升级依赖，集成aj-captcha-go方便二开

server/util/aj-captcha-go/service/mem_cache_service.go

@@ -0,0 +1,48 @@
+package service
+
+import (
+	"strconv"
+	"x_admin/util/aj-captcha-go/util"
+)
+
+type MemCacheService struct {
+	Cache *util.CacheUtil
+}
+
+func NewMemCacheService(captchaCacheMaxNumber int) CaptchaCacheInterface {
+	return &MemCacheService{Cache: util.NewCacheUtil(captchaCacheMaxNumber)}
+}
+
+func (l *MemCacheService) Get(key string) string {
+	return l.Cache.Get(key)
+}
+
+func (l *MemCacheService) Set(key string, val string, expiresInSeconds int) {
+	l.Cache.Set(key, val, expiresInSeconds)
+}
+
+func (l *MemCacheService) Delete(key string) {
+	l.Cache.Delete(key)
+}
+
+func (l *MemCacheService) Exists(key string) bool {
+	return l.Cache.Exists(key)
+}
+
+func (l *MemCacheService) GetType() string {
+	return "mem"
+}
+
+func (l *MemCacheService) Increment(key string, val int) int {
+	cacheVal := l.Cache.Get(key)
+	num, err := strconv.Atoi(cacheVal)
+	if err != nil {
+		num = 0
+	}
+
+	ret := num + val
+
+	l.Cache.Set(key, strconv.Itoa(ret), 0)
+
+	return ret
+}