增加markdown支持。

handlers/post.go

@@ -8,6 +8,7 @@ import (
 
 	"goblog/database"
 	"goblog/models"
+	"goblog/utils"
 
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
@@ -47,6 +48,21 @@ type UpdatePostRequest struct {
 	IsTop      bool     `json:"is_top"`
 }
 
+// Markdown 预览请求
+type MarkdownPreviewRequest struct {
+	Content string `json:"content"`
+}
+
+// PreviewMarkdown 将 Markdown 渲染为 HTML（后台编辑器预览用）
+func PreviewMarkdown(c *gin.Context) {
+	var req MarkdownPreviewRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"html": string(utils.RenderMarkdown(req.Content))})
+}
+
 // 生成 slug
 func generateSlug(title string) string {
 	slug := strings.ToLower(title)

handlers/view.go

@@ -11,6 +11,7 @@ import (
 	"goblog/config"
 	"goblog/database"
 	"goblog/models"
+	"goblog/utils"
 
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
@@ -37,6 +38,7 @@ func templateFuncs() template.FuncMap {
 		"html": func(s string) template.HTML {
 			return template.HTML(s)
 		},
+		"markdown": utils.RenderMarkdown,
 	}
 }