在学完ssm之后,觉得自己需要一个项目来练练手,巩固一些学到的知识,不然也容易忘记。就选择了大二开学参加软件设计大赛的项目(基于校园形式的报修系统)进行一些重构,用ssm框架重新搭建一下后台的代码。我现在只重构了我的部分,还需要我的队友重构完他的部分,就会将项目放上github。
主要应用技术:mybatis、spring、springmvc、mysql、ajax,maven
这个是最初软件设计大赛时的项目简介(当初是主要用servlet搭建的)
在这里插入图片描述
一、项目的搭建目录
<span><img src="https://img-blog.csdnimg.cn/20190531103119371.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc5OTAxOQ==,size_16,color_FFFFFF,t_70" height="500px"></span>
<font color="red">总结:采用了传统的按层分包的模式:Controller、Service、Repository、tools(工具类)、common(通用类)、filter(过滤器类)</font>
二、pom.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.gduf</groupId>
<artifactId>GuaranteeSystem</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>GuaranteeSystem Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<!--junit测试-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!--SpringMvc、Spring-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>
<!--Spring JDBC-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>
<!--Spring面向切面编程-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>
<!--mybatis-->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.6</version>
</dependency>
<!--mybatis整合spring的适配包-->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.2</version>
</dependency>
<!--数据库连接池、驱动-->
<!-- https://mvnrepository.com/artifact/c3p0/c3p0 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>LATEST</version>
</dependency>
<!--json数据转换器需要的依赖-->
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>RELEASE</version>
</dependency>
<!--短信验证码需要的jsonObject-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.4</version>
</dependency>
<!--json的token-->
<!-- https://mvnrepository.com/artifact/com.googlecode.jsontoken/jsontoken -->
<dependency>
<groupId>com.googlecode.jsontoken</groupId>
<artifactId>jsontoken</artifactId>
<version>1.1</version>
</dependency>
<!--引入JWT依赖,由于是基于Java,所以需要的是java-jwt-->
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.9.1</version>
</dependency>
<dependency>
<groupId>com.auth0</groupId>
<artifactId>java-jwt</artifactId>
<version>3.4.0</version>
</dependency>
<!--Base64算法-->
<!-- https://mvnrepository.com/artifact/net.iharder/base64 -->
<dependency>
<groupId>net.iharder</groupId>
<artifactId>base64</artifactId>
<version>2.3.8</version>
</dependency>
<!--joda Time-->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.9.7</version>
</dependency>
<!--WebListener注解-->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-servlet-api</artifactId>
<version>7.0.62</version>
</dependency>
<!--分页插件 PageHelper-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>LATEST</version>
</dependency>
<!--上传文件-->
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
</dependencies>
<build>
<finalName>GuaranteeSystem</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
<font color="red">总结:需要添加的依赖主要有以下几个:
- junit测试
- SpringMvc、Spring
- SpringJDBC
- Spring面向切面变成Aspect
- mybatis
- mybatis整合spring的适配包
- 数据库连接池、驱动
- json转换器
- 分页插件-PageHelper
三、web.xml文件
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<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>Archetype Created Web Application</display-name>
<!--Spring配置-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!--配置ContextLoaderListener用以初始化SpringIoc容器-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--SpringMvc核心配置-->
<servlet>
<servlet-name>spring-mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring-mvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--字符编码过滤器,一定要放在过滤器之前-->
<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>
<init-param>
<param-name>forceRequestEncoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>foreResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--使用Restful风格的Url,将页面普通的get请求或者post请求转换成delete或push请求-->
<filter>
<filter-name>hiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>hiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
<font color="red">总结:web.xml配置文件主要有以下几个配置项:
- Spring配置
- ContextLoaderListener配置(用以初始化SpringIoc容器)
- SpringMvc核心配置
- 字符编码过滤器
- Restful风格配置(如有需要)
四、SpringMvc配置文件(spring-mvc-servlet.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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/cache"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">
<!--使用注解驱动-->
<mvc:annotation-driven></mvc:annotation-driven>
<!--定义扫描装载的包-->
<context:component-scan base-package="com.ssm.code"></context:component-scan>
<!--视图解析器-->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/html/"></property>
<property name="suffix" value=".html"></property>
</bean>
<!--静态资源过滤-->
<mvc:resources mapping="/html/**" location="/html/"></mvc:resources>
<mvc:resources mapping="/js/**" location="/js/"></mvc:resources>
<mvc:resources mapping="/css/**" location="/css/"></mvc:resources>
<mvc:resources mapping="/imgs/**" location="/imgs/"></mvc:resources>
<mvc:resources mapping="/iconfont/**" location="/iconfont/"></mvc:resources>
<mvc:resources mapping="/iconfont2/**" location="/iconfont2/"></mvc:resources>
<mvc:resources mapping="/scripts/**" location="/scripts/"></mvc:resources>
</beans>
<font color="red">总结:SpringMvc配置文件主要有以下几个配置项:
- 使用注解驱动
- 扫描要装载的包
- 视图解析器
- 静态资源的过滤
五、Spring配置文件(applicationContext.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"
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/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--注解扫描-->
<context:annotation-config></context:annotation-config>
<!--包扫描-->
<context:component-scan base-package="com.ssm.code">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:exclude-filter>
</context:component-scan>
<!--数据源配置-->
<bean class="com.mchange.v2.c3p0.ComboPooledDataSource" id="dataSource" destroy-method="close">
<property name="user" value="root"></property>
<property name="password" value="XHHP0913"></property>
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/guaranteesystem?serverTimezone=UTC"></property>
</bean>
<!--整合mybatis-->
<bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactory">
<property name="dataSource" ref="dataSource"></property>
<!--指定mybatis全局配置文件-->
<property name="configLocation" value="classpath:/mybatis-config.xml"></property>
</bean>
<!--采用自动扫描方式,将mybatis的接口扫描到容器中-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ssm.code.dao"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
<property name="annotationClass" value="org.springframework.stereotype.Repository"></property>
</bean>
<!--事物管理器配置数据源事物-->
<bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="dataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--使用注解定义事物-->
<tx:annotation-driven transaction-manager="dataSourceTransactionManager"></tx:annotation-driven>
<!--配置数据库事务-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--配置json消息转换器-->
<bean id="jsonConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json;charset=utf-8</value>
</list>
</property>
</bean>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="jsonConverter"></ref>
</list>
</property>
</bean>
</beans>
<font color="red">总结:Spring配置文件主要有以下几个配置项:
- 注解扫描
- 包扫描
- 数据源配置
- 整合mybatis
- 采用自动扫描方式,将mybatis的接口扫描到容器中
- 事务管理器配置数据源事物
- 使用注解定义事物
- 配置json消息转换器
六、Mybatis总配置文件(mybatis-config.xml)
<?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>
<!--配置分页插件-->
<plugins>
<plugin interceptor="com.github.pagehelper.PageInterceptor">
<property name="helperDialect" value="mysql"></property>
</plugin>
</plugins>
<mappers>
<!--注册功能-->
<mapper resource="/mapper/RegisterMapper.xml"></mapper>
<!--学生登录功能-->
<mapper resource="/mapper/StudentLoginMapper.xml"></mapper>
<!--服务信息获取-->
<mapper resource="/mapper/NoticeInformMapper.xml"></mapper>
<!--数据分析-->
<mapper resource="/mapper/AnalyzeDataMapper.xml"></mapper>
<!--商品购买-->
<mapper resource="/mapper/CommidityMapper.xml"></mapper>
<!--个人信息功能-->
<mapper resource="/mapper/PersonInformMapper.xml"></mapper>
<!--工人端登录-->
<mapper resource="/mapper/WorkerLoginMapper.xml"></mapper>
<!--管理端登录-->
<mapper resource="/mapper/ManagerLoginMapper.xml"></mapper>
<!--报修评价-->
<mapper resource="/mapper/ScoreMapper.xml"></mapper>
</mappers>
</configuration>
七、数据库文件(建表语句)
/*
Navicat MySQL Data Transfer
Source Server : InformationSystem
Source Server Version : 80012
Source Host : localhost:3306
Source Database : guaranteesystem
Target Server Type : MYSQL
Target Server Version : 80012
File Encoding : 65001
Date: 2019-05-31 11:09:31
*/
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for admin
-- ----------------------------
DROP TABLE IF EXISTS `admin`;
CREATE TABLE `admin` (
`a_id` varchar(11) NOT NULL,
`a_phone` varchar(11) DEFAULT NULL,
`a_password` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`a_major` int(11) DEFAULT NULL,
PRIMARY KEY (`a_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for admin_chat
-- ----------------------------
DROP TABLE IF EXISTS `admin_chat`;
CREATE TABLE `admin_chat` (
`username` varchar(255) DEFAULT NULL,
`roomid` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
PRIMARY KEY (`roomid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for area
-- ----------------------------
DROP TABLE IF EXISTS `area`;
CREATE TABLE `area` (
`id` int(11) NOT NULL,
`name` varchar(10) NOT NULL,
`code` int(11) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for build
-- ----------------------------
DROP TABLE IF EXISTS `build`;
CREATE TABLE `build` (
`id` int(11) NOT NULL,
`building` varchar(20) DEFAULT NULL,
`code` int(11) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for commidity
-- ----------------------------
DROP TABLE IF EXISTS `commidity`;
CREATE TABLE `commidity` (
`commidity_id` varchar(20) DEFAULT NULL,
`name` varchar(100) DEFAULT NULL,
`description` varchar(255) DEFAULT NULL,
`price` double(10,2) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for evaluateform
-- ----------------------------
DROP TABLE IF EXISTS `evaluateform`;
CREATE TABLE `evaluateform` (
`e_ordernumber` int(11) NOT NULL AUTO_INCREMENT,
`s_id` varchar(11) DEFAULT NULL,
`r_ordernumber` int(11) DEFAULT NULL,
`e_level` int(11) DEFAULT NULL,
`e_mess` varchar(255) DEFAULT NULL,
PRIMARY KEY (`e_ordernumber`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for noticeinform
-- ----------------------------
DROP TABLE IF EXISTS `noticeinform`;
CREATE TABLE `noticeinform` (
`UpLoader` varchar(255) NOT NULL,
`FilePath` varchar(255) NOT NULL,
`FileName` varchar(255) NOT NULL,
`DownLoadNum` int(11) NOT NULL,
`UpLoadDate` varchar(255) NOT NULL,
PRIMARY KEY (`FilePath`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for repairform
-- ----------------------------
DROP TABLE IF EXISTS `repairform`;
CREATE TABLE `repairform` (
`r_ordernumber` int(11) NOT NULL AUTO_INCREMENT,
`r_sertype` int(11) NOT NULL,
`r_seradd` varchar(50) DEFAULT NULL,
`r_serinform` varchar(70) DEFAULT NULL,
`r_sertime` varchar(30) DEFAULT NULL,
`r_detailtime` varchar(30) DEFAULT NULL,
`r_judgestate` int(11) DEFAULT NULL,
`r_filepath` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`s_id` varchar(11) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`s_phone` varchar(11) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`a_id` varchar(11) DEFAULT NULL,
`r_userconfirm` int(11) DEFAULT '0',
`r_submittime` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL COMMENT '维修人员确定维修单完成',
PRIMARY KEY (`r_ordernumber`)
) ENGINE=InnoDB AUTO_INCREMENT=218 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for score
-- ----------------------------
DROP TABLE IF EXISTS `score`;
CREATE TABLE `score` (
`r_ordernumber` int(11) NOT NULL,
`satisfied` varchar(20) DEFAULT NULL,
`suggest` varchar(255) DEFAULT NULL,
`score` int(11) DEFAULT NULL,
`flag` int(5) DEFAULT '0',
`repairman` varchar(50) DEFAULT NULL,
`username` varchar(20) DEFAULT NULL,
`time` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for student
-- ----------------------------
DROP TABLE IF EXISTS `student`;
CREATE TABLE `student` (
`stu_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`phone` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`password` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`area` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`build` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`room` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`sex` int(255) DEFAULT NULL,
`timestamp` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
PRIMARY KEY (`stu_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for studentpurchase
-- ----------------------------
DROP TABLE IF EXISTS `studentpurchase`;
CREATE TABLE `studentpurchase` (
`stu_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`commidity_id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`quantity` int(11) DEFAULT NULL,
`commidity_name` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`price` double(10,2) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for student_chat
-- ----------------------------
DROP TABLE IF EXISTS `student_chat`;
CREATE TABLE `student_chat` (
`username` varchar(255) DEFAULT NULL,
`roomid` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`num` int(11) NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`num`)
) ENGINE=InnoDB AUTO_INCREMENT=266 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Table structure for worker
-- ----------------------------
DROP TABLE IF EXISTS `worker`;
CREATE TABLE `worker` (
`worker_id` varchar(20) NOT NULL,
`worker_password` varchar(50) NOT NULL,
`ser_type` varchar(10) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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