分页展示列表

server.go

@@ -14,8 +14,12 @@ import (
 type IndexData struct {
 	Folders map[string]int
 	Mails   interface{}
-}
+	CurrentPage int
+	NextPage,PrePage string
+	NumPages map[string]template.HTML
 
+}
+const PAGE_SIZE=20
 func main() {
 	log.Println("listen on 8080...")
 	http.HandleFunc("/", index)
@@ -69,16 +73,44 @@ func list(w http.ResponseWriter, r *http.Request) {
 	authStrings := strings.Split(auth, "|")
 
 	render := new(IndexData)
+	render.CurrentPage = currentPage
+	var prePage int
+	if(currentPage-1) <=0 {
+		prePage=1
+	}else{
+		prePage=currentPage-1
+	}
+	render.PrePage = fmt.Sprintf("/list?fid=%s&page=%d",fid,prePage)
+	render.NextPage = fmt.Sprintf("/list?fid=%s&page=%d",fid,currentPage+1)
+
 	var wg sync.WaitGroup
 	wg.Add(1)
 	go func() {
 		defer wg.Done()
-		folders :=tools.GetFolders(authStrings[0], authStrings[1], authStrings[2])
+		folders :=tools.GetFolders(authStrings[0], authStrings[1], authStrings[2],fid)
 		render.Folders = folders
 	}()
-	mails := tools.GetFolderMail(authStrings[0], authStrings[1], authStrings[2], fid,currentPage, 20)
+	mails := tools.GetFolderMail(authStrings[0], authStrings[1], authStrings[2], fid,currentPage, PAGE_SIZE)
 	render.Mails = mails
 	wg.Wait()
+
+	PageCount:=(render.Folders[fid]/PAGE_SIZE)
+	log.Println(PageCount)
+	numPages:=""
+	start:=currentPage-5
+	if start <=0 {
+		start=1
+	}
+	end:=start+11
+
+	for i:=start;i<end;i++{
+		active:=""
+		if currentPage==i{
+			active="active"
+		}
+		numPages+=fmt.Sprintf("<li class=\"page-item %s\"><a class=\"page-link\" href=\"/list?fid=%s&page=%d\">%d</a></li>",active,fid,i,i)
+	}
+	render.NumPages=map[string]template.HTML{"NumPages": template.HTML(numPages)}
 	t, _ := template.ParseFiles("./tmpl/index.html")
 	t.Execute(w, render)
 }

tmpl/index.html

@@ -39,6 +39,17 @@
                 </li>
             {{end}}
         </ul>
+        <nav aria-label="..." style="margin:20px 0;">
+            <ul class="pagination">
+                <li class="page-item">
+                    <a class="page-link" href="{{.PrePage}}">Previous</a>
+                </li>
+                {{.NumPages.NumPages}}
+                <li class="page-item">
+                    <a class="page-link" href="{{.NextPage}}">Next</a>
+                </li>
+            </ul>
+        </nav>
     </div>
 </div>
 </body>

tools/imap.go

@@ -56,7 +56,7 @@ func connect(server string, email string, password string)*client.Client{
 	return c
 }
 //获取邮件夹
-func GetFolders(server string, email string, password string)map[string]int{
+func GetFolders(server string, email string, password string,folder string)map[string]int{
 	var c *client.Client
 	//defer c.Logout()
 	c=connect(server,email,password)
@@ -75,7 +75,7 @@ func GetFolders(server string, email string, password string)map[string]int{
 		folders[m.Name]=0
 	}
 	for m,_ := range folders {
-		if m=="INBOX" {
+		if m==folder {
 			mbox, _ := c.Select(m, true)
 			if mbox != nil {
 				folders[m] = int(mbox.Messages)