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?最近在启动项目的时时候，遇到够这样一个问题。找了很久发现是由于端口没有开启的原因导致的。需要开启端口就好了。

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Exception in thread "main" java.net.SocketException: Permission denied
        at sun.nio.ch.Net.bind(Native Method)
        at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:126)
        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
        at org.apache.mina.transport.socket.nio.NioSocketAcceptor.open(NioSocketAcceptor.java:201)
        at org.apache.mina.transport.socket.nio.NioSocketAcceptor.open(NioSocketAcceptor.java:51)
        at org.apache.mina.core.polling.AbstractPollingIoAcceptor.registerHandles(AbstractPollingIoAcceptor.java:543)
        at org.apache.mina.core.polling.AbstractPollingIoAcceptor.access$300(AbstractPollingIoAcceptor.java:67)
        at org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.run(AbstractPollingIoAcceptor.java:418)
        at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)

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