * @author newcityman
 * @date 2019/12/4 - 23:13
 */
@Controller
@RequestMapping("/items")
public class ItemsController {
 @Autowired
 private ItemsService itemsService;
 @RequestMapping("/findDetail")
 public String findDetail(Model model){
 Items item = itemsService.findById(1);
 model.addAttribute("item",item);
 return "itemDetail";
 }
}

<?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:aop="http://www.springframework.org/schema/aop"
 xmlns:tx="http://www.springframework.org/schema/tx"
 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/aop
 http://www.springframework.org/schema/aop/spring-aop.xsd
 http://www.springframework.org/schema/tx
 http://www.springframework.org/schema/tx/spring-tx.xsd
 http://www.springframework.org/schema/mvc
 http://www.springframework.org/schema/mvc/spring-mvc.xsd">

 <!--组件扫描-->
 <context:component-scan base-package="com.hope.controller"/>

 <!--处理器映射器、处理器适配器-->
 <mvc:annotation-driven/>

 <!--配置视图解析器-->
 <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
 <property name="prefix" value="/WEB-INF/pages/"/>
 <property name="suffix" value=".jsp"/>
 </bean>

 <!--释放静态资源-->
 <mvc:default-servlet-handler/>
</beans>

<?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:aop="http://www.springframework.org/schema/aop"
 xmlns:tx="http://www.springframework.org/schema/tx"
 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/aop
 http://www.springframework.org/schema/aop/spring-aop.xsd
 http://www.springframework.org/schema/tx
 http://www.springframework.org/schema/tx/spring-tx.xsd
 http://www.springframework.org/schema/mvc
 http://www.springframework.org/schema/mvc/spring-mvc.xsd">

 <!--组件扫描-->
 <context:component-scan base-package="com.hope.controller"/>

 <!--处理器映射器、处理器适配器-->
 <mvc:annotation-driven/>

 <!--配置视图解析器-->
 <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
 <property name="prefix" value="/WEB-INF/pages/"/>
 <property name="suffix" value=".jsp"/>
 </bean>

 <!--释放静态资源-->
 <mvc:default-servlet-handler/>

</beans>

<%@ 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>Insert title here</title>
</head>
<body> 
 <form>
 <table width="100%" border=1>
 <tr>
 <td>商品名称</td>
 <td> ${item.name } </td>
 </tr>
 <tr>
 <td>商品价格</td>
 <td> ${item.price } </td>
 </tr>
 <tr>
 <td>生成日期</td>
 <td> <fmt:formatDate value="${item.createtime}" pattern="yyyy-MM-dd HH:mm:ss"/> </td>
 </tr>
 <tr>
 <td>商品简介</td>
 <td>${item.detail} </td>
 </tr>
 </table>
 </form>
</body>
</html>

contrller层的编码设设计流程以及详细配置

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