mirror of
https://github.com/silenceper/wechat.git
synced 2026-02-04 21:02:25 +08:00
* fix: correct non-standard 'yml' tag to 'yaml' in RedisOpts * fix: apply MaxActive config to Redis PoolSize * fix: clarify config semantics, enhance timeout & pool options, and maintain backward compatibility * test: update unit test for redis * refactor: apply suggestions from code review * test: add comprehensive coverage for redis * refactor: resolve funlen linter errors in redis unit tests * refactor: remove empty else-if branch in NewRedis function
148 lines
4.9 KiB
Go
148 lines
4.9 KiB
Go
package cache
|
||
|
||
import (
|
||
"context"
|
||
"crypto/tls"
|
||
"net"
|
||
"time"
|
||
|
||
"github.com/go-redis/redis/v8"
|
||
)
|
||
|
||
// Redis .redis cache
|
||
type Redis struct {
|
||
ctx context.Context
|
||
conn redis.UniversalClient
|
||
}
|
||
|
||
// RedisOpts redis 连接属性
|
||
type RedisOpts struct {
|
||
Host string `json:"host" yaml:"host"`
|
||
Username string `json:"username" yaml:"username"`
|
||
Password string `json:"password" yaml:"password"`
|
||
Database int `json:"database" yaml:"database"`
|
||
MinIdleConns int `json:"min_idle_conns" yaml:"min_idle_conns"` // 最小空闲连接数
|
||
PoolSize int `json:"pool_size" yaml:"pool_size"` // 连接池大小,0 表示使用默认值(即 CPU 核心数 * 10)
|
||
MaxRetries int `json:"max_retries" yaml:"max_retries"` // 最大重试次数,-1 表示不重试,0 表示使用默认值(即 3 次)
|
||
DialTimeout int `json:"dial_timeout" yaml:"dial_timeout"` // 连接超时时间(秒),0 表示使用默认值(即 5 秒)
|
||
ReadTimeout int `json:"read_timeout" yaml:"read_timeout"` // 读取超时时间(秒),-1 表示不超时,0 表示使用默认值(即 3 秒)
|
||
WriteTimeout int `json:"write_timeout" yaml:"write_timeout"` // 写入超时时间(秒),-1 表示不超时,0 表示使用默认值(即 ReadTimeout)
|
||
PoolTimeout int `json:"pool_timeout" yaml:"pool_timeout"` // 连接池获取连接超时时间(秒),0 表示使用默认值(即 ReadTimeout + 1 秒)
|
||
IdleTimeout int `json:"idle_timeout" yaml:"idle_timeout"` // 空闲连接超时时间(秒),-1 表示禁用空闲连接超时检查,0 表示使用默认值(即 5 分钟)
|
||
UseTLS bool `json:"use_tls" yaml:"use_tls"` // 是否使用 TLS
|
||
|
||
// Deprecated: 应使用 MinIdleConns 代替
|
||
MaxIdle int `json:"max_idle" yaml:"max_idle"`
|
||
// Deprecated: 应使用 PoolSize 代替
|
||
MaxActive int `json:"max_active" yaml:"max_active"`
|
||
}
|
||
|
||
// NewRedis 实例化
|
||
func NewRedis(ctx context.Context, opts *RedisOpts) *Redis {
|
||
uniOpt := &redis.UniversalOptions{
|
||
Addrs: []string{opts.Host},
|
||
DB: opts.Database,
|
||
Username: opts.Username,
|
||
Password: opts.Password,
|
||
MinIdleConns: opts.MinIdleConns,
|
||
PoolSize: opts.PoolSize,
|
||
MaxRetries: opts.MaxRetries,
|
||
}
|
||
|
||
// 兼容旧的 MaxIdle 参数,仅在未显式设置 MinIdleConns 时生效
|
||
if opts.MaxIdle > 0 && opts.MinIdleConns == 0 {
|
||
uniOpt.MinIdleConns = opts.MaxIdle
|
||
}
|
||
|
||
// 兼容旧的 MaxActive 参数,仅在未显式设置 PoolSize 时生效
|
||
if opts.MaxActive > 0 && opts.PoolSize == 0 {
|
||
uniOpt.PoolSize = opts.MaxActive
|
||
}
|
||
|
||
applyTimeout := func(seconds int, target *time.Duration) {
|
||
if seconds > 0 {
|
||
*target = time.Duration(seconds) * time.Second
|
||
} else if seconds == -1 {
|
||
// 当 seconds 为 -1 时,表示禁用超时:按 go-redis 约定,将超时时间设置为负值(如 -1ns)代表「无超时」
|
||
*target = -1
|
||
}
|
||
// 当 seconds 为 0 时,使用 go-redis 的默认超时配置:
|
||
// 不修改 target,保持其零值(0),由 go-redis 解释为“使用默认值”
|
||
}
|
||
|
||
applyTimeout(opts.DialTimeout, &uniOpt.DialTimeout)
|
||
applyTimeout(opts.ReadTimeout, &uniOpt.ReadTimeout)
|
||
applyTimeout(opts.WriteTimeout, &uniOpt.WriteTimeout)
|
||
applyTimeout(opts.PoolTimeout, &uniOpt.PoolTimeout)
|
||
applyTimeout(opts.IdleTimeout, &uniOpt.IdleTimeout)
|
||
|
||
if opts.UseTLS {
|
||
h, _, err := net.SplitHostPort(opts.Host)
|
||
if err != nil {
|
||
h = opts.Host
|
||
}
|
||
uniOpt.TLSConfig = &tls.Config{
|
||
ServerName: h,
|
||
}
|
||
}
|
||
|
||
conn := redis.NewUniversalClient(uniOpt)
|
||
return &Redis{ctx: ctx, conn: conn}
|
||
}
|
||
|
||
// SetConn 设置conn
|
||
func (r *Redis) SetConn(conn redis.UniversalClient) {
|
||
r.conn = conn
|
||
}
|
||
|
||
// SetRedisCtx 设置redis ctx 参数
|
||
func (r *Redis) SetRedisCtx(ctx context.Context) {
|
||
r.ctx = ctx
|
||
}
|
||
|
||
// Get 获取一个值
|
||
func (r *Redis) Get(key string) interface{} {
|
||
return r.GetContext(r.ctx, key)
|
||
}
|
||
|
||
// GetContext 获取一个值
|
||
func (r *Redis) GetContext(ctx context.Context, key string) interface{} {
|
||
result, err := r.conn.Do(ctx, "GET", key).Result()
|
||
if err != nil {
|
||
return nil
|
||
}
|
||
return result
|
||
}
|
||
|
||
// Set 设置一个值
|
||
func (r *Redis) Set(key string, val interface{}, timeout time.Duration) error {
|
||
return r.SetContext(r.ctx, key, val, timeout)
|
||
}
|
||
|
||
// SetContext 设置一个值
|
||
func (r *Redis) SetContext(ctx context.Context, key string, val interface{}, timeout time.Duration) error {
|
||
return r.conn.SetEX(ctx, key, val, timeout).Err()
|
||
}
|
||
|
||
// IsExist 判断key是否存在
|
||
func (r *Redis) IsExist(key string) bool {
|
||
return r.IsExistContext(r.ctx, key)
|
||
}
|
||
|
||
// IsExistContext 判断key是否存在
|
||
func (r *Redis) IsExistContext(ctx context.Context, key string) bool {
|
||
result, _ := r.conn.Exists(ctx, key).Result()
|
||
|
||
return result > 0
|
||
}
|
||
|
||
// Delete 删除
|
||
func (r *Redis) Delete(key string) error {
|
||
return r.DeleteContext(r.ctx, key)
|
||
}
|
||
|
||
// DeleteContext 删除
|
||
func (r *Redis) DeleteContext(ctx context.Context, key string) error {
|
||
return r.conn.Del(ctx, key).Err()
|
||
}
|