2025最新房屋租赁系统源码

package cn.zwz.basics.redis; import io.swagger.annotations.ApiOperation; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.redis.connection.DataType; import org.springframework.data.redis.connection.RedisConnection; import org.springframework.data.redis.connection.RedisConnectionFactory; import org.springframework.data.redis.core.Cursor; import org.springframework.data.redis.core.ScanOptions; import org.springframework.data.redis.core.StringRedisTemplate; import org.springframework.data.redis.core.ZSetOperations; import org.springframework.stereotype.Component; import java.nio.charset.StandardCharsets; import java.util.*; import java.util.concurrent.TimeUnit; import java.util.function.Consumer; /** * Redis工具类 */ @Component public class RedisTemplateHelper { @Autowired private StringRedisTemplate redisTemplate; @ApiOperation(value = "scan实现") private void scan(String wayForScan, Consumer<byte[]> consumableList) { redisTemplate.execute((RedisConnection connection) -> { try (Cursor<byte[]> cursor = connection.scan(ScanOptions.scanOptions().count(Long.MAX_VALUE).match(wayForScan).build())) { cursor.forEachRemaining(consumableList); return null; } catch (Exception exception) { throw new RuntimeException(exception); } }); } @ApiOperation(value = "scan获取符合条件的key") public Set<String> scan(String pattern) { Set<String> keys = new HashSet<>(); this.scan(pattern, item -> { String key = new String(item, StandardCharsets.UTF_8); keys.add(key); }); return keys; } @ApiOperation(value = "通过通配符表达式删除所有") public void deleteByPattern(String pattern) { Set<String> keys = this.scan(pattern); redisTemplate.delete(keys); } @ApiOperation(value = "删除key") public void delete(String key) { redisTemplate.delete(key); } @ApiOperation(value = "批量删除key") public void delete(Collection<String> keys) { redisTemplate.delete(keys); } @ApiOperation(value = "序列化key") public byte[] dump(String key) { return redisTemplate.dump(key); } @ApiOperation(value = "是否存在key") public Boolean hasKey(String key) { return redisTemplate.hasKey(key); } @ApiOperation(value = "设置过期时间") public Boolean expire(String key, long timeout, TimeUnit unit) { return redisTemplate.expire(key, timeout, unit); } @ApiOperation(value = "设置过期时间") public Boolean expireAt(String key, Date date) { return redisTemplate.expireAt(key, date); } @ApiOperation(value = "查找匹配的key") public Set<String> keys(String pattern) { return redisTemplate.keys(pattern); } @ApiOperation(value = "将当前数据库的 key 移动到给定的数据库 db 当中") public Boolean move(String key, int dbIndex) { return redisTemplate.move(key, dbIndex); } @ApiOperation(value = "移除 key 的过期时间，key 将持久保持") public Boolean persist(String key) { return redisTemplate.persist(key); } @ApiOperation(value = "返回 key 的剩余的过期时间") public Long getExpire(String key, TimeUnit unit) { return redisTemplate.getExpire(key, unit); } @ApiOperation(value = "返回 key 的剩余的过期时间") public Long getExpire(String key) { return redisTemplate.getExpire(key); } @ApiOperation(value = "从当前数据库中随机返回一个 key") public String randomKey() { return redisTemplate.randomKey(); } @ApiOperation(value = "修改 key 的名称") public void rename(String oldKey, String newKey) { redisTemplate.rename(oldKey, newKey); } @ApiOperation(value = "仅当 newkey 不存在时，将 oldKey 改名为 newkey") public Boolean renameIfAbsent(String oldKey, String newKey) { return redisTemplate.renameIfAbsent(oldKey, newKey); } @ApiOperation(value = "返回 key 所储存的值的类型") public DataType type(String key) { return redisTemplate.type(key); } /** -------------------string相关操作--------------------- */ @ApiOperation(value = "设置指定 key 的值") public void set(String key, String value) { redisTemplate.opsForValue().set(key, value); } @ApiOperation(value = "将值 value 关联到 key ，并将 key 的过期时间设为 timeout") public void set(String key, String value, long timeout, TimeUnit unit) { redisTemplate.opsForValue().set(key, value, timeout, unit); } @ApiOperation(value = "获取指定 key 的值") public String get(String key) { return redisTemplate.opsForValue().get(key); } @ApiOperation(value = "返回 key 中字符串值的子字符") public String getRange(String key, long start, long end) { return redisTemplate.opsForValue().get(key, start, end); } @ApiOperation(value = "将给定 key 的值设为 value ，并返回 key 的旧值(old value)") public String getAndSet(String key, String value) { return redisTemplate.opsForValue().getAndSet(key, value); } @ApiOperation(value = "对 key 所储存的字符串值，获取指定偏移量上的位(bit)") public Boolean getBit(String key, long offset) { return redisTemplate.opsForValue().getBit(key, offset); } @ApiOperation(value = "批量获取") public List<String> multiGet(Collection<String> keys) { return redisTemplate.opsForValue().multiGet(keys); } @ApiOperation(value = "设置ASCII码, 字符串'a'的ASCII码是97, 转为二进制是'01100001', 此方法是将二进制第offset位值变为value",notes = "offset 位置, value: 值,true为1, false为0") public boolean setBit(String key, long offset, boolean value) { return redisTemplate.opsForValue().setBit(key, offset, value); } @ApiOperation(value = "只有在 key 不存在时设置 key 的值",notes = "之前已经存在返回false, 不存在返回true") public boolean setIfAbsent(String key, String value) { return redisTemplate.opsForValue().setIfAbsent(key, value); } @ApiOperation(value = "用 value 参数覆写给定 key 所储存的字符串值，从偏移量 offset 开始",notes = "offset:从指定位置开始覆写") public void setRange(String key, String value, long offset) { redisTemplate.opsForValue().set(key, value, offset); } @ApiOperation(value = "获取字符串的长度") public Long size(String key) { return redisTemplate.opsForValue().size(key); } @ApiOperation(value = "批量添加") public void multiSet(Map<String, String> maps) { redisTemplate.opsForValue().multiSet(maps); } @ApiOperation(value = "同时设置一个或多个 key-value 对，当且仅当所有给定 key 都不存在") public boolean multiSetIfAbsent(Map<String, String> maps) { return redisTemplate.opsForValue().multiSetIfAbsent(maps); } @ApiOperation(value = "增加(自增长), 负数则为自减") public Long incrBy(String key, long increment) { return redisTemplate.opsForValue().increment(key, increment); } @ApiOperation(value = "增加(自增长)") public Double incrByFloat(String key, double increment) { return redisTemplate.opsForValue().increment(key, increment); } @ApiOperation(value = "追加到末尾") public Integer append(String key, String value) { return redisTemplate.opsForValue().append(key, value); } // hash表 @ApiOperation(value = "获取存储在哈希表中指定字段的值") public Object hGet(String key, String field) { return redisTemplate.opsForHash