一 搭建项目,代码工程结构
使用idea或者sts构建springboot项目
二 数据库sql语句
SQLyog Ultimate v12.08 (64 bit) MySQL - 5.7.14-log ********************************************************************* */ /*!40101 SET NAMES utf8 */; create table `person` ( `id` int (11), `name` varchar (60), `age` int (11), `address` varchar (300) ); insert into `person` (`id`, `name`, `age`, `address`) values('1','feinik1','26','广州'); insert into `person` (`id`, `name`, `age`, `address`) values('2','feinik2','25','北京'); insert into `person` (`id`, `name`, `age`, `address`) values('3','feinik3','24','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('4','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('5','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('6','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('7','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('8','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('9','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('10','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('11','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('12','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('13','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('14','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('15','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('16','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('17','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('18','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('19','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('20','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('21','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('22','zhongguo','1','上海'); insert into `person` (`id`, `name`, `age`, `address`) values('23','zhongguo','1','上海');
三 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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.cxy</groupId> <artifactId>springbootredis</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springbootredis</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.0.0</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-redis</artifactId> <version>1.4.7.RELEASE</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.41</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.5</version> <dependencies> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.5</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.41</version> </dependency> </dependencies> <executions> <execution> <id>mybatis generator</id> <phase>package</phase> <goals> <goal>generate</goal> </goals> </execution> </executions> <configuration> <!--允许移动生产的文件--> <verbose>true</verbose> <!--允许自动覆盖文件,在开发者不可以设置为true--> <overwrite>true</overwrite> <!--制定生产文件的位置--> <configurationFile> src/main/resources/mybatis_generator.xml </configurationFile> </configuration> </plugin> </plugins> </build> </project>
四 mybatis-gengerator的xml文件
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd" > <generatorConfiguration> <!--驱动包的路径--> <!--<classPathEntry location="F:maven eposmysqlmysql-connector-java5.1.34mysql-connector-java-5.1.34.jar"/>--> <context id="DB2Tables" targetRuntime="MyBatis3"> <!--注释--> <commentGenerator> <property name="suppressAllComments" value="true"/> <property name="suppressDate" value="true"/> </commentGenerator> <!--数据库连接--> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1:3306/fr_db?zeroDateTimeBehavior=convertToNull& autoReconnect=true&useUnicode=true&characterEncoding=utf-8" userId="root" password="1234"/> <javaTypeResolver> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <!--生成Model类存放位置--> <javaModelGenerator targetPackage="com.cxy.dataObject" targetProject="src/main/java"> <!--是否对model添加构造函数--> <property name="constructorBased" value="false"/> <!--是否允许子包--> <property name="enableSubPackages" value="true"/> <!--建立的model对象是否不可变，也就是生成的model没有setter方法--> <property name="immutable" value="false"/> <property name="trimStrings" value="false"/> </javaModelGenerator> <!--生成映射文件存放位置--> <sqlMapGenerator targetPackage="mapping" targetProject="src/main/resources"> <property name="enableSubPackages" value="true"/> </sqlMapGenerator> <!--生成Mapper类存放位置--> <javaClientGenerator type="XMLMAPPER" targetPackage="com.cxy.dao" targetProject="src/main/java"> <property name="enableSubPackages" value="true"/> </javaClientGenerator> <!--生成与表对应的类名--> <table tableName="person" domainObjectName="PersonDo" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false" enableUpdateByExample="false" selectByExampleQueryId="false"></table> </context> </generatorConfiguration>
五代码生成
添加如图命令,然后执行,
或者参考springboot整合ssm和druid篇介绍
六 redis配置
package com.cxy.config; import com.fasterxml.jackson.annotation.JsonAutoDetect; import com.fasterxml.jackson.annotation.PropertyAccessor; import com.fasterxml.jackson.databind.ObjectMapper; import org.springframework.cache.annotation.EnableCaching; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.data.redis.connection.RedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer; import org.springframework.data.redis.serializer.StringRedisSerializer; @EnableCaching @Configuration public class RedisConfig { @Bean public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) { RedisTemplate<Object, Object> template = new RedisTemplate<>(); template.setConnectionFactory(connectionFactory); //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值 Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class); ObjectMapper mapper = new ObjectMapper(); mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL); serializer.setObjectMapper(mapper); template.setValueSerializer(serializer); //使用StringRedisSerializer来序列化和反序列化redis的key值 template.setKeySerializer(new StringRedisSerializer()); template.afterPropertiesSet(); return template; } }
七application.properties文件
## 数据源配置 spring.datasource.url=jdbc:mysql://localhost:3306/fr_db?useUnicode=true&characterEncoding=utf8&useSSL=true spring.datasource.username=root spring.datasource.password=1234 spring.datasource.driver-class-name=com.mysql.jdbc.Driver ## Mybatis 配置 mybatis.typeAliasesPackage=org.spring.springboot.domain mybatis.mapperLocations=classpath:mapping/*.xml ## Redis 配置 ## Redis数据库索引（默认为0） spring.redis.database=0 ## Redis服务器地址 spring.redis.host=127.0.0.1 ## Redis服务器连接端口 spring.redis.port=6379 ## Redis服务器连接密码（默认为空） spring.redis.password= ## 连接池最大连接数（使用负值表示没有限制） spring.redis.pool.max-active=8 ## 连接池最大阻塞等待时间（使用负值表示没有限制） spring.redis.pool.max-wait=-1 ## 连接池中的最大空闲连接 spring.redis.pool.max-idle=8 ## 连接池中的最小空闲连接 spring.redis.pool.min-idle=0 ## 连接超时时间（毫秒） spring.redis.timeout=0
八service.dao.controller代码
dao层:
package com.cxy.dao; import com.cxy.dataObject.PersonDo; import javax.validation.constraints.Size; import java.util.List; public interface PersonDoMapper { int deleteByPrimaryKey(Integer id); int insert(PersonDo record); int insertSelective(PersonDo record); PersonDo selectByPrimaryKey(Integer id); int updateByPrimaryKeySelective(PersonDo record); int updateByPrimaryKey(PersonDo record); List<PersonDo> selectAllPerson(); }
service层,接口在这里就不直接粘贴了
package com.cxy.service.impl; import ch.qos.logback.core.net.SyslogOutputStream; import com.cxy.dao.PersonDoMapper; import com.cxy.dataObject.PersonDo; import com.cxy.service.PersonService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.cache.annotation.CacheEvict; import org.springframework.cache.annotation.CachePut; import org.springframework.cache.annotation.Cacheable; import org.springframework.stereotype.Service; @Service public class PersonServiceImpl implements PersonService { @Autowired private PersonDoMapper personDoMapper; @Cacheable(value = "person", key = "#id") @Override public PersonDo selectPersonByPrimaryKey(Integer id) { System.out.println("查询数据库"); return personDoMapper.selectByPrimaryKey(id); } @CacheEvict(value = "person", key = "#personDo.id") @Override public Integer updatePersonByPrimaryKey(PersonDo personDo) { return personDoMapper.updateByPrimaryKey(personDo); } @CacheEvict(value = "person", key = "#id") @Override public Integer deletePersonByPrimaryKey(Integer id) { return personDoMapper.deleteByPrimaryKey(id); } @CachePut(value = "person", key = "#personDo.id") @Override public Integer savePersonDo(PersonDo personDo) { return personDoMapper.insert(personDo); } }
controller层:
package com.cxy.controller; import com.cxy.dataObject.PersonDo; import com.cxy.service.PersonService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; @RestController @RequestMapping("/person") public class PersonController { @Autowired private PersonService personService; @RequestMapping(value = "/{id}",method = RequestMethod.GET) public PersonDo selectPersonByPrimaryKey(@PathVariable Integer id){ return personService.selectPersonByPrimaryKey(id); } @RequestMapping(method = RequestMethod.PUT) public Integer updatePersonByPrimaryKey(@RequestBody PersonDo personDo){ return personService.updatePersonByPrimaryKey(personDo); } @RequestMapping(value = "/{id}",method = RequestMethod.DELETE) public Integer updatePersonByPrimaryKey(@PathVariable Integer id){ return personService.deletePersonByPrimaryKey(id); } @RequestMapping(method = RequestMethod.POST) public Integer savePerson(@RequestBody PersonDo personDo){ return personService.savePersonDo(personDo); } }
九启动
package com.cxy; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @MapperScan("com.cxy.dao") public class SpringbootredisApplication { public static void main(String[] args) { SpringApplication.run(SpringbootredisApplication.class, args); } }
十运行查询:
控制台输出:
第一次不走缓存,直接查询数据库,第二次走缓存