spring springMVC mybatis_javaweb servlet

2022-11-09 15:49:50 浏览数 (1)

大家好，又见面了，我是你们的朋友全栈君。

资源下载：https://download.csdn.net/download/weixin_44893902/45601185

练习点设计：修改、删除

一、语言和环境

  1. 实现语言：JAVA语言。
  2. 环境要求：MyEclipse/Eclipse Tomcat MySql。
  3. 使用技术：Jsp Servlet JavaBean或SpringMVC Spring Mybatis。

二、实现功能

随着网上购物越来越多，电子订单也日益增多，特需要网上购物系统： 1.首页默认显示所有订单信息，如图所示。

2.正确显示订单状态和对应操作：1是已下单,操作为“发货和删除”;2是已发货，操作为“确认收获和删除”; 3是已收货，操作只有“删除”，如图所示。

图2 订单状态及对应操作 3.用户点击删除，则弹出提示框，用户点击确定后，删除选中数据并显示最新数据，如图所示。

4.用户点击“发货”操作链接,修改数据库中订单信息,且页面跳转到列表页面展示最新数据，如图所示。

5.用户点击“确定收货”操作链接,修改数据库中订单信息,且页面跳转到列表页面展示最新数据，如图所示。

三、具体要求及推荐实现步骤

  1. JSP版本的实现步骤如下： （1）按以上数据库要求建库、建表，并添加测试数据。 （2）创建Web工程并创建各个包，导入工程所需的jar文件。 （3）创建实体类。 （4）创建Servlet获取用户不同的请求，并将这些请求转发至业务处理层相应的业务方法。 （5）创建业务处理层，在其中定义业务方法实现系统需求，在这些业务方法中需要执行DAO方法。 （6）创建BaseDAO工具类，使用JDBC完成数据表数据的查询、删除和添加。 （7）编写JSP页面，展示数据的查询结果。
  2. SSM版本的实现步骤如下： （1）创建数据库和数据表，添加测试数据（至少添加5条测试数据）。 （2）创建Web工程并创建各个包，导入工程所需的jar文件。 （3）添加相关SSM框架支持。 （4）配置项目所需要的各种配置文件（mybatis配置文件、spring配置文件、springMVC配置文件）。 （5）创建实体类。 （6）创建MyBatis操作数据库所需的Mapper接口及其Xml映射数据库操作语句文件。 （7）创建业务逻辑相应的接口及其实现类，实现相应的业务，并在类中加入对DAO/Mapper的引用和注入。 （8）创建Controller控制器类，在Controller中添加对业务逻辑类的引用和注入，并配置springMVC配置文件。 （9）创建相关的操作页面，并使用CSS对页面进行美化。 （10）实现页面的各项操作功能，并在相关地方进行验证，操作要人性化。 （11）调试运行成功后导出相关的数据库文件并提交。

四、数据库设计

1.创建数据库（Shops）。 2.创建数据表（shop_db），结构如下。

代码语言：javascript复制
/* Date: 06/08/2021 19:33:22 */
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for tb_dever
-- ----------------------------
DROP TABLE IF EXISTS `tb_dever`;
CREATE TABLE `tb_dever`  (
`dev_id` int(11) NOT NULL AUTO_INCREMENT,
`dev_name` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`dev_level` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`dev_work_year` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`dev_in_year` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`dev_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 8 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of tb_dever
-- ----------------------------
INSERT INTO `tb_dever` VALUES (1, '张三', '高级', '40', '2021-08-02');
INSERT INTO `tb_dever` VALUES (2, '李四', '高级', '25', '2021-07-28');
INSERT INTO `tb_dever` VALUES (3, '王五', '中级', '40', '2020-11-13');
INSERT INTO `tb_dever` VALUES (4, '李梅', '高级', '35', '2021-05-12');
INSERT INTO `tb_dever` VALUES (5, '杨齐', '中级', '28', '2021-07-16');
SET FOREIGN_KEY_CHECKS = 1;

2、项目Java代码

目录结构 Shops

JAR包：

src

com.controller

ShopController.java

代码语言：javascript复制
package com.controller;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import com.entity.TbOrder;
import com.service.impl.ShopService;
@Controller
public class ShopController { 

@Resource
ShopService shoppService;
@RequestMapping("/selectAll")
// 查询所有订单
public String shooplist(Model model) { 

List<TbOrder> selectAll = shoppService.selectAll();
model.addAttribute("selectAll", selectAll);
return "/shopOrder";
}
// 订单由已下单1变为已发货2
@RequestMapping("/update1b2")
public String updateShopp1b2(int id) { 

int updateShop = shoppService.update1b2(id);
return "redirect:/selectAll.do";
}
// 订单由已发货2变为已收货3
@RequestMapping("/update2b3")
public String updateShopp2b3(int id) { 

int updateShop = shoppService.update2b3(id);
return "redirect:/selectAll.do";
}
// 删除订单
@RequestMapping("/del")
public String deleteShopp(int id) { 

int deldeteShopp = shoppService.del(id);
return "redirect:/selectAll.do";
}
}
com.dao

TbOrderMapper.java

代码语言：javascript复制
package com.dao;
import java.util.List;
import com.entity.TbOrder;
public interface TbOrderMapper { 

int deleteByPrimaryKey(Integer id);
int insert(TbOrder record);
TbOrder selectByPrimaryKey(Integer id);
List<TbOrder> selectAll();
int updateByPrimaryKey(TbOrder record);
int update1b2(int id);
int update2b3(int id);
}

TbOrderMapper.xml

代码语言：javascript复制
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.dao.TbOrderMapper">
<resultMap id="BaseResultMap" type="com.entity.TbOrder">
<id column="id" property="id" jdbcType="INTEGER" />
<result column="goodName" property="goodname" jdbcType="VARCHAR" />
<result column="goodPrice" property="goodprice" jdbcType="VARCHAR" />
<result column="count" property="count" jdbcType="INTEGER" />
<result column="total" property="total" jdbcType="VARCHAR" />
<result column="orderDate" property="orderdate" jdbcType="VARCHAR" />
<result column="userName" property="username" jdbcType="VARCHAR" />
<result column="state" property="state" jdbcType="VARCHAR" />
</resultMap>
<delete id="del" parameterType="java.lang.Integer">
delete from tb_order
where id = #{id,jdbcType=INTEGER}
</delete>
<insert id="insert" parameterType="com.entity.TbOrder">
insert into tb_order (id, goodName, goodPrice,
count, total, orderDate,
userName, state)
values (#{id,jdbcType=INTEGER}, #{goodname,jdbcType=VARCHAR},
#{goodprice,jdbcType=VARCHAR},
#{count,jdbcType=INTEGER}, #{total,jdbcType=VARCHAR}, #{orderdate,jdbcType=VARCHAR},
#{username,jdbcType=VARCHAR}, #{state,jdbcType=VARCHAR})
</insert>
<update id="updateByPrimaryKey" parameterType="com.entity.TbOrder">
update tb_order
set goodName = #{goodname,jdbcType=VARCHAR},
goodPrice = #{goodprice,jdbcType=VARCHAR},
count = #{count,jdbcType=INTEGER},
total = #{total,jdbcType=VARCHAR},
orderDate = #{orderdate,jdbcType=VARCHAR},
userName = #{username,jdbcType=VARCHAR},
state = #{state,jdbcType=VARCHAR}
where id = #{id,jdbcType=INTEGER}
</update>
<select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer">
select id, goodName, goodPrice, count, total, orderDate, userName, state
from tb_order
where id = #{id,jdbcType=INTEGER}
</select>
<select id="selectAll" resultMap="BaseResultMap">
select id, goodName, goodPrice, count, total, orderDate, userName, state
from tb_order
</select>
<update id="update1b2" parameterType="com.entity.TbOrder">
update tb_order
<trim prefix="set" suffixOverrides=",">
<if test="state=1">
state=2,
</if>
</trim>
where id = #{id,jdbcType=INTEGER}
</update>
<update id="update2b3" parameterType="com.entity.TbOrder">
update tb_order
<trim prefix="set" suffixOverrides=",">
<if test="state=2">
state=3,
</if>
</trim>
where id = #{id,jdbcType=INTEGER}
</update>
</mapper>
com.entity

TbOrder.java

代码语言：javascript复制
package com.entity;
public class TbOrder { 

private Integer id;
private String goodname;
private String goodprice;
private Integer count;
private String total;
private String orderdate;
private String username;
private String state;
public Integer getId() { 

return id;
}
public void setId(Integer id) { 

this.id = id;
}
public String getGoodname() { 

return goodname;
}
public void setGoodname(String goodname) { 

this.goodname = goodname == null ? null : goodname.trim();
}
public String getGoodprice() { 

return goodprice;
}
public void setGoodprice(String goodprice) { 

this.goodprice = goodprice == null ? null : goodprice.trim();
}
public Integer getCount() { 

return count;
}
public void setCount(Integer count) { 

this.count = count;
}
public String getTotal() { 

return total;
}
public void setTotal(String total) { 

this.total = total == null ? null : total.trim();
}
public String getOrderdate() { 

return orderdate;
}
public void setOrderdate(String orderdate) { 

this.orderdate = orderdate == null ? null : orderdate.trim();
}
public String getUsername() { 

return username;
}
public void setUsername(String username) { 

this.username = username == null ? null : username.trim();
}
public String getState() { 

return state;
}
public void setState(String state) { 

this.state = state == null ? null : state.trim();
}
}
com.service.impl

ShopService.java

代码语言：javascript复制
package com.service.impl;
import java.util.List;
import com.entity.TbOrder;
public interface ShopService { 

//查询所有
List<TbOrder> selectAll();
// 订单由已下单1变为已发货2
int update1b2(int id);
// 订单由已发货2变为已收货3
int update2b3(int id);
// 删除订单
int del(Integer id);
}

ShopServiceImpl.java

代码语言：javascript复制
package com.service.impl;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.dao.TbOrderMapper;
import com.entity.TbOrder;
@Service
public class ShopServiceImpl implements ShopService { 

@Resource
TbOrderMapper mapper;
// 查询所有订单
@Override
public List<TbOrder> selectAll() { 

List<TbOrder> listShopp=mapper.selectAll();
return listShopp;
}
// 删除订单
@Override
public int del(Integer id) { 

int deleteShoop=mapper.deleteByPrimaryKey(id);
return deleteShoop;
}
// 订单由已下单1变为已发货2
@Override
public int update1b2(int id) { 

int updateshopp=mapper.update1b2(id);
return updateshopp;
}
// 订单由已发货2变为已收货3
@Override
public int update2b3(int id) { 

int updateshopp1=mapper.update2b3(id);
return updateshopp1;
}
}
MyBatis

SqlMapConfig.xml

代码语言：javascript复制
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!-- 别名 -->
<typeAliases>
<package name="com.entity"/>
</typeAliases>
</configuration>
spring

applicationContext-dao.xml

代码语言：javascript复制
<?xml version="1.0" encoding="UTF-8"?>
<beans  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://www.springframework.org/schema/beans" 
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-4.2.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-4.2.xsd 
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-4.2.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-4.2.xsd 
http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd ">
<context:property-placeholder location="classpath:dataSource.properties"/>
<!-- 数据源配置 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${db.driverClass}"></property>
<property name="Url" value="${db.jdbcUrl}"></property>
<property name="username" value="${db.user}"></property>
<property name="password" value="${db.password}"></property>
</bean>
<!-- 配置SqlSessionFactory -->
<bean class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 设置MyBatis核心配置文件 -->
<property name="configLocation" value="classpath:MyBatis/SqlMapConfig.xml"></property>
<!-- 设置数据源 -->
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 配置Mapper扫描 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 设置Mapper扫描包 -->
<property name="basePackage" value="com.dao"></property>
</bean>	
</beans>

applicationContext-service.xml

代码语言：javascript复制
<?xml version="1.0" encoding="UTF-8"?>
<beans  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://www.springframework.org/schema/beans" 
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-4.2.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-4.2.xsd 
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-4.2.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-4.2.xsd 
http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd ">
<!-- 配置Service层扫描 -->
<context:component-scan base-package="com.service"></context:component-scan>	
<!-- 配置事务管理层 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 开启注解方式管理AOP事务 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

spring-mvc.xml

代码语言：javascript复制
<?xml version="1.0" encoding="UTF-8"?>
<beans  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://www.springframework.org/schema/beans" 
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-4.2.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-4.2.xsd 
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-4.2.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-4.2.xsd 
http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd ">
<!-- 配置Controller层扫描包 -->	
<context:component-scan base-package="com.controller"></context:component-scan>
<!-- 配置注解驱动 -->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name="prefix" value="/WEB-INF/jsp"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
dataSource.properties
代码语言：javascript复制
jdbc.url=jdbc:mysql://localhost:3306/shop_db?useUnicode=true&characterEncoding=UTF-8&useSSL=false
jdbc.username=root
jdbc.password=123456
jdbc.driver=com.mysql.jdbc.Driver

WebContent

web.xml

代码语言：javascript复制
<?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>com.ssm.one</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>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<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:spring/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>

JSP

index.jsp

代码语言：javascript复制
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<%
String path = request.getContextPath();
String basePath = request.getScheme() "://" request.getServerName() ":"
 request.getServerPort() path;
%>
<html>
<head>
<meta charset="utf-8">
<title>登录</title>
</head>
<body>
<script type="text/javascript"> window.location.href="<%=basePath%>/selectAll.do"; </script>
</body>
</html>

shopOrder.jsp

代码语言：javascript复制
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<head>
<meta charset="utf-8">
<title>网上购物系统</title>
<style type="text/css"> h2{ 
 position:relative; left:40%; } table{ 
 text-align: center; } .foot{ 
 margin-right: 100px; float: right; } tr:hover{ 
 background: #EEEEEE; } a{ 
 text-decoration: none; } p{ 
 text-align: right; } </style>
</head>
<body>
<h2>订单管理</h2>
<form action="shooplists.do" method="post">
<table width="100%" border="1px" cellpadding="3" cellspacing="0">
<tr style="background-color: #42B983;color:white">
<th width="80px">订单编号</th>
<th width="150px">商品名称</th>
<th width="150px">商品价格</th>
<th width="150px">购买数量</th>
<th width="150px">商品总价</th>
<th width="200px">下单时间</th>
<th width="150px">下单用户</th>
<th width="150px">订单状态</th>
<th width="200px">操作</th>
</tr>
<c:forEach var="list" items="${selectAll }" varStatus="item" >
<tr>
<td width="150px">${list.id}</td>
<td width="150px">${list.goodname}</td>
<td width="150px">${list.goodprice}</td>
<td width="150px">${list.count}</td>
<td width="150px">${list.total}</td>
<td width="150px">${list.orderdate}</td>
<td width="150px">${list.username}</td>
<td width="150px">
<c:if test="${list.state==1}">
已下单
</c:if>
<c:if test="${list.state==2}">
已发货
</c:if>
<c:if test="${list.state==3}">
已收货
</c:if>
</td>
<td width="160px">
<c:if test="${list.state==1}">
<a href="javascript:if(confirm('该订单确定发货吗?'))location='update1b2.do?id=${list.id}'">发货</a>
&nbsp; &nbsp; &nbsp; &nbsp;
<a href="javascript:if(confirm('确实要删除吗?'))location='del.do?id=${list.id}'">删除</a>
</c:if>
<c:if test="${list.state==2}">
<a href="javascript:if(confirm('确定收货吗?'))location='update2b3.do?id=${list.id}'">确认收货</a>
&nbsp; &nbsp; &nbsp; &nbsp;
<a href="javascript:if(confirm('确实要删除吗?'))location='del.do?id=${list.id}'">删除</a>
</c:if>
<c:if test="${list.state==3}">
<a href="javascript:if(confirm('确实要删除吗?'))location='del.do?id=${list.id}'">删除</a>
</c:if>
</td>
</tr>
</c:forEach>
</table>
</form>
</body>
</html>

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