今日排错

Caused by: java.net.SocketException: Connection reset at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:328) at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:355) at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:808) at java.base/java.net.Socket$SocketInputStream.read(Socket.java:966) at com.mysql.cj.protocol.ReadAheadInputStream.fill(ReadAheadInputStream.java:107) at com.mysql.cj.protocol.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:150) at com.mysql.cj.protocol.ReadAheadInputStream.read(ReadAheadInputStream.java:180) at java.base/java.io.FilterInputStream.read(FilterInputStream.java:132) at com.mysql.cj.protocol.FullReadInputStream.readFully(FullReadInputStream.java:64) at com.mysql.cj.protocol.a.SimplePacketReader.readHeaderLocal(SimplePacketReader.java:81) at com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:63) at com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:45) at com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:575) ... 100 common frames omitted Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@2d5a954d]

原因分析：数据没有启动

怎样解决：启动数据服务即可