diff --git a/requestspool_client/__init__.py b/requestspool_client/__init__.py
index 57e9ee1..93644bc 100644
--- a/requestspool_client/__init__.py
+++ b/requestspool_client/__init__.py
@@ -105,27 +105,37 @@ def receive(self):
         return result
 
 
+class RequestsPoolCheck(object):
+    def __init__(self, server_url):
+        import requests
+        import re
+        try:
+            # 获取路由
+            routes = json.loads(requests.get(server_url + "/admin/route/all").content).get("route")
+        except:
+            print "尚未启动服务或服务运行异常"
+            raise ImportError
+        self.patterns = [re.compile(s) for s in routes if isinstance(s, basestring)]
+
+    def check(self, url):
+        for p in self.patterns:
+            if p.match(url):
+                return True
+        return False
+
 def patch_requests(server="localhost:8801"):
-    import requests
-    import re
-    try:
-        # 获取路由
-        routes = json.loads(requests.get("http://%s/admin/route/all" % server).content).get("route")
-    except:
-        print "尚未启动服务或服务运行异常"
-        raise ImportError
-    patterns = [re.compile(s) for s in routes if isinstance(s, basestring)]
+    import requests.api
+    server_url = "http://" + server
     # patch
-    old_request = requests.request
+    old_request = requests.api.request
+    check = RequestsPoolCheck(server_url)
 
     def new_request(method, url, **kwargs):
-        need_proxy = False
-        for p in patterns:
-            if p.match(url):
-                need_proxy = True
-                break
-        if need_proxy:
+        if url.startswith(server_url):
+            return old_request(method, url, **kwargs)
+
+        if check.check(url):
             url = 'http://{server}/{url}'.format(server=server, url=url)
         return old_request(method, url, **kwargs)
 
-    requests.request = new_request
+    requests.api.request = new_request