java.io.IOException: 应用程序没有调用 WSAStartup，或者 WSAStartup 失败。

2019-05-17 16:38:26.387 [lettuce-nioEventLoop-4-1] INFO io.lettuce.core.protocol.CommandHandler - null Unexpected exception during request: java.io.IOException: 应用程序没有调用 WSAStartup，或者 WSAStartup 失败。
java.io.IOException: 应用程序没有调用 WSAStartup，或者 WSAStartup 失败。
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
at sun.nio.ch.IOUtil.read(IOUtil.java:192)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288)
at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1108)
at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:345)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:148)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)atio.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)atjava.lang.Thread.run(Thread.java:748)2019-05-1716:38:26.389[http-nio-9001-Acceptor-0]ERRORorg.apache.tomcat.util.net.NioEndpoint-Socketacceptfailedjava.io.IOException:一个封锁操作被对WSACancelBlockingCall的调用中断。atsun.nio.ch.ServerSocketChannelImpl.accept0(NativeMethod)atsun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)atsun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)atorg.apache.tomcat.util.net.NioEndpoint$Acceptor.run(NioEndpoint.java:455)
at java.lang.Thread.run(Thread.java:748)
2019-05-17 16:38:26.393 [RMI TCP Accept-2826] WARN sun.rmi.transport.tcp - RMI TCP Accept-2826: accept loop for ServerSocket[addr=0.0.0.0/0.0.0.0,localport=2826] throws
java.net.SocketException: socket closed
at java.net.DualStackPlainSocketImpl.accept0(Native Method)
at java.net.DualStackPlainSocketImpl.socketAccept(DualStackPlainSocketImpl.java:131)
at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:409)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:199)
at java.net.ServerSocket.implAccept(ServerSocket.java:545)
at java.net.ServerSocket.accept(ServerSocket.java:513)
at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:400)atsun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:372)
at java.lang.Thread.run(Thread.java:748)

问题描述：java代码在main方法中可以执行，如果这段代码放入到项目组执行就报上面的错误；
答案：是代码底层通信的问题