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This commit is contained in:
qiurunze
parent
145eb2d1d1
commit
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@ -108,6 +29,7 @@
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@ -302,7 +234,7 @@
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@ -516,6 +449,13 @@
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287
readme.txt
287
readme.txt
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@ -1,234 +1,101 @@
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|||
1.springboot quick start
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||||
https://projects.spring.io/spring-boot/
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https://docs.spring.io/spring-boot/docs/1.5.8.RELEASE/reference/htmlsingle/
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||||
Springboot 秒杀设计：
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||||
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||||
一： springboot 环境搭建
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① 集成thymleaf + result 结果封装
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② 集成Mybatis + Druid
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③ 集成 Jedis + redis + 通用key封装
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||||
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||||
二： 登录设计
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||||
① 数据库设计
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||||
② 明文密码二次md5加密 + 全局异常处理器
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||||
③ JRS303参数检验 + 全局异常处理器
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||||
④分布式session
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||||
三：实现秒杀功能
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||||
① 秒杀数据库设计
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||||
② 商品列表页设计
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||||
③ 商品详情页设计
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||||
④ 订单详情页
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||||
四 ： 压测jmeter
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||||
① jmeter压测入门
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||||
② 自定义变量与用户测试
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||||
③ 页面优化技术
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||||
五：缓存优化提高效率
|
||||
① 页面优化+ url缓存+对象缓存
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||||
② 页面静态化
|
||||
③ 静态资源
|
||||
④ cdn优化
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||||
六：接口优化
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||||
① redis预减少库存访问
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||||
② 内存标记减少redis访问
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||||
③ rabbitmq安装与springboot集成
|
||||
④rabbitmq异步下单
|
||||
⑤ 访问Nginx水平扩展
|
||||
七： 安全优化
|
||||
|
||||
① 秒杀地址隐藏
|
||||
② 数学公式验证码
|
||||
③ 接口防刷限流
|
||||
|
||||
|
||||
如何应对互联网大并发 ， 如何利用缓存， 如何使用异步 ， 如何编写优雅的代码
|
||||
|
||||
一： springboot 环境搭建 （springmvc会有大量的配置）
|
||||
|
||||
1. 新建project -- maven -- 选择 maven-archtype-quickstart 项目
|
||||
2.pom.xml文件
|
||||
主要的 springboot的pom文件 項目直接导入就可以
|
||||
<parent>
|
||||
<groupId>org.springframework.boot</groupId>
|
||||
<artifactId>spring-boot-starter-parent</artifactId>
|
||||
<version>1.5.8.RELEASE</version>
|
||||
<version>1.5.9.RELEASE</version>
|
||||
</parent>
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>org.springframework.boot</groupId>
|
||||
<artifactId>spring-boot-starter-web</artifactId>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
3.<2E><EFBFBD>pom<6F><6D><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
4.<2E><><EFBFBD><EFBFBD>Ŀ¼<C4BF>ṹ<EFBFBD><E1B9B9>controller<65><72>service<63><65>dao
|
||||
|
||||
5.<2E><><EFBFBD><EFBFBD>MainApplication DemoController
|
||||
@SpringBootApplication
|
||||
public class MainApplication {
|
||||
|
||||
public static void main(String[] args) throws Exception {
|
||||
SpringApplication.run(MainApplication.class, args);
|
||||
}
|
||||
}
|
||||
|
||||
6. /hello/api <20>ӿ<EFBFBD>
|
||||
|
||||
7.<2E><><EFBFBD><EFBFBD>Result
|
||||
|
||||
8.<2E><><EFBFBD><EFBFBD>CodeMsg
|
||||
|
||||
9.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> http://localhost:8080/demo/hello/api
|
||||
|
||||
10.<2E><><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thymeleaf
|
||||
<dependency>
|
||||
<groupId>org.springframework.boot</groupId>
|
||||
<artifactId>spring-boot-starter-thymeleaf</artifactId>
|
||||
</dependency>
|
||||
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>application.properties
|
||||
spring.thymeleaf.prefix=classpath:/templates/
|
||||
spring.thymeleaf.suffix=.html
|
||||
ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD>治<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ո<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ģ<EFBFBD><C4A3>
|
||||
|
||||
11./hello<6C>ӿ<EFBFBD> template/hello.html
|
||||
<!DOCTYPE HTML>
|
||||
<html xmlns:th="http://www.thymeleaf.org">
|
||||
<head>
|
||||
<title>hello</title>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
|
||||
</head>
|
||||
<body>
|
||||
<p th:text="'hello:'+${name}" ></p>
|
||||
</body>
|
||||
</html>
|
||||
类的构思讲解：
|
||||
Result类：
|
||||
结果类Result 类封装成一个通用类，用一个codemsg错误码来直接返回，不需要每次返回再去new一个对象，按照模块来定义错误码
|
||||
|
||||
12.<2E><><EFBFBD><EFBFBD>mybatis
|
||||
http://www.mybatis.org/spring-boot-starter/mybatis-spring-boot-autoconfigure/
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
<dependency>
|
||||
<groupId>org.mybatis.spring.boot</groupId>
|
||||
<artifactId>mybatis-spring-boot-starter</artifactId>
|
||||
<version>1.3.1</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>mysql</groupId>
|
||||
<artifactId>mysql-connector-java</artifactId>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.alibaba</groupId>
|
||||
<artifactId>druid</artifactId>
|
||||
<version>1.0.5</version>
|
||||
</dependency>
|
||||
Redis类：
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>druid
|
||||
#mybatis
|
||||
mybatis.type-aliases-package=com.imooc.miaosha.domain
|
||||
mybatis.mapperLocations = classpath:com/imooc/miaosha/dao/*.xml
|
||||
mybatis.configuration.map-underscore-to-camel-case=true
|
||||
#datasource
|
||||
spring.datasource.url=jdbc:mysql://10.110.3.62:3333/miaosha?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&useSSL=false
|
||||
spring.datasource.username=root
|
||||
spring.datasource.password=123456
|
||||
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
|
||||
#druid
|
||||
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
|
||||
spring.datasource.filters=stat
|
||||
spring.datasource.maxActive=2
|
||||
spring.datasource.initialSize=1
|
||||
spring.datasource.maxWait=60000
|
||||
spring.datasource.minIdle=1
|
||||
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
|
||||
自己封装的 jedis ,使用它自带的temple总觉得不好使 ， key的定义保证不重复 生成 set--get--exist......方法自己可以添加
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>config<EFBFBD><EFBFBD>
|
||||
public class DruidConfig {
|
||||
private String url;
|
||||
private String username;
|
||||
private String password;
|
||||
private String driverClassName;
|
||||
private String type;
|
||||
private String filters;
|
||||
private int maxActive;
|
||||
private int initialSize;
|
||||
private int minIdle;
|
||||
private long maxWait;
|
||||
private long timeBetweenEvictionRunsMillis;
|
||||
private long minEvictableIdleTimeMillis;
|
||||
private String validationQuery;
|
||||
private boolean testWhileIdle;
|
||||
private boolean testOnBorrow;
|
||||
private boolean testOnReturn;
|
||||
private boolean poolPreparedStatements;
|
||||
private int maxOpenPreparedStatements;
|
||||
密码 --MD5 二次明文加密处理 设计
|
||||
|
||||
密码设计： MD5（MD5（pass明文 + 固定salt） + salt） 处理
|
||||
|
||||
二次MD5：
|
||||
|
||||
用户端： PASS = MD5 (明文 + 固定 Salt)
|
||||
|
||||
服务端： PASS = MD5(用户输入 + 随机Salt)
|
||||
|
||||
Js 前端进行第一个MD5 ， 后端进行第二次 ， 后端第二次salt随机生成入库，然后登录时取出对比
|
||||
===============
|
||||
注解JSR303与 自定义注解来完成手机号和登录验证，防刷限流等功能
|
||||
|
||||
分布式session ：
|
||||
登录成功之后给用户生成一个类似于sessionid的东西 token 标识用户写到cookie当中传递给客户端，客户端在随后的访问中都在cookie中上传这个token ， 然后在服务端拿到这个token来取到用户信息！！
|
||||
|
||||
把token uuid标识 存到 redis缓存中 ，设置过期时间，然后别的页面访问的时候依旧根据这个cookie token的值拿到用户信息。
|
||||
|
||||
接口防刷限流：
|
||||
|
||||
如果有缓存的话 这个功能实现起来就和简单，在一个用户访问接口的时候我们把访问次数写到缓存中，在加上一个有效期。
|
||||
通过拦截器. 做一个注解 @AccessLimit 然后封装这个注解，可以有效的设置每次访问多少次，有效时间是否需要登录！
|
||||
|
||||
数据库采用mybatis：
|
||||
|
||||
@Bean
|
||||
public DataSource druidDataSource() {
|
||||
DruidDataSource datasource = new DruidDataSource();
|
||||
datasource.setUrl(url);
|
||||
datasource.setUsername(username);
|
||||
datasource.setPassword(password);
|
||||
datasource.setDriverClassName(driverClassName);
|
||||
datasource.setInitialSize(initialSize);
|
||||
datasource.setMinIdle(minIdle);
|
||||
datasource.setMaxActive(maxActive);
|
||||
datasource.setMaxWait(maxWait);
|
||||
datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
|
||||
datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
|
||||
datasource.setValidationQuery(validationQuery);
|
||||
datasource.setTestWhileIdle(testWhileIdle);
|
||||
datasource.setTestOnBorrow(testOnBorrow);
|
||||
datasource.setTestOnReturn(testOnReturn);
|
||||
datasource.setPoolPreparedStatements(poolPreparedStatements);
|
||||
datasource.setMaxOpenPreparedStatements(maxOpenPreparedStatements);
|
||||
try {
|
||||
datasource.setFilters(filters);
|
||||
} catch (SQLException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
return datasource;
|
||||
}
|
||||
}
|
||||
|
||||
@Bean
|
||||
public ServletRegistrationBean druidStatServlet() {
|
||||
ServletRegistrationBean reg = new ServletRegistrationBean();
|
||||
reg.setServlet(new StatViewServlet());
|
||||
reg.addUrlMappings("/druid/*");
|
||||
reg.addInitParameter("loginUsername", "caAdmin");
|
||||
reg.addInitParameter("loginPassword", "caPass123");
|
||||
reg.addInitParameter("logSlowSql", "true");
|
||||
reg.addInitParameter("slowSqlMillis", "1000");
|
||||
return reg;
|
||||
}
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>mysql-connctor<6F><72>druid<69><64><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD>User<EFBFBD><EFBFBD>Service<EFBFBD><EFBFBD>Dao<EFBFBD><EFBFBD>Domain
|
||||
CREATE TABLE `user` (
|
||||
`id` int(11) NOT NULL,
|
||||
`name` varchar(24) DEFAULT NULL,
|
||||
PRIMARY KEY (`id`)
|
||||
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
|
||||
|
||||
@Selectע<74><D7A2>
|
||||
|
||||
xml:
|
||||
<!DOCTYPE mapper
|
||||
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
|
||||
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
|
||||
<mapper namespace="UserDao">
|
||||
</mapper>
|
||||
|
||||
<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>getById
|
||||
<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>tx @Transactional <20><>ʾ
|
||||
|
||||
13.<2E><><EFBFBD><EFBFBD>redis
|
||||
<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>װredis
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>redis<EFBFBD><EFBFBD>װ<EFBFBD>ļ<EFBFBD> http://redis.io/ redis-4.0.2.tar.gz
|
||||
tar -zvxf redis-4.0.2.tar.gz
|
||||
cd redis-4.0.2
|
||||
make
|
||||
make install
|
||||
src/redis-server & //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
src/redis-cli //<2F>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
util/install_server.sh <20><>װ<EFBFBD><D7B0>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD>
|
||||
chkconfig <20>C-list | grep redis <20>鿴<EFBFBD>Ƿ<C7B7><F1BFAABB><EFBFBD><EFBFBD><EFBFBD>
|
||||
(2)<29><><EFBFBD><EFBFBD>
|
||||
daemonize
|
||||
bind
|
||||
requirepass
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>jedis<EFBFBD><EFBFBD>fastjson<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
<dependency>
|
||||
<groupId>redis.clients</groupId>
|
||||
<artifactId>jedis</artifactId>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.alibaba</groupId>
|
||||
<artifactId>fastjson</artifactId>
|
||||
<version>1.2.38</version>
|
||||
</dependency>
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
|
||||
#redis
|
||||
redis.host=10.110.3.62
|
||||
redis.port=6379
|
||||
redis.timeout=3
|
||||
redis.password=123456
|
||||
redis.poolMaxTotal=10
|
||||
redis.poolMaxIdle=10
|
||||
redis.poolMaxWait=3
|
||||
java<EFBFBD><EFBFBD>
|
||||
@ConfigurationProperties(prefix="redis")
|
||||
@Component
|
||||
public class RedisConfig {
|
||||
private String host;
|
||||
private int port;
|
||||
private int timeout;//<2F><>
|
||||
private String password;
|
||||
private int poolMaxTotal;
|
||||
private int poolMaxIdle;
|
||||
private int poolMaxWait;//<2F><>
|
||||
}
|
||||
<EFBFBD><EFBFBD>дRedisSerive KeyPrefix BaseKey
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user