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springboot使用redis缓存开发模板

docker下的redis缓存,以及在springboot中的使用

最近项目业务中接受秒级实时数据时,要求每次更新接受时间,和超过10分钟没有接受到数据的设备,要停机

考虑到大量快速的修改和定向属性访问,使用mysql会非常影响性能,所以结合redis做缓存试试

性能还没有测试,先把docker的redis容器生成,和springboot使用redis的方法总结一下

docker下的redis缓存服务器

docker确实是非常厉害,这里不多做介绍,自行了解docker知识
首先在ubuntu下准备docker环境(我使用的ubuntu,所以其他环境的请准备其他的相关docker环境)
写Dockerfile如下:

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FROM jdk:8
MAINTAINER <clb7rowrain@gmail.com>
ENTRYPOINT ["java"]
RUN apt-get update
RUN apt-get -y install redis-server
EXPOSE 6379
ENTRYPOINT ["/usr/bin/redis-server"]

打镜像

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docker build -t test-redis:0.1 .

运行

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docker run -d  test-redis:0.1

访问测试:


报错(error) NOAUTH Authentication required.
解决:因为redis有密码,需要登陆密码
进入docker容器:
sudo docker exec -it 9f01 /bin/bash


修改redis.conf里面的requirepass yourpassword

再次尝试成功:

springboot中的配置

maven

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<!-- redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-redis</artifactId>
<version>1.4.0.RELEASE</version>
</dependency>
<!-- swagger -->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<exclusions>
<exclusion>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
</dependency>

主函数

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package com.k2data.k2app;
import lombok.extern.log4j.Log4j2;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@Log4j2
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
log.info("SpringBoot Start Success");
}
}

controller

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package com.k2data.k2app.controller;

import com.k2data.k2app.service.RedisService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

/**
* @Author cuilibo@k2data.com.cn
* @Date 17-12-27 下午2:57.
*/
@Api(description = "redis")
@RestController
@RequestMapping("/redis")
public class TestWebController {
@Autowired
private RedisService redisService;

@ApiOperation(value = "打印测试")
@GetMapping(value = "/echo")
public String echo() {
return "Hello init Docker!!!!!!!!!!!!!!!!!!!";
}
@ApiOperation(value = "获取key的value")
@ApiImplicitParams({
@ApiImplicitParam(name = "key", value = "key", required = true, dataType = "Long", paramType = "path")
})
@GetMapping(value = "/redis/get/{key}")
public String rGet(@PathVariable("key") String key) {
Object vString = redisService.get(key);
System.out.println("redisService:" + vString);
return "Redis Value:" + vString;
}
@ApiOperation(value = "设置key的value")
@ApiImplicitParams({
@ApiImplicitParam(name = "key", value = "key", required = true, dataType = "Long", paramType = "path"),
@ApiImplicitParam(name = "value", value = "value", required = true, dataType = "Long", paramType = "path")
})
@GetMapping(value = "/redis/set/{key}/{value}")
public String rSet(@PathVariable("key") String key, @PathVariable("value") String value) {
redisService.set(key, value);
System.out.println("redisService: SET OK");
return "Redis Value: SET OK key:" + key + ",value:" + value;
}
}

service

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package com.k2data.k2app.service;

import com.k2data.k2app.util.RedisUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
* @Author cuilibo@k2data.com.cn
* @Date 17-12-27 下午2:58.
*/
@Service
public class RedisService {
@Autowired
private RedisUtils redisUtils;

public Object get(String key) {
return redisUtils.getValue(key);
}

public void set(String key, String value) {
redisUtils.setValue(key, value);
}
}

RedisUtils

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package com.k2data.k2app.util;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.*;
import org.springframework.stereotype.Component;

import java.io.Serializable;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;

/**
* @Author cuilibo@k2data.com.cn
* @Date 17-12-27 下午2:58.
*/
@Component
public class RedisUtils {
@Autowired
private RedisTemplate redisTemplate;

public void setValue(String key, String value) {
redisTemplate.opsForValue().set(key, value);
}

public Object getValue(String key) {
return redisTemplate.opsForValue().get(key);
}
/**
* 写入缓存
* @param key
* @param value
* @return
*/
public boolean set(final String key, Object value) {
boolean result = false;
try {
ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
operations.set(key, value);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 写入缓存设置时效时间
* @param key
* @param value
* @return
*/
public boolean set(final String key, Object value, Long expireTime) {
boolean result = false;
try {
ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
operations.set(key, value);
redisTemplate.expire(key, expireTime, TimeUnit.SECONDS);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 批量删除对应的value
* @param keys
*/
public void remove(final String... keys) {
for (String key : keys) {
remove(key);
}
}

/**
* 批量删除key
* @param pattern
*/
public void removePattern(final String pattern) {
Set<Serializable> keys = redisTemplate.keys(pattern);
if (keys.size() > 0)
redisTemplate.delete(keys);
}
/**
* 删除对应的value
* @param key
*/
public void remove(final String key) {
if (exists(key)) {
redisTemplate.delete(key);
}
}
/**
* 判断缓存中是否有对应的value
* @param key
* @return
*/
public boolean exists(final String key) {
return redisTemplate.hasKey(key);
}
/**
* 读取缓存
* @param key
* @return
*/
public Object get(final String key) {
Object result = null;
ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
result = operations.get(key);
return result;
}
/**
* 哈希 添加
* @param key
* @param hashKey
* @param value
*/
public void hmSet(String key, Object hashKey, Object value){
HashOperations<String, Object, Object> hash = redisTemplate.opsForHash();
hash.put(key,hashKey,value);
}

/**
* 哈希获取数据
* @param key
* @param hashKey
* @return
*/
public Object hmGet(String key, Object hashKey){
HashOperations<String, Object, Object> hash = redisTemplate.opsForHash();
return hash.get(key,hashKey);
}

/**
* 列表添加
* @param k
* @param v
*/
public void lPush(String k,Object v){
ListOperations<String, Object> list = redisTemplate.opsForList();
list.rightPush(k,v);
}

/**
* 列表获取
* @param k
* @param l
* @param l1
* @return
*/
public List<Object> lRange(String k, long l, long l1){
ListOperations<String, Object> list = redisTemplate.opsForList();
return list.range(k,l,l1);
}

/**
* 集合添加
* @param key
* @param value
*/
public void add(String key,Object value){
SetOperations<String, Object> set = redisTemplate.opsForSet();
set.add(key,value);
}

/**
* 集合获取
* @param key
* @return
*/
public Set<Object> setMembers(String key){
SetOperations<String, Object> set = redisTemplate.opsForSet();
return set.members(key);
}

/**
* 有序集合添加
* @param key
* @param value
* @param scoure
*/
public void zAdd(String key,Object value,double scoure){
ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
zset.add(key,value,scoure);
}

/**
* 有序集合获取
* @param key
* @param scoure
* @param scoure1
* @return
*/
public Set<Object> rangeByScore(String key,double scoure,double scoure1){
ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
return zset.rangeByScore(key, scoure, scoure1);
}
}

RedisConfig

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package com.k2data.k2app;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

import java.lang.reflect.Method;

/**
* @Author cuilibo@k2data.com.cn
* @Date 17-12-27 下午3:04.
*/

@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {
/**
* 生成key的策略
* @return
*/
@Override
@Bean
public KeyGenerator keyGenerator() {
return new KeyGenerator() {
@Override
public Object generate(Object target, Method method, Object... params) {
StringBuilder sb = new StringBuilder();
sb.append(target.getClass().getName());
sb.append(method.getName());
for (Object obj : params) {
sb.append(obj.toString());
}
return sb.toString();
}
};
}

/**
* 管理缓存
*/
@Bean
public CacheManager cacheManager(RedisTemplate redisTemplate) {
RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
return rcm;
}

/**
* RedisTemplate配置
*/
@Bean
public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
StringRedisTemplate template = new StringRedisTemplate(factory);
Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
ObjectMapper om = new ObjectMapper();
om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(om);
template.setValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
}

配置文件

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spring:
redis:
database: 0
host: localhost
port: 6379
password: foobared

访问:
http://localhost:8189/swagger-ui.html#


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