pq mysql 增加 connection

的超时时间以及重试次数，
后续在下游 初始化 pq mysql 的时候会增加数据库连接失败的报警

applications/pqMysql.py

@@ -2,63 +2,79 @@
 @author: luojunhui
 """
 import pymysql
+from applications.decoratorApi import retryOnTimeout
 
 
 class PQMySQL(object):
     """
     PQ Mysql
     """
-    connection = pymysql.connect(
-        host='rm-bp1159bu17li9hi94.mysql.rds.aliyuncs.com',
-        port=3306,
-        user='crawler',
-        password='crawler123456@',
-        db='piaoquan-crawler',
-        charset='utf8mb4'
-    )
 
-    @classmethod
-    def update(cls, sql, params):
+    @retryOnTimeout()
+    def __init__(self):
+        self.connection = pymysql.connect(
+            host='rm-bp1159bu17li9hi94.mysql.rds.aliyuncs.com',
+            port=3306,
+            user='crawler',
+            password='crawler123456@',
+            db='piaoquan-crawler',
+            charset='utf8mb4',
+            connect_timeout=120
+        )
+
+    def insert(self, sql, params):
         """
         更新
         :return:
         """
-        cursor = cls.connection.cursor()
+        cursor = self.connection.cursor()
         try:
             cursor.execute(sql, params)
             affected = cursor.rowcount
-            cls.connection.commit()
+            self.connection.commit()
             return affected
+        except Exception as e:
+            self.connection.rollback()
+            raise e
 
+    def update(self, sql, params):
+        """
+        更新
+        :return:
+        """
+        cursor = self.connection.cursor()
+        try:
+            cursor.execute(sql, params)
+            affected = cursor.rowcount
+            self.connection.commit()
+            return affected
         except Exception as e:
-            print(e)
-            cls.connection.rollback()
+            self.connection.rollback()
             raise e
 
-    @classmethod
-    def select(cls, sql):
+    def select(self, sql):
         """
         查询
         :param sql:
         :return:
         """
-        cursor = cls.connection.cursor()
+        cursor = self.connection.cursor()
         cursor.execute(sql)
         result = cursor.fetchall()
         return result
 
-    @classmethod
-    def insertMany(cls, sql, params_list):
+    def insertMany(self, sql, params_list):
         """
         :param sql:
         :param params_list:
         :return:
         """
-        cursor = cls.connection.cursor()
+        cursor = self.connection.cursor()
         try:
             cursor.executemany(query=sql, args=params_list)
-            cls.connection.commit()
+            affected = cursor.rowcount
+            self.connection.commit()
+            return affected
         except Exception as e:
-            print("Insert Many Defeat--{}".format(e))
-            cls.connection.rollback()
-            raise e
+            self.connection.rollback()
+            raise e