import pymysql.cursors
class MySQLPipeline(object):
    def __init__(self):
        self.connect = pymysql.connect(
            host='127.0.0.1',
            port=3306,
            db='xxxx',
            user='root',
            passwd='xxxx',
            charset='utf8',
            use_unicode=True)
        self.cursor = self.connect.cursor()

    def process_item(self, item, spider):
        self.cursor.execute("sql_insert_command")
        self.connect.commit()
        return item