Refine the context and Try to fix the nil issue.

code/rest/image_cache_service.go

@@ -3,6 +3,7 @@ package rest
 import (
 	"fmt"
 	"github.com/disintegration/imaging"
+	"github.com/eyebluecn/tank/code/core"
 	"github.com/eyebluecn/tank/code/tool/util"
 	"image"
 	"net/http"
@@ -25,17 +26,17 @@ func (this *ImageCacheService) Init() {
 	this.Bean.Init()
 
 	//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)
+	b := core.CONTEXT.GetBean(this.imageCacheDao)
 	if b, ok := b.(*ImageCacheDao); ok {
 		this.imageCacheDao = b
 	}
 
-	b = CONTEXT.GetBean(this.userDao)
+	b = core.CONTEXT.GetBean(this.userDao)
 	if b, ok := b.(*UserDao); ok {
 		this.userDao = b
 	}
 
-	b = CONTEXT.GetBean(this.matterDao)
+	b = core.CONTEXT.GetBean(this.matterDao)
 	if b, ok := b.(*MatterDao); ok {
 		this.matterDao = b
 	}