diff --git a/backend/app/api/cert.go b/backend/app/api/cert.go
index e435b2d..1d05588 100644
--- a/backend/app/api/cert.go
+++ b/backend/app/api/cert.go
@@ -41,7 +41,7 @@ func UploadCert(c *gin.Context) {
 	}
 	form.Key = strings.TrimSpace(form.Key)
 	form.Cert = strings.TrimSpace(form.Cert)
-
+	
 	if form.Key == "" {
 		public.FailMsg(c, "名称不能为空")
 		return
@@ -50,12 +50,12 @@ func UploadCert(c *gin.Context) {
 		public.FailMsg(c, "类型不能为空")
 		return
 	}
-	err = cert.UploadCert(form.Key, form.Cert)
+	sha256, err := cert.UploadCert(form.Key, form.Cert)
 	if err != nil {
 		public.FailMsg(c, err.Error())
 		return
 	}
-	public.SuccessMsg(c, "添加成功")
+	public.SuccessData(c, sha256, 0)
 	return
 }
 
@@ -83,7 +83,7 @@ func DelCert(c *gin.Context) {
 
 func DownloadCert(c *gin.Context) {
 	ID := c.Query("id")
-
+	
 	if ID == "" {
 		public.FailMsg(c, "ID不能为空")
 		return
@@ -93,11 +93,11 @@ func DownloadCert(c *gin.Context) {
 		public.FailMsg(c, err.Error())
 		return
 	}
-
+	
 	// 构建 zip 包（内存中）
 	buf := new(bytes.Buffer)
 	zipWriter := zip.NewWriter(buf)
-
+	
 	for filename, content := range certData {
 		if filename == "cert" || filename == "key" {
 			writer, err := zipWriter.Create(filename + ".pem")
@@ -118,10 +118,10 @@ func DownloadCert(c *gin.Context) {
 		return
 	}
 	// 设置响应头
-
+	
 	zipName := strings.ReplaceAll(certData["domains"], ".", "_")
 	zipName = strings.ReplaceAll(zipName, ",", "-")
-
+	
 	c.Header("Content-Type", "application/zip")
 	c.Header("Content-Disposition", "attachment; filename="+zipName+".zip")
 	c.Data(200, "application/zip", buf.Bytes())
diff --git a/backend/internal/cert/apply/apply.go b/backend/internal/cert/apply/apply.go
index d4c22d4..60b7f68 100644
--- a/backend/internal/cert/apply/apply.go
+++ b/backend/internal/cert/apply/apply.go
@@ -39,18 +39,18 @@ func GetDNSProvider(providerName string, creds map[string]string) (challenge.Pro
 		config.SecretID = creds["secret_id"]
 		config.SecretKey = creds["secret_key"]
 		return tencentcloud.NewDNSProviderConfig(config)
-
+	
 	// case "cloudflare":
 	// 	config := cloudflare.NewDefaultConfig()
 	// 	config.AuthToken = creds["CLOUDFLARE_API_TOKEN"]
 	// 	return cloudflare.NewDNSProviderConfig(config)
-
+	
 	case "aliyun":
 		config := alidns.NewDefaultConfig()
 		config.APIKey = creds["access_key"]
 		config.SecretKey = creds["access_secret"]
 		return alidns.NewDNSProviderConfig(config)
-
+	
 	default:
 		return nil, fmt.Errorf("不支持的 DNS Provider: %s", providerName)
 	}
@@ -62,7 +62,7 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 		return nil, err
 	}
 	defer db.Close()
-
+	
 	email, ok := cfg["email"].(string)
 	if !ok {
 		return nil, fmt.Errorf("参数错误：email")
@@ -84,7 +84,11 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 	default:
 		return nil, fmt.Errorf("参数错误：provider_id")
 	}
-
+	domainArr := strings.Split(domains, ",")
+	for i := range domainArr {
+		domainArr[i] = strings.TrimSpace(domainArr[i])
+	}
+	
 	// 获取上次申请的证书
 	runId, ok := cfg["_runId"].(string)
 	if !ok {
@@ -114,11 +118,17 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 				var maxDays float64
 				var maxItem map[string]any
 				for i := range certs {
+					if !public.ContainsAllIgnoreBRepeats(strings.Split(certs[i]["domains"].(string), ","), domainArr) {
+						continue
+					}
 					endTimeStr, ok := certs[i]["end_time"].(string)
 					if !ok {
 						continue
 					}
-					endTime, _ := time.Parse(layout, endTimeStr)
+					endTime, err := time.Parse(layout, endTimeStr)
+					if err != nil {
+						continue
+					}
 					diff := endTime.Sub(time.Now()).Hours() / 24
 					if diff > maxDays {
 						maxDays = diff
@@ -131,10 +141,10 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 				if !ok || cfgEnd <= 0 {
 					cfgEnd = 30
 				}
-
+				
 				if int(maxDays) > cfgEnd {
 					// 证书未过期，直接返回
-					logger.Debug(fmt.Sprintf("上次证书申请成功，剩余天数：%d 大于%d天，已跳过申请复用此证书", int(maxDays), cfgEnd))
+					logger.Debug(fmt.Sprintf("上次证书申请成功,域名：%s，剩余天数：%d 大于%d天，已跳过申请复用此证书", certObj["domains"], int(maxDays), cfgEnd))
 					return map[string]any{
 						"cert":       certObj["cert"],
 						"key":        certObj["key"],
@@ -145,7 +155,7 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 		}
 	}
 	logger.Debug("正在申请证书，域名: " + domains)
-
+	
 	user, err := LoadUserFromDB(db, email)
 	if err != nil {
 		logger.Debug("acme账号不存在，注册新账号")
@@ -154,10 +164,10 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 			Email: email,
 			key:   privateKey,
 		}
-
+		
 		config := lego.NewConfig(user)
 		config.Certificate.KeyType = certcrypto.EC384
-
+		
 		client, err := lego.NewClient(config)
 		if err != nil {
 			return nil, err
@@ -168,14 +178,14 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 			return nil, err
 		}
 		user.Registration = reg
-
+		
 		err = SaveUserToDB(db, user)
 		if err != nil {
 			return nil, err
 		}
 		logger.Debug("账号注册并保存成功")
 	}
-
+	
 	// 初始化 ACME 客户端
 	client, err := lego.NewClient(lego.NewConfig(user))
 	if err != nil {
@@ -196,13 +206,13 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 	if err != nil {
 		return nil, err
 	}
-
+	
 	// DNS 验证
 	provider, err := GetDNSProvider(providerStr, providerConfig)
 	if err != nil {
 		return nil, fmt.Errorf("创建 DNS provider 失败: %v", err)
 	}
-
+	
 	err = client.Challenge.SetDNS01Provider(provider,
 		dns01.WrapPreCheck(func(domain, fqdn, value string, check dns01.PreCheckFunc) (bool, error) {
 			// 跳过预检查
@@ -215,29 +225,29 @@ func Apply(cfg map[string]any, logger *public.Logger) (map[string]any, error) {
 	if err != nil {
 		return nil, err
 	}
-
+	
 	// fmt.Println(strings.Split(domains, ","))
 	request := certificate.ObtainRequest{
-		Domains: strings.Split(domains, ","),
+		Domains: domainArr,
 		Bundle:  true,
 	}
 	certObj, err := client.Certificate.Obtain(request)
 	if err != nil {
 		return nil, err
 	}
-
+	
 	certStr := string(certObj.Certificate)
 	keyStr := string(certObj.PrivateKey)
 	issuerCertStr := string(certObj.IssuerCertificate)
-
+	
 	// 保存证书和私钥
 	data := map[string]any{
 		"cert":       certStr,
 		"key":        keyStr,
 		"issuerCert": issuerCertStr,
 	}
-
-	err = cert.SaveCert("workflow", keyStr, certStr, issuerCertStr, runId)
+	
+	_, err = cert.SaveCert("workflow", keyStr, certStr, issuerCertStr, runId)
 	if err != nil {
 		return nil, err
 	}
diff --git a/backend/internal/cert/cert.go b/backend/internal/cert/cert.go
index 979bf3a..c9e0473 100644
--- a/backend/internal/cert/cert.go
+++ b/backend/internal/cert/cert.go
@@ -26,7 +26,7 @@ func GetList(search string, p, limit int64) ([]map[string]any, int, error) {
 		return data, 0, err
 	}
 	defer s.Close()
-
+	
 	var limits []int64
 	if p >= 0 && limit >= 0 {
 		limits = []int64{0, limit}
@@ -35,7 +35,7 @@ func GetList(search string, p, limit int64) ([]map[string]any, int, error) {
 			limits[1] = p * limit
 		}
 	}
-
+	
 	if search != "" {
 		count, err = s.Where("domains like ?", []interface{}{"%" + search + "%"}).Count()
 		data, err = s.Where("domains like ?", []interface{}{"%" + search + "%"}).Limit(limits).Order("create_time", "desc").Select()
@@ -80,7 +80,7 @@ func AddCert(source, key, cert, issuer, issuerCert, domains, sha256, historyId,
 			workflowId = wh[0]["workflow_id"].(string)
 		}
 	}
-
+	
 	now := time.Now().Format("2006-01-02 15:04:05")
 	_, err = s.Insert(map[string]any{
 		"source":      source,
@@ -104,40 +104,40 @@ func AddCert(source, key, cert, issuer, issuerCert, domains, sha256, historyId,
 	return nil
 }
 
-func SaveCert(source, key, cert, issuerCert, historyId string) error {
+func SaveCert(source, key, cert, issuerCert, historyId string) (string, error) {
 	if err := public.ValidateSSLCertificate(cert, key); err != nil {
-		return err
+		return "", err
 	}
-
+	
 	certObj, err := public.ParseCertificate([]byte(cert))
 	if err != nil {
-		return fmt.Errorf("解析证书失败: %v", err)
+		return "", fmt.Errorf("解析证书失败: %v", err)
 	}
 	// SHA256
 	sha256, err := public.GetSHA256(cert)
 	if err != nil {
-		return fmt.Errorf("获取 SHA256 失败: %v", err)
+		return "", fmt.Errorf("获取 SHA256 失败: %v", err)
 	}
 	if d, _ := GetCert(sha256); d != nil {
-		return nil
+		return sha256, nil
 	}
-
+	
 	domainSet := make(map[string]bool)
-
+	
 	if certObj.Subject.CommonName != "" {
 		domainSet[certObj.Subject.CommonName] = true
 	}
 	for _, dns := range certObj.DNSNames {
 		domainSet[dns] = true
 	}
-
+	
 	// 转成切片并拼接成逗号分隔的字符串
 	var domains []string
 	for domain := range domainSet {
 		domains = append(domains, domain)
 	}
 	domainList := strings.Join(domains, ",")
-
+	
 	// 提取 CA 名称（Issuer 的组织名）
 	caName := "UNKNOWN"
 	if len(certObj.Issuer.Organization) > 0 {
@@ -149,20 +149,20 @@ func SaveCert(source, key, cert, issuerCert, historyId string) error {
 	startTime := certObj.NotBefore.Format("2006-01-02 15:04:05")
 	endTime := certObj.NotAfter.Format("2006-01-02 15:04:05")
 	endDay := fmt.Sprintf("%d", int(certObj.NotAfter.Sub(time.Now()).Hours()/24))
-
+	
 	err = AddCert(source, key, cert, caName, issuerCert, domainList, sha256, historyId, startTime, endTime, endDay)
 	if err != nil {
-		return fmt.Errorf("保存证书失败: %v", err)
+		return "", fmt.Errorf("保存证书失败: %v", err)
 	}
-	return nil
+	return sha256, nil
 }
 
-func UploadCert(key, cert string) error {
-	err := SaveCert("upload", key, cert, "", "")
+func UploadCert(key, cert string) (string, error) {
+	sha256, err := SaveCert("upload", key, cert, "", "")
 	if err != nil {
-		return fmt.Errorf("保存证书失败: %v", err)
+		return sha256, fmt.Errorf("保存证书失败: %v", err)
 	}
-	return nil
+	return sha256, nil
 }
 
 func DelCert(id string) error {
@@ -171,7 +171,7 @@ func DelCert(id string) error {
 		return err
 	}
 	defer s.Close()
-
+	
 	_, err = s.Where("id=?", []interface{}{id}).Delete()
 	if err != nil {
 		return err
@@ -185,7 +185,7 @@ func GetCert(id string) (map[string]string, error) {
 		return nil, err
 	}
 	defer s.Close()
-
+	
 	res, err := s.Where("id=? or sha256=?", []interface{}{id, id}).Select()
 	if err != nil {
 		return nil, err
@@ -193,13 +193,13 @@ func GetCert(id string) (map[string]string, error) {
 	if len(res) == 0 {
 		return nil, fmt.Errorf("证书不存在")
 	}
-
+	
 	data := map[string]string{
 		"domains": res[0]["domains"].(string),
 		"cert":    res[0]["cert"].(string),
 		"key":     res[0]["key"].(string),
 	}
-
+	
 	return data, nil
 }
 
diff --git a/backend/internal/cert/deploy/ssh.go b/backend/internal/cert/deploy/ssh.go
index 12ccda3..ad4e331 100644
--- a/backend/internal/cert/deploy/ssh.go
+++ b/backend/internal/cert/deploy/ssh.go
@@ -133,11 +133,11 @@ func DeploySSH(cfg map[string]any) error {
 	}
 	beforeCmd, ok := cfg["beforeCmd"].(string)
 	if !ok {
-		return fmt.Errorf("参数错误：beforeCmd")
+		beforeCmd = ""
 	}
 	afterCmd, ok := cfg["afterCmd"].(string)
 	if !ok {
-		return fmt.Errorf("参数错误：afterCmd")
+		afterCmd = ""
 	}
 	providerData, err := access.GetAccess(providerID)
 	if err != nil {
diff --git a/backend/internal/workflow/executor.go b/backend/internal/workflow/executor.go
index 8633bb1..0c09c55 100644
--- a/backend/internal/workflow/executor.go
+++ b/backend/internal/workflow/executor.go
@@ -8,6 +8,7 @@ import (
 	"ALLinSSL/backend/public"
 	"errors"
 	"fmt"
+	"strconv"
 )
 
 // var executors map[string]func(map[string]any) (any, error)
@@ -33,7 +34,7 @@ func Executors(exec string, params map[string]any) (any, error) {
 
 func apply(params map[string]any) (any, error) {
 	logger := params["logger"].(*public.Logger)
-
+	
 	logger.Info("=============申请证书=============")
 	certificate, err := certApply.Apply(params, logger)
 	if err != nil {
@@ -67,28 +68,54 @@ func deploy(params map[string]any) (any, error) {
 func upload(params map[string]any) (any, error) {
 	logger := params["logger"].(*public.Logger)
 	logger.Info("=============上传证书=============")
-
-	keyStr, ok := params["key"].(string)
-	if !ok {
-		logger.Error("上传的密钥有误")
-		logger.Info("=============上传失败=============")
-		return nil, errors.New("上传的密钥有误")
+	// 判断证书id走本地还是走旧上传，应在之后的迭代中移除旧代码
+	if params["cert_id"] == nil {
+		keyStr, ok := params["key"].(string)
+		if !ok {
+			logger.Error("上传的密钥有误")
+			logger.Info("=============上传失败=============")
+			return nil, errors.New("上传的密钥有误")
+		}
+		certStr, ok := params["cert"].(string)
+		if !ok {
+			logger.Error("上传的证书有误")
+			logger.Info("=============上传失败=============")
+			return nil, errors.New("上传的证书有误")
+		}
+		_, err := cert.UploadCert(keyStr, certStr)
+		if err != nil {
+			logger.Error(err.Error())
+			logger.Info("=============上传失败=============")
+			return nil, err
+		}
+		logger.Info("=============上传成功=============")
+		
+		return params, nil
+	} else {
+		certId := ""
+		switch v := params["cert_id"].(type) {
+		case float64:
+			certId = strconv.Itoa(int(v))
+		case string:
+			certId = v
+		default:
+			logger.Info("=============上传证书获取失败=============")
+			return nil, errors.New("证书 ID 类型错误")
+		}
+		certObj, err := cert.GetCert(certId)
+		if err != nil {
+			logger.Error(err.Error())
+			logger.Info("=============上传证书获取失败=============")
+			return nil, err
+		}
+		if certObj == nil {
+			logger.Error("证书不存在")
+			logger.Info("=============上传证书获取失败=============")
+			return nil, errors.New("证书不存在")
+		}
+		logger.Debug(fmt.Sprintf("证书 ID: %s", certId))
+		return certObj, nil
 	}
-	certStr, ok := params["cert"].(string)
-	if !ok {
-		logger.Error("上传的证书有误")
-		logger.Info("=============上传失败=============")
-		return nil, errors.New("上传的证书有误")
-	}
-	err := cert.UploadCert(keyStr, certStr)
-	if err != nil {
-		logger.Error(err.Error())
-		logger.Info("=============上传失败=============")
-		return nil, err
-	}
-	logger.Info("=============上传成功=============")
-
-	return params, nil
 }
 
 func notify(params map[string]any) (any, error) {
diff --git a/backend/public/utils.go b/backend/public/utils.go
index a60431e..811b86e 100644
--- a/backend/public/utils.go
+++ b/backend/public/utils.go
@@ -179,3 +179,24 @@ func GetPublicIP() (string, error) {
 	
 	return string(body), nil
 }
+
+func ContainsAllIgnoreBRepeats(a, b []string) bool {
+	// 构建 A 的集合
+	setA := make(map[string]struct{})
+	for _, item := range a {
+		setA[item] = struct{}{}
+	}
+	
+	// 遍历 B 的唯一元素，判断是否在 A 中
+	seen := make(map[string]struct{})
+	for _, item := range b {
+		if _, checked := seen[item]; checked {
+			continue
+		}
+		seen[item] = struct{}{}
+		if _, ok := setA[item]; !ok {
+			return false
+		}
+	}
+	return true
+}