diff --git a/src/server/app.py b/src/server/app.py
index eb99158..ca894c7 100644
--- a/src/server/app.py
+++ b/src/server/app.py
@@ -1,10 +1,12 @@
 from flask import Flask
-from flask import request
+from flask import request,send_file
 from flask_cors import CORS
 import util
 import db.model
 from db.model import Pic
 from db.connector import Session
+import config
+import os.path
 
 app = Flask(__name__)
 CORS(app)
@@ -15,19 +17,32 @@ def upload():
     # app.logger.debug("Got upload post.")
     if request.method != "POST":
         return "{status:'Err',msg:'only post is supported.'}"
-    pic_storage_dir='/home/dmy/doc/pic_storage'
-    f=request.files['up']
-    file_binary=f.read()
-    md5=util.md5(file_binary)
-    #先检查是否已经有图片了
-    session=Session()
-    # test_existed_pic=Pic(md5=md5)
-    if session.query(Pic.md5).filter(Pic.md5==md5).first() is not None:
-        app.logger.debug('pic with md5 {md5} esisted.'.format(md5=md5))
-        return '{ status:"succeed" }'
-    save_path='{pic_storage_dir}/{md5}'.format(pic_storage_dir=pic_storage_dir,md5=md5)
-    utc_now=util.utc_now()
-    db.model.add_pic(md5=md5,path=save_path,time=utc_now)
-    f.save(save_path)
+    pic_storage_dir = config.get("GENERAL", "Picture_Storage_Location")
+    f = request.files["up"]
+    file_binary = f.read()
+    md5 = util.md5(file_binary)
+    # 先检查是否已经有图片了
+    session = Session()
+    if session.query(Pic.md5).filter(Pic.md5 == md5).first() is not None:
+        app.logger.debug("pic with md5 {md5} esisted.".format(md5=md5))
+        # return '{ status:"succeed" }'
+    save_path = "{pic_storage_dir}/{md5}".format(
+        pic_storage_dir=pic_storage_dir, md5=md5
+    )
+    utc_now = util.utc_now()
+    db.model.add_pic(md5=md5, path=save_path, time=utc_now)
+    with open(save_path,'bw') as f_img:
+        f_img.write(file_binary)
     return '{ status:"succeed" }'
 
+
+@app.route("/img/<string:img_md5>")
+def img(img_md5):
+    pic_location_dir = config.get("GENERAL", "Picture_Storage_Location")
+    img_path = "{dir}/{file}".format(dir=pic_location_dir, file=img_md5)
+    if os.path.exists(img_path):
+        app.logger.debug('Visited imge {img_md5}'.format(img_md5=img_md5))
+        return send_file(img_path,mimetype='image/jpeg')
+    app.logger.debug('Non-existend image {img_md5} visited'.format(img_md5=img_md5))
+    return ""
+