47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
package data
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import (
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"context"
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"github.com/go-redis/redis/v8"
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"time"
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"weather_and_earthquake/internal/config"
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)
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var _redis *redis.Client
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var _expire time.Duration
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// 初始化 redis 连接
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func InitWeatherCache(ctx context.Context, data *config.Redis) error {
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_redis = redis.NewClient(&redis.Options{
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Addr: data.Addr,
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Password: data.Password,
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DB: data.DB,
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ReadTimeout: data.ReadTimeout * time.Second,
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WriteTimeout: data.WriteTimeout * time.Second,
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PoolSize: data.PoolSize,
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MinIdleConns: data.MinIdleConns,
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})
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_expire = data.Expire
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_, err := _redis.Ping(ctx).Result()
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return err
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}
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// 设置某个地方的天气情况，默认保留1小时数据
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func SetWeatherCondition(ctx context.Context, key, condition string) error {
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_, err := _redis.SetNX(ctx, key, condition, _expire*time.Second).Result()
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return err
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}
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// 查找某个地方的天气情况
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func GetWeatherCondition(ctx context.Context, key string) (string, error) {
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value, err := _redis.Get(ctx, key).Result()
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if err == nil {
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return value, nil
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} else if err == redis.Nil {
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return "", nil
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} else {
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return "", err
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}
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}
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