重构代码；修改mapId为-1的exam_status表，表示考试状态

endian11

2020-08-13 a927c72c0f06ef5bd771e5ae00bc35155c271762

 im_lib/src/main/java/com/anyun/im_lib/HeartbeatHandler.java

@@ -1,7 +1,7 @@
package com.anyun.im_lib;

import com.anyun.im_lib.netty.NettyTcpClient;
import com.anyun.im_lib.util.MyLog;
import com.anyun.basecommonlib.MyLog;
import com.safeluck.aykj.utils.BytesUtils;

import io.netty.channel.ChannelHandlerContext;