diff --git a/rest/image_cache_dao.go b/rest/image_cache_dao.go
index bff2f10..7380d71 100644
--- a/rest/image_cache_dao.go
+++ b/rest/image_cache_dao.go
@@ -141,6 +141,31 @@ func (this *ImageCacheDao) Delete(imageCache *ImageCache) {
 
 	if err != nil {
 		LogError(fmt.Sprintf("删除磁盘上的文件出错，不做任何处理"))
-		//this.PanicError(err)
 	}
 }
+
+//删除一个matter对应的所有缓存
+func (this *ImageCacheDao) DeleteByMatterUuid(matterUuid string) {
+
+	var wp = &WherePair{}
+
+	wp = wp.And(&WherePair{Query: "matter_uuid = ?", Args: []interface{}{matterUuid}})
+
+	//查询出即将删除的图片缓存
+	var imageCaches []*ImageCache
+	db := this.context.DB.Where(wp.Query, wp.Args).Find(&imageCaches)
+	this.PanicError(db.Error)
+
+	//删除文件记录
+	db = this.context.DB.Where(wp.Query, wp.Args).Delete(ImageCache{})
+	this.PanicError(db.Error)
+
+	//删除文件实体
+	for _, imageCache := range imageCaches {
+		err := os.Remove(CONFIG.MatterPath + imageCache.Path)
+		if err != nil {
+			LogError(fmt.Sprintf("删除磁盘上的文件出错，不做任何处理"))
+		}
+	}
+
+}
diff --git a/rest/image_cache_model.go b/rest/image_cache_model.go
index 3be6fda..a36369f 100644
--- a/rest/image_cache_model.go
+++ b/rest/image_cache_model.go
@@ -7,7 +7,7 @@ type ImageCache struct {
 	Base
 	UserUuid   string  `json:"userUuid"`
 	MatterUuid string  `json:"matterUuid"`
-	Uri        string  `json:"name"`
+	Uri        string  `json:"uri"`
 	Md5        string  `json:"md5"`
 	Size       int64   `json:"size"`
 	Path       string  `json:"path"`
diff --git a/rest/matter_dao.go b/rest/matter_dao.go
index 9991d9e..05890cc 100644
--- a/rest/matter_dao.go
+++ b/rest/matter_dao.go
@@ -11,6 +11,18 @@ import (
 
 type MatterDao struct {
 	BaseDao
+	imageCacheDao *ImageCacheDao
+}
+
+//初始化方法
+func (this *MatterDao) Init(context *Context) {
+	this.BaseDao.Init(context)
+
+	//手动装填本实例的Bean. 这里必须要用中间变量方可。
+	b := context.GetBean(this.imageCacheDao)
+	if b, ok := b.(*ImageCacheDao); ok {
+		this.imageCacheDao = b
+	}
 }
 
 //按照Id查询文件
@@ -22,9 +34,7 @@ func (this *MatterDao) FindByUuid(uuid string) *Matter {
 	if db.Error != nil {
 		return nil
 	}
-
 	return &matter
-
 }
 
 //按照Id查询文件
@@ -214,7 +224,6 @@ func (this *MatterDao) Delete(matter *Matter) {
 
 		for _, f := range matters {
 			this.Delete(f)
-
 		}
 
 		//删除文件夹本身
@@ -222,15 +231,18 @@ func (this *MatterDao) Delete(matter *Matter) {
 		this.PanicError(db.Error)
 
 	} else {
+		//删除数据库中文件记录
 		db := this.context.DB.Delete(&matter)
 		this.PanicError(db.Error)
 
+		//删除对应的缓存图片。
+		this.imageCacheDao.DeleteByMatterUuid(matter.Uuid)
+
 		//删除文件
 		err := os.Remove(CONFIG.MatterPath + matter.Path)
 
 		if err != nil {
 			LogError(fmt.Sprintf("删除磁盘上的文件出错，不做任何处理"))
-			//this.PanicError(err)
 		}
 
 	}