87 lines
2.0 KiB
Go
87 lines
2.0 KiB
Go
package database
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import (
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"context"
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"encoding/json"
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"fmt"
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"time"
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"dd_fiber_api/config"
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"github.com/redis/go-redis/v9"
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)
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// RedisClient Redis客户端
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type RedisClient struct {
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rdb *redis.Client
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}
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// NewRedisClient 创建Redis客户端
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func NewRedisClient(cfg *config.RedisConfig) (*RedisClient, error) {
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rdb := redis.NewClient(&redis.Options{
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Addr: fmt.Sprintf("%s:%d", cfg.Host, cfg.Port),
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Password: cfg.Password,
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DB: cfg.DB,
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PoolSize: cfg.PoolSize,
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MinIdleConns: cfg.MinIdleConns,
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})
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// 测试连接
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ctx := context.Background()
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if err := rdb.Ping(ctx).Err(); err != nil {
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return nil, fmt.Errorf("Redis连接失败: %w", err)
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}
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return &RedisClient{rdb: rdb}, nil
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}
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// Ping 测试Redis连接
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func (c *RedisClient) Ping(ctx context.Context) error {
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return c.rdb.Ping(ctx).Err()
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}
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// Set 设置键值对，带过期时间
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func (c *RedisClient) Set(ctx context.Context, key string, value interface{}, expiration time.Duration) error {
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jsonData, err := json.Marshal(value)
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if err != nil {
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return fmt.Errorf("序列化数据失败: %w", err)
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}
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return c.rdb.Set(ctx, key, jsonData, expiration).Err()
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}
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// Get 获取键值对
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func (c *RedisClient) Get(ctx context.Context, key string, dest interface{}) error {
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val, err := c.rdb.Get(ctx, key).Result()
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if err != nil {
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if err == redis.Nil {
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return fmt.Errorf("键不存在: %s", key)
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}
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return fmt.Errorf("获取键值失败: %w", err)
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}
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if err := json.Unmarshal([]byte(val), dest); err != nil {
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return fmt.Errorf("反序列化数据失败: %w", err)
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}
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return nil
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}
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// Exists 检查键是否存在
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func (c *RedisClient) Exists(ctx context.Context, key string) (bool, error) {
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count, err := c.rdb.Exists(ctx, key).Result()
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if err != nil {
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return false, fmt.Errorf("检查键存在性失败: %w", err)
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}
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return count > 0, nil
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}
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// Delete 删除键
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func (c *RedisClient) Delete(ctx context.Context, key string) error {
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return c.rdb.Del(ctx, key).Err()
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}
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// Close 关闭Redis连接
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func (c *RedisClient) Close() error {
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return c.rdb.Close()
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}
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