springboot集成开发实现商场秒杀
加入主要依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <!-- alibaba的druid数据库连接池 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.5</version> </dependency> <!-- redis客服端--> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.38</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-validation</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> </dependency> <dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>19.0</version>
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.mode=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.rabbitmq.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
————————————————