增加缓存RedisUtils工具类,提供了各种RedisTemplate各种语法糖,响应体R中增加内部调用是否成功判断R.isSuccess()方法,以及自定义返回指定状态码R.result(null, 1001, "业务提示")

This commit is contained in:
xianxin 2023-05-12 17:06:27 +08:00
parent d0ac469e01
commit 00984915b4
3 changed files with 828 additions and 0 deletions

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@ -76,6 +76,10 @@ public class R<T> implements Serializable {
return restResult(data, CommonConstants.FAIL, msg);
}
public static <T> R<T> result(T data, int code, String msg) {
return restResult(data, code, msg);
}
public static <T> R<T> restResult(T data, int code, String msg) {
R<T> apiResult = new R<>();
apiResult.setCode(code);
@ -84,4 +88,8 @@ public class R<T> implements Serializable {
return apiResult;
}
public Boolean isSuccess() {
return (this.code == CommonConstants.SUCCESS);
}
}

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@ -0,0 +1,819 @@
package com.pig4cloud.pig.common.core.util;
import cn.hutool.core.convert.Convert;
import lombok.experimental.UtilityClass;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.*;
import org.springframework.data.redis.core.script.DefaultRedisScript;
import org.springframework.data.redis.core.script.RedisScript;
import org.springframework.util.CollectionUtils;
import java.util.*;
import java.util.concurrent.TimeUnit;
/**
* 缓存工具类
*
* @author XX
* @date 2023/05/12
*/
@UtilityClass
public class RedisUtils {
private static final Long SUCCESS = 1L;
/**
* 指定缓存失效时间
*
* @param key
* @param time 时间()
*/
public boolean expire(String key, long time) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
if (time > 0) {
redisTemplate.expire(key, time, TimeUnit.SECONDS);
}
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 根据 key 获取过期时间
*
* @param key 不能为null
* @return 时间() 返回0代表为永久有效
*/
public long getExpire(Object key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
return redisTemplate.getExpire(key, TimeUnit.SECONDS);
}
/**
* 查找匹配key
*
* @param pattern key
* @return /
*/
public List<String> scan(String pattern) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
ScanOptions options = ScanOptions.scanOptions().match(pattern).build();
RedisConnectionFactory factory = redisTemplate.getConnectionFactory();
RedisConnection rc = Objects.requireNonNull(factory).getConnection();
Cursor<byte[]> cursor = rc.scan(options);
List<String> result = new ArrayList<>();
while (cursor.hasNext()) {
result.add(new String(cursor.next()));
}
try {
RedisConnectionUtils.releaseConnection(rc, factory);
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 分页查询 key
*
* @param patternKey key
* @param page 页码
* @param size 每页数目
* @return /
*/
public List<String> findKeysForPage(String patternKey, int page, int size) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
ScanOptions options = ScanOptions.scanOptions().match(patternKey).build();
RedisConnectionFactory factory = redisTemplate.getConnectionFactory();
RedisConnection rc = Objects.requireNonNull(factory).getConnection();
Cursor<byte[]> cursor = rc.scan(options);
List<String> result = new ArrayList<>(size);
int tmpIndex = 0;
int fromIndex = page * size;
int toIndex = page * size + size;
while (cursor.hasNext()) {
if (tmpIndex >= fromIndex && tmpIndex < toIndex) {
result.add(new String(cursor.next()));
tmpIndex++;
continue;
}
// 获取到满足条件的数据后,就可以退出了
if (tmpIndex >= toIndex) {
break;
}
tmpIndex++;
cursor.next();
}
try {
RedisConnectionUtils.releaseConnection(rc, factory);
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 判断key是否存在
*
* @param key
* @return true 存在 false不存在
*/
public boolean hasKey(String key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.hasKey(key);
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 删除缓存
*
* @param key 可以传一个值 或多个
*/
public void del(String... key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
if (key != null && key.length > 0) {
if (key.length == 1) {
redisTemplate.delete(key[0]);
} else {
redisTemplate.delete(CollectionUtils.arrayToList(key));
}
}
}
/**
* 获取锁
*
* @param lockKey 锁key
* @param value value
* @param expireTime单位-
* @return boolean
*/
public boolean getLock(String lockKey, String value, int expireTime) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
Boolean result = false;
try {
result = redisTemplate.opsForValue().setIfAbsent(lockKey, value, expireTime, TimeUnit.SECONDS);
if (null == result) {
result = false;
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 释放锁
*
* @param lockKey 锁key
* @param value value
* @return boolean
*/
public boolean releaseLock(String lockKey, String value) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
String script = "if redis.call('get', KEYS[1]) == ARGV[1] then return redis.call('del', KEYS[1]) else return 0 end";
RedisScript<Long> redisScript = new DefaultRedisScript<>(script, Long.class);
Object result = redisTemplate.execute(redisScript, Collections.singletonList(lockKey), value);
if (SUCCESS.equals(Convert.toLong(result))) {
return true;
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
// ============================String=============================
/**
* 普通缓存获取
*
* @param key
* @return
*/
public Object get(String key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
return key == null ? null : redisTemplate.opsForValue().get(key);
}
/**
* 批量获取
*
* @param keys
* @return
*/
public List<Object> multiGet(List<String> keys) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
Object obj = redisTemplate.opsForValue().multiGet(Collections.singleton(keys));
return null;
}
/**
* 普通缓存放入
*
* @param key
* @param value
* @return true成功 false失败
*/
public boolean set(String key, Object value) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForValue().set(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 普通缓存放入并设置时间
*
* @param key
* @param value
* @param time 时间() time要大于0 如果time小于等于0 将设置无限期
* @return true成功 false 失败
*/
public boolean set(String key, Object value, long time) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
if (time > 0) {
redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);
} else {
set(key, value);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 普通缓存放入并设置时间
*
* @param key
* @param value
* @param time 时间
* @param timeUnit 类型
* @return true成功 false 失败
*/
public boolean set(String key, Object value, long time, TimeUnit timeUnit) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
if (time > 0) {
redisTemplate.opsForValue().set(key, value, time, timeUnit);
} else {
set(key, value);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
// ================================Map=================================
/**
* HashGet
*
* @param key 不能为null
* @param item 不能为null
* @return
*/
public Object hget(String key, String item) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
return redisTemplate.opsForHash().get(key, item);
}
/**
* 获取hashKey对应的所有键值
*
* @param key
* @return 对应的多个键值
*/
public Map<Object, Object> hmget(String key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
return redisTemplate.opsForHash().entries(key);
}
/**
* HashSet
*
* @param key
* @param map 对应多个键值
* @return true 成功 false 失败
*/
public boolean hmset(String key, Map<String, Object> map) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForHash().putAll(key, map);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* HashSet 并设置时间
*
* @param key
* @param map 对应多个键值
* @param time 时间()
* @return true成功 false失败
*/
public boolean hmset(String key, Map<String, Object> map, long time) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForHash().putAll(key, map);
if (time > 0) {
expire(key, time);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
*
* @param key
* @param item
* @param value
* @return true 成功 false失败
*/
public boolean hset(String key, String item, Object value) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForHash().put(key, item, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
*
* @param key
* @param item
* @param value
* @param time 时间() 注意:如果已存在的hash表有时间,这里将会替换原有的时间
* @return true 成功 false失败
*/
public boolean hset(String key, String item, Object value, long time) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForHash().put(key, item, value);
if (time > 0) {
expire(key, time);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 删除hash表中的值
*
* @param key 不能为null
* @param item 可以使多个 不能为null
*/
public void hdel(String key, Object... item) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
redisTemplate.opsForHash().delete(key, item);
}
/**
* 判断hash表中是否有该项的值
*
* @param key 不能为null
* @param item 不能为null
* @return true 存在 false不存在
*/
public boolean hHasKey(String key, String item) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
return redisTemplate.opsForHash().hasKey(key, item);
}
/**
* hash递增 如果不存在,就会创建一个 并把新增后的值返回
*
* @param key
* @param item
* @param by 要增加几(大于0)
* @return
*/
public double hincr(String key, String item, double by) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
return redisTemplate.opsForHash().increment(key, item, by);
}
/**
* hash递减
*
* @param key
* @param item
* @param by 要减少记(小于0)
* @return
*/
public double hdecr(String key, String item, double by) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
return redisTemplate.opsForHash().increment(key, item, -by);
}
// ============================set=============================
/**
* 根据key获取Set中的所有值
*
* @param key
* @return
*/
public Set<Object> sGet(String key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForSet().members(key);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 根据value从一个set中查询,是否存在
*
* @param key
* @param value
* @return true 存在 false不存在
*/
public boolean sHasKey(String key, Object value) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForSet().isMember(key, value);
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将数据放入set缓存
*
* @param key
* @param values 可以是多个
* @return 成功个数
*/
public long sSet(String key, Object... values) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForSet().add(key, values);
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 将set数据放入缓存
*
* @param key
* @param time 时间()
* @param values 可以是多个
* @return 成功个数
*/
public long sSetAndTime(String key, long time, Object... values) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
Long count = redisTemplate.opsForSet().add(key, values);
if (time > 0) {
expire(key, time);
}
return count;
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 获取set缓存的长度
*
* @param key
* @return
*/
public long sGetSetSize(String key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForSet().size(key);
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 移除值为value的
*
* @param key
* @param values 可以是多个
* @return 移除的个数
*/
public long setRemove(String key, Object... values) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
Long count = redisTemplate.opsForSet().remove(key, values);
return count;
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 获集合key1和集合key2的差集元素
*
* @param key
* @return
*/
public Set<Object> sDifference(String key, String otherKey) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForSet().difference(key, otherKey);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
// ===============================list=================================
/**
* 获取list缓存的内容
*
* @param key
* @param start 开始
* @param end 结束 0 -1代表所有值
* @return
*/
public List<Object> lGet(String key, long start, long end) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForList().range(key, start, end);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 获取list缓存的长度
*
* @param key
* @return
*/
public long lGetListSize(String key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForList().size(key);
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 通过索引 获取list中的值
*
* @param key
* @param index 索引 index>=0时 0 表头1 第二个元素依次类推index<0时-1表尾-2倒数第二个元素依次类推
* @return
*/
public Object lGetIndex(String key, long index) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForList().index(key, index);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 将list放入缓存
*
* @param key
* @param value
* @return
*/
public boolean lSet(String key, Object value) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForList().rightPush(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
*
* @param key
* @param value
* @param time 时间()
* @return
*/
public boolean lSet(String key, Object value, long time) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForList().rightPush(key, value);
if (time > 0) {
expire(key, time);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
*
* @param key
* @param value
* @return
*/
public boolean lSet(String key, List<Object> value) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForList().rightPushAll(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
*
* @param key
* @param value
* @param time 时间()
* @return
*/
public boolean lSet(String key, List<Object> value, long time) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForList().rightPushAll(key, value);
if (time > 0) {
expire(key, time);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 根据索引修改list中的某条数据
*
* @param key
* @param index 索引
* @param value
* @return /
*/
public boolean lUpdateIndex(String key, long index, Object value) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
redisTemplate.opsForList().set(key, index, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 移除N个值为value
*
* @param key
* @param count 移除多少个
* @param value
* @return 移除的个数
*/
public long lRemove(String key, long count, Object value) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForList().remove(key, count, value);
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 将zSet数据放入缓存
*
* @param key
* @param time
* @param tuples
* @return
*/
public long zSetAndTime(String key, long time, Set<ZSetOperations.TypedTuple<Object>> tuples) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
Long count = redisTemplate.opsForZSet().add(key, tuples);
if (time > 0) {
expire(key, time);
}
return count;
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* Sorted set:有序集合获取
*
* @param key
* @param min
* @param max
* @return
*/
public Set<Object> zRangeByScore(String key, double min, double max) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
return zset.rangeByScore(key, min, max);
}
/**
* Sorted set:有序集合获取 正序
*
* @param key
* @param start
* @param end
* @return
*/
public Set<Object> zRange(String key, long start, long end) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
return zset.range(key, start, end);
}
/**
* Sorted set:有序集合获取 倒叙
*
* @param key
* @param start
* @param end
* @return
*/
public Set<Object> zReverseRange(String key, long start, long end) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
return zset.reverseRange(key, start, end);
}
/**
* 获取zSet缓存的长度
*
* @param key
* @return
*/
public long zGetSetSize(String key) {
RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
try {
return redisTemplate.opsForZSet().size(key);
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
}

View File

@ -4,3 +4,4 @@ com.pig4cloud.pig.common.core.config.RedisTemplateConfiguration
com.pig4cloud.pig.common.core.config.RestTemplateConfiguration
com.pig4cloud.pig.common.core.util.SpringContextHolder
com.pig4cloud.pig.common.core.config.WebMvcConfiguration
com.pig4cloud.pig.common.core.util.RedisUtils