处理gbk乱码

server.go

@@ -15,6 +15,7 @@ type IndexData struct {
 	Folders map[string]int
 	Mails   interface{}
 	CurrentPage int
+	Fid string
 	NextPage,PrePage string
 	NumPages template.HTML
 
@@ -89,6 +90,8 @@ func list(w http.ResponseWriter, r *http.Request) {
 		defer wg.Done()
 		folders :=tools.GetFolders(authStrings[0], authStrings[1], authStrings[2],fid)
 		render.Folders = folders
+		render.Fid = fid
+
 		PageCount:= render.Folders[fid]/PAGE_SIZE
 		log.Println(PageCount)
 		numPages:=""

tmpl/index.html

@@ -32,10 +32,10 @@
     </div>
     <div class="col-md-9">
         <ul class="list-group">
-            <li class="list-group-item active">邮件列表</li>
+            <li class="list-group-item active">[{{.Fid}}]邮件列表</li>
             {{ range $key, $value := .Mails}}
                 <li class="list-group-item d-flex justify-content-between align-items-center">
-                    {{$value}}
+                    {{$value}}{{if eq $value "" }}无标题{{end}}
                 </li>
             {{end}}
         </ul>

tools/imap.go

@@ -104,6 +104,9 @@ func GetFolderMail(server string, email string, password string,folder string,cu
 	mbox, _ := c.Select(folder, true)
 	to := mbox.Messages-uint32((currentPage-1)*pagesize)
 	from := to-uint32(pagesize)
+	if to <=uint32(pagesize){
+		from=1
+	}
 
 	seqset := new(imap.SeqSet)
 	seqset.AddRange(from, to)
@@ -126,6 +129,19 @@ func GetFolderMail(server string, email string, password string,folder string,cu
 			//ret:=bytes.NewReader(content)
 			//ret:=transform.NewReader(bytes.NewReader(content), simplifiedchinese.HZGB2312.NewEncoder())
 
+			utf8str:=ConvertToStr(string(content),"gbk","utf-8")
+			t:=bytes.NewReader([]byte(utf8str))
+			//ret:=utf8.DecodeRune(t)
+			//log.Println(ret)
+			return t, nil
+		case "gbk":
+			content, err := ioutil.ReadAll(input)
+			if err != nil {
+				return nil, err
+			}
+			//ret:=bytes.NewReader(content)
+			//ret:=transform.NewReader(bytes.NewReader(content), simplifiedchinese.HZGB2312.NewEncoder())
+
 			utf8str:=ConvertToStr(string(content),"gbk","utf-8")
 			t:=bytes.NewReader([]byte(utf8str))
 			//ret:=utf8.DecodeRune(t)
@@ -150,6 +166,7 @@ func GetFolderMail(server string, email string, password string,folder string,cu
 		}
 	}
 	for msg:=range messages{
+
 		ret,err:=dec.Decode(msg.Envelope.Subject)
 		if err!=nil{
 			ret,_=dec.DecodeHeader(msg.Envelope.Subject)