增加通过excel批量添加用户的功能，支持导入后自动发邮件

server/admin/api_user.go

@@ -5,9 +5,10 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
+	"os"
 	"strconv"
 	"strings"
 	"text/template"
@@ -80,7 +81,7 @@ func UserDetail(w http.ResponseWriter, r *http.Request) {
 func UserSet(w http.ResponseWriter, r *http.Request) {
 	_ = r.ParseForm()
 
-	body, err := ioutil.ReadAll(r.Body)
+	body, err := io.ReadAll(r.Body)
 	if err != nil {
 		RespError(w, RespInternalErr, err)
 		return
@@ -111,7 +112,28 @@ func UserSet(w http.ResponseWriter, r *http.Request) {
 	sessdata.CloseUserLimittimeSession()
 	RespSucess(w, nil)
 }
-
+func UserUpload(w http.ResponseWriter, r *http.Request) {
+	r.ParseMultipartForm(8 << 20)
+	file, header, err := r.FormFile("file")
+	if err != nil || !strings.Contains(header.Filename, ".xlsx") || !strings.Contains(header.Filename, ".xls") {
+		RespError(w, RespInternalErr, "文件解析失败:仅支持xlsx或xls文件")
+		return
+	}
+	defer file.Close()
+	newFile, err := os.Create(base.Cfg.FilesPath + header.Filename)
+	if err != nil {
+		RespError(w, RespInternalErr, "创建文件失败:", err)
+		return
+	}
+	defer newFile.Close()
+	io.Copy(newFile, file)
+	if err = UploadUser(newFile.Name()); err != nil {
+		RespError(w, RespInternalErr, err)
+		return
+	}
+	os.Remove(base.Cfg.FilesPath + header.Filename)
+	RespSucess(w, "批量添加成功")
+}
 func UserDel(w http.ResponseWriter, r *http.Request) {
 	_ = r.ParseForm()
 	idS := r.FormValue("id")