2019独角兽企业重金招聘Python工程师标准>>>
项目需要使用Redis来做缓存,研究了一下如何将其与Spring Boot整合。网上的demo要么就是太过于庞大,要么就是版本过于陈旧,配置时候会有各种坑。因此自己在踩过了各种坑之后,写一个小demo来记录下:
1.项目结构:
2.pom的依赖配置:
本人使用的Spring Boot是2.0.4.RELEASE版本的:
<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.4.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent>
添加redis的依赖:
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId></dependency>
添加common-pool2的依赖:
<dependency><groupId>org.apache.commons</groupId><artifactId>commons-pool2</artifactId><version>2.0</version></dependency>
我在这里尝试过不加version,让springboot自己选择最合适的版本,结果会报错。参考别人的例子,选择2.0版本,没有问题。
3.修改application.yml:
这里的host填写自己redis的IP,timeout别设置为0,否则运行会报错。
redis 单机配置
spring:redis:host: port: 6379lettuce:pool:max-wait: 100000max-idle: 10max-active: 100timeout: 5000
redis 集群配置
redis:database: 0# 集群设置 begincluster:nodes:- 10.217.17.70:7000- 10.217.17.74:7000- 10.217.17.75:7000max-redirects: 3 # 获取失败 最大重定向次数#集群设置 end#单节点 begin
# host: 10.217.17.74
# port: 7000#单节点 endlettuce:pool:max-wait: 100000max-idle: 10max-active: 100timeout: 5000
3.编写dao层 :
package com.hg.redis;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Repository;import java.util.concurrent.TimeUnit;/*** @Description:* @Author: jiangfan* @CreateTime 2018/9/27 上午10:14*/
@Repository
public class RedisDao {@Autowiredprivate StringRedisTemplate template;public void setKey(String key, String value) {ValueOperations<String, String> ops = template.opsForValue();ops.set(key, value);}public String getValue(String key) {ValueOperations<String, String> ops = this.template.opsForValue();return ops.get(key);}
}
4.修改测试启动类:
package com.hg.redis;import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;@RunWith(SpringRunner.class)
@SpringBootTest
public class RedisApplicationTests {@Testpublic void contextLoads() {}}
5.编写一个测试类:
package com.hg.redis;import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;/*** @Description:* @Author: jiangfan* @CreateTime 2018/9/27 上午10:26*/
@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringbootRedisApplicationTests {public static Logger logger = LoggerFactory.getLogger(SpringbootRedisApplicationTests.class);@Testpublic void contextLoads(){}@AutowiredRedisDao redisDao;@Testpublic void testRedis() {redisDao.setKey("name","jerry");redisDao.setKey("age","11");logger.info(redisDao.getValue("name"));logger.info(redisDao.getValue("age"));}
}
6.运行测试类: