数据库连接出错，错误信息：php_network_getaddresses: getaddrinfo failed: Name or service not knowndocument.writeln('         <a href="/h5?c=im&go=PQ==" target="_blank">');
document.writeln('            <div id="my-history" class="toolbar-ico online-service2">');
document.writeln('                <i></i>');
document.writeln('                <em>在线客服</em>');
document.writeln('            </div>');
document.writeln('        </a>');