1.pom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>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.huinongtx</groupId>
<artifactId>springcache</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springcache</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-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>19.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<!-- spring boot 配置 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.5</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.20</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</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>
</plugins>
</build>
</project>
2.application.properties属性配置文件
spring.redis.host=localhost
spring.redis.port=6379
spring.redis.password=
spring.redis.lettuce.pool.max-active=7
spring.redis.lettuce.pool.max-idle=7
spring.redis.lettuce.pool.min-idle=2
spring.redis.lettuce.pool.max-wait=-1ms
spring.redis.lettuce.shutdown-timeout=200ms
spring.cache.redis.cache-null-values=false
spring.cache.redis.time-to-live=600000
spring.cache.redis.use-key-prefix=true
spring.cache.type=redis
spring.datasource.url=jdbc:mysql://localhost:3306/test?serverTimezone=UTC&characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.hikari.connection-timeout=20000
spring.datasource.hikari.minimum-idle=5
spring.datasource.hikari.maximum-pool-size=12
spring.datasource.hikari.idle-timeout=300000
spring.datasource.hikari.max-lifetime=1200000
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQLDialect
spring.jpa.properties.hibernate.id.new_generator_mappings=false
spring.jpa.properties.hibernate.format_sql=true
3.RedisConfig类
包名：com.huinongtx.springcache.config
类名：RedisConfig
类内容：
package com.huinongtx.springcache.config;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisPassword;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import java.time.Duration;
/**
* Created by dengdashuai on 2018/12/17.
*/
@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {
@Autowired
private Environment environment;
@Bean
public LettuceConnectionFactory redisConnectionFactory(){
RedisStandaloneConfiguration redisConf = new RedisStandaloneConfiguration();
redisConf.setHostName(environment.getProperty("spring.redis.host"));
redisConf.setPort(Integer.parseInt(environment.getProperty("spring.redis.port")));
redisConf.setPassword(RedisPassword.of(environment.getProperty("spring.redis.password")));
return new LettuceConnectionFactory(redisConf);
}
@Bean
public RedisCacheConfiguration cacheConfiguration(){
RedisCacheConfiguration cacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
.entryTtl(Duration.ofSeconds(600))
.disableCachingNullValues();
return cacheConfiguration;
}
@Bean
public RedisCacheManager cacheManager(){
RedisCacheManager redisCacheManager = RedisCacheManager.builder(redisConnectionFactory())
.cacheDefaults(cacheConfiguration())
.transactionAware()
.build();
return redisCacheManager;
}
}
4.实体类定义
包名：com.huinongtx.springcache.domain;
类名：Article
类内容：
package com.huinongtx.springcache.domain;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import javax.persistence.*;
import java.io.Serializable;
/**
* Created by dengdashuai on 2018/12/18.
*/
@Entity
@Table(name="articles")
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Article implements Serializable{
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="article_id")
private long articleId;
@Column(name="title")
private String title;
@Column(name="category")
private String category;
}
5.持久层repository接口
包名：com.huinongtx.springcache.repository
接口名：ArticleRepository
接口内容：
package com.huinongtx.springcache.repository;
import com.huinongtx.springcache.domain.Article;
import org.springframework.data.repository.CrudRepository;
/**
* Created by dengdashuai on 2018/12/18.
*/
public interface ArticleRepository extends CrudRepository<Article,Long> {
}
6.业务层service接口
包名：
接口名：
接口内容：
package com.huinongtx.springcache.service;
import com.huinongtx.springcache.domain.Article;
import java.util.List;
/**
* Created by dengdashuai on 2018/12/18.
*/
public interface IArticleService {
List<Article> getAllArticles();
Article getArticleById(long articleId);
Article addArticle(Article article);
Article updateArticle(Article article);
void deleteArticle(long articleId);
}
7.业务层service接口的实现类
包名：com.huinongtx.springcache.service.impl;
类名：ArticleService
类内容：
package com.huinongtx.springcache.service.impl;
import com.huinongtx.springcache.domain.Article;
import com.huinongtx.springcache.repository.ArticleRepository;
import com.huinongtx.springcache.service.IArticleService;
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.cache.annotation.Caching;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.List;
/**
* Created by dengdashuai on 2018/12/18.
*/
@Service
public class ArticleService implements IArticleService {
@Autowired
private ArticleRepository articleRepository;
@Override
@Cacheable(value= "allArticlesCache", unless= "#result.size() == 0")
public List<Article> getAllArticles() {
System.out.println("--- Inside getAllArticles() ---");
List<Article> list = new ArrayList<>();
articleRepository.findAll().forEach(e -> list.add(e));
return list;
}
@Override
@Cacheable(value= "articleCache", key= "#articleId")
public Article getArticleById(long articleId) {
System.out.println("--- Inside getArticleById() ---");
return articleRepository.findById(articleId).get();
}
@Override
@Caching(
put= { @CachePut(value= "articleCache", key= "#article.articleId") },
evict= { @CacheEvict(value= "allArticlesCache", allEntries= true) }
)
public Article addArticle(Article article) {
System.out.println("--- Inside addArticle() ---");
return articleRepository.save(article);
}
@Override
@Caching(
put= { @CachePut(value= "articleCache", key= "#article.articleId") },
evict= { @CacheEvict(value= "allArticlesCache", allEntries= true) }
)
public Article updateArticle(Article article) {
System.out.println("--- Inside updateArticle() ---");
return articleRepository.save(article);
}
@Override
@Caching(
evict= {
@CacheEvict(value= "articleCache", key= "#articleId"),
@CacheEvict(value= "allArticlesCache", allEntries= true)
}
)
public void deleteArticle(long articleId) {
System.out.println("--- Inside deleteArticle() ---");
articleRepository.delete(articleRepository.findById(articleId).get());
}
}
8.控制器
包名：com.huinongtx.springcache.controller
类名：ArticleController
类内容：
package com.huinongtx.springcache.controller;
import com.huinongtx.springcache.domain.Article;
import com.huinongtx.springcache.service.IArticleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.util.UriComponentsBuilder;
import java.util.List;
/**
* Created by dengdashuai on 2018/12/18.
*/
@RestController
@RequestMapping("user")
public class ArticleController {
@Autowired
private IArticleService articleService;
@GetMapping("article/{id}")
public ResponseEntity<Article> getArticleById(@PathVariable("id") Long id) {
Article article = articleService.getArticleById(id);
return new ResponseEntity<Article>(article, HttpStatus.OK);
}
@GetMapping("articles")
public ResponseEntity<List<Article>> getAllArticles() {
List<Article> list = articleService.getAllArticles();
return new ResponseEntity<List<Article>>(list, HttpStatus.OK);
}
@PostMapping("article")
public ResponseEntity<Void> addArticle(@RequestBody Article article, UriComponentsBuilder builder) {
Article savedArticle = articleService.addArticle(article);
HttpHeaders headers = new HttpHeaders();
headers.setLocation(builder.path("/article/{id}").buildAndExpand(savedArticle.getArticleId()).toUri());
return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
}
@PutMapping("article")
public ResponseEntity<Article> updateArticle(@RequestBody Article article) {
articleService.updateArticle(article);
return new ResponseEntity<Article>(article, HttpStatus.OK);
}
@DeleteMapping("article/{id}")
public ResponseEntity<Void> deleteArticle(@PathVariable("id") Long id) {
articleService.deleteArticle(id);
return new ResponseEntity<Void>(HttpStatus.NO_CONTENT);
}
}
