摘要： JxtaMulticastSocket覆写了java.net.MulticastSocket的bind方法：@Override public void bind(SocketAddress addr) throws SocketException { if (isBound()) { throw new SocketException("Already bound"); } } 要求在JxtaMulticastSocket的构造函数中会调用bind方法，确保构造函数调用时socket没有被绑定，否则抛出SocketException... 阅读全文