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‎jsDeliver‎

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Subproject commit 39046118d3b811ccef64cb39532c61c6d0abbc9c
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Subproject commit 962ed2e64926fffe23cc13c8306d415611b99d90

‎seckill/.gitignore‎

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HELP.md
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target/
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!.mvn/wrapper/maven-wrapper.jar
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!**/src/main/**/target/
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!**/src/test/**/target/
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### STS ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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### IntelliJ IDEA ###
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.idea
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*.iws
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*.iml
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*.ipr
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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build/
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!**/src/main/**/build/
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!**/src/test/**/build/
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### VS Code ###
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.vscode/
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/.mvn/

‎seckill/README.md‎

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# 高并发秒杀项目
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## 项目流程
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1. 项目框架搭建
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1. SpringBoot环境搭建
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2. 集成Thymeleaf,RespBean
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3. MyBatis
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2. 分布式会话
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1. 用户登录
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1. 设计数据库
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2. 明文密码二次MD5加密
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3. 参数校验+全局异常处理
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2. 共享Session
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1. SpringSession
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2. Redis
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3. 功能开发
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1. 商品列表
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2. 商品详情
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3. 秒杀
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4. 订单详情
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4. 系统压测
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1. JMeter
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2. 自定义变量模拟多用户
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3. JMeter命令行的使用
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4. 正式压测
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1. 商品列表
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2. 秒杀
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5. 页面优化
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1. 页面缓存+URL缓存+对象缓存
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2. 页面静态化，前后端分离
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3. 静态资源优化
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4. CDN优化
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6. 接口优化
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1. Redis预减库存减少数据库的访问
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2. 内存标记减少Redis的访问
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3. RabbitMQ异步下单
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1. SpringBoot整合RabbitMQ
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2. 交换机
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7. 安全优化
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1. 秒杀接口地址隐藏
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2. 算术验证码
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3. 接口防刷
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8. 主流的秒杀方案
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## 软件架构
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| 技术 | 版本 | 说明 |
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| :---------------------------------------------------: | :---: | :--------------------------------------------------------: |
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| Spring Boot | 2.6.4 | |
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| MySQL | 8 | |
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| [MyBatis Plus](https://github.com/baomidou/generator) | 3.5.1 | |
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| Swagger2 | 2.9.2 | Swagger-models2.9.2版本报错，使用的是1.5.22 |
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| [Kinfe4j](https://doc.xiaominfo.com) | 2.0.9 | 感觉比Swagger UI漂亮的一个工具，访问地址是ip:端口/doc.html |
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| Spring Boot Redis | | |
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## 使用说明
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登录页面：http://localhost:8080/login/toLogin
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接口文档页面：http://localhost:8080/doc.html#/home
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代码生成器：https://gitee.com/guizhizhe/code-generator.git
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sqldoc：创建表语句和回滚压测数据
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sftware：是从B站用户@登就等觉得 下载的一些视频中程序的安装包（我没有使用，我是用的是docker里面）
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document：是从B站用户@登就等觉得 下载的系统说明文档，如果根据视频看的话，可以看文档里面，里面的代码是根据视频进度编写的，但是不要复制，pdf会有问题建议手打。
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## 注意事项
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1. 代码运行时一定要用localhost，原因可以看下CookieUtil类
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2. 代码生成时没有加去掉表头，导致代码和视频中不一样，命名也有的不一样，
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‎seckill/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.6.5</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<groupId>com.</groupId>
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<artifactId>seckill</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<properties>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-thymeleaf</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<!-- md5 依赖 -->
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<dependency>
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<groupId>commons-codec</groupId>
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<artifactId>commons-codec</artifactId>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>3.6</version>
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</dependency>
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>com.baomidou</groupId>
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<artifactId>mybatis-plus-boot-starter</artifactId>
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<version>3.5.1</version>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<optional>true</optional>
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</dependency>
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<!-- AMQP依赖 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-amqp</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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<!-- validation组件 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-validation</artifactId>
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</dependency>
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<!-- spring data redis 依赖 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-redis</artifactId>
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</dependency>
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<!-- commons-pool2 对象池依赖 -->
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-pool2</artifactId>
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</dependency>
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<!-- spring-session 依赖 -->
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<!--<dependency>-->
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<!--<groupId>org.springframework.session</groupId>-->
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<!--<artifactId>spring-session-data-redis</artifactId>-->
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<!--</dependency>-->
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<configuration>
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<excludes>
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<exclude>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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</exclude>
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</excludes>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎seckill/sqldoc/创建t_user.sql‎

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CREATE TABLE t_user(
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`id` BIGINT(20) NOT NULL COMMENT '用户ID,手机号码',
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`nickname` VARCHAR(255) not NULL,
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`password` VARCHAR(32) DEFAULT NULL COMMENT 'MD5(MD5(pass明文+固定salt)+salt)',
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`salt` VARCHAR(10) DEFAULT NULL,
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`head` VARCHAR(128) DEFAULT NULL COMMENT '头像',
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`register_date` datetime DEFAULT NULL COMMENT '注册时间',
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`last_login_date` datetime DEFAULT NULL COMMENT '最后一次登录事件',
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`login_count` int(11) DEFAULT '0' COMMENT '登录次数',
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PRIMARY KEY(`id`)
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)
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COMMENT '用户表';
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------------------------------------------------
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CREATE TABLE t_goods(
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id BIGINT(20) not NULL AuTO_increment COMMENT '商品ID',
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goods_name VARCHAR(16) DEFAULT NULL COMMENT '商品名称',
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goods_title VARCHAR(64) DEFAULT NULL COMMENT '商品标题',
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goods_img VARCHAR(64) DEFAULT NULL COMMENT '商品图片',
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goods_detail LONGTEXT COMMENT '商品详情',
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goods_price DECIMAL(10,2) DEFAULT '0.00' COMMENT '商品价格',
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goods_stock INT(11) DEFAULT '0' COMMENT '商品库存，-1表示没有限制',
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PRIMARY KEY(id)
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)
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COMMENT '商品表';
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------------------------------------------------
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CREATE TABLE `t_order` (
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`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '订单ID',
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`user_id` BIGINT(20) DEFAULT NULL COMMENT '用户ID',
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`goods_id` BIGINT(20) DEFAULT NULL COMMENT '商品ID',
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`delivery_addr_id` BIGINT(20) DEFAULT NULL COMMENT '收获地址ID',
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`goods_name` VARCHAR(16) DEFAULT NULL COMMENT '商品名字',
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`goods_count` INT(20) DEFAULT '0' COMMENT '商品数量',
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`goods_price` DECIMAL(10,2) DEFAULT '0.00' COMMENT '商品价格',
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`order_channel` TINYINT(4) DEFAULT '0' COMMENT '1 pc,2 android, 3 ios',
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`status` TINYINT(4) DEFAULT '0' COMMENT '订单状态，0新建未支付，1已支付，2已发货，3已收货，4已退货，5已完成',
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`create_date` datetime DEFAULT NULL COMMENT '订单创建时间',
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`pay_date` datetime DEFAULT NULL COMMENT '支付时间',
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PRIMARY KEY(`id`)
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)ENGINE = INNODB AUTO_INCREMENT=12 DEFAULT CHARSET = utf8mb4;
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COMMENT '订单表'
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;
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------------------------------------------------
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CREATE TABLE `t_seckill_goods`(
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`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '秒杀商品ID',
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`goods_id` BIGINT(20) NOT NULL COMMENT '商品ID',
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`seckill_price` DECIMAL(10,2) NOT NULL COMMENT '秒杀家',
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`stock_count` INT(10) NOT NULL COMMENT '库存数量',
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`start_date` datetime NOT NULL COMMENT '秒杀开始时间',
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`end_date` datetime NOT NULL COMMENT '秒杀结束时间',
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PRIMARY KEY(`id`)
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)ENGINE = INNODB AUTO_INCREMENT=3 DEFAULT CHARSET = utf8mb4
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COMMENT '秒杀商品表'
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;
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------------------------------------------------
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CREATE TABLE `t_seckill_order` (
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`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '秒杀订单ID',
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`user_id` BIGINT(20) NOT NULL COMMENT '用户ID',
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`order_id` BIGINT(20) NOT NULL COMMENT '订单ID',
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`goods_id` BIGINT(20) NOT NULL COMMENT '商品ID',
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PRIMARY KEY(`id`)
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)ENGINE = INNODB AUTO_INCREMENT=3 DEFAULT CHARSET = utf8mb4
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COMMENT '秒杀订单表'
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;
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------------------------------------------------
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-- 添加索引，讲到时在加
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ALTER TABLE `seckill`.`t_seckill_order`
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ADD UNIQUE INDEX `seckill_uid_gid`(user_id, goods_id) USING BTREE COMMENT '用户ID+商品ID成为唯一索引，';
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------------------------------------------------
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------------------------------------------------
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------------------------------------------------
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------------------------------------------------
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------------------------------------------------
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------------------------------------------------

‎seckill/sqldoc/回滚压测数据.sql‎

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-- 删除订单表
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DELETE FROM t_order;
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DELETE FROM t_seckill_order;
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-- 回复订单商品表
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UPDATE t_seckill_goods SET stock_count=10;
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SELECT * FROM t_seckill_order;
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SELECT * FROM t_order;
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SELECT * FROM t_seckill_goods;

‎seckill/src/main/java/com/SeckillApplication.java‎

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package com;
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import org.mybatis.spring.annotation.MapperScan;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.stereotype.Component;
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@SpringBootApplication
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@MapperScan("com.mapper")
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public class SeckillApplication {
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public static void main(String[] args) {
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SpringApplication.run(SeckillApplication.class, args);
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}
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}

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