{"id":4588,"date":"2019-07-31T18:23:23","date_gmt":"2019-07-31T10:23:23","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=4588"},"modified":"2019-07-31T18:23:23","modified_gmt":"2019-07-31T10:23:23","slug":"%e8%a7%a3%e5%86%b3python%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5%e8%b6%85%e6%97%b6%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/4588.html","title":{"rendered":"\u89e3\u51b3Python\u6570\u636e\u5e93\u8fde\u63a5\u8d85\u65f6\u95ee\u9898"},"content":{"rendered":"\n<p>=Start=<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u7f18\u7531\uff1a\">\u7f18\u7531\uff1a<\/h4>\n\n\n\n<p>\u7b80\u5355\u8bb0\u5f55\u4e00\u4e0b\u524d\u6bb5\u65f6\u95f4\u78b0\u5230\u7684\u5c0f\u95ee\u9898\u7684\u89e3\u51b3\u8bb0\u5f55\uff0c\u65b9\u4fbf\u4ee5\u540e\u53c2\u8003\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u6b63\u6587\uff1a\">\u6b63\u6587\uff1a<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u53c2\u8003\u89e3\u7b54\uff1a\">\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n\n\n\n<p>\u5bf9\u4e8e\u4e00\u4e2a\u4e0d\u662f\u5f88\u7e41\u5fd9\u7684\uff08\u5b58\u5728\u6570\u636e\u5e93\u8fde\u63a5\u7684\uff09\u540e\u53f0\u670d\u52a1\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u6570\u636e\u5e93\u8fde\u63a5\u81ea\u52a8\u65ad\u5f00\u7684\u60c5\u51b5\uff0c\u56e0\u4e3a\u6570\u636e\u5e93\u9ed8\u8ba4\u7684 wait_timeout=28800 \uff0c\u5355\u4f4d\u662f\u79d2\uff0c\u6362\u7b97\u540e\u662f8\u5c0f\u65f6\uff0c\u4e5f\u5c31\u662f\u4f60\u7684\u670d\u52a1\u542f\u52a88\u5c0f\u65f6\u540e\uff0c\u5982\u679c\u8fd9\u671f\u95f4\u6ca1\u6709\u4efb\u4f55SQL\u64cd\u4f5c\uff0c\u5c31\u4f1a\u88abMySQL\u81ea\u52a8\u65ad\u5f00\u3002\u5982\u679c\u6ca1\u6709\u81ea\u52a8\u68c0\u6d4b\u91cd\u8fde\u673a\u5236\uff0c\u670d\u52a1\u53ef\u80fd\u5c31\u4e0d\u53ef\u7528\u4e86\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u9009\u7528\u7684ORM\u6846\u67b6\u4f1a\u505a\u8fde\u63a5\u4fdd\u6d3b\u5904\u7406\u4e5f\u8fd8OK\uff0c\u5c31\u4e0d\u9700\u8981\u8003\u8651\u8fd9\u4e2a\u95ee\u9898\uff08\u4f46\u662f\u4f60\u4e5f\u8981\u4e86\u89e3\u6709\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ea\u4e0d\u8fc7\u662f\u6846\u67b6\u5e2e\u4f60\u5904\u7406\u4e86\uff09\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u9009\u62e9\u7684\u662fMySQLdb\/pymysql\u8fd9\u6837\u7684\u5e93\uff0c\u5c31\u9700\u8981\u81ea\u5df1\u5904\u7406\u8fd9\u4e2a\u95ee\u9898\uff1a<br>\u00b7 StackOverflow\u4e0a\u7684\u56de\u7b54\u662f\u5efa\u8bae\u4e0d\u8981\u4f7f\u7528\u5168\u5c40\u6e38\u6807\uff0c\u800c\u662f\u6bcf\u6b21\u4f7f\u7528\u7684\u65f6\u5019\u52a8\u6001\u521b\u5efa\u8fde\u63a5\uff0c\u4f7f\u7528\u4e86\u4e4b\u540e\u518d\u4e3b\u52a8\u9500\u6bc1\uff1b<br>\u00b7 \u53e6\u5916\u4e00\u4e2a\u529e\u6cd5\u5c31\u662f\u4f7f\u7528\u5168\u5c40\u6e38\u6807\uff0c\u4f46\u662f\u6bcf\u6b21\u5b9e\u9645SQL\u64cd\u4f5c\u4e4b\u524d\uff0c\u5148\u7528ping\u68c0\u67e5\u4e00\u4e0b\u8fde\u63a5\u72b6\u6001\uff0c\u4e0d\u884c\u7684\u4e86\u8bdd\u518d\u65b0\u5efa\u4e00\u4e2a\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u7684\u540e\u53f0\u670d\u52a1\u6bd4\u8f83\u7e41\u5fd9\uff0c\u90a3\u6700\u597d\u8fd8\u662f\u7528\u73b0\u6210\u7684\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u5de5\u5177\u6765\u5904\u7406\uff0c\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u90fd\u4f1a\u6bd4\u4e0a\u9762\u8fd9\u4e24\u79cd\u624b\u5de5\u7684\u65b9\u6cd5\u66f4\u597d\u3002<\/p>\n\n\n\n<p>&amp;<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import pymysql\n\nclass MySQL(object):\n    def __init__(self, host='127.0.0.1', port=3306, user='', passwd='', db='', charset=''):\n        self.host = host\n        self.port = port\n        self.user = user\n        self.passwd = passwd\n        self.db = db\n        self.charset = charset\n        self.conn = None\n        self.cur = None\n        self.__connect()\n\ndef __connect(self):\n    try:\n        self.conn = pymysql.connect(host=self.host, port=self.port, user=self.user, passwd=self.passwd, db=self.db, charset=self.charset)\n        self.cur = self.conn.cursor()\n    except pymysql.MySQLError as e:\n        print( 'Error Message: {}'.format(e) )\n\ndef conn_test(self):\n    try:\n        print( 'conn_test ping()' )\n        self.conn.ping(reconnect=True)\n    except pymysql.MySQLError as e:\n        print( 'Error Message: {}'.format(e) )\n        self.__connect()\n\ndef safe_query(self, mode, param_tuple):\n    self.conn_test()\n    ret_tuple = None\n    try:\n        self.cur.execute(mode, param_tuple)\n        ret_tuple = self.cur.fetchall()\n        self.conn.commit()\n    except pymysql.MySQLError as e:\n        print( 'Error Message: {}'.format(e) )\n    return ret_tuple\n\ndef safe_update(self, mode, param_tuple):\n    self.conn_test()\n    try:\n        self.cur.execute(mode, param_tuple)\n        self.conn.commit()\n    except pymysql.MySQLError as e:\n        self.conn.rollback()\n        print( 'Error Message: {}'.format(e) )\n\ndef close(self):\n    self.cur.close()\n    self.conn.close()\n    self.cur = None\n    self.conn = None\n\nmysql = MySQL(host='127.0.0.1', port=3306, user='user_name', passwd='user_pass', db='db_name', charset='utf8mb4')<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u53c2\u8003\u94fe\u63a5\uff1a\">\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>InterfaceError (0, \u201d)<\/strong><br><a href=\"https:\/\/stackoverflow.com\/questions\/6650940\/interfaceerror-0\">https:\/\/stackoverflow.com\/questions\/6650940\/interfaceerror-0<\/a><\/li><li><strong>Python MySQLdb\u6a21\u5757\u4e2d\u7684ping()<\/strong><br><a href=\"https:\/\/www.cnblogs.com\/bugmaker\/articles\/2444905.html\">https:\/\/www.cnblogs.com\/bugmaker\/articles\/2444905.html<\/a><\/li><li><strong>\u3010Python\u3011\u6570\u636e\u5e93\u5f02\u5e38pymysql.err.InterfaceError: (0, \u201d)\u89e3\u51b3\u65b9\u6848<\/strong><br><a href=\"https:\/\/blog.csdn.net\/u013948858\/article\/details\/88343426\">https:\/\/blog.csdn.net\/u013948858\/article\/details\/88343426<\/a><\/li><li><strong>\u89e3\u51b3 MySQLdb \u7684\u6570\u636e\u5e93\u8fde\u63a5\u8d85\u65f6\u95ee\u9898<\/strong><br><a href=\"https:\/\/lightless.me\/archives\/mysqldb-lost-connection-to-mysql.html\">https:\/\/lightless.me\/archives\/mysqldb-lost-connection-to-mysql.html<\/a><\/li><\/ul>\n\n\n\n<p>=END=<\/p>\n","protected":false},"excerpt":{"rendered":"<p>=Start= \u7f18\u7531\uff1a \u7b80\u5355\u8bb0\u5f55\u4e00\u4e0b\u524d\u6bb5\u65f6\u95f4\u78b0\u5230\u7684\u5c0f\u95ee\u9898\u7684\u89e3\u51b3\u8bb0\u5f55\uff0c\u65b9\u4fbf\u4ee5\u540e\u53c2\u8003\u3002 \u6b63\u6587\uff1a \u53c2\u8003\u89e3\u7b54\uff1a \u5bf9\u4e8e\u4e00 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,23,7],"tags":[1484,16,370,1483,8],"class_list":["post-4588","post","type-post","status-publish","format-standard","hentry","category-database","category-knowledgebase-2","category-programing","tag-interfaceerror","tag-mysql","tag-mysqldb","tag-pymysql","tag-python"],"views":9904,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=4588"}],"version-history":[{"count":1,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4588\/revisions"}],"predecessor-version":[{"id":4589,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4588\/revisions\/4589"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=4588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=4588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=4588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}