Hello你們好,本章咱們添加redis緩存功能 。有問題能夠聯繫我mr_beany@163.com。另求各路大神指點,感謝
因本人電腦是windows系統,從https://github.com/ServiceStack/redis-windows下載了兼容windows系統的redis
java
下載後直接解壓到自定義目錄,運行cmd命令,進入到這個文件夾,在這個文件夾下運行下面命令,啓動redis服務器
git
redis-server redis.windows.conf
github
運行下面命令進行測試: redis-cli
web
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-redis</artifactId>
<version>1.4.5.RELEASE</version>
</dependency>複製代碼
而後鼠標右鍵選擇Maven→Reimport進行依賴下載
redis
在application.properties
中添加
spring
spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.timeout=0
spring.redis.password=複製代碼
package com.example.demo.core.configurer;
import org.springframework.boot.context.properties.ConfigurationProperties;
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.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import redis.clients.jedis.JedisPoolConfig;
/**
* @author 張瑤
* @Description: redis配置
* @date 2018/4/30 10:28
*/
@Configuration
@EnableCaching //開啓緩存
public class RedisConfigurer extends CachingConfigurerSupport {
@Bean
@ConfigurationProperties(prefix="spring.redis")
public JedisPoolConfig getRedisConfig(){
JedisPoolConfig config = new JedisPoolConfig();
return config;
}
@Bean
@ConfigurationProperties(prefix="spring.redis")
public JedisConnectionFactory getConnectionFactory(){
JedisConnectionFactory factory = new JedisConnectionFactory();
JedisPoolConfig config = getRedisConfig();
factory.setPoolConfig(config);
return factory;
}
@Bean
public RedisTemplate<?, ?> getRedisTemplate(){
RedisTemplate<?,?> template = new StringRedisTemplate(getConnectionFactory());
return template;
}
}複製代碼
RedisServicejson
package com.example.demo.service;
import java.util.List;
/**
* @author 張瑤
* @Description: redis經常使用方法
* @date 2018/4/30 10:35
*/
public interface RedisService {
/**
* 設置給定 key 的值。若是 key 已經存儲其餘值, SET 就覆寫舊值,且無視類型。
* @param key
* @param value
* @return
*/
boolean set(String key, String value);
/**
* 獲取指定 key 的值。若是 key 不存在,返回 nil 。若是key 儲存的值不是字符串類型,返回一個錯誤。
* @param key
* @return
*/
String get(String key);
/**
* 設置 key 的過時時間。key 過時後將再也不可用。
* @param key
* @param expire
* @return
*/
boolean expire(String key, long expire);
/**
* 存集合
* @param key
* @param list
* @param <T>
* @return
*/
<T> boolean setList(String key, List<T> list);
/**
* 取集合
* @param key
* @param clz
* @param <T>
* @return
*/
<T> List<T> getList(String key, Class<T> clz);
/**
* 將一個或多個值插入到列表頭部。 若是 key 不存在,一個空列表會被建立並執行 LPUSH 操做。
* 當 key 存在但不是列表類型時,返回一個錯誤。
* @param key
* @param obj
* @return
*/
long lpush(String key, Object obj);
/**
* 將一個或多個值插入到列表的尾部(最右邊)。
* 若是列表不存在,一個空列表會被建立並執行 RPUSH 操做。 當列表存在但不是列表類型時,返回一個錯誤。
* @param key
* @param obj
* @return
*/
long rpush(String key, Object obj);
/**
* 移除並返回列表的第一個元素。
* @param key
* @return
*/
String lpop(String key);
/**
* 刪除已存在的鍵。不存在的 key 會被忽略。
* @param key
* @return
*/
long del(final String key);
}
複製代碼
RedisServiceImpl
windows
package com.example.demo.service.impl;
import com.alibaba.fastjson.JSON;
import com.example.demo.service.RedisService;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;
/**
* @author 張瑤
* @Description: redis配置
* @date 2018/4/30 10:38
*/
@Service
public class RedisServiceImpl implements RedisService {
@Resource
private RedisTemplate<String, ?> redisTemplate;
@Override
public boolean set(final String key, final String value) {
boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
@Override
public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
connection.set(serializer.serialize(key), serializer.serialize(value));
return true;
}
});
return result;
}
@Override
public String get(final String key){
String result = redisTemplate.execute(new RedisCallback<String>() {
@Override
public String doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
byte[] value = connection.get(serializer.serialize(key));
return serializer.deserialize(value);
}
});
return result;
}
@Override
public long del(final String key){
long result = redisTemplate.execute(new RedisCallback<Long>() {
@Override
public Long doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
long value = connection.del(serializer.serialize(key));
return value;
}
});
return result;
}
@Override
public boolean expire(final String key, long expire) {
return redisTemplate.expire(key, expire, TimeUnit.SECONDS);
}
@Override
public <T> boolean setList(String key, List<T> list) {
String value = JSON.toJSONString(list);
return set(key,value);
}
@Override
public <T> List<T> getList(String key,Class<T> clz) {
String json = get(key);
if(json!=null){
List<T> list = JSON.parseArray(json, clz);
return list;
}
return null;
}
@Override
public long lpush(final String key, Object obj) {
final String value = JSON.toJSONString(obj);
long result = redisTemplate.execute(new RedisCallback<Long>() {
@Override
public Long doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
long count = connection.lPush(serializer.serialize(key), serializer.serialize(value));
return count;
}
});
return result;
}
@Override
public long rpush(final String key, Object obj) {
final String value = JSON.toJSONString(obj);
long result = redisTemplate.execute(new RedisCallback<Long>() {
@Override
public Long doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
long count = connection.rPush(serializer.serialize(key), serializer.serialize(value));
return count;
}
});
return result;
}
@Override
public String lpop(final String key) {
String result = redisTemplate.execute(new RedisCallback<String>() {
@Override
public String doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
byte[] res = connection.lPop(serializer.serialize(key));
return serializer.deserialize(res);
}
});
return result;
}
}複製代碼
建立RedisController緩存
package com.example.demo.controller;
import com.example.demo.core.ret.RetResponse;
import com.example.demo.core.ret.RetResult;
import com.example.demo.service.RedisService;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
/**
* @author 張瑤
* @Description:
* @date 2018/4/30 11:28
*/
@RestController
@RequestMapping("redis")
public class RedisController {
@Resource
private RedisService redisService;
@PostMapping("/setRedis")
public RetResult<String> setRedis(String name) {
redisService.set("name",name);
return RetResponse.makeOKRsp(name);
}
@PostMapping("/getRedis")
public RetResult<String> getRedis() {
String name = redisService.get("name");
return RetResponse.makeOKRsp(name);
}
}複製代碼
輸入http://localhost:8080/redis/setRedis
bash
輸入http://localhost:8080/redis/getRedis
碼雲地址: gitee.com/beany/mySpr…
GitHub地址: github.com/MyBeany/myS…
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添加redis緩存功能已完成,後續功能接下來陸續更新,有問題能夠聯繫我mr_beany@163.com。另求各路大神指點,感謝你們。