springboot集成开发实现商场秒杀功能

springboot集成开发实现商场秒杀功能

springboot集成开发实现商场秒杀

加入主要依赖

org.springframework.boot

spring-boot-starter-thymeleaf

com.alibaba

druid

1.0.5

redis.clients

jedis

com.alibaba

fastjson

1.2.38

commons-codec

commons-codec

org.springframework.boot

spring-boot-starter-validation

org.springframework.boot

spring-boot-starter-amqp

com.google.guava

guava

19.0

秒杀项目主要目录构架

1.java目录

config 所有的配置信息

controller

exception 所有业务异常

mapper

service

rabbitmq

redis redis缓存

validator 后端校验

bean:数据传输层包括：mysql以及redis

util：工具包

dto:数据传输对象

秒杀系统逻辑

实现技术点

1.MD5

实现用户的密码为加密在保存到数据库之前

2.全局异常统一处理

通过拦截所有异常，对各种异常进行相应的处理

3.页面缓存

通过手动渲染的html页面缓存到redis中

WebContext ctx = new WebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap());

html = thymeleafViewResolver.getTemplateEngine().process("goods_detail", ctx);

4.解决了超买

application.properties配置

#thymeleaf

spring.thymeleaf.cache=false

spring.thymeleaf.check-template=true

spring.thymeleaf.check-template-location=true

spring.thymeleaf.servlet.content-type=text/html

spring.thymeleaf.enabled=true

spring.thymeleaf.encoding=utf-8

spring.thymeleaf.modehttp://=HTML5

spring.thymeleaf.prefix=classpath:/templates/

spring.thymeleaf.suffix=.html

# mybatis

mybatis.type-aliases-package=com.jesper.seckill.mapper

mybatis.configuration.map-underscore-to-camel-case=true

mybatis.configuration.default-fetch-size=100

mybatis.configuration.default-statement-timeout=3000

mybatis.mapperLocations = classpath:com/jesper/seckill/mapper/*.xml

# druid

spring.datasource.url=jdbc:mysql://localhost:3306/seckill?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&useSSL=false&serverTimezone=UTC

spring.datasource.username=root

spring.datasource.password=root

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

spring.datasource.filters=stat

spring.datasource.maxActive=1000

spring.datasource.initialSize=100

spring.datasource.maxWait=60000

spring.datasource.minIdle=500

spring.datasource.timeBetweenEvictionRunsMillis=60000

spring.datasource.minEvictableIdleTimeMillis=300000

spring.datasource.validationQuery=select 'x'

spring.datasource.testWhileIdle=true

spring.datasource.testOnBorrow=false

spring.datasource.testOnReturn=false

spring.datasource.poolPreparedStatements=true

spring.datasource.maxOpenPreparedStatements=20

#redis

redis.host=127.0.0.1

redis.port=6379

redis.timeout=10

redis.poolMaxTotal=1000

redis.poolMaxIdle=500

redis.poolMaxWait=500

#static

spring.resources.add-mappings=true

spring.resources.cache.period= 3600

spring.resources.chain.cache=true

spring.resources.chain.enabled=true

spring.resources.chain.compressed=true

spring.resources.chain.html-application-cache=true

spring.resources.static-locations=classpath:/static/

#rabbitmq

spring.rabbitmq.host=127.0.0.1

spring.rabbitmq.port=5672

spring.rabbitmq.username=guest

spring.rabbitmq.password=guest

spring.rabbitJnjHqmq.virtual-host=/

spring.rabbitmq.listener.simple.concurrency= 10

spring.rabbitmq.listener.simple.max-concurrency= 10

spring.rabbitmq.listener.simple.prefetch= 1

spring.rabbitmq.listener.simple.auto-startup=true

spring.rabbitmq.listener.simple.default-requeue-rejected= true

spring.rabbitmq.template.retry.enabled=true

spring.rabbitmq.template.retry.initial-interval=1000

spring.rabbitmq.template.retry.max-attempts=3

spring.rabbitmq.template.retry.max-interval=10000

spring.rabbitmq.template.retry.multiplier=1.0

总结

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